Nebotek (III) - 10 Years

While preparing the previous post, I had to revisit an old piece I wrote in 2013. It ended with this sentence:

“Nebotek pens are indeed good and interesting products, but their poor marketing makes them almost unknown. And anonymous.”

Nebotek catalog from 2012.

That was the pen I was introducing: a very well-made pen with no obvious brand, a beautiful business card without a name on it.

Four Eboya/Nebotek pens from different moments in their evolution.

But much has changed since that pen was released—no later than 2013. In 2014, the brand changed its name, and the pens began to carry it engraved on the barrel: “Eboya — MADE IN TOKYO.”

Eboya catalog in 2019.

Then, in 2016, came the bigger transformation. Nikko Ebonite, the parent company, replaced the traditional rokuro with a couple of digital lathes. Pen production was simplified—only one filling system remained—and expanded. At the same time, the brand’s presence in international markets grew through a number of retailers: Nibs.com and Anderson Pens in the United States in 2015, and Sakura Fountain Pen Gallery and Inktraveler in Europe in 2016 and 2017, respectively. (Since then, other retailers began carrying Eboya, even as Anderson Pens ceased operations at the end of 2024—its founders later returning as Cardinal Pens & Paper, though without Eboya in their catalogue—and Sakura Fountain Pen Gallery dropped Eboya from its portfolio).

So, in ten years, Nebotek became Eboya. It went from being a collection of essentially anonymous pens to becoming a point of reference in Japan’s fountain-pen scene.

Nebotek Hôga, medium size – Sailor Tomikei Blue

Bruno Taut
October 12th, 2026
etiquetas: Nebotek, Eboya, mercado

Nebotek (II)

Before Eboya, there was Nebotek.

Nebotek was the pen brand that Nikko Ebonite created in 2009 to market pens made from its own ebonite, following a sharp decline in sales of the raw material.

Nebotek catalog in 2012-13.

The operation was led by lathe master Kanesaki Noritoshi, who had learned his trade from Momose Yasuaki and Kubo Kohei. Production was based on the use of the traditional Japanese lathe, or rokuro, to shape the company's in-house ebonite. The nibs and feeds were supplied by Bock.

One of the rokuro at Nikko Ebonite (2016).

Between 2009 and 2014, the pens were branded as Nebotek, while the online shop selling ebonite products was called Eboya. In essence, however, the pens were anonymous: the only identifying mark was the Bock logo on the nib, which pointed to Germany rather than to their Japanese maker.

This changed in January 2014, when Nikko Ebonite discontinued the Nebotek name and adopted Eboya for its pens. The company also began engraving the brand name on the barrel, together with the motto “MADE IN TOKYO.”

The pen on display today is, in fact, an anonymous Nebotek: a model Hôga in size M, fitted with a 14-karat gold Bock nib and an ebonite feed. Its filling system is the traditional Japanese eyedropper, a design invented by Onoto.

Nebotek Hôga M, Japanese eyedropper.

This detail adds to the pen’s charm. Under Mr. Kanesaki’s direction, three filling systems were available for Nebotek and Eboya pens: cartridge-converter, button filler, and Japanese eyedropper (inki-dome shiki in Japanese). This changed after he left Nikko Ebonite, following the company’s decision to introduce computerized lathes into pen production in 2016. As a result, only the efficient, clean and boring cartridge-converter system survived in Eboya’s fountain-pen lineup.

All these details make this pen —this inki-dome Nebotek— particularly special.

Its dimensions are as follows:
Length closed: 144 mm
Length, open: 136 mm
Length, posted: 175 mm
Diameter: 15.0 mm
Weight, dry: 21.1 g
Ink deposit: 3.0 ml

Ohashido Kagero – Pilot Iroshizuku Yama-budo

Bruno Taut
September 25th, 2026
etiquetas: Nebotek, Bock, Kanesaki Noritoshi, Eboya

Eboya tan-pen

Very often, speaking about Eboya implies some element of frustration—that of Eboya pens being exclusively cartridge-converters. And when not —the nominally eyedropper model Yuzen—, they still are cartridge-converters.

So, the Eboya market policy seems limited to release new models and new ebonite colors as long as the filling system did not change. And such is the case of the newer model, the tan-pen (in lower case).

The Eboya tan-pen. Only 97 mm long.

Its originality comes from its size: very small, very short; just 97 mm in length closed. And the well-known Eboya construction quality does the rest: the cap posts very securely onto the barrel. The result is a regular sized pen, even if on the shorter side. The price to pay is that it can only be inked with short cartridges (or as eyedropper).

Very secure posting. 133 mm long.

A size 5 nib by Bock. Note the new logo of the brand on the cap.

The tan-pen is certainly attractive and original, and represents a new approach to pens in the Eboya catalog. My only complain is that the company does not make it in black—you can choose almost any color but black. A black tan-pen, though, is available at sale events as a demonstration pen for potential customers, but is not for sale.

Any color but black.

These are the dimensions of the tan-pen:

Length closed: 97 mm
Length open: 91 mm
Length posted: 133 mm
Diameter: 12.2 mm
Weight: 11.7 g (dry)
Ink deposit: 0.8 ml (short standard cartridge)

The price, JPY 31200, plus taxes.

Lamy Accent – Franklin Christoph Urushi Red.


Bruno Taut
October 31st, 2022
etiquetas: Eboya, mercado

Eboya's Eyedroppers

Eboya, the pen brand of Nikko Ebonite, shifted gears in 2016. Lathe master Noritoshi Kanesaki left the company and the production moved to using a CNC lathe instead of the traditional “rokuro”. And it was at this moment that Eboya fountain pens relied solely on clean and boring cartridges and converters.

This situation came to an end, somehow, with the introduction of the model Yuzen in 2020. This pen was specifically designed to be used as an eyedropper filler, but a plain one at that, without any sealing system. And to do so, the pen implemented a rubber gasket –an o-ring— on the section to provide a tight seal when screwed onto the barrel. And the packaging includes an eyedropper and some spare o-rings.

The very elegant Eboya Yuzen.

The section of the Yuzen. The o-ring is right behind the thread.

But at the same time, the Yuzen can also be used with a cartridge or a converter.

The Yuzen, with a converter.

The slightly older model Kobue is intended as a cartridge/converter pen, but its design also includes a gasket on the section, making this pen apt to be filled as an eyedropper.

The Eboya Kobue. The o-ring is visible before the thread.

Are these Eboya models the only eyedropper fillers? I do not think so—Eboya pens do not use internal metallic parts, and the manufacture is precise enough to not leaking should their barrels be filled with ink. In other words, with or without gaskets, all modern Eboya fountain pens work properly as eyedropper fillers (caution is advised, though).

This Eboya Hakobune is not intended as eyedropper pen, but it works as such (although not on the picture, obviously).

And that's the bottom line—all Eboya pens work well as eyedroppers and there was no need to create any specific model, however attractive. After all, these models do not fill the gap opened in 2016 when the last Japanese eyedroppers (and previously button fillers) were manufactured by Eboya.

Namiki Urushi 50 – Unknown red ink

Bruno Taut
March 11th, 2022
etiquetas: Eboya, soluciones técnicas

Japanese Ebonite

In many a pen forum, the Pilot Custom Urushi, marketed initially in 2016, raised a discussion—what is better, a Custom Urushi or a Sailor King of Pen (KoP)?

The answer to that question depends heavily on the market where you were located. In Japan, for instance, the Sailor KoP is in general cheaper than the Custom Urushi, but that is not the case in many other markets.

Custom Urushi or Sailor King Profit Ebonite?

However, I wonder whether those two pens belonged to the same category. Sure they both implement large nibs, but the urushi layer of the Pilot sets it apart and adds some refinement the Sailor lacks both in the plastic and ebonite models. The urushi, in other words, might be enough to justify the higher price of the Custom Urushi in the Japanese market. And, consequently, an even more expensive KoP would necessarily be at loss with respect to the Pilot.

More apt to comparison, in my opinion, are the Sailor King Profit made of ebonite and the Eboya Hakobune XL. Both pens are made of ebonite without any additional coating, both sport size 8 nibs, both are full sized. And both cost around JPY 75000.

Eboya Hakobune XL or Sailor King Profit Ebonite?

Their differences are also clear. The KoP has a plastic section –the same section valid for all KoP models. The Eboya, conversely, is completely made of ebonite.

The weakest element of the Eboya might be the nib—a German-made Bock clearly labeled as such. In exchange, the feed is made of ebonite, which is something that many aficionados appreciate.

Hakobune XL's nib and feed--18 K gold and ebonite.

The problem the buyer might have is the limited distribution of these two models. Sailor seems focused on mode expensive versions of the KoP series of pens, and finding the King Profit in ebonite is very difficult lately. On its side, Eboya's Hakobune XL is not in the regular catalog of the company, and its availability depends on the supply of the Bock 380 system.

Conspicuously absent in this discussion is Platinum. And that because Platinum does not make any nib of a similar size. Platinum's strategy for luxury pens seem based on the decoration and not on the nib.

Platinum Izumo and Nakaya Cigar. Platinum's sense of luxury is associated to the decoration rather than to the nib.

And now, the decision of what to buy is up to everyone of us.

Pilot, Eboya or Sailor? Up to you.

Arenton silver rings – Unknown blue-black ink

Bruno Taut
Nakano, May 13th 2021
etiquetas: Pilot, Platinum, Eboya, Bock, Sailor, plumín, mercado

Japanese Eyedropper Today (II). Opus 88 Koloro

In 2016, Eboya stopped the production of Japanese eyedropper pens. These pens were always more expensive that the equivalent versions with cartridge/converter or with button filler systems—the Japanese eyedroppers were between JPY 59000 and JPY 83000, plus taxes. But despite these prices, these pens were the cheapest eyedropper in the market. The next step was –still is— the size 50 Namiki Urushi at JPY 148000.

An old Eboya with Japanese Eyedropper.

On this scenario, the Opus 88 Koloro made its appearance in 2017.

The Opus 88 Koloro in its package.

The company Opus 88 –Jin Gi industrial Company— has been in the market since 1977. But from 1988 on its main business  was the production of OEM pens for other companies, Danitrio and Taccia among them. In the local market of Taiwan, Opus 88 sold some over-run of those OEM pens under its own brand.

Then, the Koloro model showed up in the foreign market in 2017. Its combination of an affordable price –in the range of EUR 100-- and an unusual filling system called the attention of many in the West. As I explained in the previous text, it is not that the Japanese eyedropper system was new at all, but its availability was very limited and expensive.

Nowadays, the Koloro is a family of pens that come in two nib sizes—size 5 and size 6, both by JoWo. The nibs are made of steel –no gold option--, and the feeds are made of plastic. The nib size conditions the overall dimensions of the pen. But in all cases, the filling system is the Japanese eyedropper.

Opus 88 Koloro. Made in the Republic of China. German nib (JoWo). Plastic feed.

Opus 88 could make these pens even more attractive by using in-house nibs or, at lest, nibs locally made. The implementation of ebonite feeds –and there are makers producing them-- would also increase the appeal of the pen. However, these two drawbacks are common to many pen companies.

The Koloro with an ebonite feed by Flexible Nib Factory.

These are the dimensions of the Opus 88 Koloro demonstrator of size 6:

Length closed: 148 mm
Length open: 136 mm
Length posted: this pen does not post.
Diamter: 16.4 nn
Weight: 30 g (inked)
Ink deposit: about 3 ml

In conclusion, this pen is an attractive product –well made, affordable, original— that fills a gap in the pen scene. And that is more than most other companies offer nowadays.

Parker 51 (Inky.Rock's) – De Atramentis Beethoven

Bruno Taut
Nakano, September 2019
etiquetas: soluciones técnicas, Eboya, Opus 88, mercado, JoWo, Taiwan

Japanese Eyedropper Today (I)

The so-called Japanese eyedropper system –inki-dome shiki (インキ止め式) in Japanese— was in fact invented by Onoto in the beginning of the 20th century. Those Onoto reached Japan imported by Maruzen and the system –an eyedropper with a shut-off valve— clicked among the locals. The final result was that this system was copied and reproduced by most Japanese pen makers along its history up to today.

An Onoto with the shut-off valve system. Not yet a Japanese eyedropper, I guess.

A Japanese Swan (Nobuo Ito's Swan) with the Japanese eyedropper system.

The inki-dome, however, fell out of favor by the late 1950s when Platinum introduced the ink cartridge and most other makers followed the example. Only minor makers –I am thinking of Sakai Eisuke's operations— kept the system alive till the 1980s.

A Sakai Eisuke's pen made in collaboration with Kabutogi Ginjiro (::1::). Possibly from the 1960s.

In 1985, Pilot commissioned lathe master Sakai the creation of a prototype based on the style of the Pilot pens from the early 1930s, The result was what later became the Pilot (and Namiki) size 50 Urushi, and it implements the Japanese eyedropper system.

The Pilot Urushi in size 50--a modern Japanese eyedropper. This pen is incorrectly named by many as Namiki Emperor, but the Emperor model is decorated with maki-e techniques according to the Namiki catalog.

But who else followed? Not much.

Eboya used the system for some years (::2::, ::3::), but its production relied in the know-how of lathe master Kanesaki Noritoshi. Eboya's boss, Mr. Endo, has announced the new production of Eboya pens with this system, but there are no final dates for their release.

An old Eboya (2013) from the Kanesaki time. It implements the Japanese eyedropper system. At that time, the brand name was still Nebotek.

More recently, as of 2018, the sort-lived Iwase Seisakusho also marketed some pens with the Japanese eyedropper system. These were either old incomplete pen bodies by Ishi Shoten (owner of the brand Yotsubishi) or new pen bodies made by lathe master Momose. But Iwase Seisakusho had a very brief life and very few units of it made to the market.

An Iwase Seisakusho based on a body by Momose Yasuaki.

From California, Danitrio makes some models with Japanese eyedropper. These are usually expensive models with urushi or maki-e decoration.

Some Danitrio pens as exposed at Itoya Ginza (Tokyo) in 2010. Photo courtesy of Moskva.

Finally, a surprising actor is the Taiwanese brand Opus 88 (Jin Gi Industrial Co.). But these Japanese eyedroppers deserve a Chronicle on their own.

The Opus 88 Koloro. A surprising new actor in the Japanese eyedropper business.

Opus 88 Koloro – De Atramentis Beethoven

Bruno Taut
Nakano, September 12th 2019
etiquetas: soluciones técnicas, Pilot, Eboya, Danitrio, Iwase Seisakusho, Opus 88, mercado, Onoto, Japón, mercado, Kanesaki, Sakai Eisuke, Momose Yasuaki

The Kubo Singularity

The big three Japanese pen companies make their own nibs, and it seems very hard to get those nibs as spare parts or as third party nibs for other makers. However, there are cases of that:

Hakase uses Pilot and Sailor nibs with their own original imprint. Ohashido and Taccia do the same with Sailor nibs.

A Pilot nib labeled as Hakase.

The rest either use Pilot nibs without any modification –StyloArt Karuizawa— or use some of the traditional supplies of third party nibs: Bock for Eboya and Masahiro (although previously Masahiro implemented Pilot nibs); JoWo for Taccia (lower end pens) and Wajimaya Zen-ni.

A JoWo nib labeled as Taccia.

The newcomer Iwase Seisakusho aims at sourcing its nibs from old nibmeister Kubo Kohei for its original pens. However, this is still an uncertain operation whose continuity we can only speculate about. Not to mention that the old age of Kubo Kohei –pushing 90 years old-- might affect any plan for a long term supply of parts.

A music nib made by Kubo Kohei.

Nibmeister Kubo at work.

But the bottom line is that Kubo Kohei is the sole independent maker of nibs in Japan, and his production is small, slow and artisanal.

Is there room –and market— for another independent operation in Japan to supply nibs and feeds to small pen companies?

Iwase Seisakusho prototype with Henckel nib – Takeda Jimiku Hisoku

Bruno Taut
Chuo, February 12th 2019
Etiquetas: Pilot, plumín, mercado, Sailor, Eboya, Hakase, Ohashido, Iwase Seisakusho, Taccia, Bock, JoWo, Wajimaya, nibmeister Kubo Kohei

The Namiki Effect

Stylophiles are a special bunch. Driven by our anachronistic passion we often crave for certain features: gold nibs, self-filling mechanisms (as opposed to cartridges and converters), ebonite feeds, some specific materials like celluloid or ebonite,… And we demand those features for pens over certain price. Or, in other words, we might despise pens over certain price if they didn't offer some of them.

But the market might be telling us that we are mistaken. Just a quick look at today's catalogs shows how many luxury brands offer nothing but cartridge-converter pens with plastic feeds. Materials and gold nibs are less of a problem, though.

An expensive Pilot. Cartridge-converter and plastic feed.

Luxury pens of Platinum-Nakaya and Sailor are cartridge-converters. Pilot-Namiki does offer Japanese eyedroppers, but only for the biggest nib size. All the others, with nibs sizes 5, 10, and 20, are cartridge-converters despite how expensive they are.

An expensive Hakase.

Then, small makers like Eboya, Hakase, Ohashido, Stylo-Art Karuizawa, all focussed on higher-end pens only offer cartridge-converter pens. The only exception to this trend might be Masahiro and the newly-arrived Iwase Seisakusho.

Now, are these two brands –Masahiro and Iwase Seisakusho— on the right path or the success of all the other brands shows the opposite? How important are those details like ebonite feed and self-filling mechanisms in the final price –and in the final value-- of the pen?

A Masahiro pen. Expensive, but it implements an ebonite feed, a self-filling mechanism, an ebonite body, and a gold nib.

The market might be telling us that we stylophiles are still a minority in the business. Or it might only be that I am very mistaken about what we demand, and cartridge and converters and plastic feeds are perfectly all right even on very expensive pens.

Or it might be that we are very easy targets. After all, every pen has its charm, and all those cravings are not so important.

And that is the Namiki effect--expensive pens can be, in essence, very simple. Namiki has proven it through years in the market.

Iwase Seisakusho prototype – Takeda Jimuki Hisoku

Bruno Taut
Bunkyo, February 9th 2019
etiquetas: estilofilia, mercado, makie, Eboya, Hakase, StyloArt Karuizawa, Masahiro, Sailor, Ohashido, Iwase Seisakusho, Pilot, Platinum