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Kabushiki Kaisha Pilot Corporation

USPTO Granted Patents = 174

CIPO Patents = 1

EPO Patents = 30

Trademarks = 26

Forward Citations = 1,935

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138 inventors (with patents filed for the assignee):

Akinori Ikeda (17 out of 18 patents)

Teruaki Fukasawa (9 out of 9 patents)

Naomi Matsumura (7 out of 8 patents)

4. Makoto Sakuno (7 out of 7 patents)

5. Morio Sato (6 out of 6 patents)

6. Yoshihiro Ito (6 out of 111 patents)

7. Genki Iwao (6 out of 6 patents)

8. Hisatoshi Hayakawa (5 out of 5 patents)

9. Takumi Kajiwara (5 out of 6 patents)

10. Takeshi Fujii (5 out of 5 patents)

11. Masahiko Ikeda (5 out of 7 patents)

12. Lode Soetewey (5 out of 7 patents)

13. Kazuhiko Sasaki (5 out of 5 patents)

14. Taro Tozuka (4 out of 4 patents)

15. Kouichi Takayama (4 out of 4 patents)

Core Competencies:

Thermochromic Composition

Writing Instrument

Aqueous Ink Composition

Ballpoint Pen

Mechanical Pencil

Photochromic Composition

Retractable Writing Tool

Oil-Based Ink Composition

Friction Body Unit

Reversibly Thermochromic Microcapsule

Ink Cartridge

Electrophotographic Toner

174 patents: Sort by Forward Citations

1. D1107792 - Writing instrument (2025-12-30),

2. 12460099 - Reversibly thermochromic composition, reversibly thermochromic microcapsule pigment encapsulating reversibly thermochromic composition, and writing instrument using reversibly thermochromic microcapsule pigment (2025-11-04),

3. 12421411 - Aqueous ink composition for reversibly thermochromic writing instrument, and refill and aqueous ballpoint pen incorporating aqueous ink composition for reversibly thermochromic writing instrument (2025-09-23),

4. 12275269 - Thermochromic writing instrument (2025-04-14),

5. 12220937 - Writing ball, method for manufacturing writing ball, and ballpoint pen with writing ball (2025-02-11),

6. 12179510 - Friction body unit and thermochromic writing instrument (2024-12-31),

7. 12139623 - Oil-based ink composition for writing board and marking pen incorporating same (2024-11-12),

8. 12123107 - Reversibly thermochromic composite fiber (2024-10-22),

9. 12098289 - Photochromic composition (2024-09-24),

10. 12097723 - Retractable writing implement (2024-09-24),

11. 12083782 - Discoloring body having glossiness (2024-09-10),

12. 12049099 - Projectable and retractable writing tool (2024-07-30),

13. 11993099 - Ballpoint pen (2024-05-28),

14. 11993097 - Mechanical pencil (2024-05-28),

15. 11975560 - Ballpoint pen tip, ballpoint pen refill, and ballpoint pen (2024-05-07),

Pilot Corporation, also known as Kabushiki Kaisha Pilot Corporation, is a Japanese manufacturer of writing instruments, stationery and office supplies. With a history dating back to 1918, Pilot is renowned for its innovation and high-quality products. Their extensive range includes fountain pens, rollerball pens, ballpoint pens, mechanical pencils, markers, and more. Pilot Corporation is committed to providing exceptional writing experiences and has earned a strong reputation worldwide.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

174 Patents

#344 in Tokyo

#755 in Japan

#4,646 in the World

Kabushiki Kaisha Pilot Corporation

Forward Citations = 1,935

138 inventors:

Akinori Ikeda (17 out of 18 patents)

Teruaki Fukasawa (9 out of 9 patents)

Naomi Matsumura (7 out of 8 patents)

4. Makoto Sakuno (7 out of 7 patents)

5. Morio Sato (6 out of 6 patents)

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