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Kabushiki Kaisha Pilot Corporation

USPTO Granted Patents = 181

% Expired Patents = 6.1

CIPO Patents = 1

EPO Patents = 32

Trademarks = 23

Forward Citations = 1,968

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144 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. Lode Soetewey (6 out of 8 patents)

7. Yoshihiro Ito (6 out of 112 patents)

8. Genki Iwao (6 out of 6 patents)

9. Hisatoshi Hayakawa (5 out of 5 patents)

10. Takumi Kajiwara (5 out of 6 patents)

11. Takeshi Fujii (5 out of 5 patents)

12. Masahiko Ikeda (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:

Ballpoint Pen

Thermochromic Composition

Ink Composition

Mechanical Pencil

Fountain Pen

Writing Tool

Photochromic Composition

Retractable Writing Implement

Oil-Based Ink

Water-Based Ink

Writing Instrument

Marking Pen

181 patents: Sort by Forward Citations

1. 12746776 - Writing implement (2026-09-29),

2. 12728622 - Method for producing discoloring body (2026-09-08),

3. D1136027 - Writing instrument (2026-07-21),

4. D1136026 - Ballpoint pen (2026-07-21),

5. 12654483 - Oil-based ballpoint pen (2026-06-16),

6. 12600875 - Oil-based ink composition for ballpoint pens and ballpoint pen employing the same (2026-04-14),

7. 12595378 - Water-soluble sheet-like coloring material, water-soluble sheet-like coloring material set, and paint set (2026-04-07),

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

9. 12460099 - Reversibly thermochromic composition, reversibly thermochromic microcapsule pigment encapsulating reversibly thermochromic composition, and writing instrument using reversibly thermochromic microcapsule pigment (2025-11-04),

10. 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),

11. 12275269 - Thermochromic writing instrument (2025-04-14),

12. 12220937 - Writing ball, method for manufacturing writing ball, and ballpoint pen with writing ball (2025-02-11),

13. 12179510 - Friction body unit and thermochromic writing instrument (2024-12-31),

14. 12139623 - Oil-based ink composition for writing board and marking pen incorporating same (2024-11-12),

15. 12123107 - Reversibly thermochromic composite fiber (2024-10-22),

Company Overview

Kabushiki Kaisha Pilot Corporation, headquartered in Tokyo, Japan, specializes in the development and manufacturing of writing instruments. The company is renowned for its innovative products, including ballpoint pens, mechanical pencils, and fountain pens, which incorporate advanced technologies such as thermochromic and photochromic compositions. Pilot is committed to enhancing the writing experience through continuous research in ink composition and retractable writing implements, positioning itself as a leader in the global writing tool market.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

181 Patents

#384 in Tokyo

#757 in Japan

#4,611 in the World

Kabushiki Kaisha Pilot Corporation

Forward Citations = 1,968

144 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kabushiki Kaisha Pilot Corporation. Retrieved from https://idiyas.com/company/kabushiki-kaisha-pilot

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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