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For the Inventor, By the Inventor

Kanagawa, Japan

Pilot Precision Kabushiki Kaisha

USPTO Granted Patents = 16

% Expired Patents = 6.3

Forward Citations = 292

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8 inventors (with patents filed for the assignee):

goldMedal Toshimasa Nagaoka (6 out of 6 patents)

silverMedal Hiroyuki Watanabe (3 out of 3 patents)

bronzeMedal Kazuhiko Ono (3 out of 4 patents)

4.  Kazuhiko Ono (2 out of 2 patents)

5.  Yo Sumita (2 out of 2 patents)

6.  Nobuhiro Kourushi (2 out of 2 patents)

7.  Kiyoshi Umeda (1 out of 1 patent)

8.  Shinya Kamei (1 out of 1 patent)


16 patents:

1. 6830404 - Input pen (2004-12-14),
2. 6707451 - Input pen (2004-03-16),
3. D462356 - Input pen with light (2002-09-04),
4. D456842 - Input pen with ball-point pen (2002-05-08),
5. D456411 - Input pen (2002-05-01),
6. 6361232 - Input pen (2002-03-26),
7. D442632 - Combined input pen with ball-point pen (2001-05-23),
8. 5895895 - Input pen (1999-04-20),
9. D389131 - Input pen (1998-01-13),
10. 5564850 - Input pen with attached writing implement (1996-10-15),
11. D352524 - Case for lead (1994-11-15),
12. 5354141 - Mechanical pencil with shaking type lead-feeding mechanism (1994-10-11),
13. 5171097 - Mechanical pencil with lead-feeding device operable by forward shake (1992-12-15),
14. 4840508 - Mechanical pencil capable of automatically propelling successive lengths (1989-06-20),
15. 4452544 - Mechanical pencil with automatic lead feed (1984-06-05),
Company Overview
Pilot Precision Kabushiki Kaisha, based in Kanagawa, Japan, specializes in the development and manufacturing of precision instruments and components. The company focuses on advanced technologies in areas such as optical systems, measurement devices, and automation solutions. With a commitment to innovation, Pilot Precision plays a significant role in enhancing product performance across various industries, including electronics and manufacturing. Its expertise in precision engineering positions it as a key player in the global market.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

16 Patents

#112 in Kanagawa

#3,343 in Japan

#37,868 in the World

Kanagawa, JP
Kanagawa, Japan

Pilot Precision Kabushiki Kaisha

Forward Citations = 292

8 inventors:

goldMedal Toshimasa Nagaoka (6 out of 6 patents)

silverMedal Hiroyuki Watanabe (3 out of 3 patents)

bronzeMedal Kazuhiko Ono (3 out of 4 patents)

4.  Kazuhiko Ono (2 out of 2 patents)

5.  Yo Sumita (2 out of 2 patents)

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

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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