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Topre Corporation

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USPTO Granted Patents = 35

% Expired Patents = 2.9

EPO Patents = 3

Trademarks = 5

Forward Citations = 282

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37 inventors (with patents filed for the assignee):

Hikoshiro Suzuki (4 out of 4 patents)

Keiji Kamata (4 out of 4 patents)

Hiroshi Hasegawa (3 out of 115 patents)

4. Yutaka Fukushi (3 out of 3 patents)

5. Yuichi Toyosawa (2 out of 2 patents)

6. Takatoshi Sato (2 out of 2 patents)

7. Naoya Yuasa (2 out of 2 patents)

8. Masanori Kobayashi (2 out of 68 patents)

9. Mikio Takada (2 out of 4 patents)

10. Katsumi Ooshima (2 out of 2 patents)

11. Yoshihiko Hagiwara (2 out of 2 patents)

12. Takao Nagashima (2 out of 2 patents)

13. Takao Takahashi (2 out of 3 patents)

14. Seiji Hiraki (2 out of 2 patents)

15. Hiroaki Takishima (1 out of 1 patent)

Core Competencies:

Keyboard

Key Switch

Capacitance Switch

Hot Press Product

Input Device

Press Forming Die

Self-Piercing Clinch Nut

Air Conditioning

Positioning Device

Pedal Effort-Reduction

Square Pipe Manufacturing

Constant Airflow Control

35 patents: Sort by Forward Citations

1. 12673357 - Method of manufacturing vehicle pillar and press forming die (2026-07-07),

2. 12632126 - Input device and control method of input device (2026-05-19),

3. 12580567 - Key switch device and key switch control method (2026-03-17),

4. 11951526 - Press-formed product manufacturing method and forming die (2024-04-09),

5. 11621710 - Capacitance switch (2023-04-04),

6. 11471928 - Positioning device for hot stamping (2022-10-18),

7. 11097332 - Method for manufacturing hot pressed product (2021-08-24),

8. 10684700 - Keyboard threshold change apparatus and keyboard (2020-06-16),

9. 10671183 - Keyboard device (2020-06-02),

10. 10325734 - Keyboard switch (2019-06-18),

11. 10265753 - Hot press product (2019-04-23),

12. 10217578 - Keyboard (2019-02-26),

13. 9979392 - Capacitive keyboard (2018-05-22),

14. 9409221 - Method of hot-press forming enabling hardness control (2016-08-09),

15. 9328509 - Square pipe, frame structure, square pipe manufacturing method, and square pipe manufacturing apparatus (2016-05-03),

Company Overview

Topre Corporation, headquartered in Tokyo, specializes in the development and manufacturing of automotive components and industrial products. The company is recognized for its innovative technologies in areas such as automotive engineering, particularly in the production of high-quality stamping parts and electronic components. Topre's commitment to research and development drives advancements in lightweight materials and efficient manufacturing processes, positioning it as a key player in the automotive supply chain and related industries.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

35 Patents

#996 in Tokyo

#2,133 in Japan

#19,187 in the World

Topre Corporation

Forward Citations = 282

37 inventors:

Hikoshiro Suzuki (4 out of 4 patents)

Keiji Kamata (4 out of 4 patents)

Hiroshi Hasegawa (3 out of 115 patents)

4. Yutaka Fukushi (3 out of 3 patents)

5. Yuichi Toyosawa (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Topre Corporation. Retrieved from https://idiyas.com/company/topre

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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