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For the Inventor, By the Inventor

Tokyo, Japan

Topre Corporation


USPTO Granted Patents = 35

% Expired Patents = 2.9


Trademarks = 5

Forward Citations = 282

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37 inventors (with patents filed for the assignee):

goldMedal Hikoshiro Suzuki (4 out of 4 patents)

silverMedal Keiji Kamata (4 out of 4 patents)

bronzeMedal Hiroshi Hasegawa (3 out of 114 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:

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),
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 based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

Topre Corporation
35 Patents

#993 in Tokyo

#2,128 in Japan

#19,148 in the World

Tokyo, JP
Tokyo, Japan

Topre Corporation

Forward Citations = 282

37 inventors:

goldMedal Hikoshiro Suzuki (4 out of 4 patents)

silverMedal Keiji Kamata (4 out of 4 patents)

bronzeMedal Hiroshi Hasegawa (3 out of 114 patents)

4.  Yutaka Fukushi (3 out of 3 patents)

5.  Yuichi Toyosawa (2 out of 2 patents)

Please report any incorrect information to [email protected]
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