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For the Inventor, By the Inventor

Kanagawa, Japan

Alpha Corporation


USPTO Granted Patents = 129



Trademarks = 6

Forward Citations = 804

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90 inventors (with patents filed for the assignee):

goldMedal Takahiro Okada (18 out of 78 patents)

silverMedal Koichiro Sugimoto (12 out of 12 patents)

bronzeMedal Takao Toyama (12 out of 12 patents)

4.  Shinji Ichikawa (9 out of 9 patents)

5.  Mitsuo Nishizuka (8 out of 8 patents)

6.  Kenjirou Hayashi (7 out of 10 patents)

7.  Ryuichi Yoshida (7 out of 8 patents)

8.  Takashi Ono (7 out of 15 patents)

9.  Ryuji Minemura (6 out of 6 patents)

10.  Hiroaki Sakakura (5 out of 5 patents)

11.  Shuichi Kudoh (5 out of 5 patents)

12.  Tetsuyuki Tsukano (5 out of 9 patents)

13.  Lan Kin (4 out of 4 patents)

14.  Kenji Mizushima (4 out of 4 patents)

15.  Shunichi Osada (4 out of 4 patents)


Core Competencies:
Vehicle Door Control
Handle Device
Door Opening Device
Steering Lock Device
Vehicle Monitoring
Rotary Switch
Lid Device
Photosensor Unit
Vehicular Reflective Optical Sensor
Cable Connection Structure
Inside Handle Device
Outside Handle Device

129 patents:

1. 12509927 - Door handle device for vehicle (2025-12-30),
2. 12473759 - Handle device for vehicle (2025-11-18),
3. 12404705 - Vehicle door control device and vehicle door handle device (2025-09-02),
4. 12385295 - Handle device for vehicle (2025-08-12),
5. 12331568 - Vehicle door handle (2025-06-17),
6. 12326020 - Inside handle device (2025-06-10),
7. 12291902 - Door opening/closing device and operation detection device, and door opening/closing method and operation detection method (2025-05-06),
8. 12246592 - Lid device (2025-03-11),
9. 12241290 - Handle device for vehicle (2025-03-04),
10. 12188271 - Door holder assembly (2025-01-07),
11. 12006742 - Door handle device for vehicle (2024-06-11),
12. 11939799 - Door handle device for vehicle (2024-03-26),
13. 11926196 - Handle device for vehicle (2024-03-12),
14. 11879278 - Vehicle door control device (2024-01-23),
15. 11879277 - Inside handle device (2024-01-23),
Alpha Corporation is a leading global technology company specializing in innovative solutions for various industries. Our team of experts is dedicated to delivering cutting-edge products and services that help our clients achieve their business objectives. With a strong focus on research and development, we constantly strive to stay ahead of the competition by incorporating the latest advancements in technology. Visit our website to learn more about our wide range of offerings and how we can transform your business.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

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129 Patents

#26 in Kanagawa

#928 in Japan

#6,044 in the World

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Kanagawa, Japan

Alpha Corporation

Forward Citations = 804

90 inventors:

goldMedal Takahiro Okada (18 out of 78 patents)

silverMedal Koichiro Sugimoto (12 out of 12 patents)

bronzeMedal Takao Toyama (12 out of 12 patents)

4.  Shinji Ichikawa (9 out of 9 patents)

5.  Mitsuo Nishizuka (8 out of 8 patents)

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