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For the Inventor, By the Inventor

Aichi, Japan

Tatsuo Yamashita

This inventor holds 8 USPTO granted patents. Top assignee: Kabushiki Kaisha Tokai Rika Denki Seisakusho. Active years: 1989-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuo Yamashita. Retrieved from https://idiyas.com/inventor/tatsuo-yamashita

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

Calculating rank
USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 5

Forward Citations = 42(Granted Patents)


Location History:

  • Niwa, JP (1990)
  • Aichi, JP (1989 - 1991)
  • Aichi-ken, JP (2001 - 2002)

Company Filing History:

goldMedal8 out of 2,031 
 
Kabushiki Kaisha Tokai Rika Denki Seisakusho
 patents

Years Active: 1989-2002

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8 patents (USPTO):Explore Patents
1. 6470746 - Acceleration sensor (2002-10-29),
2. 6318662 - Webbing winding device (2001-11-20),
3. 4991873 - Slider stopping mechanism for automatic seatbelt system (1991-02-12),
4. 4946197 - Automatic seat belt system (1990-08-07),
5. 4919451 - Automatic seat belt device (1990-04-24),
6. 4878692 - Guide rail supporting structure (1989-11-07),
7. 4846497 - Automatic seatbelt system for vehicle (1989-07-11),
8. 4840401 - Guide rail cover (1989-06-20),

Title: Innovations of Tatsuo Yamashita

Introduction

Tatsuo Yamashita is a prominent inventor based in Aichi-ken, Japan. He has made significant contributions to the field of technology, particularly in the development of innovative devices. With a total of 8 patents to his name, Yamashita's work reflects a commitment to enhancing safety and efficiency in various applications.

Latest Patents

Yamashita's latest patents include an acceleration sensor and a webbing winding device. The acceleration sensor is designed to reliably detect acceleration while minimizing unnecessary movement of components when the inclination of a member is outside a specified range. This innovation enhances space efficiency within the device. The webbing winding device features a pre-tensioner that secures a passenger during emergency deceleration in vehicles. It utilizes a gear train mechanism to retract the webbing effectively, ensuring passenger safety.

Career Highlights

Yamashita is associated with Kabushiki Kaisha Tokai Rika Denki Seisakusho, a company known for its advancements in technology. His work has been instrumental in developing safety mechanisms that are crucial in automotive applications. His inventions demonstrate a blend of creativity and technical expertise, contributing to the safety and comfort of vehicle occupants.

Collaborations

Yamashita has collaborated with notable coworkers, including Kenji Matsui and Kazuyoshi Ishiguro. Their combined efforts have led to the successful development of innovative technologies that address real-world challenges.

Conclusion

Tatsuo Yamashita's contributions to innovation and technology are noteworthy. His patents reflect a dedication to improving safety and efficiency in various applications. Through his work, he continues to influence the field of technology positively.

Profile summary based on public USPTO records.
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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