Fujisawa, Japan

Kazuo Yamamoto

This inventor holds 36 USPTO granted patents, primarily in Seat Belt Technology. Top assignees: Nippon Seiko Kabushiki Kaisha, Nsk-Warner K.k., Nsk Corporation. Active years: 1980-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuo Yamamoto. Retrieved from https://idiyas.com/inventor/kazuo-yamamoto-a2gwvmtw

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


% Patents Active = 100.0

Average Co-Inventor Count = 1.7

ph-index = 9

Forward Citations = 331(Granted Patents)


Location History:

  • Sagamihara, JP (1980 - 1991)
  • Yokohama, JP (1990 - 1997)
  • Tama, JP (1997 - 1998)
  • Kanagawa, JP (1990 - 2002)
  • Fujisawa, JP (1987 - 2003)

Company Filing History:


Years Active: 1980-2003

Loading Chart...
Areas of Expertise:
Seat Belt Device
Passive Safety System
Retractor Mechanism
Buckle Assembly
Anchor Adjustment
Vehicle Safety
Acceleration Sensor
Locking Device
Webbing Support
Silent Operation
Automatic Locking
Safety Belt Assembly
36 patents (USPTO):Explore Patents

Title: Kazuo Yamamoto: Innovator in Seat Belt Technology

Introduction: Kazuo Yamamoto is a distinguished inventor based in Fujisawa, Japan, with an impressive portfolio of 36 patents to his name. His contributions to the field of automotive safety, particularly in seat belt technology, have significantly influenced the industry.

Latest Patents: Among his latest innovations are two notable patents focusing on seat belt devices. The first, a seat belt device, features a webbing system designed to restrain occupants securely in their seats. This invention includes a unique webbing guide that comes into slide contact with the webbing, consisting of an insert fitting, a molded covering resin, and a metal member that enhances sliding performance for optimal safety.

The second patent addresses a seat belt assembly and a method for producing a through anchor. This design incorporates a webbing sliding contact surface, which is created by bending the lower edge of an opening in a metal insert. The assembly is further enhanced by applying a coating resin over the metal parts, ensuring continued smooth sliding contact between the webbing guide and the webbing while maintaining a straightforward construction.

Career Highlights: Throughout his career, Kazuo Yamamoto has been associated with prominent companies, including Nippon Seiko Kabushiki Kaisha and NSK-Warner K.K. His work has been pivotal in advancing safety features in vehicles, reflecting his commitment to innovation and quality.

Collaborations: Yamamoto has collaborated with esteemed colleagues, such as Osamu Kawai and Katsuyasu Ono. Their collective efforts have driven forward-thinking solutions in automotive safety, establishing a collaborative environment that fosters groundbreaking developments.

Conclusion: Kazuo Yamamoto's contributions to the automotive industry through his innovative seat belt technologies and collaborations underline his status as a leading inventor. His patents not only enhance safety but also showcase the importance of continued innovation in engineering. As he continues to push the boundaries of safety technology, his impact on the industry is undeniable.

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]
Loading…