Shiga, Japan

Tetsuya Hamaue

This inventor holds 24 USPTO granted patents, primarily in Seat Belt Technology. Top assignee: Takata Corporation. Active years: 1991-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuya Hamaue. Retrieved from https://idiyas.com/inventor/tetsuya-hamaue

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 1.5

ph-index = 9

Forward Citations = 194(Granted Patents)


Location History:

  • Tokyo, JP (1999 - 2003)
  • Shiga, JP (1991 - 2004)
  • Hikone, JP (2006)

Company Filing History:


Years Active: 1991-2006

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Areas of Expertise:
Seat Belt Retractor
Pretensioner
Automatic Buckling Device
Acceleration Sensor
Safety Device
Vehicle Seat Belt
Spooling Device
Tensionless Function
Restraint Limit Warning
Safety Mechanism
Vehicle Restraint
Sensor Technology
24 patents (USPTO):Explore Patents

Title: Innovations in Automotive Safety: Tetsuya Hamaue and His Patents

Introduction: Tetsuya Hamaue, a notable inventor based in Shiga, Japan, has made significant strides in the field of automotive safety technology. With an impressive portfolio of 24 patents, Hamaue has been instrumental in developing innovative solutions that enhance the functionality and safety of seat belt mechanisms. His work is essential in improving passenger protection during vehicular accidents.

Latest Patents: Among Hamaue's latest contributions are two remarkable patents focused on seat belt retractors and devices. The first patent introduces a sophisticated **seat belt retractor** that incorporates a spool designed for winding a seat belt. This retractor features a locking mechanism that becomes engaged during an emergency, preventing the spool from unwinding. Additionally, it includes an energy-absorbing mechanism that mitigates impact energy experienced by occupants, thereby providing enhanced safety. This mechanism contains an energy-absorbing member with varying width and a deforming device, ensuring optimal functionality during a collision.

The second patent highlights a **seat belt retractor** featuring a ball-type pretensioner, which enhances the reliability of the pretensioning process. The design includes a securely retained pipe that houses the balls, along with a guide block to ensure high rigidity at the connection points. By improving the structural integrity of the components, Hamaue's design significantly minimizes the risk of deformation during critical operation, ensuring the safety of vehicle occupants.

Career Highlights: Tetsuya Hamaue's career is marked by his role at Takata Corporation, a leader in automotive safety systems. His innovative spirit and dedication to research and development have allowed him to contribute greatly to the advancement of safety features in vehicles. Under his direction and creativity, numerous patents have been filed, emphasizing the importance of continuous improvement in automotive safety technology.

Collaborations: Throughout his journey, Hamaue has worked alongside talented colleagues, including Muneo Nishizawa and Kiyotaka Miyauchi. Their collaborative efforts have further enriched the quality of their innovations, creating a synergy that fosters groundbreaking developments in safety mechanisms for the automotive industry.

Conclusion: Tetsuya Hamaue's contributions to automotive safety through his patents serve as a testament to his ingenuity and commitment to enhancing passenger protection. His work at Takata Corporation, combined with the expertise of his collaborators, continues to pave the way for future innovations in the field. As automotive technology evolves, the impact of Hamaue's inventions will undoubtedly resonate, reflecting the crucial role of inventors in ensuring the safety of road users.

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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