Akira Sorimachi

This inventor holds 16 USPTO granted patents. Top assignees: Katoh Electrical Machinery Company, Ltd., Ratoh Electrical Machinery Co., Ltd.. Active years: 1980-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Akira Sorimachi. Retrieved from https://idiyas.com/inventor/akira-sorimachi

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

USPTO Granted Patents = 16

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 8

Forward Citations = 187(Granted Patents)

Location History:

Yokohama, JP (1980 - 2000)
Kanagawa, JP (1997 - 2001)

Company Filing History:

15 out of 87

Katoh Electrical Machinery Company, Ltd.

patents

1 out of 1

Ratoh Electrical Machinery Co., Ltd.

patent

Years Active: 1980-2001

Loading Chart...

16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6178597 - Operative hinge for opening/closing body (2001-01-30),

2. 6070298 - Composite torque hinges (2000-06-06),

3. 6000069 - Compound torque hinge (1999-12-14),

4. 5996132 - Compound torque hinge (1999-12-07),

5. 5991936 - Opening and closing device of Western style toilet seat and seat cover (1999-11-30),

6. 5946740 - Holder for opening/closing apparatus for seats and lids of (1999-09-07),

7. D403058 - Opening and closing device for the seat or the seat lid of a toilet bowl (1998-12-22),

8. D401681 - Holder of opening and closing device for the seat or the seat lid of a (1998-11-24),

9. D399295 - Opening and closing device for the seat or the seat lid of a toilet bowl (1998-10-06),

10. 5768718 - Control device for controlling the seat or the seat lid of a toilet bowl (1998-06-23),

11. 5724683 - Hinge mechanism for supporting the seat or the seat lid of a toilet bowl (1998-03-10),

12. 5664286 - Hinge mechanism for supporting the seat or the seat lid of a toilet bowl (1997-09-09),

13. D303077 - Hinge (1989-08-29),

14. 4424606 - Hinge for opening and closing a dust cover (1984-01-10),

15. 4355887 - Document hold-down cover arrangement for a copy machine (1982-10-26),

Title: **The Innovative Mind of Akira Sorimachi**

Introduction

Akira Sorimachi, an esteemed inventor based in Kanagawa, Japan, has made significant contributions to the field of mechanical design, particularly in the development of innovative hinge mechanisms. With a portfolio boasting 16 patents, Sorimachi's inventions reflect a commitment to enhancing usability in everyday objects.

Latest Patents

Among his latest patents is the "Operative Hinge for Opening/Closing Body." This invention introduces a sophisticated hinge that includes a hinge case designed for toilet bowls, featuring a rotatable shaft and a stationary cam. With the addition of a damping mechanism involving a rubber ring and viscous oil, this design ensures smooth operation and control over the opening and closing motions. Another noteworthy patent is the "Composite Torque Hinges," which allows for small-sized hinges to generate substantial rotational torque. This design enables seamless alignment and operation, particularly for components such as lavatory seats and lids.

Career Highlights

Throughout his career, Sorimachi has been associated with reputable companies like Katoh Electrical Machinery Company, Ltd. and Ratoh Electrical Machinery Co., Ltd. His work in these organizations has allowed him to refine his skills in mechanical engineering and innovate in hinge technology that is practical and functional.

Collaborations

Collaboration has been a central element in Sorimachi's journey as an inventor. He has worked alongside talented individuals, including Naokazu Suzuki and Isao Nagashima, who have contributed valuable insights and support in the development of his inventions. Such teamwork has been instrumental in bringing his innovative ideas to fruition.

Conclusion

Akira Sorimachi continues to be a prominent figure in the realm of engineering and innovation, with his patents serving as a testament to his ingenuity and dedication. His work not only exemplifies cutting-edge design but also emphasizes functionality, ensuring that his inventions enhance everyday life.

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]