Hirato Shimasaki

This inventor holds 10 USPTO granted patents. Top assignees: Bridgestone Sports Co., Ltd., Bridgestone Tire Company Limited. Active years: 1984-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirato Shimasaki. Retrieved from https://idiyas.com/inventor/hirato-shimasaki

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

USPTO Granted Patents = 10

% Patents Active = 90.0

Average Co-Inventor Count = 3.3

ph-index = 9

Forward Citations = 952(Granted Patents)

Location History:

Saitama-ken, JP (1997 - 1998)
Tokyo, JP (1984 - 2003)

Company Filing History:

9 out of 1,273

Bridgestone Sports Co., Ltd.

patents

1 out of 504

Bridgestone Tire Company Limited

patents

Years Active: 1984-2003

Loading Chart...

10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6572491 - Golf club head (2003-06-03),

2. 6340337 - Golf club head (2002-01-22),

3. 6254494 - Golf club head (2001-07-03),

4. 5823887 - Iron golf club set (1998-10-20),

5. 5711722 - Golf club head (1998-01-27),

6. 5681228 - Golf club head (1997-10-28),

7. 5658208 - Golf club head (1997-08-19),

8. 5603667 - Golf club head (1997-02-18),

9. 5386996 - Golf club head (1995-02-07),

10. 4442791 - Adhesive compound coating apparatus (1984-04-17),

Title: Hirato Shimasaki: Innovator in Golf Technology

Introduction

Hirato Shimasaki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of golf technology, holding a total of 10 patents. His innovative designs have enhanced the performance and functionality of golf equipment.

Latest Patents

One of his latest patents is for a golf club head featuring a hollow construction. This design includes a bar-like gravity adjusting piece that extends longitudinally from a toe towards a heel of the head. The piece is secured directly on the inner surface of a sole portion, positioned nearer to the front face. Additionally, the forward half area of the sole portion has a thickness that is two or more times greater than the average thickness of the rearward half area. This innovative approach aims to improve the overall performance of the golf club.

Career Highlights

Hirato Shimasaki has worked with notable companies in the sports industry, including Bridgestone Sports Co., Ltd. and Bridgestone Tire Company Limited. His experience in these organizations has allowed him to develop and refine his innovative ideas in golf technology.

Collaborations

Throughout his career, Shimasaki has collaborated with talented individuals such as Daisuke Mikame and Hiroshi Ezaki. These partnerships have contributed to the advancement of his inventions and the overall improvement of golf equipment.

Conclusion

Hirato Shimasaki is a key figure in the innovation of golf technology, with a strong portfolio of patents and collaborations. His work continues to influence the industry and enhance the experience of golfers worldwide.

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]