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For the Inventor, By the Inventor

Kobe, Japan

Sri Sports Limited

Calculating rank
USPTO Granted Patents = 628

% Expired Patents = 54.8



Trademarks = 14

Forward Citations = 14,814

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177 inventors (with patents filed for the assignee):

goldMedal Keiji Ohama (54 out of 92 patents)

silverMedal Takahiro Sajima (47 out of 119 patents)

bronzeMedal Nathaniel J Radcliffe (47 out of 79 patents)

4.  Kazuhiko Isogawa (41 out of 78 patents)

5.  John J Rae (34 out of 65 patents)

6.  Sharon J Park (32 out of 80 patents)

7.  Masatoshi Yokota (30 out of 72 patents)

8.  Toshiyuki Tarao (28 out of 103 patents)

9.  Robert J Horacek (28 out of 48 patents)

10.  Michael J Wallans (28 out of 78 patents)

11.  Seiichiro Endo (27 out of 65 patents)

12.  Takashi Sasaki (25 out of 45 patents)

13.  Masahide Onuki (24 out of 79 patents)

14.  Akio Yamamoto (24 out of 47 patents)

15.  Koichi Fujisawa (24 out of 32 patents)


Core Competencies:
Golf Club Head
Golf Ball
Weight Member
Shaft Fitting System
Golf Club Cover
Golf Product Reconfiguration
Putter-Type Golf Club
Iron Type Golf Club Head
Surface Treatment
Dimple Pattern Design
Golf Swing Analysis
Golf Ball Resin Composition

628 patents:

1. 10456641 - Weight member for a golf club head (2019-10-29),
2. 10434379 - Golf club head (2019-10-08),
3. 10166448 - Golf club cover having a pull member (2019-01-01),
4. 10080940 - Shaft fitting system (2018-09-25),
5. 10052537 - Weight member for a golf club head (2018-08-21),
6. 10010769 - Golf club head (2018-07-03),
7. 10004956 - Method, apparatus, and system for golf product reconfiguration (2018-06-26),
8. 9993703 - Method, apparatus, and system for golf product reconfiguration and selection (2018-06-12),
9. 9975014 - Golf club head (2018-05-22),
10. 9931547 - Golf club head with a body-conforming weight member (2018-04-03),
11. 9889350 - Golf club head (2018-02-13),
12. 9884232 - Method, apparatus, and system for golf product reconfiguration (2018-02-06),
13. 9737769 - Golf club (2017-08-22),
14. 9731177 - Golf club head (2017-08-15),
15. 9724576 - Golf club head (2017-08-08),
Company Overview
Sri Sports Limited, headquartered in Kobe, Japan, specializes in the development and manufacturing of high-quality golf equipment. The company focuses on innovative technologies related to golf club heads, golf balls, and shaft fitting systems, catering to both amateur and professional golfers. With a commitment to enhancing performance, Sri Sports also explores advancements in putter-type and iron-type golf club heads, as well as golf product reconfiguration and accessories like golf club covers. Their expertise positions them as a notable player in the golf equipment industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

628 Patents

#7 in Kobe

#322 in Japan

#1,578 in the World

Kobe, JP
Kobe, Japan

Sri Sports Limited

Forward Citations = 14,814

177 inventors:

goldMedal Keiji Ohama (54 out of 92 patents)

silverMedal Takahiro Sajima (47 out of 119 patents)

bronzeMedal Nathaniel J Radcliffe (47 out of 79 patents)

4.  Kazuhiko Isogawa (41 out of 78 patents)

5.  John J Rae (34 out of 65 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sri Sports Limited. Retrieved from https://idiyas.com/company/sri-sports

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

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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