Sendai, Japan

Tsuyoshi Masumoto

This inventor holds 41 USPTO granted patents, primarily in Magnetic Alloys. Top assignees: Yoshida Kogyo K.k., Research Development Corporation of Japan, Tsuyoshi Masumoto. Active years: 1981-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsuyoshi Masumoto. Retrieved from https://idiyas.com/inventor/tsuyoshi-masumoto-ncak0e60

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 = 3.9

ph-index = 12

Forward Citations = 485(Granted Patents)


Company Filing History:

goldMedal10 out of 1,145 
 
Yoshida Kogyo K.k.
 patents
silverMedal7 out of 256 
 
Research Development Corporation of Japan
 patents
bronzeMedal6 out of 8 
 
Tsuyoshi Masumoto
 patents
4. 4 out of 5,207 
 
Aisin Seiki Kabushiki Kaisha
 patents
5. 3 out of 4,048 
 
Alps Electric Co., Ltd.
 patents
6. 3 out of 4 
 
Shingijutsu Kaihatsu Jigyodan
 patents
7. 3 out of 163 
 
Tokin Corporation
 patents
8. 3 out of 1,409 
 
Ykk Corporation
 patents
9. 2 out of 24 
 
Gac International, Inc.
 patents
10. 2 out of 10,092 
 
Honda Giken Kogyo Kabushiki Kaisha
 patents
11. 2 out of 70 
 
Teikoku Piston Ring Co., Ltd.
 patents
12. 2 out of 5,505 
 
Yamaha Corporation
 patents
13. 1 out of 1 
 
Akihisa Noue
 patent
14. 1 out of 2,569 
 
Hoya Corporation
 patents
15. 1 out of 50 
 
Japan Metals & Chemicals Co., Ltd.
 patents
16. 1 out of 8,998 
 
Nikon Corporation
 patents
17. 1 out of 138 
 
Otsuka Kagaku Kabushiki Kaisha
 patents
18. 1 out of 44 
 
Research Development Corporation
 patents
19. 1 out of 4 
 
The Research Institute for Electric and Magnetic Materials
 patents
20. 1 out of 4 
 
Toyo Aluminum K.k.
 patents
21. 1 out of 285 
 
Toyo Soda Manufacturing Co., Ltd.
 patents
22. 1 out of 39,010 
 
Toyota Jidosha Kabushiki Kaisha
 patents
23. 1 out of 394 
 
Unitika Ltd.
 patents
24. 10 out of 834,601 
Other
 patents
where one patent can have more than one assignee

Years Active: 1981-2003

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Areas of Expertise:
Thin-Film Sensor
Aluminum Alloy
Magnetic Core
Orthodontic Appliance
Amorphous Alloy
Corrosion Resistance
Superconductive Material
Rare Earth Magnet
High Strength Alloys
Optical Recording Material
Additive Powders
Magnesium Alloy
41 patents (USPTO):Explore Patents

Title: Innovations by Tsuyoshi Masumoto: A Pioneer in Magnetic Field Sensors and Golf Equipment

Introduction: Tsuyoshi Masumoto is an accomplished inventor based in Sendai, Japan, with a remarkable portfolio of 41 patents. His work primarily focuses on advanced technologies, such as magnetic sensors and innovative sporting equipment. Through his inventions, Masumoto has made significant contributions to both the fields of electronics and sports.

Latest Patents: Among his notable achievements, Masumoto's recent patents demonstrate his ingenuity. One of his latest inventions is a thin-film magnetic field sensor, which features a bridge circuit that ensures precise measurements of magnetic fields. The sensor includes two arms created from giant-magneto-resistant thin-films and soft magnetic thin-films, capable of accurately detecting changes in electrical resistance, even in the presence of interference. Another patented invention by Masumoto is a golf club head made from an amorphous alloy, designed for enhanced performance. This club head combines high strength with low elastic modulus, providing players with superior control and power.

Career Highlights: Throughout his career, Tsuyoshi Masumoto has worked with esteemed companies, including Yoshida Kogyo Co., Ltd. His tenure at such organizations has enabled him to apply his innovative ideas and bring them to fruition. Masumoto's dedication to research and development has led to numerous advancements in both sensor technology and sporting goods.

Collaborations: Masumoto has collaborated with talented individuals in the field, including Akihisa Inoue and Katsumasa Odera. Their teamwork has proven to be fruitful, enhancing the scope of their research and the practical application of their inventions.

Conclusion: Tsuyoshi Masumoto stands as a testament to the power of innovation and creativity in science and technology. With 41 patents to his name, his contributions are significant in the areas of magnetic sensors and golf equipment. Masumoto continues to inspire aspiring inventors and engineers with his groundbreaking work and vision for the future.

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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