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Somar Corporation

USPTO Granted Patents = 210

EPO Patents = 2

Trademarks = 9

Forward Citations = 1,363

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175 inventors (with patents filed for the assignee):

Fumio Hamamura (26 out of 26 patents)

Shigeo Sumi (22 out of 22 patents)

Mitsuhiro Seki (18 out of 20 patents)

4. Sigeo Sumi (14 out of 14 patents)

5. Yoji Washizaki (14 out of 14 patents)

6. Hiroshi Taguchi (13 out of 22 patents)

7. Kunimitsu Matsuzaki (13 out of 13 patents)

8. Katsuji Kitagawa (12 out of 12 patents)

9. Yoshihiro Motoki (10 out of 10 patents)

10. Kazuya Ono (9 out of 41 patents)

11. Ichiro Akutagawa (9 out of 9 patents)

12. Hiroshi Maruyama (8 out of 8 patents)

13. Naohiko Kiryu (8 out of 8 patents)

14. Ichio Fukuda (8 out of 8 patents)

15. Akira Igarashi (8 out of 18 patents)

Core Competencies:

Magnetic Viscous Fluid

UV Curable Composition

Thermosetting Powder Coating

Cell Culture Method

Polyimide Copolymer

Adhesive Sheet

Ink-Jet Recording Film

Antimicrobial Aqueous Dispersion

Flame-Retardant Epoxy Resin

Distance Measuring Device

Light Shielding Member

Golf Club Shaft

210 patents: Sort by Forward Citations

1. 12480069 - Magnetic viscous fluid and mechanical device (2025-11-25),

2. 12419443 - Furniture for, inter alia, appreciating article (2025-09-23),

3. 12326582 - Light shielding member (2025-06-10),

4. 12282139 - Distance measuring device (2025-04-21),

5. 12227675 - UV curable composition, and UV curable sheet using same (2025-02-18),

6. 12209211 - UV curable resin composition and UV curable sheet (2025-01-28),

7. 11908601 - Magnetic responsiveness composite material and composition including the composite material (2024-02-20),

8. 11614571 - Black light shielding member (2023-03-28),

9. 11608448 - Thermosetting powder coating material, coating film using the coating material, and coated body comprising the coating film (2023-03-21),

10. 11578183 - Resin composition, method for producing resin composition, resin composition molded body, and method for producing resin composition molded body (2023-02-14),

11. 11407159 - Method for injection-molding thermosetting resin composition (2022-08-09),

12. 11225644 - Cell culture method, cell aggregates, cell aggregation control agent, and medium (2022-01-18),

13. 11125917 - Light-shading material for optical device (2021-09-21),

14. 11004582 - Molded product of magnetic powder composition comprising magnetic powder of surface-treated magnetite particles, and methods of producing thereof (2021-05-11),

15. 10663065 - Sealing member and sealing structure (2020-05-26),

Somar Corporation is a global technology and digital solutions company that offers a range of innovative services across various industries. With expertise in cutting-edge technologies, digital transformation, and data analytics, we empower businesses to optimize their operations and enhance their customer experiences. We deliver custom solutions, software development, cloud services, cybersecurity, and advanced analytics to help our clients stay ahead in the rapidly evolving digital landscape.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

210 Patents

#298 in Tokyo

#666 in Japan

#3,934 in the World

Somar Corporation

Forward Citations = 1,363

175 inventors:

Fumio Hamamura (26 out of 26 patents)

Shigeo Sumi (22 out of 22 patents)

Mitsuhiro Seki (18 out of 20 patents)

4. Sigeo Sumi (14 out of 14 patents)

5. Yoji Washizaki (14 out of 14 patents)

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