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Ihara Science Corporation

USPTO Granted Patents = 14

% Expired Patents = 14.3

EPO Patents = 5

Trademarks = 2

Forward Citations = 18

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21 inventors (with patents filed for the assignee):

Shinji Fukaya (5 out of 8 patents)

Miyoshi Kimura (5 out of 5 patents)

Osamu Yamaguchi (3 out of 61 patents)

4. Hideichi Tsuboi (2 out of 2 patents)

5. Tatsuya Murakawa (2 out of 2 patents)

6. Daisuke Nishida (2 out of 2 patents)

7. Yoshitaka Hara (1 out of 27 patents)

8. Yuji Yamaguchi (1 out of 10 patents)

9. Toshimitsu Suzuki (1 out of 1 patent)

10. Masaji Nagao (1 out of 1 patent)

11. Tatsuya Hayashi (1 out of 6 patents)

12. Susumu Karasawa (1 out of 1 patent)

13. Kazuhiro Oya (1 out of 4 patents)

14. Toshiyuki Himi (1 out of 2 patents)

15. Yusuke Nagase (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. D1126372 - Pipe fitting (2026-05-12),

2. D1120243 - Pipe fitting (2026-03-24),

3. 12270473 - Coupling structure (2025-04-08),

4. 12025245 - Joint structure (2024-07-02),

5. 11988306 - Joining structure, pipe joint, and method for forming joining structure (2024-05-21),

6. 11338314 - Nozzle device and nozzle unit (2022-05-24),

7. 11092267 - Fitting, ferrule, and ferrule manufacturing method (2021-08-17),

8. 10436329 - Valve having a stem spaced away from a valve seat and configured to rotate around an axis parallel with an opening surface of the valve seat (2019-10-08),

9. 9829129 - Fitting, ferrule, and ferrule manufacturing method (2017-11-28),

10. 9512946 - Joint (2016-12-06),

11. 8979137 - Coupling ring (2015-03-17),

12. 8491017 - Fitting structure including a pair of connection pipes and a clamp ring (2013-07-23),

13. 8387435 - Elbow material production device and production method thereof (2013-03-05),

14. 8152205 - Stainless-steel fitting for resin tubes (2012-04-10),

Ihara Science Corporation is a leading Japanese company specializing in the development and manufacture of agricultural chemicals, pharmaceuticals, and veterinary drugs. With a strong focus on research and innovation, Ihara Science Corporation is committed to creating advanced solutions to enhance productivity and sustainability in agriculture and healthcare sectors.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Ihara Science Corporation

14 Patents

#1,596 in Tokyo

#3,573 in Japan

#42,168 in the World

Ihara Science Corporation

Forward Citations = 18

21 inventors:

Shinji Fukaya (5 out of 8 patents)

Miyoshi Kimura (5 out of 5 patents)

Osamu Yamaguchi (3 out of 61 patents)

4. Hideichi Tsuboi (2 out of 2 patents)

5. Tatsuya Murakawa (2 out of 2 patents)

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