For the Inventor, By the Inventor

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Tsubame Bhb Co., Ltd.

USPTO Granted Patents = 5

EPO Patents = 1

Forward Citations = 18

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10 inventors (with patents filed for the assignee):

Toshiharu Yokoyama (4 out of 43 patents)

Kazuhisa Kishida (4 out of 5 patents)

Masaaki Kitano (4 out of 23 patents)

4. Hideo Hosono (4 out of 93 patents)

5. Shigeki Kawamura (3 out of 3 patents)

6. Jiang Li (3 out of 10 patents)

7. Munenobu Ito (1 out of 4 patents)

8. Yasunori Inoue (1 out of 5 patents)

9. Katsunobu Yamaguchi (1 out of 5 patents)

10. Taichi Yagi (1 out of 1 patent)

11. Hideo Hosono (0 patent)

5 patents: Sort by Forward Citations

1. 12472485 - Molded sintered body, and method for producing molded sintered body (2025-11-18),

2. 12458953 - Method for manufacturing ammonia synthesis catalyst, and method for manufacturing ammonia (2025-11-04),

3. 12209025 - Ammonia synthesis system and ammonia production method (2025-01-28),

4. 11964260 - Method for manufacturing ammonia synthesis catalyst, and method for manufacturing ammonia (2024-04-23),

5. 11235310 - Method for manufacturing ammonia synthesis catalyst, and method for manufacturing ammonia (2022-02-01),

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USPTO Data Jan 1 1976 - Dec 30 2025

5 Patents

#2,444 in Tokyo

#6,488 in Japan

Tsubame Bhb Co., Ltd.

Forward Citations = 18

10 inventors:

Toshiharu Yokoyama (4 out of 43 patents)

Kazuhisa Kishida (4 out of 5 patents)

Masaaki Kitano (4 out of 23 patents)

4. Hideo Hosono (4 out of 93 patents)

5. Shigeki Kawamura (3 out of 3 patents)

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