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Osaka Gas Limited

USPTO Granted Patents = 7

EPO Patents = 7

Forward Citations = 17

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43 inventors (with patents filed for the assignee):

Mitsuaki Echigo (3 out of 39 patents)

Hisao Ohnishi (3 out of 38 patents)

Yuji Tsuda (3 out of 17 patents)

4. Kazuyuki Minami (1 out of 14 patents)

5. Kyohei Manabe (1 out of 11 patents)

6. Jun Tsubota (1 out of 3 patents)

7. Koichiro Ikeda (1 out of 9 patents)

8. Yukio Hiranaka (1 out of 3 patents)

9. Satoshi Mori (1 out of 7 patents)

10. Hiroshi Kawaguchi (1 out of 1 patent)

11. Takeshi Maeda (1 out of 2 patents)

12. Hitoshi Sakai (1 out of 1 patent)

13. Harukazu Yamaguchi (1 out of 1 patent)

14. Akio Ando (1 out of 1 patent)

15. Yasuo Matsushita (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 12679796 - Hydroxyalkanoic acid crystal production method and hydroxyalkanoic acid crystal polymorph (2026-07-14),

2. 12633562 - Manufacturing method for electrochemical element and electrochemical element (2026-05-19),

3. 12630488 - Hydrocarbon production system, and production method and operation method thereof (2026-05-19),

4. 12544729 - Reactor (2026-02-10),

5. 12529151 - Electrolysis cell unit, electrolysis cell device, hydrocarbon production system, and production method and use method of electrolysis cell unit (2026-01-20),

6. 5062926 - Solvent recovery apparatus (1991-11-05),

7. 4419163 - Pipeline coating method (1983-12-06),

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USPTO Data Jan 1 1976 - Sep 29 2026

7 Patents

#596 in Osaka

#5,441 in Japan

Osaka Gas Limited

Forward Citations = 17

43 inventors:

Mitsuaki Echigo (3 out of 39 patents)

Hisao Ohnishi (3 out of 38 patents)

Yuji Tsuda (3 out of 17 patents)

4. Kazuyuki Minami (1 out of 14 patents)

5. Kyohei Manabe (1 out of 11 patents)

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