Growing community of inventors

Warabi, Japan

Seiji Koguma

Average Co-Inventor Count = 1.00

ph-index = 8

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 158

Seiji KogumaSeiji Koguma (14 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Okamura Corporation (14 from 421 patents)


14 patents:

1. D345266 - Desk

2. D341273 - Desk

3. D337675 - Desk

4. D336391 - Desk

5. D334103 - Desk

6. D317091 - Desk

7. D317092 - Desk

8. D317090 - Desk

9. D317093 - Desk

10. D281746 - Desk

11. D278772 - Desk

12. D278770 - Desk

13. D278771 - Desk

14. D278583 - Desk

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as of
1/3/2026
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