Osaka, Japan

Shinichi Sugihara

Average Co-Inventor Count = 3.86

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 = 108

Inventor’s number of patents

Strength of working relationships

Company Filing History:

1. Matsushita Electric Industrial Co., Ltd. (16 from 27,375 patents)

16 patents:

1. D374030 - Electronic copying machine with facsimile

2. D365806 - Portable laptop computer

3. D358584 - Portable laptop computer

4. D354523 - Video game machine

5. D353133 - Portable laptop computer

6. D348053 - Portable laptop computer

7. D341576 - Portable laptop computer

8. D341577 - Portable laptop computer

9. D341579 - Portable laptop computer

10. D341355 - Portable laptop computer

11. D339370 - Copying machine

12. D332444 - Portable laptop computer

13. D329455 - Document feeder for a copying machine

14. D329454 - Sorter for a copying machine

15. D328095 - Copying machine

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as of
1/3/2026

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Osaka, Japan

Shinichi Sugihara