Growing community of inventors

Osaka, Japan

Shigeaki Hayashi

Average Co-Inventor Count = 1.92

ph-index = 10

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 = 191

Shigeaki Hayashi ↔ Kazuo Yamada (6 patents)Shigeaki Hayashi ↔ Hiroshi Sakaguchi (6 patents)Shigeaki Hayashi ↔ Masaji Sawada (6 patents)Shigeaki Hayashi ↔ Masafumi Yamagami (3 patents)Shigeaki Hayashi ↔ Harumi Tatsugami (3 patents)Shigeaki Hayashi ↔ Mikio Kosako (2 patents)Shigeaki Hayashi ↔ Harumi Sakamoto (1 patent)Shigeaki Hayashi ↔ Yoshiaki Kobayashi (1 patent)Shigeaki HayashiShigeaki Hayashi (17 patents)Kazuo YamadaKazuo Yamada (94 patents)Hiroshi SakaguchiHiroshi Sakaguchi (88 patents)Masaji SawadaMasaji Sawada (44 patents)Masafumi YamagamiMasafumi Yamagami (34 patents)Harumi TatsugamiHarumi Tatsugami (7 patents)Mikio KosakoMikio Kosako (38 patents)Harumi SakamotoHarumi Sakamoto (49 patents)Yoshiaki KobayashiYoshiaki Kobayashi (15 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sharp Corporation (17 from 847 patents)


17 patents:

1. D287139 - Calculator

2. D285566 - Printer

3. D284200 - Calculator

4. D281886 - Electronic printing calculator

5. D281435 - Printing calculator

6. D280418 - Electronic printing calculator

7. D280209 - Electronic printing calculator

8. D279106 - Desk-top calculator

9. D278156 - Printing calculator

10. D276238 - Document feeder for copying machine

11. D276051 - Electronic copying machine

12. D270252 - Electrostatic copying machine

13. D267093 - Teller machine

14. D261994 - Digital watch

15. D261732 - Digital watch

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as of
12/19/2025
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