Growing community of inventors

Ueda, Japan

Seiji Onuma

Average Co-Inventor Count = 2.11

ph-index = 7

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 = 170

Seiji Onuma ↔ Hideki Tomiyama (4 patents)Seiji Onuma ↔ Toshio Heishi (2 patents)Seiji Onuma ↔ Tetsuya Yoshiike (2 patents)Seiji Onuma ↔ Takeaki Ohsawa (1 patent)Seiji Onuma ↔ Hikaru Kodama (1 patent)Seiji Onuma ↔ Kouji Morishita (1 patent)Seiji Onuma ↔ Junji Kumai (1 patent)Seiji OnumaSeiji Onuma (10 patents)Hideki TomiyamaHideki Tomiyama (5 patents)Toshio HeishiToshio Heishi (8 patents)Tetsuya YoshiikeTetsuya Yoshiike (2 patents)Takeaki OhsawaTakeaki Ohsawa (2 patents)Hikaru KodamaHikaru Kodama (1 patent)Kouji MorishitaKouji Morishita (1 patent)Junji KumaiJunji Kumai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hioki Denki Kabushiki Kaisha (6 from 49 patents)

2. Hioki E.e. Corporation (4 from 34 patents)


10 patents:

1. D789814 - Clamp meter

2. D705681 - Digital multi meter

3. D705099 - Digital multi meter

4. D704579 - Digital multi meter

5. D700085 - Insulation resistance tester

6. D481963 - Digital multi-meter

7. D435796 - Digital multi-meter

8. D395834 - Insulation resistance tester

9. D390139 - Digital multi-meter

10. D381280 - Digital multi-meter

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idiyas.com
as of
12/11/2025
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