Growing community of inventors

Sayama, Japan

Sumio Okamoto

Average Co-Inventor Count = 4.00

ph-index = 1

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 = 2

Sumio Okamoto ↔ Daizo Fukuma (1 patent)Sumio Okamoto ↔ Hisao Okamoto (1 patent)Sumio Okamoto ↔ Takemasa Koreki (1 patent)Sumio OkamotoSumio Okamoto (1 patent)Daizo FukumaDaizo Fukuma (6 patents)Hisao OkamotoHisao Okamoto (4 patents)Takemasa KorekiTakemasa Koreki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nissan Motor Company Limited (1 from 13,411 patents)


1 patent:

1. 4302258 - Composite propellant with 0.2.mu. or smaller metal fuel

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as of
12/31/2025
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