Growing community of inventors

Osaka, Japan

Kouhei Oka

Average Co-Inventor Count = 3.00

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 = 1

Kouhei OkaHiroyuki Shimizu (1 patent)Kouhei OkaJianwei Shi (1 patent)Kouhei OkaKouhei Oka (1 patent)Hiroyuki ShimizuHiroyuki Shimizu (4 patents)Jianwei ShiJianwei Shi (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Teijin Limited (1 from 1,588 patents)


1 patent:

1. 9783244 - Hollow structure body and vehicular component

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12/31/2025
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