Growing community of inventors

Aichi, Japan

Ryuji Iwata

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 = 3

Ryuji IwataTakehiko Takahashi (1 patent)Ryuji IwataYuji Shimizu (1 patent)Ryuji IwataRyuji Iwata (1 patent)Takehiko TakahashiTakehiko Takahashi (50 patents)Yuji ShimizuYuji Shimizu (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Combi Corporation (1 from 192 patents)


1 patent:

1. 5183315 - Infant restraining chair

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12/10/2025
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