Growing community of inventors

Fukuyama, Japan

Kei Yokoyama

Average Co-Inventor Count = 7.00

ph-index = 2

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 = 17

Kei YokoyamaYoshimi Shiroto (2 patents)Kei YokoyamaMitsunori Shimura (2 patents)Kei YokoyamaHiroaki Taniguchi (2 patents)Kei YokoyamaSeiya Otani (2 patents)Kei YokoyamaOsamu Akimoto (2 patents)Kei YokoyamaMasayoshi Notoya (2 patents)Kei YokoyamaKei Yokoyama (2 patents)Yoshimi ShirotoYoshimi Shiroto (24 patents)Mitsunori ShimuraMitsunori Shimura (12 patents)Hiroaki TaniguchiHiroaki Taniguchi (9 patents)Seiya OtaniSeiya Otani (2 patents)Osamu AkimotoOsamu Akimoto (2 patents)Masayoshi NotoyaMasayoshi Notoya (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nkk Corporation (2 from 614 patents)

2. Chiyoda Corporation (2 from 168 patents)


2 patents:

1. 5316821 - Partition plate for multiple-stage adsorption separator

2. 5200075 - Separator

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as of
12/6/2025
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