Growing community of inventors

Tokyo, Japan

Kei Yamana

Average Co-Inventor Count = 6.00

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 = 0

Kei YamanaYoshimasa Takahashi (2 patents)Kei YamanaYasunori Nakayama (2 patents)Kei YamanaYoshiaki Azuma (2 patents)Kei YamanaEiji Ochiai (2 patents)Kei YamanaHitoshi Wada (2 patents)Kei YamanaKei Yamana (2 patents)Yoshimasa TakahashiYoshimasa Takahashi (12 patents)Yasunori NakayamaYasunori Nakayama (8 patents)Yoshiaki AzumaYoshiaki Azuma (5 patents)Eiji OchiaiEiji Ochiai (4 patents)Hitoshi WadaHitoshi Wada (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Teijin Pharma Limited (2 from 125 patents)


2 patents:

1. 8617841 - Protein and production process and use thereof

2. 8481676 - Protein and production process and use thereof

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as of
12/11/2025
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