Growing community of inventors

Osaka, Japan

Kouji Koyama

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 = 14

Kouji KoyamaYoshio Tadokoro (1 patent)Kouji KoyamaKiyoshi Mutou (1 patent)Kouji KoyamaKouji Koyama (1 patent)Yoshio TadokoroYoshio Tadokoro (10 patents)Kiyoshi MutouKiyoshi Mutou (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Chemical Company, Limited (1 from 6,893 patents)


1 patent:

1. 6649104 - Acrylic resin film and laminated film comprising the same

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12/12/2025
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