Growing community of inventors

Chiba, Japan

Masahiro Katayama

Average Co-Inventor Count = 4.00

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 = 2

Masahiro KatayamaToshiyuki Tsubouchi (1 patent)Masahiro KatayamaYukio Yoshida (1 patent)Masahiro KatayamaMotohisa Ido (1 patent)Masahiro KatayamaMasahiro Katayama (1 patent)Toshiyuki TsubouchiToshiyuki Tsubouchi (37 patents)Yukio YoshidaYukio Yoshida (16 patents)Motohisa IdoMotohisa Ido (12 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Idemitsu Kosan Company, Limited (1 from 2,269 patents)


1 patent:

1. 6841713 - Process for preparing bicylo[2.2.1] heptane derivatives

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12/8/2025
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