Growing community of inventors

Wakayama, Japan

Koichi Murayama

Average Co-Inventor Count = 5.00

ph-index = 3

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 = 51

Koichi MurayamaShigeyoshi Tanaka (2 patents)Koichi MurayamaAtsushi Katayama (2 patents)Koichi MurayamaRyoichi Hirayama (2 patents)Koichi MurayamaTakami Gema (2 patents)Koichi MurayamaHiroshi Kusuoku (1 patent)Koichi MurayamaMinoru Nagai (1 patent)Koichi MurayamaMasahide Hoshino (1 patent)Koichi MurayamaKiyoko Sugino (1 patent)Koichi MurayamaKoichi Murayama (3 patents)Shigeyoshi TanakaShigeyoshi Tanaka (12 patents)Atsushi KatayamaAtsushi Katayama (6 patents)Ryoichi HirayamaRyoichi Hirayama (3 patents)Takami GemaTakami Gema (2 patents)Hiroshi KusuokuHiroshi Kusuoku (16 patents)Minoru NagaiMinoru Nagai (10 patents)Masahide HoshinoMasahide Hoshino (8 patents)Kiyoko SuginoKiyoko Sugino (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kao Corporation (3 from 3,603 patents)


3 patents:

1. 6586639 - Functional alcohol releasing substance

2. 6486333 - Functional alcohol releasing substance

3. 5863945 - Amide derivatives and external skin or hair care preparations

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as of
1/5/2026
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