Growing community of inventors

Kyoto, Japan

Hirotaka 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 = 0

Hirotaka KoyamaShigeyoshi Horiike (1 patent)Hirotaka KoyamaYukio Oikawa (1 patent)Hirotaka KoyamaHirotaka Koyama (1 patent)Shigeyoshi HoriikeShigeyoshi Horiike (24 patents)Yukio OikawaYukio Oikawa (14 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shimadzu Corporation (1 from 3,507 patents)


1 patent:

1. 11090631 - Method for hydrophobization of hydrophilic material

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12/19/2025
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