Growing community of inventors

Tokyo, Japan

Yujiro Sugahara, Deceased

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 = 8

Yujiro Sugahara, DeceasedMasahide Ogawa (1 patent)Yujiro Sugahara, DeceasedTeiji Sato (1 patent)Yujiro Sugahara, DeceasedKoichi Usui (1 patent)Yujiro Sugahara, DeceasedSeiji Kojima (1 patent)Yujiro Sugahara, DeceasedYasuo Mizoguchi (1 patent)Yujiro Sugahara, DeceasedYujiro Sugahara, Deceased (1 patent)Masahide OgawaMasahide Ogawa (33 patents)Teiji SatoTeiji Sato (21 patents)Koichi UsuiKoichi Usui (12 patents)Seiji KojimaSeiji Kojima (4 patents)Yasuo MizoguchiYasuo Mizoguchi (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mizusawa Kagaku Kogyo Kabushiki Kaisha (1 from 20 patents)


1 patent:

1. 4405371 - Novel clay mineral color developer for pressure sensitive recording

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1/8/2026
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