Growing community of inventors

Osaka, Japan

Narutohsi Hayashi

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 = 3

Narutohsi Hayashi ↔ Takashi Omura (1 patent)Narutohsi Hayashi ↔ Kazuya Ogino (1 patent)Narutohsi Hayashi ↔ Setsuko Yamamoto (1 patent)Narutohsi HayashiNarutohsi Hayashi (1 patent)Takashi OmuraTakashi Omura (71 patents)Kazuya OginoKazuya Ogino (13 patents)Setsuko YamamotoSetsuko Yamamoto (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Chemical Company, Limited (1 from 6,896 patents)


1 patent:

1. 5609796 - Dye containing polarizing film

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as of
1/5/2026
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