Growing community of inventors

Sapporo, Japan

Norio Kawahara

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 = 1

Norio Kawahara ↔ Ichiro Ishikawa (1 patent)Norio Kawahara ↔ Haruo Ogura (1 patent)Norio Kawahara ↔ Motoo Hozumi (1 patent)Norio Kawahara ↔ Yoshio Honma (1 patent)Norio Kawahara ↔ Tsuneo Itoh (1 patent)Norio KawaharaNorio Kawahara (1 patent)Ichiro IshikawaIchiro Ishikawa (9 patents)Haruo OguraHaruo Ogura (8 patents)Motoo HozumiMotoo Hozumi (1 patent)Yoshio HonmaYoshio Honma (1 patent)Tsuneo ItohTsuneo Itoh (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Meiji Seika Kaisha, Ltd. (1 from 382 patents)


1 patent:

1. 4939156 - New tetramethyl-cis-diaza-bicyclo{4.2.0}octane-3,5-dione derivatives

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as of
12/11/2025
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