Growing community of inventors

Fukui, Japan

Katsuya Okumura

Average Co-Inventor Count = 3.43

ph-index = 2

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 = 9

Katsuya OkumuraJuji Uchida (2 patents)Katsuya OkumuraDaishiro Kishimoto (1 patent)Katsuya OkumuraToru Makino (1 patent)Katsuya OkumuraMasayuki Maeno (1 patent)Katsuya OkumuraKatsuya Okumura (2 patents)Juji UchidaJuji Uchida (5 patents)Daishiro KishimotoDaishiro Kishimoto (8 patents)Toru MakinoToru Makino (4 patents)Masayuki MaenoMasayuki Maeno (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nicca Chemical Co., Ltd. (2 from 57 patents)

2. Sanko Co., Ltd. (1 from 31 patents)


2 patents:

1. 7435769 - Flame resistant synthetic resin composition

2. 5279614 - Stain preventive treatment process for polyamide fiber

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as of
1/7/2026
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