Growing community of inventors

Fukuoka, Japan

Katsuichi Irifune

Average Co-Inventor Count = 11.00

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 = 41

Katsuichi Irifune ↔ Osamu Tsutsui (1 patent)Katsuichi Irifune ↔ Shinji Shibata (1 patent)Katsuichi Irifune ↔ Atsuo Makita (1 patent)Katsuichi Irifune ↔ Ryosuke Hayashi (1 patent)Katsuichi Irifune ↔ Takashi Yoshioka (1 patent)Katsuichi Irifune ↔ Noboru Shinbara (1 patent)Katsuichi Irifune ↔ Ryouichi Tsukada (1 patent)Katsuichi Irifune ↔ Yoshiki Ohta (1 patent)Katsuichi Irifune ↔ Takayuki Ootani (1 patent)Katsuichi Irifune ↔ Nobuichiro Ohsato (1 patent)Katsuichi IrifuneKatsuichi Irifune (1 patent)Osamu TsutsuiOsamu Tsutsui (21 patents)Shinji ShibataShinji Shibata (18 patents)Atsuo MakitaAtsuo Makita (16 patents)Ryosuke HayashiRyosuke Hayashi (13 patents)Takashi YoshiokaTakashi Yoshioka (9 patents)Noboru ShinbaraNoboru Shinbara (7 patents)Ryouichi TsukadaRyouichi Tsukada (2 patents)Yoshiki OhtaYoshiki Ohta (2 patents)Takayuki OotaniTakayuki Ootani (1 patent)Nobuichiro OhsatoNobuichiro Ohsato (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toto Ltd. (1 from 1,190 patents)


1 patent:

1. 5502845 - Siphon-jet flush water supply system for toilet stool

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12/9/2025
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