Growing community of inventors

Kitakyushu, Japan

Hiroyuki Kiyofuji

Average Co-Inventor Count = 5.00

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

Hiroyuki Kiyofuji ↔ Katsuhiro Shirono (1 patent)Hiroyuki Kiyofuji ↔ Hidefumi Yamaguchi (1 patent)Hiroyuki Kiyofuji ↔ Jun Fuchigami (1 patent)Hiroyuki Kiyofuji ↔ Rinpei Tokuou (1 patent)Hiroyuki KiyofujiHiroyuki Kiyofuji (1 patent)Katsuhiro ShironoKatsuhiro Shirono (12 patents)Hidefumi YamaguchiHidefumi Yamaguchi (1 patent)Jun FuchigamiJun Fuchigami (1 patent)Rinpei TokuouRinpei Tokuou (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Catalysts & Chemicals Industries Co., Ltd. (1 from 102 patents)


1 patent:

1. 5110783 - Hydrotreating catalyst and method for preparation thereof

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as of
12/16/2025
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