Growing community of inventors

Fukuyama, Japan

Yoichi Koga

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

Yoichi Koga ↔ Hiroshi Kuwamoto (1 patent)Yoichi Koga ↔ Shuichi Iwado (1 patent)Yoichi Koga ↔ Toshimi Muto (1 patent)Yoichi Koga ↔ Tomoya Izushi (1 patent)Yoichi Koga ↔ Nobuomi Kuroi (1 patent)Yoichi KogaYoichi Koga (1 patent)Hiroshi KuwamotoHiroshi Kuwamoto (14 patents)Shuichi IwadoShuichi Iwado (7 patents)Toshimi MutoToshimi Muto (2 patents)Tomoya IzushiTomoya Izushi (1 patent)Nobuomi KuroiNobuomi Kuroi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Nippon Kokan Kabushiki Kaisha (1 from 487 patents)

2. Yushiro Chemical Industry Co., Ltd. (1 from 22 patents)


1 patent:

1. 4883606 - Water-soluble temper rolling oil and method of temper rolling

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as of
12/9/2025
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