Growing community of inventors

Kawasaki, Japan

Hirofumi Minowa

Average Co-Inventor Count = 4.44

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 = 17

Hirofumi Minowa ↔ Takao Yanase (2 patents)Hirofumi Minowa ↔ Masaru Yamazoe (2 patents)Hirofumi Minowa ↔ Shinichi Ishii (1 patent)Hirofumi Minowa ↔ Shin'ichi Ishii (1 patent)Hirofumi Minowa ↔ Yoshinobu Nagao (1 patent)Hirofumi MinowaHirofumi Minowa (2 patents)Takao YanaseTakao Yanase (11 patents)Masaru YamazoeMasaru Yamazoe (2 patents)Shinichi IshiiShinichi Ishii (16 patents)Shin'ichi IshiiShin'ichi Ishii (1 patent)Yoshinobu NagaoYoshinobu Nagao (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fuji Electric Co., Ltd. (2 from 4,814 patents)


2 patents:

1. 5481172 - Circuit for controlling power converting apparatus

2. 5285145 - Current-limit system for voltage-type inverter

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1/3/2026
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