Growing community of inventors

Kawasaki, Japan

Keita Okawa

Average Co-Inventor Count = 7.00

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 = 9

Keita Okawa ↔ Masato Takahashi (1 patent)Keita Okawa ↔ Hiroyuki Yoshimura (1 patent)Keita Okawa ↔ Michihiko Tsuruoka (1 patent)Keita Okawa ↔ Hironobu Yao (1 patent)Keita Okawa ↔ Iwao Matsumoto (1 patent)Keita Okawa ↔ Masakazu Kawakami (1 patent)Keita OkawaKeita Okawa (1 patent)Masato TakahashiMasato Takahashi (82 patents)Hiroyuki YoshimuraHiroyuki Yoshimura (18 patents)Michihiko TsuruokaMichihiko Tsuruoka (18 patents)Hironobu YaoHironobu Yao (15 patents)Iwao MatsumotoIwao Matsumoto (3 patents)Masakazu KawakamiMasakazu Kawakami (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fuji Electric Co., Ltd. (1 from 4,819 patents)


1 patent:

1. 5728952 - Vibration measuring instrument

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1/8/2026
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