Growing community of inventors

Aichi, Japan

Hisayasu Hasegawa

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 = 6

Hisayasu Hasegawa ↔ Kunio Hayashi (1 patent)Hisayasu Hasegawa ↔ Nobuo Fukuma (1 patent)Hisayasu Hasegawa ↔ Kimimasa Murayama (1 patent)Hisayasu Hasegawa ↔ Yoshihiro Tokudome (1 patent)Hisayasu HasegawaHisayasu Hasegawa (1 patent)Kunio HayashiKunio Hayashi (57 patents)Nobuo FukumaNobuo Fukuma (11 patents)Kimimasa MurayamaKimimasa Murayama (5 patents)Yoshihiro TokudomeYoshihiro Tokudome (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toyota Jidosha Kabushiki Kaisha (1 from 36,546 patents)


1 patent:

1. 4689864 - Method of making valve sleeves

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as of
12/10/2025
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