Growing community of inventors

Kamakura, Japan

Masaji Oono

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 = 1

Masaji Oono ↔ Hamao Umezawa (1 patent)Masaji Oono ↔ Yoshinori Kyotani (1 patent)Masaji Oono ↔ Yoshio Takahashi (1 patent)Masaji Oono ↔ Hiroshi Ishihama (1 patent)Masaji OonoMasaji Oono (1 patent)Hamao UmezawaHamao Umezawa (203 patents)Yoshinori KyotaniYoshinori Kyotani (27 patents)Yoshio TakahashiYoshio Takahashi (10 patents)Hiroshi IshihamaHiroshi Ishihama (8 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kowa Company Limited (1 from 591 patents)


1 patent:

1. 4511509 - 3-Alkylidine azetidine compound and their production

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1/16/2026
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