Growing community of inventors

Uji, Japan

Yukio Otsuka

Average Co-Inventor Count = 4.00

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 = 23

Yukio Otsuka ↔ Yoshio Sasaki (1 patent)Yukio Otsuka ↔ Shiro Imano (1 patent)Yukio Otsuka ↔ Teruo Nisidome (1 patent)Yukio OtsukaYukio Otsuka (1 patent)Yoshio SasakiYoshio Sasaki (7 patents)Shiro ImanoShiro Imano (1 patent)Teruo NisidomeTeruo Nisidome (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sekisui Kagaku Kogyo Kabushiki Kaisha (1 from 232 patents)


1 patent:

1. 4399031 - Biological sewage treatment apparatus of the rotary disc type

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12/6/2025
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