Growing community of inventors

Yokohama, Japan

Sumio Sakai

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 = 9

Sumio SakaiKazushige Ooi (1 patent)Sumio SakaiNobuaki Yoshida (1 patent)Sumio SakaiYoshio Mori (1 patent)Sumio SakaiSumio Sakai (1 patent)Kazushige OoiKazushige Ooi (10 patents)Nobuaki YoshidaNobuaki Yoshida (3 patents)Yoshio MoriYoshio Mori (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tokyo Shibaura Denki Kabushiki Kaisha (1 from 2,916 patents)

2. Nippon Kogaku K.k. (1 from 849 patents)


1 patent:

1. 4480269 - Television camera

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12/7/2025
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