Growing community of inventors

Tokyo, Japan

Ikuo Betsui

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 = 17

Ikuo Betsui ↔ Akira Sugiyama (1 patent)Ikuo Betsui ↔ Nobuo Suzuki (1 patent)Ikuo Betsui ↔ Yoshio Kashima (1 patent)Ikuo Betsui ↔ Toyokazu Iwakiri (1 patent)Ikuo BetsuiIkuo Betsui (1 patent)Akira SugiyamaAkira Sugiyama (79 patents)Nobuo SuzukiNobuo Suzuki (58 patents)Yoshio KashimaYoshio Kashima (2 patents)Toyokazu IwakiriToyokazu Iwakiri (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seiko Instruments Inc (1 from 2,899 patents)


1 patent:

1. 4893889 - Optical attenuator

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12/31/2025
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