Growing community of inventors

Izumi, Japan

Osamu Sugai

Average Co-Inventor Count = 6.00

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

Osamu SugaiMisao Kubota (1 patent)Osamu SugaiToshiaki Yamaguchi (1 patent)Osamu SugaiKenji Shimada (1 patent)Osamu SugaiKikuo Koizumi (1 patent)Osamu SugaiTetsuo Goto (1 patent)Osamu SugaiOsamu Sugai (1 patent)Misao KubotaMisao Kubota (5 patents)Toshiaki YamaguchiToshiaki Yamaguchi (2 patents)Kenji ShimadaKenji Shimada (2 patents)Kikuo KoizumiKikuo Koizumi (1 patent)Tetsuo GotoTetsuo Goto (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tohoku Electric Power Company, Inc. (1 from 66 patents)

2. Totoku Electric Co., Ltd (1 from 42 patents)


1 patent:

1. 4830747 - Filter apparatus for removing plankton

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1/23/2026
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