Growing community of inventors

Tokyo, Japan

Norihisa Ichikawa

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 = 4

Norihisa IchikawaHiroshi Yokoi (1 patent)Norihisa IchikawaMasahiro Kihara (1 patent)Norihisa IchikawaSouichi Katsuta (1 patent)Norihisa IchikawaNorihisa Ichikawa (1 patent)Hiroshi YokoiHiroshi Yokoi (5 patents)Masahiro KiharaMasahiro Kihara (4 patents)Souichi KatsutaSouichi Katsuta (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Senko Medical Instrument Mfg. Co., Ltd. (1 from 29 patents)


1 patent:

1. 10124092 - Air leak detection device and electrically powered suction equipment provided therewith

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12/10/2025
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