Growing community of inventors

Fujisawa, Japan

Ichiro Tsubokawa

Average Co-Inventor Count = 6.00

ph-index = 2

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 = 29

Ichiro Tsubokawa ↔ Akira Ikegami (2 patents)Ichiro Tsubokawa ↔ Hiromi Tosaki (2 patents)Ichiro Tsubokawa ↔ Teruo Mozume (2 patents)Ichiro Tsubokawa ↔ Jun Yamada (1 patent)Ichiro Tsubokawa ↔ Tokio Isogai (1 patent)Ichiro Tsubokawa ↔ Hideo Arima (1 patent)Ichiro Tsubokawa ↔ Kiyoshi Sakashita (1 patent)Ichiro TsubokawaIchiro Tsubokawa (2 patents)Akira IkegamiAkira Ikegami (55 patents)Hiromi TosakiHiromi Tosaki (8 patents)Teruo MozumeTeruo Mozume (4 patents)Jun YamadaJun Yamada (64 patents)Tokio IsogaiTokio Isogai (22 patents)Hideo ArimaHideo Arima (18 patents)Kiyoshi SakashitaKiyoshi Sakashita (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (2 from 42,485 patents)


2 patents:

1. 4347166 - Thermistor composition

2. 4160227 - Thermistor composition and thick film thermistor

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as of
12/7/2025
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