Growing community of inventors

Ibaraki, Japan

Tomohiko Tagawa

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 = 2

Tomohiko Tagawa ↔ Minoru Iwasaki (1 patent)Tomohiko Tagawa ↔ Shigeru Kishimoto (1 patent)Tomohiko Tagawa ↔ Kouji Aizawa (1 patent)Tomohiko Tagawa ↔ Kaname Takagi (1 patent)Tomohiko TagawaTomohiko Tagawa (1 patent)Minoru IwasakiMinoru Iwasaki (4 patents)Shigeru KishimotoShigeru Kishimoto (1 patent)Kouji AizawaKouji Aizawa (1 patent)Kaname TakagiKaname Takagi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi Industries Co., Ltd. (1 from 15 patents)


1 patent:

1. 7128523 - Drainage pump and underwater bearing unit

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as of
1/8/2026
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