Growing community of inventors

Yokohama, Japan

Toshimitsu Ishikawa

Average Co-Inventor Count = 7.00

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 = 12

Toshimitsu Ishikawa ↔ Hiromasa Hirakawa (1 patent)Toshimitsu Ishikawa ↔ Yasuhiro Aizawa (1 patent)Toshimitsu Ishikawa ↔ Mikio Sakurai (1 patent)Toshimitsu Ishikawa ↔ Takao Igarashi (1 patent)Toshimitsu Ishikawa ↔ Mutsuo Konno (1 patent)Toshimitsu Ishikawa ↔ Mishihiro Ozawa (1 patent)Toshimitsu IshikawaToshimitsu Ishikawa (1 patent)Hiromasa HirakawaHiromasa Hirakawa (10 patents)Yasuhiro AizawaYasuhiro Aizawa (10 patents)Mikio SakuraiMikio Sakurai (5 patents)Takao IgarashiTakao Igarashi (4 patents)Mutsuo KonnoMutsuo Konno (1 patent)Mishihiro OzawaMishihiro Ozawa (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (1 from 42,517 patents)

2. Hitachi Engineering Co., Ltd. (1 from 162 patents)


1 patent:

1. 4686079 - Fuel assembly

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1/9/2026
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