Growing community of inventors

Hitachinaka, Japan

Kiichi Otaka

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 = 1

Kiichi Otaka ↔ Shinya Igarashi (1 patent)Kiichi Otaka ↔ Takeshi Morino (1 patent)Kiichi Otaka ↔ Chihiro Kobayashi (1 patent)Kiichi Otaka ↔ Yasuji Nishi (1 patent)Kiichi Otaka ↔ Yasunobu Kojima (1 patent)Kiichi OtakaKiichi Otaka (1 patent)Shinya IgarashiShinya Igarashi (72 patents)Takeshi MorinoTakeshi Morino (68 patents)Chihiro KobayashiChihiro Kobayashi (25 patents)Yasuji NishiYasuji Nishi (7 patents)Yasunobu KojimaYasunobu Kojima (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi, Ltd. (1 from 42,496 patents)

2. Hitachi Car Engineering Co., Ltd. (1 from 248 patents)


1 patent:

1. 7370518 - Heating resistor type fluid flow rate measuring apparatus and control apparatus for internal combustion engine having the measuring apparatus

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12/28/2025
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