Growing community of inventors

Hitachinaka, Japan

Norio Yanagawa

Average Co-Inventor Count = 4.80

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

Norio YanagawaShigeru Yumiyama (1 patent)Norio YanagawaShigehiko Omata (1 patent)Norio YanagawaYoshiaki Nagasawa (1 patent)Norio YanagawaShigenori Nakazato (1 patent)Norio YanagawaAtsushi Saeki (1 patent)Norio YanagawaKazuyuki Mori (1 patent)Norio YanagawaShingo Kitajima (1 patent)Norio YanagawaMitsutoshi Abe (1 patent)Norio YanagawaNorio Yanagawa (2 patents)Shigeru YumiyamaShigeru Yumiyama (13 patents)Shigehiko OmataShigehiko Omata (10 patents)Yoshiaki NagasawaYoshiaki Nagasawa (9 patents)Shigenori NakazatoShigenori Nakazato (6 patents)Atsushi SaekiAtsushi Saeki (4 patents)Kazuyuki MoriKazuyuki Mori (3 patents)Shingo KitajimaShingo Kitajima (2 patents)Mitsutoshi AbeMitsutoshi Abe (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (1 from 832,912 patents)

2. Hitachi Automotive Systems, Ltd. (1 from 2,028 patents)


2 patents:

1. 9422904 - Vehicle engine starting apparatus

2. 6460428 - Starter device for starting automobile use engine

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as of
1/10/2026
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