Growing community of inventors

Hiroshima, Japan

Eiichi Hamanaga

Average Co-Inventor Count = 3.83

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 = 10

Eiichi HamanagaKouichi Hayashi (2 patents)Eiichi HamanagaIsao Hirashima (1 patent)Eiichi HamanagaToshinori Sakamoto (1 patent)Eiichi HamanagaIwao Koizumi (1 patent)Eiichi HamanagaMasashi Nakayama (1 patent)Eiichi HamanagaKatsuya Miyazaki (1 patent)Eiichi HamanagaKouji Sakamoto (1 patent)Eiichi HamanagaNoriaki Tsurumi (1 patent)Eiichi HamanagaEiichi Hamanaga (3 patents)Kouichi HayashiKouichi Hayashi (35 patents)Isao HirashimaIsao Hirashima (21 patents)Toshinori SakamotoToshinori Sakamoto (16 patents)Iwao KoizumiIwao Koizumi (10 patents)Masashi NakayamaMasashi Nakayama (4 patents)Katsuya MiyazakiKatsuya Miyazaki (2 patents)Kouji SakamotoKouji Sakamoto (1 patent)Noriaki TsurumiNoriaki Tsurumi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mazda Motor Corporation (3 from 4,680 patents)


3 patents:

1. D471496 - Steering wheel for motor vehicle

2. D470808 - Center console of motor vehicle

3. 5224751 - Instrument panel structure of vehicle

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as of
12/29/2025
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