Growing community of inventors

Kamakura, Japan

Akihiko Tanaka

Average Co-Inventor Count = 2.77

ph-index = 3

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 = 65

Akihiko Tanaka ↔ Kazunori Yamada (2 patents)Akihiko Tanaka ↔ Toshiyuki Sato (1 patent)Akihiko Tanaka ↔ Koichiro Ban (1 patent)Akihiko Tanaka ↔ Magohei Tsukamoto (1 patent)Akihiko Tanaka ↔ Toshi Goto (1 patent)Akihiko TanakaAkihiko Tanaka (3 patents)Kazunori YamadaKazunori Yamada (4 patents)Toshiyuki SatoToshiyuki Sato (11 patents)Koichiro BanKoichiro Ban (5 patents)Magohei TsukamotoMagohei Tsukamoto (2 patents)Toshi GotoToshi Goto (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yamaha Hatsudoki Kabushiki Kaisha (3 from 4,237 patents)


3 patents:

1. 5251560 - Water-float coupling device

2. D294338 - Motorcycle

3. D293092 - Motorcycle

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as of
12/19/2025
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