Growing community of inventors

Shizuoka, Japan

Sadao Ojika

Average Co-Inventor Count = 5.00

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 = 0

Sadao Ojika ↔ Tomohiro Hagi (1 patent)Sadao Ojika ↔ Masaki Urano (1 patent)Sadao Ojika ↔ Tomohisa Matsumoto (1 patent)Sadao Ojika ↔ Daijyu Nagai (1 patent)Sadao OjikaSadao Ojika (1 patent)Tomohiro HagiTomohiro Hagi (16 patents)Masaki UranoMasaki Urano (2 patents)Tomohisa MatsumotoTomohisa Matsumoto (1 patent)Daijyu NagaiDaijyu Nagai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Yamaha Hatsudoki Kabushiki Kaisha (1 from 4,249 patents)


1 patent:

1. 12091146 - Outboard motor and marine vessel

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1/20/2026
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