Growing community of inventors

Tokyo-to, Japan

Ryotaro Fujikawa

Average Co-Inventor Count = 2.67

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

Ryotaro FujikawaKeisuke Itoh (2 patents)Ryotaro FujikawaTomohiro Matsumoto (1 patent)Ryotaro FujikawaIwao Furukawa (1 patent)Ryotaro FujikawaRyotaro Fujikawa (2 patents)Keisuke ItohKeisuke Itoh (2 patents)Tomohiro MatsumotoTomohiro Matsumoto (11 patents)Iwao FurukawaIwao Furukawa (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toyota Jidosha Kabushiki Kaisha (2 from 36,771 patents)

2. Subaru Corporation (2 from 2,091 patents)


2 patents:

1. 11577663 - Electric vehicle

2. 11535183 - Vehicle

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as of
1/9/2026
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