Growing community of inventors

Toyota, Japan

Keijiro Ohshima

Average Co-Inventor Count = 4.94

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 = 32

Keijiro OhshimaShigeru Kamio (2 patents)Keijiro OhshimaYuji Inoue (2 patents)Keijiro OhshimaYasushi Kobiki (2 patents)Keijiro OhshimaSumiko Amamiya (2 patents)Keijiro OhshimaKenichi Fujiki (2 patents)Keijiro OhshimaNobuhito Mori (2 patents)Keijiro OhshimaMasanori Miyakawa (2 patents)Keijiro OhshimaDaiki Nishiumi (2 patents)Keijiro OhshimaYasuhiro Nakai (1 patent)Keijiro OhshimaKeijiro Ohshima (4 patents)Shigeru KamioShigeru Kamio (103 patents)Yuji InoueYuji Inoue (61 patents)Yasushi KobikiYasushi Kobiki (13 patents)Sumiko AmamiyaSumiko Amamiya (12 patents)Kenichi FujikiKenichi Fujiki (9 patents)Nobuhito MoriNobuhito Mori (4 patents)Masanori MiyakawaMasanori Miyakawa (3 patents)Daiki NishiumiDaiki Nishiumi (2 patents)Yasuhiro NakaiYasuhiro Nakai (51 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toyota Jidosha Kabushiki Kaisha (4 from 36,922 patents)

2. Denso Corporation (2 from 19,805 patents)


4 patents:

1. 10569646 - Fuel cell vehicle

2. 10300788 - Vehicle with improved suppression of high voltage under collision load

3. 7609012 - Motor control apparatus

4. 7221116 - Motor control apparatus

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as of
1/22/2026
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