Growing community of inventors

Toyota, Japan

Ryota Nakai

Average Co-Inventor Count = 2.51

ph-index = 4

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 = 38

Ryota NakaiKenji Kido (4 patents)Ryota NakaiTatsuya Sonoda (4 patents)Ryota NakaiTakanori Ito (3 patents)Ryota NakaiHiroyuki Kobayashi (1 patent)Ryota NakaiMasayuki Yamaji (1 patent)Ryota NakaiKosuke Kubo (1 patent)Ryota NakaiShota Asano (1 patent)Ryota NakaiYo Hiruta (1 patent)Ryota NakaiKouhei Kobayashi (1 patent)Ryota NakaiTroy Shuji Sumitomo (1 patent)Ryota NakaiRyota Nakai (7 patents)Kenji KidoKenji Kido (50 patents)Tatsuya SonodaTatsuya Sonoda (10 patents)Takanori ItoTakanori Ito (15 patents)Hiroyuki KobayashiHiroyuki Kobayashi (109 patents)Masayuki YamajiMasayuki Yamaji (37 patents)Kosuke KuboKosuke Kubo (30 patents)Shota AsanoShota Asano (10 patents)Yo HirutaYo Hiruta (9 patents)Kouhei KobayashiKouhei Kobayashi (4 patents)Troy Shuji SumitomoTroy Shuji Sumitomo (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toyota Jidosha Kabushiki Kaisha (7 from 36,499 patents)

2. Fuji Jukogyo Kabushiki Kaisha (4 from 2,208 patents)

3. Fuji Jukogyo Kaubshiki Kaisha (1 from 1 patent)


7 patents:

1. D1079545 - Motor vehicle and/or toy replica

2. D689419 - Side mirror for an automobile

3. D686111 - Motor vehicle and/or toy replica thereof

4. D680472 - Bumper for an automobile

5. D672291 - Automobile

6. D671869 - Automobile

7. D624218 - Rear combination lamp for an automobile

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as of
12/8/2025
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