Growing community of inventors

Ichihara, Japan

Kazuhiko Nakao

Average Co-Inventor Count = 2.61

ph-index = 6

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 = 118

Kazuhiko NakaoHideyuki Horie (2 patents)Kazuhiko NakaoKeizo Furuya (2 patents)Kazuhiko NakaoJunichi Udagawa (2 patents)Kazuhiko NakaoKiyoshi Kobayashi (1 patent)Kazuhiko NakaoTakashi Abe (1 patent)Kazuhiko NakaoHitoshi Otsuka (1 patent)Kazuhiko NakaoYoshio Ogimura (1 patent)Kazuhiko NakaoNobuhiro Umehara (1 patent)Kazuhiko NakaoKenji Ido (1 patent)Kazuhiko NakaoToshiyuki Yamanouchi (1 patent)Kazuhiko NakaoToshiyuki Yamanouchi (1 patent)Kazuhiko NakaoMasato Yoshida (1 patent)Kazuhiko NakaoYoshitoyo Nishite (1 patent)Kazuhiko NakaoNobuhiro Oku (1 patent)Kazuhiko NakaoYuji Nakamura (1 patent)Kazuhiko NakaoKeizo Ishimaru (1 patent)Kazuhiko NakaoKyouichi Ikeda (1 patent)Kazuhiko NakaoKoji Sugiura (1 patent)Kazuhiko NakaoKazuhiko Nakao (9 patents)Hideyuki HorieHideyuki Horie (15 patents)Keizo FuruyaKeizo Furuya (8 patents)Junichi UdagawaJunichi Udagawa (2 patents)Kiyoshi KobayashiKiyoshi Kobayashi (80 patents)Takashi AbeTakashi Abe (15 patents)Hitoshi OtsukaHitoshi Otsuka (14 patents)Yoshio OgimuraYoshio Ogimura (13 patents)Nobuhiro UmeharaNobuhiro Umehara (12 patents)Kenji IdoKenji Ido (8 patents)Toshiyuki YamanouchiToshiyuki Yamanouchi (7 patents)Toshiyuki YamanouchiToshiyuki Yamanouchi (4 patents)Masato YoshidaMasato Yoshida (3 patents)Yoshitoyo NishiteYoshitoyo Nishite (3 patents)Nobuhiro OkuNobuhiro Oku (2 patents)Yuji NakamuraYuji Nakamura (2 patents)Keizo IshimaruKeizo Ishimaru (1 patent)Kyouichi IkedaKyouichi Ikeda (1 patent)Koji SugiuraKoji Sugiura (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kabushiki Kaisha Toshiba (5 from 52,766 patents)

2. Toshiba Elevator Kabushiki Kaisha (2 from 74 patents)

3. Toshiba Schneider Inverter Corporation (2 from 7 patents)

4. Schneider Toshiba Inverter Europe Sas (1 from 107 patents)


9 patents:

1. D633441 - Inverter

2. 7183511 - Operating button device for elevator

3. D535804 - Portion of inlet for escalator

4. D510321 - Inverter

5. D452873 - Bank note checking machine

6. 6081375 - Multiscreen display formed of projection units arranged in the vertical

7. 5640272 - Multiscreen display and process for assembling the same

8. D300279 - Washing machine

9. D289212 - Washing machine

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as of
1/8/2026
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