Growing community of inventors

Tokyo, Japan

Masako Ohta

Average Co-Inventor Count = 4.80

ph-index = 5

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 = 412

Masako OhtaMitsuo Shimotani (4 patents)Masako OhtaTsutomu Matsubara (4 patents)Masako OhtaTsuyoshi Sempuku (4 patents)Masako OhtaTakashi Sadahiro (4 patents)Masako OhtaYuichi Okano (4 patents)Masako OhtaKazuhiro Yokouchi (1 patent)Masako OhtaToshimichi Tokunaga (1 patent)Masako OhtaYoshiaki Hirasa (1 patent)Masako OhtaHiroaki Ideno (1 patent)Masako OhtaHaruto Yano (1 patent)Masako OhtaHisatsugu Itoh (1 patent)Masako OhtaIkuo Saga (1 patent)Masako OhtaChisato Yoshida (1 patent)Masako OhtaShigeki Nakane (1 patent)Masako OhtaMasatsugu Norimoto (1 patent)Masako OhtaKatsuaki Matsumoto (1 patent)Masako OhtaTatsuy Mitsugi (1 patent)Masako OhtaKei Gomita (1 patent)Masako OhtaMasako Ohta (8 patents)Mitsuo ShimotaniMitsuo Shimotani (111 patents)Tsutomu MatsubaraTsutomu Matsubara (48 patents)Tsuyoshi SempukuTsuyoshi Sempuku (26 patents)Takashi SadahiroTakashi Sadahiro (9 patents)Yuichi OkanoYuichi Okano (8 patents)Kazuhiro YokouchiKazuhiro Yokouchi (14 patents)Toshimichi TokunagaToshimichi Tokunaga (14 patents)Yoshiaki HirasaYoshiaki Hirasa (10 patents)Hiroaki IdenoHiroaki Ideno (9 patents)Haruto YanoHaruto Yano (8 patents)Hisatsugu ItohHisatsugu Itoh (8 patents)Ikuo SagaIkuo Saga (8 patents)Chisato YoshidaChisato Yoshida (7 patents)Shigeki NakaneShigeki Nakane (4 patents)Masatsugu NorimotoMasatsugu Norimoto (4 patents)Katsuaki MatsumotoKatsuaki Matsumoto (3 patents)Tatsuy MitsugiTatsuy Mitsugi (1 patent)Kei GomitaKei Gomita (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Denki Kabushiki Kaisha (4 from 21,351 patents)

2. Mitsubishi Electric Corporation (4 from 15,906 patents)

3. Mitsubishi Jidosha Kogyo Kabushiki Kaisha (1 from 1,625 patents)


8 patents:

1. 9069453 - Display input device

2. 8963849 - Display input device

3. 8890819 - Display input device and vehicle-mounted information equipment

4. 8677287 - Display input device and navigation device

5. 6859149 - Vehicle information display apparatus

6. 5982301 - Navigation apparatus

7. 5862510 - Navigation device

8. 5289572 - Electronic map combined with user service information

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as of
12/27/2025
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