Growing community of inventors

Tokyo, Japan

Takashi Ohta

Average Co-Inventor Count = 2.31

ph-index = 8

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 = 404

Takashi OhtaKoji Nageno (16 patents)Takashi OhtaTomohiro Ito (14 patents)Takashi OhtaTomohiro Matsuo (14 patents)Takashi OhtaNobuyuki Matsui (4 patents)Takashi OhtaTadashi Murakami (4 patents)Takashi OhtaKenji Okumoto (3 patents)Takashi OhtaAtsushi Motoya (3 patents)Takashi OhtaKouhei Koresawa (3 patents)Takashi OhtaHiroshi Kido (2 patents)Takashi OhtaNaotaka Hashimoto (2 patents)Takashi OhtaJunichi Hasegawa (2 patents)Takashi OhtaMasahiro Kasano (2 patents)Takashi OhtaMasafumi Matsui (2 patents)Takashi OhtaShigeo Gotoh (2 patents)Takashi OhtaYouji Tachino (2 patents)Takashi OhtaTadasi Nisimura (2 patents)Takashi OhtaMakoto Yamada (1 patent)Takashi OhtaSeiji Nishiyama (1 patent)Takashi OhtaYuji Tanaka (1 patent)Takashi OhtaNaotaka Tsunoda (1 patent)Takashi OhtaOsamu Tanahashi (1 patent)Takashi OhtaHideki Seki (1 patent)Takashi OhtaKatsunori Murozaki (1 patent)Takashi OhtaKazuki Harada (1 patent)Takashi OhtaShinichi Aoki (1 patent)Takashi OhtaSatomi Takagi (1 patent)Takashi OhtaTakashi Ohta (39 patents)Koji NagenoKoji Nageno (57 patents)Tomohiro ItoTomohiro Ito (68 patents)Tomohiro MatsuoTomohiro Matsuo (16 patents)Nobuyuki MatsuiNobuyuki Matsui (61 patents)Tadashi MurakamiTadashi Murakami (24 patents)Kenji OkumotoKenji Okumoto (35 patents)Atsushi MotoyaAtsushi Motoya (20 patents)Kouhei KoresawaKouhei Koresawa (14 patents)Hiroshi KidoHiroshi Kido (43 patents)Naotaka HashimotoNaotaka Hashimoto (42 patents)Junichi HasegawaJunichi Hasegawa (33 patents)Masahiro KasanoMasahiro Kasano (28 patents)Masafumi MatsuiMasafumi Matsui (26 patents)Shigeo GotohShigeo Gotoh (11 patents)Youji TachinoYouji Tachino (10 patents)Tadasi NisimuraTadasi Nisimura (3 patents)Makoto YamadaMakoto Yamada (165 patents)Seiji NishiyamaSeiji Nishiyama (63 patents)Yuji TanakaYuji Tanaka (60 patents)Naotaka TsunodaNaotaka Tsunoda (20 patents)Osamu TanahashiOsamu Tanahashi (17 patents)Hideki SekiHideki Seki (12 patents)Katsunori MurozakiKatsunori Murozaki (10 patents)Kazuki HaradaKazuki Harada (7 patents)Shinichi AokiShinichi Aoki (6 patents)Satomi TakagiSatomi Takagi (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Sony Corporation (17 from 58,129 patents)

2. Panasonic Intellectual Property Management Co., Ltd. (9 from 13,247 patents)

3. Panasonic Corporation (7 from 16,453 patents)

4. Honda Motor Co., Ltd. (3 from 21,831 patents)

5. Joled Inc. (2 from 712 patents)

6. Sony Group Corporation (1 from 3,416 patents)


39 patents:

1. 12136170 - Information management device, information management method, and storage medium

2. 12084040 - Control device for vehicle

3. 12054136 - Vehicle control device, vehicle control method and recording medium

4. 11375307 - Earphone device

5. 10098364 - Method of preserving freshness of harvested crops, freshness preservation device, repository, and display device

6. 9969496 - Lighting apparatus and moving object

7. 9961428 - Earphone device

8. 9949006 - Earphone device

9. 9949007 - Earphone device

10. 9930437 - Earphone device

11. 9874662 - Illumination device

12. 9856021 - Lighting apparatus, lighting system, and moving object

13. 9849984 - Lighting apparatus with optical member having asymmetric light incident surface

14. 9826300 - Earphone device

15. 9518708 - Lighting apparatus

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as of
12/3/2025
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