Growing community of inventors

Tochigi, Japan

Koichi Hata

Average Co-Inventor Count = 2.32

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 = 120

Koichi HataMitsuo Saito (10 patents)Koichi HataAkihiro Miyazaki (3 patents)Koichi HataDaiji Ido (3 patents)Koichi HataKoji Imura (3 patents)Koichi HataTakeshi Kobayashi (1 patent)Koichi HataYohei Hama (1 patent)Koichi HataHideo Yanai (1 patent)Koichi HataMasanobu Miyazaki (1 patent)Koichi HataYusuke Hamaguchi (1 patent)Koichi HataToshiki Kinjyo (1 patent)Koichi HataKoichi Hata (11 patents)Mitsuo SaitoMitsuo Saito (15 patents)Akihiro MiyazakiAkihiro Miyazaki (3 patents)Daiji IdoDaiji Ido (3 patents)Koji ImuraKoji Imura (3 patents)Takeshi KobayashiTakeshi Kobayashi (27 patents)Yohei HamaYohei Hama (11 patents)Hideo YanaiHideo Yanai (9 patents)Masanobu MiyazakiMasanobu Miyazaki (5 patents)Yusuke HamaguchiYusuke Hamaguchi (5 patents)Toshiki KinjyoToshiki Kinjyo (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Showa Corporation (10 from 438 patents)

2. Honda Motor Co., Ltd. (2 from 21,862 patents)

3. Other (1 from 832,718 patents)

4. Matsushita Electric Industrial Co., Ltd. (27,375 patents)


11 patents:

1. 8578616 - Relative angle sensing device and electric power steering apparatus

2. 8528436 - Motor-driven steering assist apparatus

3. 8365859 - Motor-driven steering apparatus

4. 7930950 - Motor-driven steering assist apparatus

5. 7909129 - Steering shaft support structure of motor-driven steering assist apparatus

6. 7717225 - Motor-driven steering assist apparatus

7. 7661506 - Motor-driven steering apparatus

8. 7540511 - Support structure of motor-driven steering assist apparatus

9. 7458593 - Support structure of motor-driven steering assist apparatus

10. 7370724 - Motor-driven steering assist apparatus

11. 7185732 - Motor-driven steering assist apparatus

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as of
12/12/2025
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