Growing community of inventors

Hitachi, Japan

Taichi Oka

Average Co-Inventor Count = 2.01

ph-index = 3

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 = 35

Taichi OkaTakahiro Futatsumori (4 patents)Taichi OkaHideaki Takehara (3 patents)Taichi OkaShinji Ito (2 patents)Taichi OkaToru Sumi (2 patents)Taichi OkaKeisuke Sugita (2 patents)Taichi OkaMichiaki Shimizu (2 patents)Taichi OkaKentaro Abe (2 patents)Taichi OkaManabu Kako (2 patents)Taichi OkaKenji Nakajima (2 patents)Taichi OkaTomomi Onose (2 patents)Taichi OkaSachio Suzuki (1 patent)Taichi OkaKoichi Kato (1 patent)Taichi OkaTaichi Oka (12 patents)Takahiro FutatsumoriTakahiro Futatsumori (50 patents)Hideaki TakeharaHideaki Takehara (45 patents)Shinji ItoShinji Ito (28 patents)Toru SumiToru Sumi (24 patents)Keisuke SugitaKeisuke Sugita (18 patents)Michiaki ShimizuMichiaki Shimizu (9 patents)Kentaro AbeKentaro Abe (6 patents)Manabu KakoManabu Kako (3 patents)Kenji NakajimaKenji Nakajima (2 patents)Tomomi OnoseTomomi Onose (2 patents)Sachio SuzukiSachio Suzuki (47 patents)Koichi KatoKoichi Kato (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi Metals, Ltd. (6 from 2,333 patents)

2. Hitachi Cable, Inc. (4 from 836 patents)

3. Proterial, Ltd. (2 from 206 patents)


12 patents:

1. 12372421 - Pressure sensitive sensor with conducting members and an insulating member

2. 11933682 - Pressure sensitive sensor with conducting members and an insulating member

3. 10637197 - Connector and wire harness

4. 10529482 - Wire harness and electromagnetic wave suppression member

5. 10333247 - Wire harness

6. 10196017 - Wire harness

7. 10023136 - Wire harness

8. 9947435 - Wire harness

9. 7824210 - Connector

10. 7815461 - Connector for vehicles having a vibration-proof effect against vibration of a shielded electric wire

11. 7713101 - Male terminal having a U-shaped cross section

12. 7594832 - Connector structure with a u-shaped cross section having a male terminal and a female terminal

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as of
1/8/2026
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