Growing community of inventors

Kanagawa, Japan

Takao Isogawa

Average Co-Inventor Count = 5.69

ph-index = 4

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 = 304

Takao IsogawaHisashi Takayama (13 patents)Takao IsogawaMitsuaki Oshima (12 patents)Takao IsogawaSeiji Sakashita (12 patents)Takao IsogawaKenichiro Hayashi (12 patents)Takao IsogawaSadashi Kageyama (12 patents)Takao IsogawaKyoko Kawaguchi (1 patent)Takao IsogawaTsuyoshi Ueno (1 patent)Takao IsogawaYoshihiro Noguchi (1 patent)Takao IsogawaHideki Yasukawa (1 patent)Takao IsogawaFumiyuki Kato (1 patent)Takao IsogawaYutaka Tomioka (1 patent)Takao IsogawaMasaki Hoshida (1 patent)Takao IsogawaHayashi Itou (1 patent)Takao IsogawaTakao Isogawa (14 patents)Hisashi TakayamaHisashi Takayama (63 patents)Mitsuaki OshimaMitsuaki Oshima (352 patents)Seiji SakashitaSeiji Sakashita (51 patents)Kenichiro HayashiKenichiro Hayashi (27 patents)Sadashi KageyamaSadashi Kageyama (27 patents)Kyoko KawaguchiKyoko Kawaguchi (35 patents)Tsuyoshi UenoTsuyoshi Ueno (27 patents)Yoshihiro NoguchiYoshihiro Noguchi (23 patents)Hideki YasukawaHideki Yasukawa (8 patents)Fumiyuki KatoFumiyuki Kato (6 patents)Yutaka TomiokaYutaka Tomioka (5 patents)Masaki HoshidaMasaki Hoshida (4 patents)Hayashi ItouHayashi Itou (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Panasonic Intellectual Property Management Co., Ltd. (8 from 13,247 patents)

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

3. Matsushita Electric Industrial Co., Ltd. (2 from 27,375 patents)

4. Sovereign Peak Ventures, LLC (1 from 13 patents)


14 patents:

1. RE47844 - OFDM signal transmission system, portable terminal and E-commerce system

2. RE46775 - OFDM signal transmission system, portable terminal and E-commerce system

3. RE45784 - OFDM signal transmission system, portable terminal and E-commerce system

4. RE45758 - OFDM signal transmission system, portable terminal and E-commerce system

5. RE45737 - OFDM signal transmission system, portable terminal and E-commerce system

6. RE45706 - OFDM signal transmission system, portable terminal and E-commerce system

7. RE45662 - OFDM signal transmission system, portable terminal and E-commerce system

8. RE45663 - OFDM signal transmission system, portable terminal and E-commerce system

9. RE45654 - OFDM signal transmission system, portable terminal and E-commerce system

10. RE45218 - OFDM signal transmission system, portable terminal and E-commerce system

11. 7865431 - Private electronic value bank system

12. 7809407 - OFDM signal transmission system, portable terminal, and e-commerce system

13. 7203158 - OFDM signal transmission system, portable terminal, and e-commerce system

14. 7047550 - System for processing program information

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as of
12/7/2025
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