Growing community of inventors

Takasaki, Japan

Keiichi Ookawa

Average Co-Inventor Count = 11.00

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 = 119

Keiichi OokawaKazuya Takahashi (9 patents)Keiichi OokawaToshiyuki Hata (9 patents)Keiichi OokawaRyoichi Kajiwara (9 patents)Keiichi OokawaToshinori Hirashima (9 patents)Keiichi OokawaMunehisa Kishimoto (9 patents)Keiichi OokawaMasahiro Koizumi (9 patents)Keiichi OokawaHiroshi Sato (9 patents)Keiichi OokawaShigeru Ishii (9 patents)Keiichi OokawaToshiaki Morita (8 patents)Keiichi OokawaYasushi Takahashi (1 patent)Keiichi OokawaToshiak Morita (1 patent)Keiichi OokawaKeiichi Ookawa (9 patents)Kazuya TakahashiKazuya Takahashi (62 patents)Toshiyuki HataToshiyuki Hata (52 patents)Ryoichi KajiwaraRyoichi Kajiwara (33 patents)Toshinori HirashimaToshinori Hirashima (24 patents)Munehisa KishimotoMunehisa Kishimoto (22 patents)Masahiro KoizumiMasahiro Koizumi (21 patents)Hiroshi SatoHiroshi Sato (17 patents)Shigeru IshiiShigeru Ishii (9 patents)Toshiaki MoritaToshiaki Morita (38 patents)Yasushi TakahashiYasushi Takahashi (73 patents)Toshiak MoritaToshiak Morita (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi Tohbu Semiconductor, Ltd. (7 from 35 patents)

2. Renesas Electronics Corporation (4 from 7,524 patents)

3. Renesas Technology Corp. (4 from 3,781 patents)

4. Other (1 from 832,680 patents)

5. Renesas Eastern Japan Semiconductor, Inc. (1 from 30 patents)


9 patents:

1. 8816411 - Mosfet package

2. 8455986 - Mosfet package

3. 8183607 - Semiconductor device

4. 7985991 - MOSFET package

5. 7400002 - MOSFET package

6. 7394146 - MOSFET package

7. 7342267 - MOSFET package

8. 7332757 - MOSFET package

9. 6774466 - Semiconductor device

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
12/5/2025
Loading…