Growing community of inventors

Saitama, Japan

Takao Ishikawa

Average Co-Inventor Count = 1.90

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 = 30

Takao IshikawaNaoki Takada (5 patents)Takao IshikawaFumiaki Nakashima (5 patents)Takao IshikawaYasuyuki Ito (4 patents)Takao IshikawaTakahiko Nagasawa (4 patents)Takao IshikawaTomohito Okaji (2 patents)Takao IshikawaTsutomu Fujikake (1 patent)Takao IshikawaJunpei Yoshikawa (1 patent)Takao IshikawaShingo Takei (1 patent)Takao IshikawaMinoru Ueno (1 patent)Takao IshikawaSatoshi Shoji (1 patent)Takao IshikawaTakao Ishikawa (13 patents)Naoki TakadaNaoki Takada (98 patents)Fumiaki NakashimaFumiaki Nakashima (6 patents)Yasuyuki ItoYasuyuki Ito (14 patents)Takahiko NagasawaTakahiko Nagasawa (7 patents)Tomohito OkajiTomohito Okaji (5 patents)Tsutomu FujikakeTsutomu Fujikake (12 patents)Junpei YoshikawaJunpei Yoshikawa (9 patents)Shingo TakeiShingo Takei (5 patents)Minoru UenoMinoru Ueno (3 patents)Satoshi ShojiSatoshi Shoji (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Honda Motor Co., Ltd. (7 from 21,927 patents)

2. Clarion Co (5 from 1,057 patents)

3. Tachi-S Co., Ltd. (3 from 576 patents)


13 patents:

1. D1102330 - Automobile, toy replica and/or other replicas

2. D1100281 - Front combination lamp for an automobile

3. D1098027 - Electrical connector

4. D1063737 - Front bumper for automobile

5. D1053408 - Front combination lamp for an automobile

6. D1005531 - Rear combination lamp for an automobile

7. 10887702 - Loudspeaker

8. 10696201 - Headrest and vehicle seat

9. 10328831 - Acoustic device

10. 10064496 - Head rest device

11. 9981613 - Headrest and vehicle seat with integrated speakers

12. 9975459 - Headrest device and sound collecting device

13. D626669 - Front combination lamp for automobiles

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as of
1/5/2026
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