Growing community of inventors

Tokyo, Japan

Kiyotaka Ishikawa

Average Co-Inventor Count = 4.66

ph-index = 1

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 = 3

Kiyotaka IshikawaMasaaki Tonogai (4 patents)Kiyotaka IshikawaKazuyoshi Enomoto (3 patents)Kiyotaka IshikawaTakuro Sawada (3 patents)Kiyotaka IshikawaShin Kimura (3 patents)Kiyotaka IshikawaIsao Okuyama (2 patents)Kiyotaka IshikawaTakeshi Igarashi (1 patent)Kiyotaka IshikawaTsubasa Umeki (1 patent)Kiyotaka IshikawaKiyotaka Ishikawa (4 patents)Masaaki TonogaiMasaaki Tonogai (6 patents)Kazuyoshi EnomotoKazuyoshi Enomoto (19 patents)Takuro SawadaTakuro Sawada (6 patents)Shin KimuraShin Kimura (6 patents)Isao OkuyamaIsao Okuyama (10 patents)Takeshi IgarashiTakeshi Igarashi (59 patents)Tsubasa UmekiTsubasa Umeki (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sony Interactive Entertainment Inc. (4 from 3,048 patents)


4 patents:

1. 12138531 - Inputting device

2. 11813518 - Information processing system, controller apparatus, information processing apparatus, and program

3. 11714488 - Controller apparatus, method of controlling controller apparatus, and program

4. 11429187 - Controller apparatus, control method thereof, and program

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as of
12/5/2025
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