Growing community of inventors

Tokyo, Japan

Yasushi Ishikawa

Average Co-Inventor Count = 2.10

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 = 175

Yasushi IshikawaFumio Tomono (2 patents)Yasushi IshikawaTadashi Suzuki (1 patent)Yasushi IshikawaJun Ishii (1 patent)Yasushi IshikawaKeisuke Watanabe (1 patent)Yasushi IshikawaYuzo Maruta (1 patent)Yasushi IshikawaMichihiro Yamazaki (1 patent)Yasushi IshikawaKoichi Kimura (1 patent)Yasushi IshikawaTetsuya Fujita (1 patent)Yasushi IshikawaAkito Nagai (1 patent)Yasushi IshikawaYasushi Ishikawa (7 patents)Fumio TomonoFumio Tomono (2 patents)Tadashi SuzukiTadashi Suzuki (123 patents)Jun IshiiJun Ishii (34 patents)Keisuke WatanabeKeisuke Watanabe (27 patents)Yuzo MarutaYuzo Maruta (7 patents)Michihiro YamazakiMichihiro Yamazaki (7 patents)Koichi KimuraKoichi Kimura (7 patents)Tetsuya FujitaTetsuya Fujita (3 patents)Akito NagaiAkito Nagai (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Seikosha Co., Ltd. (4 from 696 patents)

2. Mitsubishi Electric Corporation (2 from 15,863 patents)

3. Mitsubishi Denki Kabushiki Kaisha (1 from 21,351 patents)


7 patents:

1. 8868431 - Recognition dictionary creation device and voice recognition device

2. 8099290 - Voice recognition device

3. 6324513 - Spoken dialog system capable of performing natural interactive access

4. 5382103 - Multiple color ink ribbon cassette

5. 5321432 - Image forming apparatus with resolution control

6. 5072690 - Developing device of electrophotographic printer

7. 5069437 - Duplex printing apparatus

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idiyas.com
as of
12/11/2025
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