Growing community of inventors

Higashiosaka, Japan

Tetsuya Ishikawa

Average Co-Inventor Count = 2.33

ph-index = 2

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 = 10

Tetsuya IshikawaShinsaku Shimizu (7 patents)Tetsuya IshikawaFumitaka Ishiguro (1 patent)Tetsuya IshikawaKoichi Numata (1 patent)Tetsuya IshikawaShigeki Noda (1 patent)Tetsuya IshikawaTetsuya Ishikawa (7 patents)Shinsaku ShimizuShinsaku Shimizu (23 patents)Fumitaka IshiguroFumitaka Ishiguro (5 patents)Koichi NumataKoichi Numata (5 patents)Shigeki NodaShigeki Noda (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Daito Electric Machine Industry Company Limited (7 from 27 patents)


7 patents:

1. 11065175 - Leg massager

2. 10610442 - Massage device

3. 10576012 - Massaging apparatus

4. 10426693 - Massage machine

5. 9173804 - Lower-leg massage device

6. 9107508 - Chair-type massage apparatus

7. 8690239 - Chair-type massage apparatus

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as of
12/11/2025
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