Growing community of inventors

Yokohama, Japan

Yoshitune Iitsuka

Average Co-Inventor Count = 1.00

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 = 27

Yoshitune IitsukaYoshitune Iitsuka (5 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Vertex Standard Company, Ltd. (4 from 19 patents)

2. Vertex Standard Usa, Inc. (1 from 2 patents)


5 patents:

1. 6981623 - Mechanism for engaging portable equipment against a belt clip

2. 6722539 - Mechanism for engaging portable equipment against a belt clip

3. 6702506 - Belt clip for portable electronic equipment

4. 6395980 - Battery case

5. 6364271 - Structure for installing an electronic apparatus

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as of
12/11/2025
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