Growing community of inventors

Nagano, Japan

Yoshitatsu Okiyama

Average Co-Inventor Count = 5.00

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 = 23

Yoshitatsu Okiyama ↔ Toshihiro Kumano (2 patents)Yoshitatsu Okiyama ↔ Yoshiyuki Fujiyama (2 patents)Yoshitatsu Okiyama ↔ Akira Chiku (1 patent)Yoshitatsu Okiyama ↔ Sumio Ogawara (1 patent)Yoshitatsu Okiyama ↔ Hidemi Watanabe (1 patent)Yoshitatsu Okiyama ↔ Minoru Terakado (1 patent)Yoshitatsu OkiyamaYoshitatsu Okiyama (2 patents)Toshihiro KumanoToshihiro Kumano (8 patents)Yoshiyuki FujiyamaYoshiyuki Fujiyama (4 patents)Akira ChikuAkira Chiku (2 patents)Sumio OgawaraSumio Ogawara (2 patents)Hidemi WatanabeHidemi Watanabe (1 patent)Minoru TerakadoMinoru Terakado (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Matsushita Graphic Communication Systems, Inc. (2 from 191 patents)


2 patents:

1. D304579 - Facsimile transceiver

2. D288093 - Facsimile transceiver

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as of
12/16/2025
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