Growing community of inventors

Tokyo, Japan

Seiji Matsuo

Average Co-Inventor Count = 3.00

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 = 9

Seiji MatsuoMasahiro Hayashi (2 patents)Seiji MatsuoTamio Iwamoto (2 patents)Seiji MatsuoSeiji Matsuo (2 patents)Masahiro HayashiMasahiro Hayashi (12 patents)Tamio IwamotoTamio Iwamoto (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Iwatsu Electric Company Ltd. (2 from 190 patents)


2 patents:

1. 6067907 - Fixing device for wet type master sheet making apparatus for making

2. 5970872 - Fixing apparatus for a wet-type plate making machine

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as of
12/20/2025
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