Growing community of inventors

Ito, Japan

Shuji Koyama

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 = 22

Shuji KoyamaSatoshi Kitahara (2 patents)Shuji KoyamaTsugio Shiozaki (2 patents)Shuji KoyamaShuji Koyama (2 patents)Satoshi KitaharaSatoshi Kitahara (19 patents)Tsugio ShiozakiTsugio Shiozaki (15 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tokyo Electric Co. (2 from 492 patents)


2 patents:

1. 5238314 - Transfer printer with ribbon lock

2. 5180236 - Transfer printer

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idiyas.com
as of
12/16/2025
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