Growing community of inventors

Ehime, Japan

Kiyomasa Koukami

Average Co-Inventor Count = 3.00

ph-index = 1

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 = 0

Kiyomasa KoukamiKei Yamauchi (2 patents)Kiyomasa KoukamiEiji Kouyama (1 patent)Kiyomasa KoukamiNoboru Itagaki (1 patent)Kiyomasa KoukamiKiyomasa Koukami (2 patents)Kei YamauchiKei Yamauchi (6 patents)Eiji KouyamaEiji Kouyama (1 patent)Noboru ItagakiNoboru Itagaki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sumitomo Heavy Industries, Ltd. (2 from 1,186 patents)


2 patents:

1. 11998969 - Forming system

2. 11752536 - Expansion forming apparatus

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1/23/2026
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