Growing community of inventors

Kyoto, Japan

Katsumi Samejima

Average Co-Inventor Count = 2.00

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 = 102

Katsumi SamejimaNobuhisa Kumamoto (2 patents)Katsumi SamejimaKatsumi Samejima (2 patents)Nobuhisa KumamotoNobuhisa Kumamoto (13 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Rohm Co., Ltd. (2 from 6,017 patents)


2 patents:

1. 7329562 - Process of producing semiconductor chip with surface interconnection at bump

2. 6707159 - Semiconductor chip and production process therefor

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as of
1/12/2026
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