Growing community of inventors

Kibie, Japan

Sumie Koyasu

Average Co-Inventor Count = 4.00

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 = 2

Sumie Koyasu ↔ Nobuyoshi Fujikawa (1 patent)Sumie Koyasu ↔ Seiichi Hirahara (1 patent)Sumie Koyasu ↔ Tsuguo Koyasu (1 patent)Sumie KoyasuSumie Koyasu (1 patent)Nobuyoshi FujikawaNobuyoshi Fujikawa (14 patents)Seiichi HiraharaSeiichi Hirahara (2 patents)Tsuguo KoyasuTsuguo Koyasu (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kyocera Corporation (1 from 6,656 patents)


1 patent:

1. 5432135 - Dielectric ceramic composition for high frequency

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as of
12/19/2025
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