Growing community of inventors

Ibaraki-ken, Japan

Kyoko Tsumura

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

Kyoko TsumuraYoshifumi Watanabe (1 patent)Kyoko TsumuraKazuyuki Ando (19 patents)Kyoko TsumuraManami Shimizu (1 patent)Kyoko TsumuraKyoko Tsumura (1 patent)Yoshifumi WatanabeYoshifumi Watanabe (21 patents)Kazuyuki AndoKazuyuki Ando (19 patents)Manami ShimizuManami Shimizu (13 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Riso Kagaku Corporation (1 from 1,074 patents)


1 patent:

1. 9212289 - Non-aqueous pigment ink

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1/9/2026
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