Growing community of inventors

Ibaraki, Japan

Yoshiko Kumazawa

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 = 2

Yoshiko Kumazawa ↔ Kuniyoshi Onishi (1 patent)Yoshiko Kumazawa ↔ Yutaka Higashimura (1 patent)Yoshiko KumazawaYoshiko Kumazawa (1 patent)Kuniyoshi OnishiKuniyoshi Onishi (2 patents)Yutaka HigashimuraYutaka Higashimura (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. San-ei Gen F.f.i., Inc. (1 from 47 patents)


1 patent:

1. 6379729 - Food containing water-soluble colorant

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as of
12/20/2025
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