Growing community of inventors

Kisarazu, Japan

Kumiko Yamada

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 = 5

Kumiko Yamada ↔ Takashi Matsuo (1 patent)Kumiko Yamada ↔ Kazuyuki Yahagi (1 patent)Kumiko Yamada ↔ Yasuo Suzuki (1 patent)Kumiko YamadaKumiko Yamada (1 patent)Takashi MatsuoTakashi Matsuo (62 patents)Kazuyuki YahagiKazuyuki Yahagi (21 patents)Yasuo SuzukiYasuo Suzuki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kao Corporation (1 from 3,601 patents)


1 patent:

1. 5679330 - Shampoo composition

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as of
12/9/2025
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