Growing community of inventors

Tokyo, Japan

Yumiko Yamamoto

Average Co-Inventor Count = 1.33

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 = 7

Yumiko YamamotoKoji Okubo (1 patent)Yumiko YamamotoTakashi Enoki (1 patent)Yumiko YamamotoTakahiro Harada (1 patent)Yumiko YamamotoAtsushi Izumi (1 patent)Yumiko YamamotoMasanori Tanahashi (1 patent)Yumiko YamamotoYumiko Yamamoto (7 patents)Koji OkuboKoji Okubo (26 patents)Takashi EnokiTakashi Enoki (25 patents)Takahiro HaradaTakahiro Harada (15 patents)Atsushi IzumiAtsushi Izumi (8 patents)Masanori TanahashiMasanori Tanahashi (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kao Corporation (5 from 3,604 patents)

2. Sumitomo Bakelite Company Limited (1 from 615 patents)

3. Ps4 Luxco S.a.r.l. (1 from 377 patents)


7 patents:

1. 9694076 - Vesicle composition

2. 9161896 - Cosmetic

3. 8929129 - Semiconductor device

4. 8586065 - Oil-in-water emulsified cosmetic composition

5. 8178584 - Water-in oil emulsified composition

6. 7846969 - Ceramide emulsions

7. 7652125 - Resin composition, polyimide resin composition, polybenzoxazole resin composition, varnish, resin film and semiconductor device using the same

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as of
1/8/2026
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