Growing community of inventors

Yokohama, Japan

Tsutomu Souma

Average Co-Inventor Count = 7.00

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 = 8

Tsutomu Souma ↔ Jun Suzuki (1 patent)Tsutomu Souma ↔ Masahiro Tajima (1 patent)Tsutomu Souma ↔ Eriko Takeoka (1 patent)Tsutomu Souma ↔ Chika Hamada (1 patent)Tsutomu Souma ↔ Masashi Ogou (1 patent)Tsutomu Souma ↔ Yosuke Nakazawa (1 patent)Tsutomu SoumaTsutomu Souma (1 patent)Jun SuzukiJun Suzuki (34 patents)Masahiro TajimaMasahiro Tajima (16 patents)Eriko TakeokaEriko Takeoka (6 patents)Chika HamadaChika Hamada (3 patents)Masashi OgouMasashi Ogou (2 patents)Yosuke NakazawaYosuke Nakazawa (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Shiseido Company, Limited (1 from 1,007 patents)


1 patent:

1. 6139852 - Extract composition as hair growth phase extender

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as of
12/7/2025
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