Growing community of inventors

Sumida-ku, Japan

Yoshimasa Tate

Average Co-Inventor Count = 3.43

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

Yoshimasa Tate ↔ Masaaki Tsukase (1 patent)Yoshimasa Tate ↔ Osamu Takiguchi (1 patent)Yoshimasa Tate ↔ Koji Yui (1 patent)Yoshimasa Tate ↔ Christine Cajan (9 patents)Yoshimasa Tate ↔ Sabine Schmid (6 patents)Yoshimasa Tate ↔ Michiko Asami (1 patent)Yoshimasa Tate ↔ Miyuki Hayama (1 patent)Yoshimasa Tate ↔ Kristin Burgdorf (0 patent)Yoshimasa TateYoshimasa Tate (2 patents)Masaaki TsukaseMasaaki Tsukase (25 patents)Osamu TakiguchiOsamu Takiguchi (15 patents)Koji YuiKoji Yui (10 patents)Christine CajanChristine Cajan (9 patents)Sabine SchmidSabine Schmid (6 patents)Michiko AsamiMichiko Asami (2 patents)Miyuki HayamaMiyuki Hayama (1 patent)Kristin BurgdorfKristin Burgdorf (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Kao Corporation (2 from 3,603 patents)

2. Fujifilm Corporation (1 from 16,115 patents)


2 patents:

1. 8574560 - Hair styling method

2. 7824449 - Hair dye composition

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as of
1/3/2026
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