Growing community of inventors

Hiratsuka, Japan

Eiko Tamai

Average Co-Inventor Count = 3.89

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 = 8

Eiko TamaiKazuhiko Tokoro (4 patents)Eiko TamaiMinoru Hanada (3 patents)Eiko TamaiKenya Ishida (2 patents)Eiko TamaiHiroyuki Matsuda (2 patents)Eiko TamaiYoichiro Nishizawa (2 patents)Eiko TamaiKatsuyoshi Tsuchiya (2 patents)Eiko TamaiToshimitsu Hagiwara (1 patent)Eiko TamaiKenichi Yamamoto (1 patent)Eiko TamaiShinya Watanabe (1 patent)Eiko TamaiTakashi Aida (1 patent)Eiko TamaiTetsuro Yamasaki (1 patent)Eiko TamaiMisao Yagi (1 patent)Eiko TamaiHiroyasu Kumamoto (1 patent)Eiko TamaiEiko Tamai (6 patents)Kazuhiko TokoroKazuhiko Tokoro (8 patents)Minoru HanadaMinoru Hanada (8 patents)Kenya IshidaKenya Ishida (47 patents)Hiroyuki MatsudaHiroyuki Matsuda (41 patents)Yoichiro NishizawaYoichiro Nishizawa (2 patents)Katsuyoshi TsuchiyaKatsuyoshi Tsuchiya (2 patents)Toshimitsu HagiwaraToshimitsu Hagiwara (58 patents)Kenichi YamamotoKenichi Yamamoto (48 patents)Shinya WatanabeShinya Watanabe (36 patents)Takashi AidaTakashi Aida (22 patents)Tetsuro YamasakiTetsuro Yamasaki (20 patents)Misao YagiMisao Yagi (13 patents)Hiroyasu KumamotoHiroyasu Kumamoto (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Takasago International Corporation (6 from 508 patents)


6 patents:

1. 7576125 - Melanogenesis inhibitor and skin preparation containing the same

2. 6759557 - Melanin production inhibitors and skincare products containing such inhibitors

3. 6440400 - Trimethylcylohexane derivatives and melanin-formation inhibitors and perfumeholding agents with the use of the same

4. 6384074 - Cell growth activating composition containing compound having labdane structure

5. 6313214 - Melanin inhibiting and cell growth activating compositions containing compounds having labdane structure

6. 6280754 - Dermal topical formulations

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12/7/2025
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