HY

Hiroyuki Yokoyama

SL Shiseido Company, Limited: 5 patents #141 of 1,112Top 15%
SC Sumitomo Chemical: 1 patents #2,469 of 4,033Top 65%
Overall (All Time): #861,975 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
8173109 Eyelash cosmetic Atsumi Mori, Hideki Takahashi, Satoshi Tomomasa 2012-05-08
8092834 Composite powders and skin preparations for external use containing the same Norinobu Yoshikawa, Kenichi Sakuma, Katsuki Ogawa, Satoshi Tomomasa, Eriko Kawai +1 more 2012-01-10
7381415 Composite powder and cosmetic containing the same Satoshi Tomomasa, Kenichi Sakuma, Norinobu Yoshikawa, Eriko Kawai, Shigeyuki Ogawa 2008-06-03
5182103 Magnesium aluminometasilicate coated composite powder and use thereof Toshihiko Nakane, Masumi Koishi, Hiroshi Fukui, Yutaka Okunuki, Yoshio Yahata +13 more 1993-01-26
5122418 Composite powder and production process Toshihiko Nakane, Masumi Koishi, Hiroshi Fukui, Yutaka Okunuki, Yoshio Yahata +11 more 1992-06-16
4594182 Indium tin oxide sol composition Tadanori Hashimoto, Hiroshi Yoshitake, Akiko Nakazono 1986-06-10