YT

Yoichiro Takekoshi

KC Kyowa Hakko Kogyo Co.: 5 patents #189 of 943Top 25%
📍 Tsuchiura, NY: #2 of 2 inventorsTop 100%
Overall (All Time): #1,038,935 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6692754 Cosmetic composition Yutaka Makimoto, Asako Kobayashi, Toshihiro Sakakibara, Chiemi Takaboshi, Ayako Kamimura +2 more 2004-02-17
6517846 Cosmetic composition 2003-02-11
6497889 Cosmetics Tomoya Takahashi, Toshio Oonuma 2002-12-24
6190679 Cosmetic composition Ichiro Matsuura 2001-02-20
5380359 Cosmetics based on naturally derived melanin-coated pigments Shinkichi Honda, Yoichiro Arai 1995-01-10