Inventor
MIYOSHI RYOTA
JP9 patents
⚠️ This page may combine multiple inventors who share the name “MIYOSHI RYOTA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MIYOSHI KASEI CO LTD
7 patentsUS4863800ASep 5, 1989
Surface-treated pigment material
MIYOSHI KASEI CO LTD54 citations95
US4622074ANov 11, 1986
Pigments and extender pigments which are surface-treated with hydrogenated lecithin, and cosmetics containing the same
MIYOSHI KASEI CO LTD58 citations95
US4606914AAug 19, 1986
Cosmetic composition
MIYOSHI KASEI CO LTD73 citations95
US5458681AOct 17, 1995
Organosilicon-treated pigment, process for production thereof, and cosmetic made therewith
MIYOSHI KASEI CO LTD41 citations92
US5368639ANov 29, 1994
Organosilicon-treated pigment, process for production thereof, and cosmetic made therewith
MIYOSHI KASEI CO LTD37 citations92
US4919922AApr 24, 1990
Polyolefin-treated pigment and cosmetics containing the same
MIYOSHI KASEI CO LTD26 citations90
US5091013AFeb 25, 1992
Moisture holding pigment and a cosmetic containing such a pigment
MIYOSHI KASEI CO LTD8 citations71