Inventor
MATSUSHIMA YOSHIMASA
JP23 patents
⚠️ This page may combine multiple inventors who share the name “MATSUSHIMA YOSHIMASA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TAKASAGO PERFUMERY CO LTD
21 patentsUS7442797B2Oct 28, 2008
Platinum complex and light emitting device
TAKASAGO PERFUMERY CO LTD162 citations98
US6083651AJul 4, 2000
Phenothiazine or phenoxazine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor
TAKASAGO PERFUMERY CO LTD54 citations96
US5942615AAug 24, 1999
Phenothiazine or phenoxazine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor
TAKASAGO PERFUMERY CO LTD73 citations96
US6172264B1Jan 9, 2001
Triphenylamine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor
TAKASAGO PERFUMERY CO LTD19 citations92
US5989765ANov 23, 1999
Triphenylamine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor
TAKASAGO PERFUMERY CO LTD24 citations92
US5567560AOct 22, 1996
Triphenylamine derivative charge-transporting material containing electrophotographic photoreceptor
TAKASAGO PERFUMERY CO LTD23 citations92
US6150065ANov 21, 2000
Electrophotographic photoreceptor
TAKASAGO PERFUMERY CO LTD16 citations83
US5910610AJun 8, 1999
Triphenylamine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor
TAKASAGO PERFUMERY CO LTD13 citations82
US5882813AMar 16, 1999
Electrophotographic photoreceptor
TAKASAGO PERFUMERY CO LTD15 citations74
US5736284AApr 7, 1998
Carbazole derivative charge transporting material using the same and electrophotographic photoreceptor
TAKASAGO PERFUMERY CO LTD10 citations74
US5573878ANov 12, 1996
Triphenylamine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor
TAKASAGO PERFUMERY CO LTD12 citations74
US5486441AJan 23, 1996
Electrophotographic photoreceptor containing 1,4-bis(4,4-diphenyl-1,3-butadienyl)benzene derivative
TAKASAGO PERFUMERY CO LTD10 citations74
US5229238AJul 20, 1993
Electrophotographic photoreceptor comprising a benzodithiafulvene derivative charge transport material
TAKASAGO PERFUMERY CO LTD11 citations74
US6228547B1May 8, 2001
Bis(3,4-methylenedioxyphenylamino) derivatives and electrophotographic photoreceptor containing the derivatives
TAKASAGO PERFUMERY CO LTD11 citations73
US5521042AMay 28, 1996
1,4-bis(2',2'-diphenylvinyl)benzene derivative and charge transporting material and electrophotographic photoreceptor using the same
TAKASAGO PERFUMERY CO LTD2 citations63
US11185851B2Nov 30, 2021
Polymer-supported metal
TAKASAGO PERFUMERY CO LTD0 citations62
US6093345AJul 25, 2000
Optically active compound, liquid crystal composition containing the same, and liquid crystal electro-optic element using the same
TAKASAGO PERFUMERY CO LTD2 citations61
US11377415B2Jul 5, 2022
Method for converting N,N-dialkylamide compound into ester compound using complex of fourth-period transition metal as catalyst
TAKASAGO PERFUMERY CO LTD0 citations53
US5750785AMay 12, 1998
1,4-bis(2', 2'-diphenylvinyl)benzene derivative and charge transporting material and electrophotographic photoreceptor using the same
TAKASAGO PERFUMERY CO LTD0 citations52
US5463128AOct 31, 1995
1,4-bis(4,4-diphenyl-1,3-butadienyl)benzene derivative and electrophotographic photoreceptor using the same
TAKASAGO PERFUMERY CO LTD1 citations52
US9611279B2Apr 4, 2017
Zinc complex
TAKASAGO PERFUMERY CO LTD0 citations42