P

Inventor

YAMASAKI YASUHIRO

JP63 patents
⚠️ This page may combine multiple inventors who share the name “YAMASAKI YASUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ORIENT CHEMICAL IND

19 patents
US6242648B1Jun 5, 2001

Process for preparing triarylamine dimer

ORIENT CHEMICAL IND19 citations92
US5739319AApr 14, 1998

Phthalocyanine or naphthalocyanine derivative

ORIENT CHEMICAL IND26 citations92
US6743283B2Jun 1, 2004

Blue luminous ink composition

ORIENT CHEMICAL IND13 citations80
US5725984AMar 10, 1998

Omega-oxo-aluminum phthalocyanine dimer having novel polymorph and electrophotographic photoreceptor prepared by using the same

ORIENT CHEMICAL IND6 citations73
US6093514AJul 25, 2000

(μ)-oxo-aluminum/gallium phthalocyanine dimer

ORIENT CHEMICAL IND7 citations72
US5981745ANov 9, 1999

μ-oxo-gallium phthalocyanine dimer having novel polymorph and electrophotographic photoreceptor prepared by using the same

ORIENT CHEMICAL IND5 citations72
US5910384AJun 8, 1999

μ -oxo-galliuim phthalocyanine dimer having novel polymorph and electrophotographic photoreceptor prepared by using the same

ORIENT CHEMICAL IND8 citations72
US5883245AMar 16, 1999

Deodorizer consisting of metallophthalocyanine and process for preparing metallophthalocyanine

ORIENT CHEMICAL IND6 citations71
US6846350B2Jan 25, 2005

Red luminous ink composition

ORIENT CHEMICAL IND8 citations69
US6811940B2Nov 2, 2004

Mixed substance of triphenylamine dimers

ORIENT CHEMICAL IND10 citations69
US5064951ANov 12, 1991

Naphthalocyanine compound and production thereof

ORIENT CHEMICAL IND4 citations63
US6150518ANov 21, 2000

Process for preparing χ-form metal free phthalocyanine

ORIENT CHEMICAL IND3 citations62
US6106985AAug 22, 2000

Layered-form electrophotographic photoreceptor

ORIENT CHEMICAL IND2 citations62
US7462711B2Dec 9, 2008

U-oxo crosslinked dissimilar metal phthalocyanine compound and process for selectively producing the same

ORIENT CHEMICAL IND6 citations61
US7163772B2Jan 16, 2007

Organic electrophotographic photo-receptor

ORIENT CHEMICAL IND6 citations61
US7087747B2Aug 8, 2006

μ-Oxo bridged heterometal compound and selective production method thereof

ORIENT CHEMICAL IND2 citations61
US7598010B2Oct 6, 2009

Triarylamine dimer derivative having amorphous phase

ORIENT CHEMICAL IND5 citations58
US5149847ASep 22, 1992

Naphthalocyanine compound and production thereof

ORIENT CHEMICAL IND1 citations52
US8053570B2Nov 8, 2011

Method for producing α-form titanylphthalocyanine and electrophotographic photoreceptor comprising α-form titanylphthalocyanine

ORIENT CHEMICAL IND0 citations51

NEC CORP

6 patents

TOYOTA MOTOR CO LTD

6 patents

HONDA MOTOR CO LTD

5 patents

TOMY CO LTD

3 patents

KOKUSAI DENSHIN DENWA CO LTD

3 patents

SUMITOMO ELECTRIC INDUSTRIES

3 patents

YAMASAKI YASUHIRO

2 patents

UCHIDA SATOSHI

1 patent

SEKISUI PLASTICS

1 patent

MORI TOMOHIRO

1 patent

Showing the top 50 of 63 patents by PatentIndex Score.