Inventor
AKIMOTO TAKAYUKI
JP29 patents
⚠️ This page may combine multiple inventors who share the name “AKIMOTO TAKAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI CHEMICAL CO LTD
14 patentsUS5268485ADec 7, 1993
Naphthalocyanine derivatives, production thereof and optical recording medium using the same
HITACHI CHEMICAL CO LTD18 citations82
US5217856AJun 8, 1993
Tetraazaporphin, process for producing the same, as well as optical recording media using the same and production processes thereof
HITACHI CHEMICAL CO LTD14 citations74
US5075203ADec 24, 1991
Naphthalocyanine derivatives, production thereof and optical recording medium using the same
HITACHI CHEMICAL CO LTD7 citations74
US5034309AJul 23, 1991
Naphthalocyanine derivatives and their use in optical recording medium
HITACHI CHEMICAL CO LTD13 citations74
US5938980AAug 17, 1999
Phthalocyanine composition, process for preparing the same, electrophotographic photoreceptor using the same and coating solution for charge generation layer containing the same
HITACHI CHEMICAL CO LTD6 citations73
US5837411ANov 17, 1998
Phthalocyanine electrophotographic photoreceptor for charge generation layer
HITACHI CHEMICAL CO LTD7 citations73
US5626999AMay 6, 1997
Phthalocyanine composition, process for preparing the same and electrophotographic photoreceptor using the same
HITACHI CHEMICAL CO LTD7 citations73
US5449581ASep 12, 1995
Phthalocyanine composition, process for preparing the same, electrophotographic photoreceptor using the same and coating solution for charge generation layer containing the same
HITACHI CHEMICAL CO LTD9 citations73
US5304445AApr 19, 1994
Phthalocyanine composition, process for preparing the same and electrophotographic photoreceptor using the same
HITACHI CHEMICAL CO LTD10 citations73
US5534375AJul 9, 1996
Composition for forming charge transport layer and electrophotographic member containing alkoxybenzene
HITACHI CHEMICAL CO LTD6 citations72
US5110968AMay 5, 1992
Naphthalocyanine derivatives, production thereof, optical recording medium using the same, and production thereof
HITACHI CHEMICAL CO LTD4 citations63
US5039600AAug 13, 1991
Naphthalocyanine derivatives, production thereof, optical recording medium using the same, and production thereof
HITACHI CHEMICAL CO LTD5 citations63
US5958637ASep 28, 1999
Electrophotographic photoreceptor and coating solution for production of charge transport layer
HITACHI CHEMICAL CO LTD6 citations62
US5496672AMar 5, 1996
Coating solution for charge generation layer and electrophotographic photoreceptor using same
HITACHI CHEMICAL CO LTD6 citations62
PIONEER CORP
8 patentsUS6813508B1Nov 2, 2004
Apparatus and method for mobile communication
PIONEER CORP38 citations92
US6546258B1Apr 8, 2003
Communication apparatus and communication method
PIONEER CORP19 citations92
US6980814B2Dec 27, 2005
Mobile communication system with mobile station position detection
PIONEER CORP15 citations84
US6701468B1Mar 2, 2004
Code error correcting circuit, code error correcting method, communicating apparatus and communicating method
PIONEER CORP7 citations74
US7046698B1May 16, 2006
Communicating apparatus and communicating method
PIONEER CORP2 citations62
US7043440B2May 9, 2006
Play back apparatus
PIONEER CORP6 citations62
US6731675B2May 4, 2004
Receiving device for spread spectrum communication system
PIONEER CORP5 citations62
US7075566B2Jul 11, 2006
Video display apparatus
PIONEER CORP0 citations39
HITACHI LTD
3 patentsUS5484685AJan 16, 1996
Naphthalocyanine derivatives, production thereof, optical recording medium using the same, and production thereof
HITACHI LTD23 citations92
US5214188AMay 25, 1993
2,3-dicyanonaphthalene derivatives
HITACHI LTD7 citations74
US5233089AAug 3, 1993
Enamine derivatives
HITACHI LTD2 citations60