Inventor
YAMAZAKI JUNICHI
JP49 patents
⚠️ This page may combine multiple inventors who share the name “YAMAZAKI JUNICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
12 patentsUS6534227B2Mar 18, 2003
Photoreceptor, method of evaluating the photoreceptor, method of producing the photoreceptor, and image formation apparatus using the photoreceptor
RICOH KK24 citations92
US4758486AJul 19, 1988
Endless belt shaped electrophotographic photoconductor
RICOH KK34 citations92
US6649313B2Nov 18, 2003
Photoreceptor, method of evaluating a photoreceptor, and method of producing the photoreceptor
RICOH KK13 citations83
US7046943B2May 16, 2006
Image forming apparatus and charging device therefor receiving AC and DC voltages
RICOH KK6 citations74
US6328800B1Dec 11, 2001
Dip coating apparatus
RICOH KK8 citations74
US6296704B1Oct 2, 2001
Dip coating apparatus
RICOH KK11 citations74
US6983840B2Jan 10, 2006
Package and method of forming the package
RICOH KK8 citations71
US7280783B2Oct 9, 2007
Electrophotographic photoreceptor and method of recycling the electrophotographic photoreceptor
RICOH KK6 citations68
US7263876B2Sep 4, 2007
Apparatus and method of detecting surface convexity of members, and method of producing the members
RICOH KK5 citations63
US6925275B2Aug 2, 2005
Image forming apparatus and charging device therefor
RICOH KK4 citations63
US7334383B2Feb 26, 2008
Package and method of forming the package
RICOH KK1 citations50
US7356280B2Apr 8, 2008
Electrophotographic photoreceptor and method of recycling the electrophotographic photoreceptor
RICOH KK0 citations46
TDK CORP
12 patentsUS7498725B2Mar 3, 2009
Piezoelectric ceramic composition and laminated piezoelectric element
TDK CORP13 citations80
US6413443B1Jul 2, 2002
Piezoelectric ceramic and piezoelectric device
TDK CORP7 citations72
US11078123B2Aug 3, 2021
Metal oxynitride thin film, process for producing metal oxynitride thin film, and capacitor element
TDK CORP0 citations60
US11999616B2Jun 4, 2024
Dielectric thin film, capacitor element, and electronic circuit board
TDK CORP0 citations59
US7528531B2May 5, 2009
Piezoelectric ceramic composition and laminated piezoelectric element
TDK CORP4 citations59
US12586731B2Mar 24, 2026
Amorphous dielectric, capacitor element, and electronic device
TDK CORP0 citations57
US10707018B2Jul 7, 2020
Polycrystalline dielectric thin film and capacitor element
TDK CORP0 citations51
US10611693B2Apr 7, 2020
Polycrystalline dielectric thin film and capacitor element
TDK CORP0 citations51
US9382163B2Jul 5, 2016
Amorphous dielectric film and electronic component
TDK CORP0 citations51
US11532435B2Dec 20, 2022
Thin film capacitor and electronic circuit board
TDK CORP0 citations49
US7507347B2Mar 24, 2009
Piezoelectric ceramic composition and laminated piezoelectric element
TDK CORP1 citations49
US9537083B2Jan 3, 2017
Piezoelectric composition and piezoelectric device
TDK CORP0 citations48
HITACHI LTD
10 patentsUS4952839AAug 28, 1990
Photoconductive device and method of operating the same
HITACHI LTD28 citations92
US4888521ADec 19, 1989
Photoconductive device and method of operating the same
HITACHI LTD26 citations92
US5233265AAug 3, 1993
Photoconductive imaging apparatus
HITACHI LTD37 citations91
US4980736ADec 25, 1990
Electric conversion device
HITACHI LTD15 citations73
US4900975AFeb 13, 1990
Target of image pickup tube having an amorphous semiconductor laminate
HITACHI LTD16 citations73
US4884011ANov 28, 1989
Light-detecting device
HITACHI LTD3 citations63
US5070272ADec 3, 1991
Photoconductive device and method of operating same
HITACHI LTD2 citations62
US5218264AJun 8, 1993
Image pick-up tube and apparatus having the same
HITACHI LTD2 citations61
US4883562ANov 28, 1989
Method of making a photosensor
HITACHI LTD2 citations61
US5021705AJun 4, 1991
Method of fabricating an image pick-up tube and target section used therewith
HITACHI LTD5 citations60
FUJITSU LTD
4 patentsUS5255266AOct 19, 1993
ATM switching unit
FUJITSU LTD137 citations96
US5594717AJan 14, 1997
Call admission control in ATM network
FUJITSU LTD46 citations92
US5295177AMar 15, 1994
Automatic terminal start/stop verification system using call processing simulator
FUJITSU LTD4 citations61
US9678849B2Jun 13, 2017
Processing method, processing apparatus, and recording medium to determine operational state of processing element
FUJITSU LTD0 citations31