Inventor
MURATA JUN
US90 patents
⚠️ This page may combine multiple inventors who share the name “MURATA JUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
21 patentsUS7962068B2Jun 14, 2011
Charging member, process cartridge and electrophotographic apparatus
CANON KK48 citations93
US6243552B1Jun 5, 2001
Charging member and image forming apparatus using the same
CANON KK21 citations93
US5766753AJun 16, 1998
Elastic member for electrophotography and electrophotographic device using the same
CANON KK20 citations93
US5751801AMay 12, 1998
Charging member with surface layer comprising polymers, and image forming apparatus using the same
CANON KK24 citations92
US5034777AJul 23, 1991
Transferring device having charging device with double oxide and voltage control
CANON KK40 citations92
US7693457B2Apr 6, 2010
Charging member, process cartridge, and electrophotographic apparatus
CANON KK43 citations91
US6023597AFeb 8, 2000
Cellular conductive roller with conductive powder filling open cells in the surface
CANON KK30 citations91
US6078778AJun 20, 2000
Electrifying member comprising an electrically conductive elastomer, and electrophotograph apparatus using said electrifying member
CANON KK17 citations84
US7664434B2Feb 16, 2010
Charging member, process cartridge and electrophotographic apparatus
CANON KK18 citations83
US5270768ADec 14, 1993
Charging member containing reduced titanium oxide and device using same
CANON KK20 citations82
US6951688B2Oct 4, 2005
Charging member, and image-forming apparatus and process cartridge which make use of the same
CANON KK11 citations74
US6559210B2May 6, 2003
Charging member and electrophotographic apparatus
CANON KK9 citations74
US6041209AMar 21, 2000
Charging member having an elastomeric member including an elastomeric material having a double oxide
CANON KK12 citations74
US5757508AMay 26, 1998
Charging member having an elastomeric member comprising an elastomeric material and a double oxide
CANON KK8 citations74
US5378526AJan 3, 1995
Elastic member for electrophotography
CANON KK13 citations74
US4981381AJan 1, 1991
Platen roller with composition giving increased durability
CANON KK13 citations74
US9186117B2Nov 17, 2015
X-ray imaging apparatus
CANON KK5 citations73
US9022650B2May 5, 2015
X-ray imaging apparatus
CANON KK6 citations73
US6001454ADec 14, 1999
Charging member and electrophotographic apparatus using the same
CANON KK14 citations73
US5824408AOct 20, 1998
White electroconductive coating composition and transfer material-carrying member
CANON KK8 citations72
US5819142AOct 6, 1998
Charging member and image-forming unit having the same
CANON KK16 citations72
HITACHI LTD
18 patentsUS6737318B2May 18, 2004
Semiconductor integrated circuit device having switching misfet and capacitor element and method of producing the same, including wiring therefor and method of producing such wiring
HITACHI LTD105 citations99
US5629898AMay 13, 1997
Dynamic memory device, a memory module, and a method of refreshing a dynamic memory device
HITACHI LTD142 citations98
US5504029AApr 2, 1996
Method of producing semiconductor integrated circuit device having memory cell and peripheral circuit MISFETs
HITACHI LTD99 citations97
US5153685AOct 6, 1992
Semiconductor integrated circuit device having switching MISFET and capacitor element and method of producing the same, including wiring therefor and method of producing such wiring
HITACHI LTD72 citations96
US5804479ASep 8, 1998
Method for forming semiconductor integrated circuit device having a capacitor
HITACHI LTD58 citations95
US5734188AMar 31, 1998
Semiconductor integrated circuit, method of fabricating the same and apparatus for fabricating the same
HITACHI LTD73 citations95
US6620704B2Sep 16, 2003
Method of fabricating low stress semiconductor devices with thermal oxide isolation
HITACHI LTD13 citations92
US5930624AJul 27, 1999
Method of producing semiconductor integrated circuit device having switching MISFET and capacitor element including wiring
HITACHI LTD22 citations92
US5917211AJun 29, 1999
Semiconductor integrated circuit, method of fabricating the same and apparatus for fabricating the same
HITACHI LTD37 citations92
US5578849ANov 26, 1996
Semiconductor integrated circuit device including a memory device having memory cells with increased information storage capacitance
HITACHI LTD35 citations92
US5349218ASep 20, 1994
Semiconductor integrated circuit device including memory cells having a structure effective in suppression of leak current
HITACHI LTD36 citations92
US5268587ADec 7, 1993
Semiconductor integrated circuit device including a dielectric breakdown prevention circuit
HITACHI LTD29 citations92
US5264712ANov 23, 1993
Semiconductor integrated circuit, method of fabricating the same and apparatus for fabricating the same
HITACHI LTD27 citations92
US5081515AJan 14, 1992
Semiconductor integrated circuit device
HITACHI LTD25 citations92
US5732009AMar 24, 1998
Semiconductor integrated circuit device including a DRAM in which a cell selection transistor has a stabilized threshold voltage
HITACHI LTD33 citations91
US6060352AMay 9, 2000
Method of manufacturing semiconductor device with increased focus margin
HITACHI LTD16 citations83
US5753550AMay 19, 1998
Semiconductor integrated circuit device having switching MISFET and capacitor element and method of producing the same, including wiring therefor and method of producing such wiring
HITACHI LTD7 citations74
US5933724AAug 3, 1999
Method of manufacturing a semiconductor integrated circuit device using a photomask in which transmitted light beam intensities are controlled
HITACHI LTD11 citations73
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
4 patentsUS5032160AJul 16, 1991
Method of press molding lens material
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD28 citations92
US5171348ADec 15, 1992
Die for press-molding optical element
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD48 citations91
US5684641ANov 4, 1997
Objective lens and optical head apparatus using the objective lens
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations73
US5160361ANov 3, 1992
Method of manufacturing optical element
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations73
MURATA JUN
2 patentsKURODA NORIAKI
1 patentTEXAS INSTRUMENTS INC
1 patentHIATCHI LTD
1 patentITOH ATSUSHI
1 patentPANASONIC CORP
1 patentShowing the top 50 of 90 patents by PatentIndex Score.