Assignee
EPSON CORP
JP112 patents
Top patents by PatentIndex Score
US4636866AJan 13, 1987
Personal liquid crystal image display
EPSON CORP213 citations99
US4436439AMar 13, 1984
Small printer
EPSON CORP250 citations99
US4577203AMar 18, 1986
Ink jet recording apparatus
EPSON CORP204 citations98
US4422084ADec 20, 1983
Fluid tank and device for detecting remaining fluid
EPSON CORP155 citations97
USD291442SAug 18, 1987
Computer
EPSON CORP69 citations96
US4597635AJul 1, 1986
Liquid crystal display device and a method of manufacturing the same from a folded plastic sheet
EPSON CORP61 citations96
US4589000AMay 13, 1986
Ink jet printer of the ink-on-demand type
EPSON CORP71 citations96
USD282843SMar 4, 1986
Portable electronic computer
EPSON CORP48 citations96
US4525728AJun 25, 1985
Ink jet recording head
EPSON CORP59 citations96
US4489334ADec 18, 1984
Immersible oxygen absorbing capsule for ink jet fluid supply
EPSON CORP66 citations96
USD276039SOct 23, 1984
Automotive instrument panel
EPSON CORP85 citations96
US4450454AMay 22, 1984
Small size ink jet printer
EPSON CORP75 citations96
US4421559ADec 20, 1983
Jet printing ink composition
EPSON CORP82 citations96
US4368478AJan 11, 1983
Ink supply system for ink jet printers
EPSON CORP143 citations96
US4380770AApr 19, 1983
Ink jet printer
EPSON CORP137 citations95
US4567448AJan 28, 1986
Variable frequency oscillator
EPSON CORP40 citations93
US4433925AFeb 28, 1984
Manually-operated dot printer for pocket sized calculators
EPSON CORP28 citations93
US4168421ASep 18, 1979
Voltage compensating drive circuit for a thermal printer
EPSON CORP40 citations93
US4526818AJul 2, 1985
Liquid crystal display panel and process for the production thereof
EPSON CORP82 citations92
US4520374AMay 28, 1985
Ink jet printing apparatus
EPSON CORP40 citations92
US4487481ADec 11, 1984
Backlighted liquid crystal display
EPSON CORP90 citations92
US4462035AJul 24, 1984
Non-impact recording device
EPSON CORP43 citations92
US4434430AFeb 28, 1984
Ink jet printer head
EPSON CORP36 citations92
US4352691AOct 5, 1982
Liquid ink for printers
EPSON CORP41 citations92
US4471363ASep 11, 1984
Method and apparatus for driving an ink jet printer head
EPSON CORP49 citations91
US4452542AJun 5, 1984
Serial printer
EPSON CORP31 citations91
US4465959AAug 14, 1984
Step motor drive control
EPSON CORP28 citations90
US4204180AMay 20, 1980
End of paper roll detection assembly
EPSON CORP59 citations90
US4431319AFeb 14, 1984
Method and apparatus for serial dot printing
EPSON CORP29 citations86
US6674423B2Jan 6, 2004
Drive unit and liquid crystal device
EPSON CORP13 citations82
US4806955AFeb 21, 1989
Ink jet printer of the ink-on-demand type
EPSON CORP16 citations82
USD279728SJul 23, 1985
Carrying case
EPSON CORP17 citations82
US4420764ADec 13, 1983
Ink jet printer head
EPSON CORP22 citations82
US4409596AOct 11, 1983
Method and apparatus for driving an ink jet printer head
EPSON CORP24 citations82
US4409600AOct 11, 1983
Thermal printer drive circuit
EPSON CORP24 citations82
US4090410AMay 23, 1978
Paper feeding mechanism
EPSON CORP21 citations82
US4553865ANov 19, 1985
Ink-supplied wire dot printer
EPSON CORP26 citations81
US4457639AJul 3, 1984
Motor control for printer carriage
EPSON CORP21 citations79
US4636258AJan 13, 1987
Ink for thermal transfer printing
EPSON CORP15 citations74
US4617581AOct 14, 1986
Ink jet printer of the ink-on-demand type
EPSON CORP9 citations74
USD284869SJul 29, 1986
Electronic calculator
EPSON CORP7 citations74
US4572681AFeb 25, 1986
Wire dot print head
EPSON CORP8 citations74
USD282256SJan 21, 1986
Acoustically coupled modem
EPSON CORP9 citations74
USD281426SNov 19, 1985
Keyboard for an electronic computer
EPSON CORP10 citations74
US4546362AOct 8, 1985
Low voltage ink-jet printhead
EPSON CORP16 citations74
US4522470AJun 11, 1985
Liquid crystal composition and display device
EPSON CORP11 citations74
US4500892AFeb 19, 1985
Serial thermal printer
EPSON CORP7 citations74
US4443807AApr 17, 1984
Ink jet print head
EPSON CORP13 citations74
US4443125AApr 17, 1984
Printer
EPSON CORP8 citations74
US4417257ANov 22, 1983
Printing head for thermal printer
EPSON CORP12 citations74
Showing the top 50 of 112 patents by PatentIndex Score.