Assignee
EPSON CORP
JP·112 granted patents·3,101 citations·filing 1975–2001
Top patents by PatentIndex Score
112 records- 0199US4436439ASmall printerEPSON CORP·Filed 1981·Granted Mar 13, 1984·250 cites·66 claims
- 0298USD291442SComputerEPSON CORP·Filed 1984·Granted Aug 18, 1987·69 cites·1 claims
- 0398US4636866APersonal liquid crystal image displayEPSON CORP·Filed 1983·Granted Jan 13, 1987·213 cites·16 claims
- 0498USD276039SAutomotive instrument panelEPSON CORP·Filed 1982·Granted Oct 23, 1984·85 cites·1 claims
- 0597US4577203AInk jet recording apparatusEPSON CORP·Filed 1985·Granted Mar 18, 1986·204 cites·50 claims
- 0697USD282843SPortable electronic computerEPSON CORP·Filed 1983·Granted Mar 4, 1986·48 cites·1 claims
- 0797US4368478AInk supply system for ink jet printersEPSON CORP·Filed 1981·Granted Jan 11, 1983·143 cites·45 claims
- 0896US4421559AJet printing ink compositionEPSON CORP·Filed 1981·Granted Dec 20, 1983·82 cites·7 claims
- 0996US4380770AInk jet printerEPSON CORP·Filed 1980·Granted Apr 19, 1983·137 cites·18 claims
- 1095US4589000AInk jet printer of the ink-on-demand typeEPSON CORP·Filed 1985·Granted May 13, 1986·71 cites·1 claims
- 1195US4450454ASmall size ink jet printerEPSON CORP·Filed 1981·Granted May 22, 1984·75 cites·14 claims
- 1294US4489334AImmersible oxygen absorbing capsule for ink jet fluid supplyEPSON CORP·Filed 1982·Granted Dec 18, 1984·66 cites·26 claims
- 1394US4422084AFluid tank and device for detecting remaining fluidEPSON CORP·Filed 1980·Granted Dec 20, 1983·155 cites·26 claims
- 1493US4525728AInk jet recording headEPSON CORP·Filed 1983·Granted Jun 25, 1985·59 cites·8 claims
- 1593US4204180AEnd of paper roll detection assemblyEPSON CORP·Filed 1978·Granted May 20, 1980·59 cites·13 claims
- 1692US4168421AVoltage compensating drive circuit for a thermal printerEPSON CORP·Filed 1977·Granted Sep 18, 1979·40 cites·8 claims
- 1790US4487481ABacklighted liquid crystal displayEPSON CORP·Filed 1981·Granted Dec 11, 1984·90 cites·11 claims
- 1889US4462035ANon-impact recording deviceEPSON CORP·Filed 1982·Granted Jul 24, 1984·43 cites·21 claims
- 1989US4434430AInk jet printer headEPSON CORP·Filed 1982·Granted Feb 28, 1984·36 cites·26 claims
- 2088US4597635ALiquid crystal display device and a method of manufacturing the same from a folded plastic sheetEPSON CORP·Filed 1983·Granted Jul 1, 1986·61 cites·30 claims
- 2188US4526818ALiquid crystal display panel and process for the production thereofEPSON CORP·Filed 1983·Granted Jul 2, 1985·82 cites·24 claims
- 2288US4520374AInk jet printing apparatusEPSON CORP·Filed 1982·Granted May 28, 1985·40 cites·31 claims
- 2388US4471363AMethod and apparatus for driving an ink jet printer headEPSON CORP·Filed 1981·Granted Sep 11, 1984·49 cites·25 claims
- 2486US4352691ALiquid ink for printersEPSON CORP·Filed 1980·Granted Oct 5, 1982·41 cites·11 claims
- 2585US4567448AVariable frequency oscillatorEPSON CORP·Filed 1983·Granted Jan 28, 1986·40 cites·12 claims
- 2684US4452542ASerial printerEPSON CORP·Filed 1981·Granted Jun 5, 1984·31 cites·6 claims
- 2782USD279728SCarrying caseEPSON CORP·Filed 1983·Granted Jul 23, 1985·17 cites·1 claims
- 2882US4433925AManually-operated dot printer for pocket sized calculatorsEPSON CORP·Filed 1981·Granted Feb 28, 1984·28 cites·4 claims
- 2980US4553865AInk-supplied wire dot printerEPSON CORP·Filed 1983·Granted Nov 19, 1985·26 cites·12 claims
- 3080US4409596AMethod and apparatus for driving an ink jet printer headEPSON CORP·Filed 1981·Granted Oct 11, 1983·24 cites·27 claims
- 3179US4409600AThermal printer drive circuitEPSON CORP·Filed 1981·Granted Oct 11, 1983·24 cites·13 claims
- 3277US4420764AInk jet printer headEPSON CORP·Filed 1981·Granted Dec 13, 1983·22 cites·9 claims
- 3376US4806955AInk jet printer of the ink-on-demand typeEPSON CORP·Filed 1988·Granted Feb 21, 1989·16 cites·7 claims
- 3476US4465959AStep motor drive controlEPSON CORP·Filed 1982·Granted Aug 14, 1984·28 cites·27 claims
- 3576US4431319AMethod and apparatus for serial dot printingEPSON CORP·Filed 1981·Granted Feb 14, 1984·29 cites·8 claims
- 3675US4204778AWire type dot printer head assemblyEPSON CORP·Filed 1978·Granted May 27, 1980·16 cites·6 claims
- 3774USD275499SInk ribbon cartridgeEPSON CORP·Filed 1982·Granted Sep 11, 1984·14 cites·1 claims
- 3873US4457639AMotor control for printer carriageEPSON CORP·Filed 1982·Granted Jul 3, 1984·21 cites·6 claims
- 3973US4090410APaper feeding mechanismEPSON CORP·Filed 1977·Granted May 23, 1978·21 cites·18 claims
- 4071US6674423B2Drive unit and liquid crystal deviceEPSON CORP·Filed 2001·Granted Jan 6, 2004·13 cites·30 claims
- 4170US4546362ALow voltage ink-jet printheadEPSON CORP·Filed 1982·Granted Oct 8, 1985·16 cites·15 claims
- 4269US4565461APitch-changeable, cam-actuated paper feed for serial printerEPSON CORP·Filed 1983·Granted Jan 21, 1986·16 cites·11 claims
- 4368USD281426SKeyboard for an electronic computerEPSON CORP·Filed 1983·Granted Nov 19, 1985·10 cites·1 claims
- 4468US4364066AInk jet printing headEPSON CORP·Filed 1980·Granted Dec 14, 1982·13 cites·16 claims
- 4567US4252449AConstruction of wire type dot printer headEPSON CORP·Filed 1979·Granted Feb 24, 1981·12 cites·9 claims
- 4666US4635128APocket machinery cabinetEPSON CORP·Filed 1984·Granted Jan 6, 1987·17 cites·34 claims
- 4766USD282256SAcoustically coupled modemEPSON CORP·Filed 1983·Granted Jan 21, 1986·9 cites·1 claims
- 4866US4443807AInk jet print headEPSON CORP·Filed 1981·Granted Apr 17, 1984·13 cites·15 claims
- 4965USD279292SElectronic printerEPSON CORP·Filed 1983·Granted Jun 18, 1985·9 cites·1 claims
- 5065US4161912AMiniature printerEPSON CORP·Filed 1977·Granted Jul 24, 1979·13 cites·19 claims
Showing the top 50 of 112 patent records by PatentIndex Score.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →