Inventor · disambiguated record
Eiichi Ohta
Also filed as: OHTA EIICHI
37 granted patents·4 pending applications·1,018 citations·filing 1978–2013
98Inventor score
Top patents by PatentIndex Score
41 records- 0195US6367914B1Electrostatic ink-jet head and method of production of the sameRICOH KK·Filed 2000·Granted Apr 9, 2002·69 cites·44 claims
- 0295US5117299ALiquid crystal display with a light blocking film of hard carbonRICOH KK·Filed 1991·Granted May 26, 1992·103 cites·4 claims
- 0394US6947195B2Optical modulator, optical modulator manufacturing method, light information processing apparatus including optical modulator, image formation apparatus including optical modulator, and image projection and display apparatus including optical modulatorRICOH KK·Filed 2002·Granted Sep 20, 2005·62 cites·95 claims
- 0491US4687352APrinter with an image readerBROTHER IND LTD·Filed 1985·Granted Aug 18, 1987·65 cites·15 claims
- 0589US7166486B2Optical modulator, optical modulator manufacturing method, light information processing apparatus including optical modulator, image formation apparatus including optical modulator, and image projection and display apparatus including optical modulatorRICOH KK·Filed 2005·Granted Jan 23, 2007·19 cites·12 claims
- 0688US8585188B2Thin-film actuator, liquid ejection head, ink cartridge, and image forming apparatusOHTA EIICHI·Filed 2012·Granted Nov 19, 2013·6 cites·10 claims
- 0788US4849730AForce detecting deviceRICOH KK·Filed 1987·Granted Jul 18, 1989·70 cites·8 claims
- 0886US5132676ALiquid crystal displayRICOH KK·Filed 1990·Granted Jul 21, 1992·75 cites·3 claims
- 0982US5142390AMIM element with a doped hard carbon filmRICOH KK·Filed 1990·Granted Aug 25, 1992·61 cites·18 claims
- 1082US5101288ALCD having obliquely split or interdigitated pixels connected to MIM elements having a diamond-like insulatorRICOH KK·Filed 1990·Granted Mar 31, 1992·62 cites·11 claims
- 1181US8960866B2Electromechanical transducer element, liquid discharge head, liquid discharge device, and image forming apparatusMACHIDA OSAMU·Filed 2013·Granted Feb 24, 2015·3 cites·7 claims
- 1281US7715760B2Charging device, and process cartridge and image forming apparatus using the sameRICOH KK·Filed 2006·Granted May 11, 2010·6 cites·13 claims
- 1381US7554574B2Abnormal state occurrence predicting method, state deciding apparatus, and image forming systemRICOH KK·Filed 2004·Granted Jun 30, 2009·29 cites·25 claims
- 1478US5153753AActive matrix-type liquid crystal display containing a horizontal MIM device with inter-digital conductorsRICOH KK·Filed 1990·Granted Oct 6, 1992·49 cites·1 claims
- 1577US4911023AForce sensing apparatusRICOH KK·Filed 1988·Granted Mar 27, 1990·38 cites·16 claims
- 1677US4836034AForce sensing apparatusRICOH KK·Filed 1987·Granted Jun 6, 1989·38 cites·7 claims
- 1776US5319479ADeposited multi-layer device with a plastic substrate having an inorganic thin film layerRICOH KK·Filed 1991·Granted Jun 7, 1994·45 cites·11 claims
- 1875US9512521B2Manufacturing method of and manufacturing apparatus for metal oxide filmWATANABE AKIRA·Filed 2012·Granted Dec 6, 2016·1 cites·6 claims
- 1975US7728503B2Electron emission element, charging device, process cartridge, and image forming apparatusRICOH KK·Filed 2007·Granted Jun 1, 2010·4 cites·23 claims
- 2073US4748516AInput/output device for image reading and printingBROTHER IND LTD·Filed 1986·Granted May 31, 1988·29 cites·20 claims
- 2168US8086141B2Electric charging apparatus and image forming apparatus using the sameSOMEYA YUKIMICHI·Filed 2008·Granted Dec 27, 2011·3 cites·19 claims
- 2264US5214416AActive matrix boardRICOH KK·Filed 1990·Granted May 25, 1993·28 cites·7 claims
- 2363US6058862ALink-member swinging apparatusBROTHER IND LTD·Filed 1998·Granted May 9, 2000·10 cites·22 claims
- 2462US4702630AFacsimile-printer apparatusBROTHER IND LTD·Filed 1986·Granted Oct 27, 1987·18 cites·6 claims
- 2559US5543945AMethod of driving an LCD employing combining two voltages which change polarity at different times in a frameRICOH KK·Filed 1994·Granted Aug 6, 1996·21 cites·6 claims
- 2656US5008732AThin film two terminal elementRICOH KK·Filed 1989·Granted Apr 16, 1991·16 cites·4 claims
- 2755US5276509AMulti-color facsimile apparatus having different data preparation and transmission modes and data preparations and transmission method practiced by the apparatusBROTHER IND LTD·Filed 1989·Granted Jan 4, 1994·15 cites·45 claims
- 2853US6341847B1Electrostatic inkjet head having an accurate gap between an electrode and a diaphragm and manufacturing method thereofRICOH KK·Filed 1999·Granted Jan 29, 2002·16 cites·18 claims
- 2951US4743089APhotoelectric optical fiber reading apparatusBROTHER IND LTD·Filed 1985·Granted May 10, 1988·11 cites·8 claims
- 3048US2011123728A1Thin film manufacturing method and thin film elementRICOH CO LTD·Filed 2010·Application pending·0 cites
- 3147US2012028075A1Thin film manufacturing method and thin-film elementYAGI MASAHIRO·Filed 2011·Application pending·0 cites
- 3244US4684999AImage readerBROTHER IND LTD·Filed 1985·Granted Aug 4, 1987·8 cites·13 claims
- 3344US2010231659A1Thin-film actuator, liquid ejection head, ink cartridge, and image forming apparatusOHTA EIICHI·Filed 2010·Application pending·0 cites
- 3443US4722620APrinter with an image readerBROTHER IND LTD·Filed 1985·Granted Feb 2, 1988·5 cites·6 claims
- 3541US6354697B1Electrostatic typeinkjet head having a vent passage and a manufacturing method thereofRICOH KK·Filed 1999·Granted Mar 12, 2002·6 cites·14 claims
- 3640US4652743AOptical image-reading apparatusBROTHER IND LTD·Filed 1985·Granted Mar 24, 1987·7 cites·18 claims
- 3737US4241111AProcess for consecutively coating both sides of webFUJI PHOTO FILM CO LTD·Filed 1978·Granted Dec 23, 1980·5 cites·5 claims
- 3836US5021877AOptical image reading apparatus capable of reading multi-colored originalBROTHER IND LTD·Filed 1988·Granted Jun 4, 1991·6 cites·16 claims
- 3936US4647768AImage sensing head for document scanningBROTHER IND LTD·Filed 1985·Granted Mar 3, 1987·6 cites·3 claims
- 4034US4647765AImage sensing head of image reading device having light shield and base plate disposed at end face thereofBROTHER IND LTD·Filed 1984·Granted Mar 3, 1987·3 cites·4 claims
- 4132US2010302323A1Fluid discharge head and image forming apparatusYAGI MASAHIRO·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →