Inventor · disambiguated record
Masao Mitani
Also filed as: MITANI MASAO
43 granted patents·1,686 citations·filing 1980–2003
98Inventor score
Top patents by PatentIndex Score
43 records- 0197US5896154AInk jet printerHITACHI KOKI KK·Filed 1995·Granted Apr 20, 1999·160 cites·32 claims
- 0297US5621524AMethod for testing ink-jet recording headsHITACHI KOKI KK·Filed 1996·Granted Apr 15, 1997·169 cites·6 claims
- 0397US5499087AHeat fixing device and electrophotographic apparatus incorporating the same having a PTC heating element received in a recess of a holderHITACHI LTD·Filed 1993·Granted Mar 12, 1996·88 cites·23 claims
- 0496US5697144AMethod of producing a head for the printerHITACHI KOKI KK·Filed 1995·Granted Dec 16, 1997·135 cites·19 claims
- 0595US5831648AInk jet recording headHITACHI KOKI KK·Filed 1995·Granted Nov 3, 1998·115 cites·16 claims
- 0694US5278618AThermal fixing device including a non-adhesive resin coated metal belt and PTC thermistor heaterHITACHI KOKI KK·Filed 1992·Granted Jan 11, 1994·53 cites·7 claims
- 0793US4952272AMethod of manufacturing probing head for testing equipment of semi-conductor large scale integrated circuitsHITACHI LTD·Filed 1989·Granted Aug 28, 1990·105 cites·20 claims
- 0891US5666140AInk jet print headHITACHI KOKI KK·Filed 1994·Granted Sep 9, 1997·82 cites·20 claims
- 0989US5184208ASemiconductor deviceHITACHI LTD·Filed 1991·Granted Feb 2, 1993·115 cites·34 claims
- 1089US4444801AMethod and apparatus for correcting transparent defects on a photomaskHITACHI LTD·Filed 1982·Granted Apr 24, 1984·51 cites·40 claims
- 1186US5444475AThermal recording headHITACHI KOKI KK·Filed 1993·Granted Aug 22, 1995·59 cites·2 claims
- 1285US6962407B2Inkjet recording head, method of manufacturing the same, and inkjet printerFUJI PHOTO FILM CO LTD·Filed 2001·Granted Nov 8, 2005·26 cites·13 claims
- 1385US4581628ACircuit programming by use of an electrically conductive light shieldHITACHI LTD·Filed 1982·Granted Apr 8, 1986·60 cites·3 claims
- 1483US4463073AMethod and apparatus for redressing defective photomaskHITACHI LTD·Filed 1982·Granted Jul 31, 1984·59 cites·16 claims
- 1581US5467112ALiquid droplet ejecting apparatusHITACHI KOKI KK·Filed 1993·Granted Nov 14, 1995·42 cites·20 claims
- 1675US5790154AMethod of manufacturing an ink ejection recording head and a recording apparatus using the recording headHITACHI KOKI KK·Filed 1996·Granted Aug 4, 1998·34 cites·18 claims
- 1774US4301353AMethod for producing magnetic headHITACHI LTD·Filed 1980·Granted Nov 17, 1981·25 cites·5 claims
- 1873US5670996AThermal ink jet recording device and method of cleaning a recording headHITACHI KOKI KK·Filed 1995·Granted Sep 23, 1997·31 cites·19 claims
- 1972US5386281AThermal fixing deviceHITACHI KOKI KK·Filed 1993·Granted Jan 31, 1995·19 cites·7 claims
- 2072US4517444AThermal printheadHITACHI LTD·Filed 1984·Granted May 14, 1985·19 cites·2 claims
- 2170US5821960AInk jet recording head having first and second connection linesHITACHI KOKI KK·Filed 1996·Granted Oct 13, 1998·28 cites·20 claims
- 2268US6663227B2Semiconductor device and process for producing the sameFUJI PHOTO FILM CO LTD·Filed 2002·Granted Dec 16, 2003·11 cites·15 claims
- 2364US6598957B2Recording head and process for producing the sameFUJI PHOTO FILM CO LTD·Filed 2002·Granted Jul 29, 2003·9 cites·8 claims
- 2464US6161924AInk jet recording headFUJI PHOTO FILM CO LTD·Filed 1997·Granted Dec 19, 2000·22 cites·23 claims
- 2560US4343986AThermal printheadHITACHI LTD·Filed 1981·Granted Aug 10, 1982·14 cites·5 claims
- 2659US4983110AResin encapsulating apparatus for semiconductor devicesHITACHI LTD·Filed 1989·Granted Jan 8, 1991·23 cites·7 claims
- 2758US5216466AElectrophotographic recording apparatus and system including a dielectric belt and transfer and fixing meansHITACHI KOKI KK·Filed 1992·Granted Jun 1, 1993·11 cites·10 claims
- 2856US5966153AInk jet printing deviceHITACHI KOKI KK·Filed 1996·Granted Oct 12, 1999·15 cites·6 claims
- 2954US5110515AMethod of encapsulating semiconductor chipsHITACHI LTD·Filed 1989·Granted May 5, 1992·19 cites·6 claims
- 3052US5734398AThermal ink jet printer and a method of driving the sameHITACHI KOKI KK·Filed 1995·Granted Mar 31, 1998·13 cites·17 claims
- 3150US5365113ASemiconductor deviceHITACHI LTD·Filed 1993·Granted Nov 15, 1994·15 cites·11 claims
- 3249US5514905ASemiconductor deviceHITACHI LTD·Filed 1994·Granted May 7, 1996·13 cites·18 claims
- 3347US6749289B2Liquid ejection apparatus and inkjet printer, and method of manufacturing themFUJI PHOTO FILM CO LTD·Filed 2002·Granted Jun 15, 2004·3 cites·22 claims
- 3447US5710583AInk jet image recorderHITACHI KOKI KK·Filed 1995·Granted Jan 20, 1998·10 cites·32 claims
- 3546US6403476B2Semiconductor chip, semiconductor wafer, semiconductor device and method of manufacturing the semiconductor deviceFUJI PHOTO FILM CO LTD·Filed 2001·Granted Jun 11, 2002·2 cites·7 claims
- 3645US6786576B2Inkjet recording head with minimal ink drop ejecting capabilityFiled 2003·Granted Sep 7, 2004·2 cites·11 claims
- 3744US6012804AInk jet recording headFiled 1998·Granted Jan 11, 2000·8 cites·7 claims
- 3844US5742101ASemiconductor deviceHITACHI LTD·Filed 1995·Granted Apr 21, 1998·9 cites·25 claims
- 3942US4460494AResistorHITACHI LTD·Filed 1982·Granted Jul 17, 1984·5 cites·3 claims
- 4038US7043837B2Method of manufacture of inkjet printer headFUJI PHOTO FILM CO LTD·Filed 2002·Granted May 16, 2006·0 cites·4 claims
- 4135US5729260AInk jet printer with high power, short duration pulseHITACHI KOKI KK·Filed 1994·Granted Mar 17, 1998·2 cites·18 claims
- 4235US5428432AElectrophotographic recording apparatus having integrated heating and cooling deviceHITACHI KOKI KK·Filed 1992·Granted Jun 27, 1995·3 cites·7 claims
- 4333US5980024AInk jet print head and a method of driving ink therefromHITACHI KOKI KK·Filed 1996·Granted Nov 9, 1999·2 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →