Inventor · disambiguated record
Keiichi Betsui
Also filed as: BETSUI KEIICHI
71 granted patents·16 pending applications·1,260 citations·filing 1984–2019
99Inventor score
Files withFUJITSU LTD67HITACHI AUTOMOTIVE SYSTEMS LTD5YOSHIHARA TOSHIAKI3BETSUI KEIICHI2HITACHI LTD2
Top patents by PatentIndex Score
87 records- 0197US6762743B2Display device employing a field-sequential methodFUJITSU LTD·Filed 2001·Granted Jul 13, 2004·128 cites·7 claims
- 0295US5825128APlasma display panel with undulating separator wallsFUJITSU LTD·Filed 1996·Granted Oct 20, 1998·109 cites·23 claims
- 0393US7176879B1Display device and display methodFUJITSU LTD·Filed 2003·Granted Feb 13, 2007·56 cites·29 claims
- 0491US6646275B2Charged particle beam exposure system and methodFUJITSU LTD·Filed 2002·Granted Nov 11, 2003·43 cites·7 claims
- 0590US6485596B1Three-dimensional structure transfer method and apparatusFUJITSU LTD·Filed 2000·Granted Nov 26, 2002·33 cites·10 claims
- 0688US6242859B1Plasma display panel and method of manufacturing sameFUJITSU LTD·Filed 1998·Granted Jun 5, 2001·57 cites·34 claims
- 0786US8009249B2Liquid crystal display deviceFUJITSU LTD·Filed 2006·Granted Aug 30, 2011·7 cites·10 claims
- 0886US6008576AFlat display and process for producing cathode plate for use in flat displayFUJITSU LTD·Filed 1997·Granted Dec 28, 1999·49 cites·21 claims
- 0985US6601629B2Three-dimensional structure transfer method and apparatusFUJITSU LTD·Filed 2002·Granted Aug 5, 2003·21 cites·5 claims
- 1084US6296539B1Method of making plasma display panel with dielectric layer suppressing reduced electrode conductivityFUJITSU LTD·Filed 2000·Granted Oct 2, 2001·30 cites·6 claims
- 1184US5967872AMethod for fabrication of a plasma display panelFUJITSU LTD·Filed 1998·Granted Oct 19, 1999·39 cites·27 claims
- 1283US5528048ACharged particle beam exposure system and methodFUJITSU LTD·Filed 1995·Granted Jun 18, 1996·47 cites·21 claims
- 1382US6242860B1Plasma display panel and method of manufacturing sameFUJITSU LTD·Filed 1997·Granted Jun 5, 2001·43 cites·26 claims
- 1481US8658988B2Three-dimensional image projectorHITACHI CONSUMER ELECTRONICS·Filed 2013·Granted Feb 25, 2014·4 cites·17 claims
- 1581US5214289ACharged particle beam deflectorFUJITSU LTD·Filed 1991·Granted May 25, 1993·37 cites·19 claims
- 1680US6236159B1Gas discharge panel having gas flow barriers and evacuation method thereofFUJITSU LTD·Filed 1998·Granted May 22, 2001·35 cites·16 claims
- 1779US5614725ACharged particle beam exposure system and methodFUJITSU LTD·Filed 1996·Granted Mar 25, 1997·36 cites·12 claims
- 1879US5587720AField emitter array and cleaning method of the sameFUJITSU LTD·Filed 1994·Granted Dec 24, 1996·34 cites·15 claims
- 1978US7362404B2Liquid crystal display device and method of manufacturing liquid crystal display device for preventing defects in liquid crystalFUJITSU LTD·Filed 2004·Granted Apr 22, 2008·18 cites·18 claims
- 2078US5572041AField emission cathode device made of semiconductor substrateFUJITSU LTD·Filed 1993·Granted Nov 5, 1996·34 cites·22 claims
- 2177US6577060B2Display deviceFUJITSU LTD·Filed 2000·Granted Jun 10, 2003·17 cites·45 claims
- 2277US6482575B2Method of preparing barrier rib master pattern for barrier rib transfer and method of forming barrier ribsFUJITSU LTD·Filed 2001·Granted Nov 19, 2002·12 cites·9 claims
- 2377US6048243AMethod of forming barrier ribs of display panelFUJITSU LTD·Filed 1997·Granted Apr 11, 2000·30 cites·8 claims
- 2476US6118129AMethod and system for exposing an exposure pattern on an object by a charged particle beam which is shaped into a plurality of beam elementsFUJITSU LTD·Filed 1999·Granted Sep 12, 2000·30 cites·15 claims
- 2575US5844531AFluorescent display device and driving method thereofFUJITSU LTD·Filed 1995·Granted Dec 1, 1998·27 cites·9 claims
- 2674US7312774B1Liquid crystal display deviceFUJITSU LTD·Filed 2003·Granted Dec 25, 2007·13 cites·18 claims
- 2774US7019762B2Display deviceFUJITSU LTD·Filed 2003·Granted Mar 28, 2006·13 cites·17 claims
- 2874US5977548ACharged particle beam exposure system and methodFUJITSU LTD·Filed 1996·Granted Nov 2, 1999·28 cites·11 claims
- 2973US8044901B2Liquid crystal display device having spontaneous polarizationFUJITSU LTD·Filed 2007·Granted Oct 25, 2011·2 cites·22 claims
- 3072US7724229B2Liquid crystal display deviceFUJITSU LTD·Filed 2005·Granted May 25, 2010·2 cites·2 claims
- 3171US6420831B2Glass paste composition for forming dielectric layer on electrodes of plasma display panelFUJITSU LTD·Filed 2001·Granted Jul 16, 2002·7 cites·8 claims
- 3269US5938494AMethod for producing a plasma display panelFUJITSU LTD·Filed 1997·Granted Aug 17, 1999·23 cites·10 claims
- 3368US5489933AField emission microcathode array and printer including the arrayFUJITSU LTD·Filed 1992·Granted Feb 6, 1996·20 cites·18 claims
- 3467US8466861B2Liquid crystal display device and display methodYOSHIHARA TOSHIAKI·Filed 2008·Granted Jun 18, 2013·1 cites·8 claims
- 3567US5920077ACharged particle beam exposure systemFUJITSU LTD·Filed 1998·Granted Jul 6, 1999·21 cites·17 claims
- 3665US5576594ACathode device having smaller openingFUJITSU LTD·Filed 1995·Granted Nov 19, 1996·14 cites·12 claims
- 3763US7755594B2Display device and display methodFUJITSU LTD·Filed 2003·Granted Jul 13, 2010·7 cites·11 claims
- 3862US7764346B2Liquid crystal display device and orientation processing methodFUJITSU LTD·Filed 2007·Granted Jul 27, 2010·1 cites·6 claims
- 3962US6600544B2Liquid crystal display deviceFUJITSU LTD·Filed 2001·Granted Jul 29, 2003·7 cites·16 claims
- 4061US6888610B2Liquid crystal display device having spontaneous polarizationFUJITSU LTD·Filed 2003·Granted May 3, 2005·6 cites·9 claims
- 4161US5932962AElectron emitter elements, their use and fabrication processes thereforFUJITSU LTD·Filed 1996·Granted Aug 3, 1999·15 cites·13 claims
- 4259US7161652B2Method of manufacturing a liquid crystal display device having spontaneous polarized liquid crystal, with heating and applied voltageFUJITSU LTD·Filed 2003·Granted Jan 9, 2007·4 cites·4 claims
- 4359US5389026AMethod of producing metallic microscale cold cathodesFUJITSU LTD·Filed 1993·Granted Feb 14, 1995·14 cites·4 claims
- 4459US2008194165A1Gas discharge panel substrate assembly having protective layer in contact with discharge space and ac type gas discharge panel having the assemblyFUJITSU LTD AND FUJITSU HITACH·Filed 2008·Application pending·0 cites
- 4558US7499012B2Liquid crystal display deviceFUJITSU LTD·Filed 2004·Granted Mar 3, 2009·5 cites·14 claims
- 4655US8692463B2Plasma display panel having inert film and manufacturing methodHASEGAWA MINORU·Filed 2008·Granted Apr 8, 2014·0 cites·5 claims
- 4755US6344713B1Plasma display panel with dielectric layer suppressing reduced electrode conductivityFUJITSU LTD·Filed 1997·Granted Feb 5, 2002·22 cites·5 claims
- 4854US8253674B2Drive method for liquid crystal display device and liquid crystal display deviceMAKINO TETSUYA·Filed 2007·Granted Aug 28, 2012·0 cites·12 claims
- 4954US7030545B2Field emission cathode with emitters formed of acicular protrusions with secondary emitting protrusions formed thereonFUJITSU LTD·Filed 2003·Granted Apr 18, 2006·2 cites·4 claims
- 5054US6333142B1Master for barrier rib transfer mold, and method for forming barrier ribs of plasma display panel using the sameFUJITSU LTD·Filed 1999·Granted Dec 25, 2001·10 cites·11 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →