Inventor · disambiguated record
Tetsu Ohishi
Also filed as: OHISHI TETSU
44 granted patents·9 pending applications·590 citations·filing 1974–2011
98Inventor score
Top patents by PatentIndex Score
53 records- 0194US7245429B2Image display device, rear projection type screen used in image display device, Fresnel lens sheet, and method of making Fresnel lens sheetHITACHI LTD·Filed 2006·Granted Jul 17, 2007·20 cites·5 claims
- 0293US7535648B2Projection type image displayHITACHI LTD·Filed 2006·Granted May 19, 2009·20 cites·9 claims
- 0393US4384081AProcess for production of hydrogenated conjugated diene polymersNIPPON ZEON CO·Filed 1982·Granted May 17, 1983·56 cites·4 claims
- 0487US5833340ASensory integration system and image display device and concave mirror for use in the same systemHITACHI LTD·Filed 1995·Granted Nov 10, 1998·27 cites·49 claims
- 0586US7586687B2Projecting optical unit and projecting type image display apparatus therewithHITACHI LTD·Filed 2005·Granted Sep 8, 2009·12 cites·11 claims
- 0686US7467872B2Projection optical unit and projection type video display device using the unitHITACHI LTD·Filed 2005·Granted Dec 23, 2008·16 cites·9 claims
- 0786US5808704ARear projection type image display apparatusHITACHI LTD·Filed 1995·Granted Sep 15, 1998·33 cites·13 claims
- 0883US7460301B2Image display apparatus, and transmissive screen and reflecting mirror used for sameHITACHI LTD·Filed 2005·Granted Dec 2, 2008·8 cites·4 claims
- 0979US5926153AMulti-display apparatusHITACHI LTD·Filed 1996·Granted Jul 20, 1999·93 cites·23 claims
- 1078US7670007B2Projection display, projection optical system and transmission lens or free curved lensHITACHI LTD·Filed 2006·Granted Mar 2, 2010·8 cites·17 claims
- 1177US5295018APolarization transforming optics, polarizing beam splitter and liquid crystal displayHITACHI LTD·Filed 1992·Granted Mar 15, 1994·51 cites·11 claims
- 1276US6462794B1Image forming unit, enlarging unit, optical parts, and image display apparatus having these componentsHITACHI LTD·Filed 1999·Granted Oct 8, 2002·46 cites·34 claims
- 1373US7261421B2Optical projector and image display apparatus using the sameHITACHI LTD·Filed 2004·Granted Aug 28, 2007·8 cites·19 claims
- 1473US4248985ASulfur-curable acrylic rubber compositionNIPPON ZEON CO·Filed 1979·Granted Feb 3, 1981·17 cites·10 claims
- 1570US7362503B2Screen, Fresnel lens sheet used for the same, and image display apparatus using the sameHITACHI LTD·Filed 2004·Granted Apr 22, 2008·7 cites·13 claims
- 1669US7176876B2Display apparatusHITACHI LTD·Filed 2003·Granted Feb 13, 2007·10 cites·22 claims
- 1769US4645712AInformation recording mediumHITACHI LTD·Filed 1985·Granted Feb 24, 1987·30 cites·7 claims
- 1868US7358934B2Field emission display apparatus with improved white balanceHITACHI LTD·Filed 2005·Granted Apr 15, 2008·1 cites·15 claims
- 1967US4228265AProcess for producing sulfur-curable acrylic rubbersNIPPON ZEON CO·Filed 1979·Granted Oct 14, 1980·13 cites·10 claims
- 2065US7961400B2Projecting optical unit and projecting type image display apparatus therewithHITACHI LTD·Filed 2009·Granted Jun 14, 2011·2 cites·7 claims
- 2165US4111867ARubber composition for tire treadsNIPPON ZEON CO·Filed 1977·Granted Sep 5, 1978·19 cites·10 claims
- 2264US7095169B2Flat panel display deviceHITACHI LTD·Filed 2003·Granted Aug 22, 2006·6 cites·20 claims
- 2362US7697202B2Screen, fresnel lens sheet used for the same, and image display apparatus using the sameHITACHI LTD·Filed 2008·Granted Apr 13, 2010·1 cites·4 claims
- 2462US7581838B2Optical projector and image display apparatus using the sameHITACHI LTD·Filed 2007·Granted Sep 1, 2009·1 cites·4 claims
- 2562US6910775B2Projection-type video displayHITACHI LTD·Filed 2003·Granted Jun 28, 2005·5 cites·20 claims
- 2662US6201516B1Projector, projecting system, system for sensation and method of manufacturing translucent screenHITACHI LTD·Filed 1997·Granted Mar 13, 2001·25 cites·14 claims
- 2761US7551352B2Image display apparatus, as well as, Fresnel lens sheet and screen to be used thereinHITACHI LTD·Filed 2005·Granted Jun 23, 2009·1 cites·12 claims
- 2861US7095558B2Image display device, rear projection type screen used in image display device, Fresnel lens sheet, and method of making Fresnel lens sheetHITACHI LTD·Filed 2004·Granted Aug 22, 2006·4 cites·21 claims
- 2961US6798580B2Projection type image display apparatusHITACHI LTD·Filed 2002·Granted Sep 28, 2004·4 cites·1 claims
- 3054US4096135AVulcanized product of terpolymer and process for preparation thereofNIPPON ZEON CO·Filed 1975·Granted Jun 20, 1978·7 cites·4 claims
- 3152US5089576AProcess for producing conjugated diene copolymerNIPPON ZEON CO·Filed 1990·Granted Feb 18, 1992·11 cites·14 claims
- 3252US4968753AAcrylonitrile rubber with quinoline compound, organic peroxide, crosslinking agentNIPPON ZEON CO·Filed 1988·Granted Nov 6, 1990·10 cites·6 claims
- 3351US8169708B2Projecting optical unit and projecting type image display apparatus therewithYOSHIKAWA HIROKI·Filed 2011·Granted May 1, 2012·0 cites·3 claims
- 3449US7529023B2Image display, Fresnel lens and screenHITACHI LTD·Filed 2006·Granted May 5, 2009·0 cites·14 claims
- 3549US2007216670A1Display DeviceYATSU YASUHARU·Filed 2007·Application pending·0 cites
- 3648US2007069630A1Image display deviceKIJIMA YUUICHI·Filed 2006·Application pending·0 cites
- 3748US2007052341A1Image display deviceIMAFUKU DAISUKE·Filed 2006·Application pending·0 cites
- 3847US2007069629A1Flat type image display device and its manufacture methodHITACHI LTD·Filed 2006·Application pending·0 cites
- 3946US7675679B2Image display device and Fresnel lens sheet used thereforHITACHI LTD·Filed 2006·Granted Mar 9, 2010·0 cites·13 claims
- 4046US7440186B2Screen, a fresnel lens sheet used for the screen, and an image display apparatus using the screenHITACHI LTD·Filed 2005·Granted Oct 21, 2008·0 cites·13 claims
- 4146US3939138ARadical polymerization initiator andd process for its preparationNIPPON ZEON CO·Filed 1974·Granted Feb 17, 1976·3 cites·9 claims
- 4245US2007002281A1Projection screen and image display apparatusHITACHI LTD·Filed 2006·Application pending·0 cites
- 4345US2006061256A1Image display device and manufacturing method thereofOROKU NORIYUKI·Filed 2005·Application pending·0 cites
- 4445US2006038480A1Flat-panel display apparatusOHISHI TETSU·Filed 2005·Application pending·0 cites
- 4544US2005189866A1Flat panel display apparatusHITACHI LTD·Filed 2005·Application pending·0 cites
- 4643US7436593B2Screen, fresnel lens sheet used therefor, and image display apparatus using the sameHITACHI LTD·Filed 2005·Granted Oct 14, 2008·0 cites·18 claims
- 4741US7403335B2Screen, Fresnel lens sheet used for the same, and image display apparatus using the sameHITACHI LTD·Filed 2004·Granted Jul 22, 2008·0 cites·14 claims
- 4841US7298080B2Display deviceHITACHI LTD·Filed 2004·Granted Nov 20, 2007·0 cites·12 claims
- 4940US7271783B2Display deviceHITACHI LTD·Filed 2003·Granted Sep 18, 2007·0 cites·15 claims
- 5040US5019630ARubbery copolymer, process for production thereof, and vulcanizable elastomer compositionNIPPON ZEON CO·Filed 1989·Granted May 28, 1991·5 cites·11 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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