Inventor · disambiguated record
Naoyuki Ogura
Also filed as: OGURA NAOYUKI
65 granted patents·3 pending applications·984 citations·filing 1990–2014
99Inventor score
Files withHITACHI LTD33NEC CORP9TERMINUS TECHNOLOGY LTD9HITACHI CONSUMER ELECTRONICS5TENRYU TECHNICS CO LTD4
Top patents by PatentIndex Score
68 records- 0196US6573950B1Optical projection apparatus, transmission type screen, and projection type image display apparatusHITACHI LTD·Filed 2000·Granted Jun 3, 2003·46 cites·5 claims
- 0295US6130786AProjection lens and image display deviceHITACHI LTD·Filed 1999·Granted Oct 10, 2000·125 cites·4 claims
- 0393US7535648B2Projection type image displayHITACHI LTD·Filed 2006·Granted May 19, 2009·20 cites·9 claims
- 0493US6396641B2Projection lens system and projection image display apparatus using the sameHITACHI LTD·Filed 2001·Granted May 28, 2002·41 cites·7 claims
- 0593US6299313B1Projection display apparatus and projection lens device for use thereinHITACHI LTD·Filed 2000·Granted Oct 9, 2001·52 cites·11 claims
- 0692US6295576B1Associative memory having a mask function for use in a network routerNEC CORP·Filed 1998·Granted Sep 25, 2001·96 cites·16 claims
- 0790US6894729B2Optical projection apparatus, transmission type screen, and projection type image display apparatusHITACHI LTD·Filed 2003·Granted May 17, 2005·21 cites·14 claims
- 0889US8690349B2Oblique projection optical system and projection type display apparatus using the sameHITACHI CONSUMER ELECTRONICS·Filed 2013·Granted Apr 8, 2014·9 cites·15 claims
- 0989US6956624B2Optical projection apparatus, transmission type screen, and projection type image display apparatusHITACHI LTD·Filed 2003·Granted Oct 18, 2005·20 cites·16 claims
- 1088US7081927B2Optical projection apparatus, transmission type screen, and projection type image display apparatusHITACHI LTD·Filed 2004·Granted Jul 25, 2006·17 cites·30 claims
- 1188US6768594B2Projection lens apparatus and rear projection type image display apparatus using the sameHITACHI LTD·Filed 2002·Granted Jul 27, 2004·40 cites·22 claims
- 1286US7586687B2Projecting optical unit and projecting type image display apparatus therewithHITACHI LTD·Filed 2005·Granted Sep 8, 2009·12 cites·11 claims
- 1385US9429832B2Oblique projection optical system and projection type display apparatus using the sameHITACHI CONSUMER ELECTRONICS·Filed 2014·Granted Aug 30, 2016·6 cites·15 claims
- 1481US8425049B2Oblique projection optical system and projection type display apparatus using the sameHIRATA KOJI·Filed 2009·Granted Apr 23, 2013·8 cites·10 claims
- 1581US6144574AAssociative memory with a shortest mask output function and search methodNEC CORP·Filed 1999·Granted Nov 7, 2000·48 cites·5 claims
- 1679US6542308B2Projection display apparatus and projection lens device for use thereinFiled 2001·Granted Apr 1, 2003·16 cites·6 claims
- 1778US7670007B2Projection display, projection optical system and transmission lens or free curved lensHITACHI LTD·Filed 2006·Granted Mar 2, 2010·8 cites·17 claims
- 1877US5500747AUltra-wide angle liquid crystal projector systemHITACHI LTD·Filed 1994·Granted Mar 19, 1996·43 cites·15 claims
- 1974US8585216B2Video projector which obliquely projects images onto screenONO CHOHEI·Filed 2010·Granted Nov 19, 2013·3 cites·8 claims
- 2073US5659424AProjecting lens and image display deviceHITACHI LTD·Filed 1994·Granted Aug 19, 1997·29 cites·28 claims
- 2172US7111942B2Reflection-type image projection unit and a reflection-type image display apparatus, and a light source device for use thereinHITACHI LTD·Filed 2002·Granted Sep 26, 2006·9 cites·10 claims
- 2270US7433121B2Projection type image display apparatusHITACHI LTD·Filed 2006·Granted Oct 7, 2008·3 cites·12 claims
- 2367US5946142AProjection lens system and projection image display apparatus using the sameHITACHI LTD·Filed 1996·Granted Aug 31, 1999·22 cites·11 claims
- 2466US7761599B2Associative memory having a mask function for use in a network deviceTERMINUS TECHNOLOGY LTD·Filed 2007·Granted Jul 20, 2010·2 cites·6 claims
- 2566US6829031B2Liquid crystal display apparatus and optical device for use thereinHITACHI LTD·Filed 2003·Granted Dec 7, 2004·5 cites·2 claims
- 2665US8082360B2Associative memory having a mask function for use in a network deviceOGURA NAOYUKI·Filed 2010·Granted Dec 20, 2011·2 cites·6 claims
- 2765US7961400B2Projecting optical unit and projecting type image display apparatus therewithHITACHI LTD·Filed 2009·Granted Jun 14, 2011·2 cites·7 claims
- 2865USD639076SMirror for projectorHITACHI CONSUMER ELECTRONICS·Filed 2010·Granted Jun 7, 2011·14 cites·1 claims
- 2965US7059725B2Reflection-type image projection unit and a reflection-type image display apparatus, and a light source device for use thereinHITACHI LTD·Filed 2004·Granted Jun 13, 2006·5 cites·9 claims
- 3064US8690345B2Projection image display apparatus having a first lens and a second lens adjacent to the screenHIRATA KOJI·Filed 2011·Granted Apr 8, 2014·1 cites·16 claims
- 3164US6801366B2Projection lens system and projection image display apparatus using the sameHITACHI LTD·Filed 2003·Granted Oct 5, 2004·3 cites·8 claims
- 3261US6342929B1Projection image display apparatusHITACHI LTD·Filed 2000·Granted Jan 29, 2002·5 cites·14 claims
- 3360US6980452B2Associative memory having a mask function for use in a network routerTERMINUS TECHNOLOGY LTD·Filed 2003·Granted Dec 27, 2005·11 cites·18 claims
- 3460US6059216ATaping member supporting device for an electronic component feeding apparatusTENRYU TECHNICS CO LTD·Filed 1998·Granted May 9, 2000·13 cites·3 claims
- 3559US7200712B2Associative memory system, network device, and network systemTERMINUS TECHNOLOGY LTD·Filed 2001·Granted Apr 3, 2007·7 cites·53 claims
- 3659US6256083B1Liquid crystal display apparatus and optical device for use thereinHITACHI LTD·Filed 1998·Granted Jul 3, 2001·19 cites·61 claims
- 3758US6624950B2Projection lens system and projection image display apparatus using the sameHITACHI LTD·Filed 2002·Granted Sep 23, 2003·3 cites·4 claims
- 3858US6535267B2Liquid crystal display apparatus having liquid crystal display element immersed in cooling mediumHITACHI LTD·Filed 2001·Granted Mar 18, 2003·4 cites·4 claims
- 3957US7397682B2Associative memory having a mask function for use in network devices and network systemTERMINUS TECHNOLOGY LTD·Filed 2005·Granted Jul 8, 2008·3 cites·13 claims
- 4057US5600595ANon-volatile semiconductor device with an electrically erasable and programmable read only memory showing an extremely high speed batch erasure operationNEC CORP·Filed 1995·Granted Feb 4, 1997·18 cites·6 claims
- 4157US5290081AChip mounterTENRYU TECHNICS CO LTD·Filed 1992·Granted Mar 1, 1994·25 cites·3 claims
- 4256US5818754ANonvolatile memory having data storing area and attribute data area for storing attribute data of data storing areaNEC CORP·Filed 1996·Granted Oct 6, 1998·16 cites·22 claims
- 4355US6869184B2Polarized-light converting unit and projector using the sameHITACHI LTD·Filed 2003·Granted Mar 22, 2005·4 cites·15 claims
- 4454US7287120B2Associative memory and its retrieving method and router and network systemTERMINUS TECHNOLOGY LTD·Filed 2001·Granted Oct 23, 2007·2 cites·10 claims
- 4552US6570866B1High-speed flexible longest match retrievalNEC CORP·Filed 1999·Granted May 27, 2003·29 cites·27 claims
- 4651US8169708B2Projecting optical unit and projecting type image display apparatus therewithYOSHIKAWA HIROKI·Filed 2011·Granted May 1, 2012·0 cites·3 claims
- 4750US7397683B2Associative memory having a mask function for use in a network routerTERMINUS TECHNOLOGY LTD·Filed 2007·Granted Jul 8, 2008·0 cites·18 claims
- 4849US6124979AProjection display apparatus and projection lens device for use thereinHITACHI LTD·Filed 1998·Granted Sep 26, 2000·10 cites·29 claims
- 4949US6046860AProjection lens system and projection image display apparatus using the sameHITACHI LTD·Filed 1999·Granted Apr 4, 2000·8 cites·30 claims
- 5048US7347566B2Projection lens unit and rear projection type image display systemHITACHI LTD·Filed 2007·Granted Mar 25, 2008·0 cites·18 claims
Showing the top 50 of 68 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →