Inventor
OGURA NAOYUKI
JP66 patents
⚠️ This page may combine multiple inventors who share the name “OGURA NAOYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
26 patentsUS6130786AOct 10, 2000
Projection lens and image display device
HITACHI LTD125 citations99
US6573950B1Jun 3, 2003
Optical projection apparatus, transmission type screen, and projection type image display apparatus
HITACHI LTD46 citations96
US6396641B2May 28, 2002
Projection lens system and projection image display apparatus using the same
HITACHI LTD41 citations96
US6299313B1Oct 9, 2001
Projection display apparatus and projection lens device for use therein
HITACHI LTD52 citations96
US7535648B2May 19, 2009
Projection type image display
HITACHI LTD20 citations93
US7081927B2Jul 25, 2006
Optical projection apparatus, transmission type screen, and projection type image display apparatus
HITACHI LTD17 citations93
US6956624B2Oct 18, 2005
Optical projection apparatus, transmission type screen, and projection type image display apparatus
HITACHI LTD20 citations93
US6894729B2May 17, 2005
Optical projection apparatus, transmission type screen, and projection type image display apparatus
HITACHI LTD21 citations93
US5946142AAug 31, 1999
Projection lens system and projection image display apparatus using the same
HITACHI LTD22 citations93
US6768594B2Jul 27, 2004
Projection lens apparatus and rear projection type image display apparatus using the same
HITACHI LTD40 citations92
US6256083B1Jul 3, 2001
Liquid crystal display apparatus and optical device for use therein
HITACHI LTD19 citations92
US5659424AAug 19, 1997
Projecting lens and image display device
HITACHI LTD29 citations92
US5500747AMar 19, 1996
Ultra-wide angle liquid crystal projector system
HITACHI LTD43 citations92
US7670007B2Mar 2, 2010
Projection display, projection optical system and transmission lens or free curved lens
HITACHI LTD8 citations84
US7586687B2Sep 8, 2009
Projecting optical unit and projecting type image display apparatus therewith
HITACHI LTD12 citations84
US7111942B2Sep 26, 2006
Reflection-type image projection unit and a reflection-type image display apparatus, and a light source device for use therein
HITACHI LTD9 citations74
US6829031B2Dec 7, 2004
Liquid crystal display apparatus and optical device for use therein
HITACHI LTD5 citations74
US6624950B2Sep 23, 2003
Projection lens system and projection image display apparatus using the same
HITACHI LTD3 citations74
US6124979ASep 26, 2000
Projection display apparatus and projection lens device for use therein
HITACHI LTD10 citations74
US6046860AApr 4, 2000
Projection lens system and projection image display apparatus using the same
HITACHI LTD8 citations74
US5933280AAug 3, 1999
Projection lens and image display device
HITACHI LTD7 citations74
US7961400B2Jun 14, 2011
Projecting optical unit and projecting type image display apparatus therewith
HITACHI LTD2 citations63
US7059725B2Jun 13, 2006
Reflection-type image projection unit and a reflection-type image display apparatus, and a light source device for use therein
HITACHI LTD5 citations63
US6869184B2Mar 22, 2005
Polarized-light converting unit and projector using the same
HITACHI LTD4 citations63
US6801366B2Oct 5, 2004
Projection lens system and projection image display apparatus using the same
HITACHI LTD3 citations63
US6535267B2Mar 18, 2003
Liquid crystal display apparatus having liquid crystal display element immersed in cooling medium
HITACHI LTD4 citations63
NEC CORP
9 patentsUS6295576B1Sep 25, 2001
Associative memory having a mask function for use in a network router
NEC CORP96 citations98
US6570866B1May 27, 2003
High-speed flexible longest match retrieval
NEC CORP29 citations92
US6144574ANov 7, 2000
Associative memory with a shortest mask output function and search method
NEC CORP48 citations92
US5600595AFeb 4, 1997
Non-volatile semiconductor device with an electrically erasable and programmable read only memory showing an extremely high speed batch erasure operation
NEC CORP18 citations84
US6138138AOct 24, 2000
High speed multiple determination apparatus
NEC CORP12 citations74
US5818754AOct 6, 1998
Nonvolatile memory having data storing area and attribute data area for storing attribute data of data storing area
NEC CORP16 citations74
US5544244AAug 6, 1996
Method for protecting an enciphered computer object code against cryptanalysis
NEC CORP15 citations74
US5479365ADec 26, 1995
Exponentiation remainder operation circuit
NEC CORP12 citations74
US6052370AApr 18, 2000
Moving image communication system and method for performing image communication
NEC CORP5 citations63
TERMINUS TECHNOLOGY LTD
7 patentsUS7200712B2Apr 3, 2007
Associative memory system, network device, and network system
TERMINUS TECHNOLOGY LTD7 citations74
US6980452B2Dec 27, 2005
Associative memory having a mask function for use in a network router
TERMINUS TECHNOLOGY LTD11 citations74
US7761599B2Jul 20, 2010
Associative memory having a mask function for use in a network device
TERMINUS TECHNOLOGY LTD2 citations63
US7397682B2Jul 8, 2008
Associative memory having a mask function for use in network devices and network system
TERMINUS TECHNOLOGY LTD3 citations63
US7287120B2Oct 23, 2007
Associative memory and its retrieving method and router and network system
TERMINUS TECHNOLOGY LTD2 citations63
US6956756B2Oct 18, 2005
Associative memory, method for searching the same, network device, and network system
TERMINUS TECHNOLOGY LTD4 citations63
US6910105B2Jun 21, 2005
Associative memory having a mask function for use in a network router
TERMINUS TECHNOLOGY LTD5 citations63
TENRYU TECHNICS CO LTD
3 patentsHITACHI CONSUMER ELECTRONICS
3 patentsUS9429832B2Aug 30, 2016
Oblique projection optical system and projection type display apparatus using the same
HITACHI CONSUMER ELECTRONICS6 citations84
US8690349B2Apr 8, 2014
Oblique projection optical system and projection type display apparatus using the same
HITACHI CONSUMER ELECTRONICS9 citations84
USD639076SJun 7, 2011
Mirror for projector
HITACHI CONSUMER ELECTRONICS14 citations83
(unassigned)
1 patentHIRATA KOJI
1 patentShowing the top 50 of 66 patents by PatentIndex Score.