Assignee
NAT AEROSPACE LAB
JP43 patents
Top patents by PatentIndex Score
US6430475B2Aug 6, 2002
Pressure-distribution sensor for controlling multi-jointed nursing robot
NAT AEROSPACE LAB170 citations96
US5797105AAug 18, 1998
Air active control aircraft using three dimensional true airspeed detection system
NAT AEROSPACE LAB127 citations96
US4749898AJun 7, 1988
Superprecision positioning device
NAT AEROSPACE LAB62 citations96
US5627311AMay 6, 1997
Transportable three-dimensional calibration wind tunnel system, verification method of flight control system and flight simulator using same
NAT AEROSPACE LAB41 citations95
US4751099AJun 14, 1988
Method of producing a functionally gradient material
NAT AEROSPACE LAB114 citations95
US6263444B1Jul 17, 2001
Network unauthorized access analysis method, network unauthorized access analysis apparatus utilizing the method, and computer-readable recording medium having network unauthorized access analysis program recorded thereon
NAT AEROSPACE LAB65 citations94
US5005786AApr 9, 1991
Docking and active damping device for space structures
NAT AEROSPACE LAB69 citations94
US4885491ADec 5, 1989
Unstable vibration prevention apparatus for magnetic bearing system
NAT AEROSPACE LAB37 citations93
US6889495B2May 10, 2005
Gas turbine combustor
NAT AEROSPACE LAB38 citations92
US6797390B2Sep 28, 2004
Functional polymer with supported pressure-sensitive luminophore, and pressure-sensitive paint and pressure-sensitive element using same
NAT AEROSPACE LAB19 citations92
US5501114AMar 26, 1996
Three-dimensional free motion apparatus
NAT AEROSPACE LAB50 citations92
US5429875AJul 4, 1995
Mounting object provided with a metallic heat-resistant two-dimensional fastener
NAT AEROSPACE LAB34 citations92
US5866813AFeb 2, 1999
Transportable three-dimensional calibration wind tunnel system, verification method of flight control system using said system and flight simulator using said system
NAT AEROSPACE LAB31 citations91
US5756891AMay 26, 1998
Verification method of a flight control system using a transportable wind tunnel
NAT AEROSPACE LAB20 citations91
US4584171AApr 22, 1986
Method of producing rocket combustors
NAT AEROSPACE LAB29 citations91
US4183716AJan 15, 1980
Air-cooled turbine blade
NAT AEROSPACE LAB82 citations91
US6922610B2Jul 26, 2005
Robot having offset rotary joints
NAT AEROSPACE LAB45 citations90
US6834495B2Dec 28, 2004
Multi-fan system separated core engine type turbofan engine
NAT AEROSPACE LAB19 citations90
US6792746B2Sep 21, 2004
Separated core engine type turbofan engine
NAT AEROSPACE LAB20 citations90
US6751532B2Jun 15, 2004
Wind turbulence prediction system
NAT AEROSPACE LAB35 citations90
US5248133ASep 28, 1993
Multidimensional damping apparatus
NAT AEROSPACE LAB42 citations90
US5229839AJul 20, 1993
Method and apparatus for measuring the size of a single fine particle and the size distribution of fine particles
NAT AEROSPACE LAB24 citations90
US4582678AApr 15, 1986
Method of producing rocket combustors
NAT AEROSPACE LAB37 citations90
US4703620ANov 3, 1987
Rocket combustion chamber cooling wall of composite cooling type and method of manufacturing the same
NAT AEROSPACE LAB50 citations89
US6176130B1Jan 23, 2001
Flight velocity vector measuring system in wide velocity region using truncated pyramid-shape probe
NAT AEROSPACE LAB24 citations88
US4778649AOct 18, 1988
Method of producing composite materials
NAT AEROSPACE LAB49 citations88
US6694808B2Feb 24, 2004
Method and apparatus for reducing pressure fluctuations in supersonic wind tunnel circuit
NAT AEROSPACE LAB20 citations86
US4732531AMar 22, 1988
Air sealed turbine blades
NAT AEROSPACE LAB30 citations86
US6786430B2Sep 7, 2004
Liquid atomizing nozzle
NAT AEROSPACE LAB17 citations84
US6427519B2Aug 6, 2002
Road surface friction measuring method and device therefor
NAT AEROSPACE LAB21 citations84
US6976401B2Dec 20, 2005
Offset rotary joint unit equipped with rotation correction mechanism
NAT AEROSPACE LAB16 citations81
US6811271B2Nov 2, 2004
Electromagnetic wave focusing device
NAT AEROSPACE LAB16 citations80
US6847326B2Jan 25, 2005
GPS device for measuring wave height and current direction and speed and GPS system for measuring wave height and current direction and speed
NAT AEROSPACE LAB19 citations79
US6772856B2Aug 10, 2004
Fine jet control-type sound absorption system
NAT AEROSPACE LAB12 citations74
US4920290AApr 24, 1990
Active magnetic bearing apparatus
NAT AEROSPACE LAB10 citations72
US4508680AApr 2, 1985
Method of manufacturing a rocket combustion chamber
NAT AEROSPACE LAB12 citations71
US6981364B2Jan 3, 2006
Combine engine for single-stage spacecraft
NAT AEROSPACE LAB10 citations70
US6834493B2Dec 28, 2004
System for reducing pump cavitation
NAT AEROSPACE LAB9 citations69
US6647798B2Nov 18, 2003
Bearing load measuring system using double-cylinder type cartridge
NAT AEROSPACE LAB8 citations69
US7210897B2May 1, 2007
Actively-controlled sound absorption panel system using movement-controlled reflective plate
NAT AEROSPACE LAB5 citations63
US6884021B2Apr 26, 2005
Single cascade multistage turbine
NAT AEROSPACE LAB5 citations63
US5531957AJul 2, 1996
Method for manufacturing a mounting object provided with a metallic heat-resistant two-dimensional fastener
NAT AEROSPACE LAB2 citations63
US7061692B2Jun 13, 2006
Ultra-lightweight electromagnetic wave concentrator and method for manufacture thereof
NAT AEROSPACE LAB4 citations54