Inventor
KOJIMA YOSHITAKA
JP35 patents
⚠️ This page may combine multiple inventors who share the name “KOJIMA YOSHITAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
25 patentsUS4873150AOct 10, 1989
High water-resistant member, and valve gear using the same for use in internal combustion engine
HITACHI LTD63 citations96
US5840434ANov 24, 1998
Thermal stress relaxation type ceramic coated heat-resistant element and method for producing the same
HITACHI LTD85 citations95
US5630314AMay 20, 1997
Thermal stress relaxation type ceramic coated heat-resistant element
HITACHI LTD84 citations95
US5209645AMay 11, 1993
Ceramics-coated heat resisting alloy member
HITACHI LTD58 citations94
US6248969B1Jun 19, 2001
Vacuum circuit breaker, and vacuum bulb and vacuum bulb electrode used therefor
HITACHI LTD24 citations92
US6048216AApr 11, 2000
Vacuum circuit breaker as well as vacuum valve and electric contact used in same
HITACHI LTD18 citations92
US5852266ADec 22, 1998
Vacuum circuit breaker as well as vacuum valve and electric contact used in same
HITACHI LTD32 citations92
US5557083ASep 17, 1996
Vacuum circuit breaker and electric contact
HITACHI LTD22 citations92
US5203984AApr 20, 1993
Monitoring system for plant operation condition and its in-situ electrochemical electrode
HITACHI LTD40 citations92
US6521293B1Feb 18, 2003
Method for producing a ceramic-coated blade of gas turbine
HITACHI LTD27 citations91
US6042951AMar 28, 2000
Ceramic-coated blade of gas turbine and method of producing same
HITACHI LTD30 citations91
US6452101B1Sep 17, 2002
Multi-core conductive wire and a method of manufacturing the same
HITACHI LTD32 citations90
US5507623AApr 16, 1996
Alloy-coated gas turbine blade and manufacturing method thereof
HITACHI LTD39 citations90
US4966820AOct 30, 1990
Ceramics-coated heat resisting alloy member
HITACHI LTD42 citations90
US5009070AApr 23, 1991
Combustion apparatus for gas turbine
HITACHI LTD20 citations82
US7162354B2Jan 9, 2007
Apparatus and method for determining date of gas turbine washing
HITACHI LTD8 citations74
US5697150ADec 16, 1997
Method forming an electric contact in a vacuum circuit breaker
HITACHI LTD17 citations73
US5242264ASep 7, 1993
Machine on ground provided with heat resistant wall used for isolating from environment and heat resistant wall used therefor
HITACHI LTD16 citations73
US4777396AOct 11, 1988
Rotor of induction motor
HITACHI LTD12 citations73
US4486462ADec 4, 1984
Method for coating by glow discharge
HITACHI LTD14 citations73
US7286966B2Oct 23, 2007
Rotation planning apparatus and rotation planning system
HITACHI LTD7 citations72
US5691521ANov 25, 1997
Vacuum circuit breaker with improved contact assembly
HITACHI LTD16 citations72
US5545484AAug 13, 1996
Heat and oxidation resistive high strength material and its production method
HITACHI LTD16 citations71
US7449251B2Nov 11, 2008
Heat resistant article having thermal barrier coating
HITACHI LTD3 citations62
US7901790B2Mar 8, 2011
High temperature component with thermal barrier coating and gas turbine using the same
HITACHI LTD6 citations59