Inventor
OKAMURA HISANORI
38 patents
⚠️ This page may combine multiple inventors who share the name “OKAMURA HISANORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
37 patentsUS7036707B2May 2, 2006
Friction stir welding method, frame members used therein, and product formed thereby
HITACHI LTD76 citations99
US6594149B2Jul 15, 2003
Liquid cooled circuit device
HITACHI LTD99 citations98
US6588647B2Jul 8, 2003
Liquid cooled circuit device and a manufacturing method thereof
HITACHI LTD80 citations98
US6299050B1Oct 9, 2001
Friction stir welding apparatus and method
HITACHI LTD127 citations98
US6555779B1Apr 29, 2003
Underwater processing device and underwater processing method
HITACHI LTD81 citations97
US6305866B1Oct 23, 2001
Structure joined by friction stir welding
HITACHI LTD60 citations97
US6237829B1May 29, 2001
Friction stir welding apparatus
HITACHI LTD59 citations97
US6050474AApr 18, 2000
Friction stir welding method, frame members used therein, and product formed thereby
HITACHI LTD222 citations97
US6619534B2Sep 16, 2003
Friction stir welding method using members which overlap and have protrusion at the weld location prior to the welding
HITACHI LTD22 citations96
US6585443B2Jul 1, 2003
Structural body formed by friction stir welding two members, one of which has a protruding portion
HITACHI LTD22 citations96
US6419144B2Jul 16, 2002
Method of forming structural body using friction stir welding, and structural body formed
HITACHI LTD32 citations96
US6382498B2May 7, 2002
Friction stir welding method including positioning of rotary tool, and structural body formed thereby
HITACHI LTD37 citations96
US6378754B2Apr 30, 2002
Friction stir welding method including removal of protruding portion, and structural body formed thereby
HITACHI LTD32 citations96
US6146094ANov 14, 2000
Motor-driven blower and method of manufacturing impeller for motor-driven blower
HITACHI LTD83 citations95
US5621243AApr 15, 1997
Semiconductor device having thermal stress resistance structure
HITACHI LTD80 citations95
US5325012AJun 28, 1994
Bonded type piezoelectric apparatus, method for manufacturing the same and bonded type piezoelectric element
HITACHI LTD110 citations95
US7097091B2Aug 29, 2006
Friction stir welding method and component part welded by the method
HITACHI LTD18 citations92
US6936332B2Aug 30, 2005
Extruded frame member for use in friction stir welding
HITACHI LTD17 citations92
US6866181B2Mar 15, 2005
Friction stir welding method
HITACHI LTD47 citations92
US6739495B2May 25, 2004
Friction stir welding method and component part welded by the method
HITACHI LTD19 citations92
US6607837B2Aug 19, 2003
Structural body formed by friction stir welding method
HITACHI LTD15 citations92
US6595403B2Jul 22, 2003
Friction stir welding method
HITACHI LTD27 citations92
US6585148B2Jul 1, 2003
Welding processes for iron-base ultra fine grained materials and structural components manufactured by the processes
HITACHI LTD40 citations92
US5051397ASep 24, 1991
Joined body of high-temperature oxide superconductor and method of joining oxide superconductors
HITACHI LTD35 citations92
US6729526B2May 4, 2004
Friction stir welding apparatus and method and processing apparatus and method
HITACHI LTD40 citations91
US6540128B2Apr 1, 2003
Friction stir welding method and apparatus, and welded structure
HITACHI LTD19 citations91
US5654992AAug 5, 1997
Method of repairing structural materials of nuclear reactor internals and apparatus therefor
HITACHI LTD25 citations91
US4690793ASep 1, 1987
Nuclear fusion reactor
HITACHI LTD35 citations91
US3975612AAug 17, 1976
Welding method for dissimilar metals
HITACHI LTD51 citations89
US7480992B2Jan 27, 2009
Cooling plate and manufacturing method thereof, and sputtering target and manufacturing method thereof
HITACHI LTD17 citations84
US6722286B2Apr 20, 2004
Structure and railway car
HITACHI LTD18 citations84
US6640515B1Nov 4, 2003
Frame member used in friction stir welding
HITACHI LTD12 citations82
US4636434AJan 13, 1987
Ceramic composite article
HITACHI LTD24 citations80
US6783055B2Aug 31, 2004
Friction stir welding method and rotary tool
HITACHI LTD10 citations74
US6716538B2Apr 6, 2004
Structural body formed by friction stir welding
HITACHI LTD2 citations74
US3999030ADec 21, 1976
Welding method for dissimilar metals
HITACHI LTD14 citations72
US6715665B2Apr 6, 2004
Friction stir welding method and apparatus, and welded structure
HITACHI LTD4 citations61