Inventor
SAKAMOTO MASAHIKO
JP24 patents
⚠️ This page may combine multiple inventors who share the name “SAKAMOTO MASAHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC CORP
11 patentsUS6875951B2Apr 5, 2005
Laser machining device
MITSUBISHI ELECTRIC CORP135 citations96
US5481095AJan 2, 1996
Code reading pattern and an image pickup apparatus for reading the pattern
MITSUBISHI ELECTRIC CORP21 citations92
US6690024B1Feb 10, 2004
Laser inspection apparatus
MITSUBISHI ELECTRIC CORP15 citations83
US4654506AMar 31, 1987
Method and apparatus for detecting and regulating position of welding electron beam
MITSUBISHI ELECTRIC CORP21 citations81
US6972402B2Dec 6, 2005
Photoelectric rotary encoder
MITSUBISHI ELECTRIC CORP8 citations73
US4879473ANov 7, 1989
Electron-beam exposure apparatus
MITSUBISHI ELECTRIC CORP9 citations73
US7193962B2Mar 20, 2007
Code disk with a plurality of tracks having different patterns
MITSUBISHI ELECTRIC CORP4 citations71
US7907505B2Mar 15, 2011
Code disk with a plurality of tracks having different patterns
MITSUBISHI ELECTRIC CORP1 citations60
US7612331B2Nov 3, 2009
Code disk with a plurality of tracks having different patterns
MITSUBISHI ELECTRIC CORP2 citations60
US7538313B2May 26, 2009
Optical encoder having a no track portion of an optical scale being placed at a position symmetrical to a light non-transparent portion within an irradiation region of incident light
MITSUBISHI ELECTRIC CORP2 citations60
US7285769B2Oct 23, 2007
Optical encoder with reduced reflected light error having a light non-transparent portion with inclined surfaces
MITSUBISHI ELECTRIC CORP5 citations60
HITACHI LTD
9 patentsUS6299050B1Oct 9, 2001
Friction stir welding apparatus and method
HITACHI LTD127 citations98
US5621243AApr 15, 1997
Semiconductor device having thermal stress resistance structure
HITACHI LTD80 citations95
US7097091B2Aug 29, 2006
Friction stir welding method and component part welded by the method
HITACHI LTD18 citations92
US6739495B2May 25, 2004
Friction stir welding method and component part welded by the method
HITACHI LTD19 citations92
US6595403B2Jul 22, 2003
Friction stir welding method
HITACHI LTD27 citations92
US5051397ASep 24, 1991
Joined body of high-temperature oxide superconductor and method of joining oxide superconductors
HITACHI LTD35 citations92
US5231366AJul 27, 1993
Superconducting magnetic field generating apparatus and method of producing the same
HITACHI LTD23 citations90
US4615658AOct 7, 1986
Shroud for gas turbines
HITACHI LTD15 citations73
US4465530AAug 14, 1984
Gas turbine nozzle having superior thermal fatigue resistance
HITACHI LTD10 citations73