Inventor · disambiguated record
Masahiko Sakamoto
Also filed as: SAKAMOTO MASAHIKO
24 granted patents·677 citations·filing 1982–2009
97Inventor score
Top patents by PatentIndex Score
24 records- 0197US6299050B1Friction stir welding apparatus and methodHITACHI LTD·Filed 2000·Granted Oct 9, 2001·127 cites·12 claims
- 0296US6875951B2Laser machining deviceMITSUBISHI ELECTRIC CORP·Filed 2001·Granted Apr 5, 2005·135 cites·18 claims
- 0384US6595403B2Friction stir welding methodHITACHI LTD·Filed 2001·Granted Jul 22, 2003·27 cites·3 claims
- 0483US5621243ASemiconductor device having thermal stress resistance structureHITACHI LTD·Filed 1994·Granted Apr 15, 1997·80 cites·32 claims
- 0583US5051397AJoined body of high-temperature oxide superconductor and method of joining oxide superconductorsHITACHI LTD·Filed 1989·Granted Sep 24, 1991·35 cites·7 claims
- 0678US7262710B2Collision time estimation apparatus for vehicles, collision time estimation method for vehicles, collision alarm apparatus for vehicles, and collision alarm method for vehiclesNISSAN MOTOR·Filed 2005·Granted Aug 28, 2007·19 cites·13 claims
- 0776US7612331B2Code disk with a plurality of tracks having different patternsMITSUBISHI ELECTRIC CORP·Filed 2007·Granted Nov 3, 2009·2 cites·24 claims
- 0876US6690024B1Laser inspection apparatusMITSUBISHI ELECTRIC CORP·Filed 2000·Granted Feb 10, 2004·15 cites·12 claims
- 0975US7097091B2Friction stir welding method and component part welded by the methodHITACHI LTD·Filed 2002·Granted Aug 29, 2006·18 cites·2 claims
- 1075US6739495B2Friction stir welding method and component part welded by the methodHITACHI LTD·Filed 2003·Granted May 25, 2004·19 cites·5 claims
- 1166US4654506AMethod and apparatus for detecting and regulating position of welding electron beamMITSUBISHI ELECTRIC CORP·Filed 1985·Granted Mar 31, 1987·21 cites·12 claims
- 1262US5092366AAir pipe for a lighting fixture for a vehicleSTANLEY ELECTRIC CO LTD·Filed 1990·Granted Mar 3, 1992·22 cites·5 claims
- 1361US6972402B2Photoelectric rotary encoderMITSUBISHI ELECTRIC CORP·Filed 2003·Granted Dec 6, 2005·8 cites·15 claims
- 1458US5699936ALiquid dispensing systemSERCOMP CORP·Filed 1995·Granted Dec 23, 1997·44 cites·12 claims
- 1558US5231366ASuperconducting magnetic field generating apparatus and method of producing the sameHITACHI LTD·Filed 1991·Granted Jul 27, 1993·23 cites·17 claims
- 1657US7538313B2Optical 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 lightMITSUBISHI ELECTRIC CORP·Filed 2007·Granted May 26, 2009·2 cites·1 claims
- 1757US4879473AElectron-beam exposure apparatusMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Nov 7, 1989·9 cites·3 claims
- 1856US4465530AGas turbine nozzle having superior thermal fatigue resistanceHITACHI LTD·Filed 1982·Granted Aug 14, 1984·10 cites·14 claims
- 1953US7907505B2Code disk with a plurality of tracks having different patternsMITSUBISHI ELECTRIC CORP·Filed 2009·Granted Mar 15, 2011·1 cites·16 claims
- 2053US7285769B2Optical encoder with reduced reflected light error having a light non-transparent portion with inclined surfacesMITSUBISHI ELECTRIC CORP·Filed 2004·Granted Oct 23, 2007·5 cites·7 claims
- 2153US7193962B2Code disk with a plurality of tracks having different patternsMITSUBISHI ELECTRIC CORP·Filed 2002·Granted Mar 20, 2007·4 cites·7 claims
- 2247US5481095ACode reading pattern and an image pickup apparatus for reading the patternMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Jan 2, 1996·21 cites·18 claims
- 2347US4988194AOptical storage inspection unit calibration diskKYOCERA CORP·Filed 1988·Granted Jan 29, 1991·15 cites·7 claims
- 2444US4615658AShroud for gas turbinesHITACHI LTD·Filed 1985·Granted Oct 7, 1986·15 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →