Inventor · disambiguated record
Tsutomu Yamashita
Also filed as: YAMASHITA TSUTOMU · YAMASHITA TSUTOMU T · YAMASHITA TSUTOMU TOM
48 granted patents·2 pending applications·2,713 citations·filing 1979–2018
99Inventor score
Top patents by PatentIndex Score
50 records- 0197US7372053B2Rotating gantry of particle beam therapy systemHITACHI LTD·Filed 2006·Granted May 13, 2008·211 cites·12 claims
- 0297US6500567B1Ultra-thin nucleation layer for magnetic thin film media and the method for manufacturing the sameKOMAG INC·Filed 2000·Granted Dec 31, 2002·86 cites·13 claims
- 0397US6150015AUltra-thin nucleation layer for magnetic thin film media and the method for manufacturing the sameKOMAG INC·Filed 1997·Granted Nov 21, 2000·151 cites·52 claims
- 0497US6086730AMethod of sputtering a carbon protective film on a magnetic disk with high sp3 contentKOMAG INC·Filed 1999·Granted Jul 11, 2000·160 cites·67 claims
- 0596US4786564AMethod for manufacturing a magnetic disk having reduced bit shift, minimized noise, increased resolution and uniform magnetic characteristics, and the resulting diskKOMAG INC·Filed 1987·Granted Nov 22, 1988·74 cites·27 claims
- 0695US7961844B2Rotating irradiation therapy apparatusHITACHI LTD·Filed 2007·Granted Jun 14, 2011·155 cites·6 claims
- 0795US7381979B2Rotating irradiation apparatusHITACHI LTD·Filed 2006·Granted Jun 3, 2008·167 cites·36 claims
- 0895US6682807B2Magnetic disk comprising a first carbon overcoat having a high SP3 content and a second carbon overcoat having a low SP3 contentKOMAG INC·Filed 2002·Granted Jan 27, 2004·83 cites·21 claims
- 0995US6565719B1Magnetic disk comprising a first carbon overcoat having a high SP3 content and a second carbon overcoat having a low SP3 contentKOMAG INC·Filed 2000·Granted May 20, 2003·88 cites·41 claims
- 1095US5045165AMethod for sputtering a hydrogen-doped carbon protective film on a magnetic diskKOMAG INC·Filed 1990·Granted Sep 3, 1991·70 cites·11 claims
- 1194US6013161AThin film magnetic alloy having low noise, high coercivity and high squarenessKOMAG INC·Filed 1997·Granted Jan 11, 2000·88 cites·17 claims
- 1294US5507930AMethod of sputtering a carbon protective film on a magnetic disk by superimposing an AC voltage on a DC bias voltageKOMAG INC·Filed 1994·Granted Apr 16, 1996·101 cites·16 claims
- 1393US6855232B2Magnetic disk comprising a first carbon overcoat having a high SP3 content and a second carbon overcoat having a low SP3 contentKOMAG INC·Filed 2003·Granted Feb 15, 2005·79 cites·32 claims
- 1491US6803591B2Medical particle irradiation apparatusHITACHI LTD·Filed 2003·Granted Oct 12, 2004·195 cites·9 claims
- 1590US6117499AMicro-texture media made by polishing of a selectively irradiated surfaceKOMAG INC·Filed 1998·Granted Sep 12, 2000·106 cites·16 claims
- 1689US5673156AHard disk drive system having virtual contact recordingKOMAG INC·Filed 1995·Granted Sep 30, 1997·73 cites·52 claims
- 1789US4762695AMethods for preparing high-purity molybdenum or tungsten powder and high-purity oxides powder of the sameTOSHIBA KK·Filed 1987·Granted Aug 9, 1988·38 cites·22 claims
- 1888US7030396B2Medical particle irradiation apparatusHITACHI SETSUBI ENG KK·Filed 2003·Granted Apr 18, 2006·148 cites·7 claims
- 1985US6903356B2Medical particle irradiation apparatusHITACHI SETSUBI ENG KK·Filed 2003·Granted Jun 7, 2005·119 cites·3 claims
- 2084US5180640AMagnetic recording medium comprising a magnetic alloy layer of cobalt nickel, platinum and chromium formed directly on a nickel alloy amorphous underlayerKOMAG INC·Filed 1990·Granted Jan 19, 1993·36 cites·26 claims
- 2180US8956741B1Magnetic recording media with small grain size and narrow c-axis dispersion by using dual seed layer with substrate biasLI TUQIANG·Filed 2011·Granted Feb 17, 2015·7 cites·14 claims
- 2280US5032926AVideo tape recorder having picture-in-picture functionSONY CORP·Filed 1989·Granted Jul 16, 1991·25 cites·6 claims
- 2380US4898774ACorrosion and wear resistant magnetic diskKOMAG INC·Filed 1986·Granted Feb 6, 1990·25 cites·27 claims
- 2480US4749459AMethod for manufacturing a thin film magnetic recording mediumKOMAG INC·Filed 1986·Granted Jun 7, 1988·26 cites·17 claims
- 2577US10695587B2Particle beam therapy system having X-ray detectors attached to a particle beam irradiation systemHITACHI LTD·Filed 2018·Granted Jun 30, 2020·3 cites·18 claims
- 2676USRE38544EThin film magnetic alloy having low noise, high coercivity and high squarenessKOMAG INC·Filed 2000·Granted Jul 6, 2004·12 cites·26 claims
- 2776US5851688AThin film magnetic alloy having low noise, high coercivity, and high squarenessKOMAG INC·Filed 1997·Granted Dec 22, 1998·25 cites·19 claims
- 2875US4830821AProcess of making a contact forming material for a vacuum valveTOSHIBA KK·Filed 1988·Granted May 16, 1989·18 cites·7 claims
- 2974US5658659AMagnetic alloy and method for manufacturing sameKOMAG INC·Filed 1994·Granted Aug 19, 1997·34 cites·21 claims
- 3073US6573526B1Single electron tunneling transistor having multilayer structureJAPAN SCIENCE & TECH CORP·Filed 2000·Granted Jun 3, 2003·18 cites·1 claims
- 3171US5397644AMagnetic disk having a sputtered hydrogen-doped carbon protective filmKOMAG INC·Filed 1993·Granted Mar 14, 1995·28 cites·11 claims
- 3270US4777335AContact forming material for a vacuum valveTOSHIBA KK·Filed 1987·Granted Oct 11, 1988·15 cites·7 claims
- 3367US5482573AMagnetic materialTOSHIBA KK·Filed 1992·Granted Jan 9, 1996·20 cites·27 claims
- 3466US5903399AUV-curable Fresnel lens resin composition, Fresnel lens, and back projection screenSANYO CHEMICAL IND LTD·Filed 1998·Granted May 11, 1999·28 cites·6 claims
- 3565US6605225B1Method and apparatus for fabricating three dimensional element from anisotropic materialJAPAN SCIENCE & TECH CORP·Filed 2000·Granted Aug 12, 2003·20 cites·19 claims
- 3663US5695387ACSS magnetic recording head slider and method of making sameKOMAG INC·Filed 1995·Granted Dec 9, 1997·20 cites·20 claims
- 3762US5153044AMagnetic disk for longitudinal recording comprising an amorphous intermediate layerKOMAG INC·Filed 1991·Granted Oct 6, 1992·23 cites·41 claims
- 3861US5976326AMethod of sputtering selected oxides and nitrides for forming magnetic mediaKOMAG INC·Filed 1997·Granted Nov 2, 1999·19 cites·14 claims
- 3961US5736013AMethod for forming an improved magnetic media including sputtering of selected oxides or nitrides in the magnetic layer, and apparatus for sameKOMAG INC·Filed 1997·Granted Apr 7, 1998·20 cites·10 claims
- 4060US4988578AMethod for manufacturing a thin film magnetic recording mediumKOMAG INC·Filed 1990·Granted Jan 29, 1991·19 cites·11 claims
- 4159US5805358AUV-curable fresnel lens resin composition, fresnel lens, and back projection screenSANYO CHEMICAL IND LTD·Filed 1996·Granted Sep 8, 1998·20 cites·12 claims
- 4259US5631094AMagnetic alloy for improved corrosion resistance and magnetic performanceKOMAG INC·Filed 1994·Granted May 20, 1997·17 cites·3 claims
- 4355US4985117AMethod of manufacturing josephson junctionsRIKEN KK·Filed 1990·Granted Jan 15, 1991·13 cites·13 claims
- 4454US4929500ACorrosion resistant magnetic diskKOMAG INC·Filed 1986·Granted May 29, 1990·9 cites·15 claims
- 4549US4414487ASuperconducting electron beam generatorTECHNOLOGICAL UNIVERSITY OF NA·Filed 1981·Granted Nov 8, 1983·8 cites·4 claims
- 4645US2017001041A1Particle beam therapy systemHITACHI LTD·Filed 2016·Application pending·0 cites
- 4743US4315215APlural frequency type superconducting quantum interference fluxmeterUNIV TOHOKU·Filed 1979·Granted Feb 9, 1982·6 cites·6 claims
- 4841US7008906B2Oxide high-critical temperature superconductor acicular crystal and its production methodJAPAN SCIENCE & TECH AGENCY·Filed 2002·Granted Mar 7, 2006·0 cites·3 claims
- 4941US5908514AMagnetic alloy for improved corrosion resistance and magnetic performanceFiled 1996·Granted Jun 1, 1999·7 cites·15 claims
- 5036US2005215436A1High temperature super conductive josephson tunnel junctionTAKANO YOSHIHIKO·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →