Inventor · disambiguated record
Masahiro Tobise
Also filed as: TOBISE MASAHIRO
15 granted patents·1 pending application·319 citations·filing 1976–2017
93Inventor score
Top patents by PatentIndex Score
16 records- 0189US6028779APower inverter deviceHITACHI LTD·Filed 1998·Granted Feb 22, 2000·96 cites·33 claims
- 0286US4562390AInsulation resistance measurement in static leonard apparatusHITACHI LTD·Filed 1984·Granted Dec 31, 1985·44 cites·6 claims
- 0383US6421519B1Magnet roll having an anisotropic bonded magnet portion containing rare earth-iron-nitrogen magnet powderHITACHI METALS LTD·Filed 2000·Granted Jul 16, 2002·22 cites·6 claims
- 0475US5545957AMotor speed controller for suppressing shaft torsion vibrationHITACHI LTD·Filed 1994·Granted Aug 13, 1996·38 cites·12 claims
- 0573US6413327B1Nitride type, rare earth magnet materials and bonded magnets formed therefromHITACHI METALS LTD·Filed 1999·Granted Jul 2, 2002·27 cites·9 claims
- 0672US5748416AMagnetoresistive playback headHITACHI METALS LTD·Filed 1997·Granted May 5, 1998·30 cites·26 claims
- 0768US6537463B2Resin-bonded magnet, its product, and ferrite magnet powder and compound used thereforHITACHI METALS LTD·Filed 2000·Granted Mar 25, 2003·11 cites·17 claims
- 0862US5245257AControl systemHITACHI LTD·Filed 1991·Granted Sep 14, 1993·11 cites·24 claims
- 0953US4814678ASpeed control apparatus for motorHITACHI LTD·Filed 1987·Granted Mar 21, 1989·13 cites·5 claims
- 1050US5256944AMotor speed control method and apparatus with drooping compensation independent of acceleration or deceleration current and time constant of motorHITACHI LTD·Filed 1991·Granted Oct 26, 1993·17 cites·38 claims
- 1147US10681468B2Speaker diaphragm and coil coupling arrangement, and methodYAMAHA CORP·Filed 2017·Granted Jun 9, 2020·0 cites·15 claims
- 1247US2010092333A1Hydrogen-permeable alloy, and hydrogen-permeable film and its production methodHITACHI METALS LTD·Filed 2008·Application pending·0 cites
- 1342US8164297B2Power converter and motor driving systemTAN DAISUKE·Filed 2009·Granted Apr 24, 2012·2 cites·15 claims
- 1437US9266071B2Hydrogen separation alloy and method for producing sameYAMAMURA KAZUHIRO·Filed 2011·Granted Feb 23, 2016·0 cites·11 claims
- 1530US6310456B1Control system and methodHITACHI LTD·Filed 1999·Granted Oct 30, 2001·0 cites·16 claims
- 1630US4056767ACooling arrangement for semiconductor converter deviceHITACHI LTD·Filed 1976·Granted Nov 1, 1977·8 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →