Inventor · disambiguated record
Ken Ohashi
Also filed as: OHASHI KEN
32 granted patents·16 pending applications·583 citations·filing 1981–2022
97Inventor score
Files withSHINETSU CHEMICAL CO40ITO MASARU2MITSUI CHEMICALS INC1OHASHI KEN1SHIN ETSU CHEMICAL CI LTD1
Top patents by PatentIndex Score
48 records- 0193US5034146ARare earth-based permanent magnetSHINETSU CHEMICAL CO·Filed 1990·Granted Jul 23, 1991·72 cites·4 claims
- 0292US5864275AOpposed magnet-type magnetic circuit assembly with permanent magnetsSHINETSU CHEMICAL CO·Filed 1996·Granted Jan 26, 1999·90 cites·2 claims
- 0386US6606019B1Rare earth-based sintered magnet and permanent magnet synchronous motor therewithSHINETSU CHEMICAL CO·Filed 2000·Granted Aug 12, 2003·34 cites·6 claims
- 0484US8388766B2Anisotropic rare earth sintered magnet and making methodOHASHI KEN·Filed 2011·Granted Mar 5, 2013·4 cites·8 claims
- 0579US5963117AOpposed magnet-type magnetic circuit assembly with permanent magnetsSHINETSU CHEMICAL CO·Filed 1998·Granted Oct 5, 1999·39 cites·14 claims
- 0679US4678634AMethod for the preparation of an anisotropic sintered permanent magnetSHINETSU CHEMICAL CO·Filed 1986·Granted Jul 7, 1987·26 cites·10 claims
- 0776US7713360B2Rare earth permanent magnetSHINETSU CHEMICAL CO·Filed 2005·Granted May 11, 2010·7 cites·4 claims
- 0876US5512872APermanent magnet arrangement for use in magnetron plasma processingSHINETSU CHEMICAL CO·Filed 1994·Granted Apr 30, 1996·27 cites·14 claims
- 0975US6261385B1Magnetically anisotropic rare earth-based nanocomposite permanent magnetSHINETSU CHEMICAL CO·Filed 1998·Granted Jul 17, 2001·27 cites·5 claims
- 1074US5576679ACylindrical permanent magnet unit suitable for gyrotronSHINETSU CHEMICAL CO·Filed 1995·Granted Nov 19, 1996·33 cites·24 claims
- 1171US4990306AMethod of producing polar anisotropic rare earth magnetSHINETSU CHEMICAL CO·Filed 1989·Granted Feb 5, 1991·19 cites·6 claims
- 1270US6666957B2Magnetron sputtering system and photomask blank production method based on the sameSHINETSU CHEMICAL CO·Filed 2001·Granted Dec 23, 2003·8 cites·21 claims
- 1369US7851076B2Method of fabricating silicon substrate for magnetic recording media, and magnetic recording mediumSHINETSU CHEMICAL CO·Filed 2008·Granted Dec 14, 2010·1 cites·17 claims
- 1468US8013701B2Magnetic circuit and method of applying magnetic fieldSHINETSU CHEMICAL CO·Filed 2009·Granted Sep 6, 2011·3 cites·12 claims
- 1567US7821366B2Magnetic circuit and method of applying magnetic fieldSHINETSU CHEMICAL CO·Filed 2007·Granted Oct 26, 2010·3 cites·4 claims
- 1667US2024405211A1Silicon monoxide powder and negative electrode active material for lithium-ion secondary batterySHINETSU CHEMICAL CO·Filed 2022·Application pending·0 cites
- 1765US5291171AMagnet apparatus suitable for magnetic resonance imagingSHINETSU CHEMICAL CO·Filed 1992·Granted Mar 1, 1994·19 cites·4 claims
- 1865US2024336488A1Method for producing silicon monoxideSHINETSU CHEMICAL CO·Filed 2022·Application pending·0 cites
- 1964US4497672AMethod for the preparation of a rare earth-cobalt based permanent magnetSHINETSU CHEMICAL CO·Filed 1983·Granted Feb 5, 1985·13 cites·5 claims
- 2062US6319334B1Rare earth/iron/boron-based permanent magnet and method for the preparation thereofSHINETSU CHEMICAL CO·Filed 1999·Granted Nov 20, 2001·17 cites·7 claims
- 2160US4971637ARare earth permanent magnetSHINETSU CHEMICAL CO·Filed 1989·Granted Nov 20, 1990·14 cites·4 claims
- 2259US5930582ARare earth-iron-boron permanent magnet and method for the preparation thereofSHINETSU CHEMICAL CO·Filed 1998·Granted Jul 27, 1999·16 cites·9 claims
- 2358US6589367B2Anisotropic rare earth-based permanent magnet materialSHINETSU CHEMICAL CO·Filed 2001·Granted Jul 8, 2003·6 cites·8 claims
- 2457US6078237ARare earth-based permanent magnet material and method for the preparation thereofSHINETSU CHEMICAL CO·Filed 1998·Granted Jun 20, 2000·14 cites·6 claims
- 2555US5082745ARare earth based permanent magnet having corrosion-resistant surface film and method for the preparation thereofSHINETSU CHEMICAL CO·Filed 1990·Granted Jan 21, 1992·13 cites·5 claims
- 2655US2016336592A1Negative electrode for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary batterySHINETSU CHEMICAL CO·Filed 2014·Application pending·0 cites
- 2754US2009220821A1Silicon substrate for magnetic recording and method for manufacturing the sameSHINETSU CHEMICAL CO·Filed 2009·Application pending·0 cites
- 2854US2009226667A1Silicon substrate for magnetic recording and method for manufacturing the sameSHINETSU CHEMICAL CO·Filed 2009·Application pending·0 cites
- 2953US6863742B2Bulk anisotropic rare earth permanent magnet and preparation methodSHINETSU CHEMICAL CO·Filed 2002·Granted Mar 8, 2005·4 cites·3 claims
- 3053US5976271AMethod for the preparation of rare earth based anisotropic permanent magnetSHINETSU CHEMICAL CO·Filed 1998·Granted Nov 2, 1999·12 cites·6 claims
- 3152US4375996ARare earth metal-containing alloys for permanent magnetsSHINETSU CHEMICAL CO·Filed 1981·Granted Mar 8, 1983·10 cites·1 claims
- 3252US2008233330A1Silicon substrate for magnetic recording media and method of fabricating the sameSHINETSU CHEMICAL CO·Filed 2008·Application pending·0 cites
- 3350US2007231607A1Substrate for magnetic recording medium, fabrication method thereof, and magnetic recording mediumITO MASARU·Filed 2007·Application pending·0 cites
- 3449US5825187AMagnetic circuit system with opposite permanent magnetsSHINETSU CHEMICAL CO·Filed 1997·Granted Oct 20, 1998·15 cites·5 claims
- 3549US2007111036A1Substrate for magnetic recording medium and fabrication method thereofITO MASARU·Filed 2006·Application pending·0 cites
- 3647US4992234AMethod for the preparation of rare earth-base permanent magnetSHINETSU CHEMICAL CO·Filed 1990·Granted Feb 12, 1991·10 cites·8 claims
- 3745US5774034AMagnet assembly in MRI instrumentSHINETSU CHEMICAL CO·Filed 1996·Granted Jun 30, 1998·12 cites·3 claims
- 3844US2007231603A1Permanent magnetic circuit, axisymmetric magnetic field generating method, and manufacturing method for perpendicular magnetic recording mediumSHINETSU CHEMICAL CO·Filed 2007·Application pending·0 cites
- 3942US2005029687A1Method for manufacturing magnetic recording medium substratesFiled 2004·Application pending·0 cites
- 4042US2006012251A1Linear motor for use in machine toolSHINETSU CHEMICAL CO·Filed 2005·Application pending·0 cites
- 4142US2006012252A1Linear motor for use in machine toolSHINETSU CHEMICAL CO·Filed 2005·Application pending·0 cites
- 4242US2005012245A1Method for manufacturing magnetic recording medium substratesFiled 2004·Application pending·0 cites
- 4342US2006033386A1Linear motor for use in machine toolSHINETSU CHEMICAL CO·Filed 2005·Application pending·0 cites
- 4441US2005011860A1Substrate for magnetic recording medium, method for manufacturing the same and magnetic recording mediumFiled 2004·Application pending·0 cites
- 4540US6057656AMagnet block assembly for insertion deviceSHIN ETSU CHEMICAL CI LTD·Filed 1998·Granted May 2, 2000·9 cites·6 claims
- 4639US2018241076A1Negative electrode for lithium ion secondary battery, lithium ion secondary battery comprising same, and method for producing negative electrode for lithium ion secondary batteryMITSUI CHEMICALS INC·Filed 2016·Application pending·0 cites
- 4737US5057165ARare earth permanent magnet and a method for manufacture thereofSHINETSU CHEMICAL CO·Filed 1990·Granted Oct 15, 1991·5 cites·4 claims
- 4832US4567576AMethod for producing a magnetic bias fieldSHINETSU CHEMICAL CO·Filed 1984·Granted Jan 28, 1986·1 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →