Inventor · disambiguated record
Motoharu Shimizu
Also filed as: SHIMIZU MOTOHARU
16 granted patents·2 pending applications·360 citations·filing 1979–2014
94Inventor score
Files withHITACHI METALS LTD10MATSUI MFG3MATSUI MFG CO2Kabushikikisha Matsui Seisakusho1METSUGI MASAAKI1
Top patents by PatentIndex Score
18 records- 0191US4547758ACylindrical permanent magnet and method of manufacturingHITACHI METALS LTD·Filed 1982·Granted Oct 15, 1985·44 cites·5 claims
- 0288US4600555AMethod of producing a cylindrical permanent magnetHITACHI METALS LTD·Filed 1984·Granted Jul 15, 1986·50 cites·8 claims
- 0385US4888512ASurface multipolar rare earth-iron-boron rotor magnet and method of makingHITACHI METALS LTD·Filed 1988·Granted Dec 19, 1989·54 cites·16 claims
- 0481US5449417AR-Fe-B magnet alloy, isotropic bonded magnet and method of producing sameHITACHI METALS LTD·Filed 1994·Granted Sep 12, 1995·39 cites·2 claims
- 0581US5033208AHopper dryerMATSUI MFG CO·Filed 1989·Granted Jul 23, 1991·38 cites·2 claims
- 0676US5275891AR-TM-B permanent magnet member having improved corrosion resistance and method of producing sameHITACHI METALS LTD·Filed 1991·Granted Jan 4, 1994·28 cites·12 claims
- 0775US8421292B2Permanent magnet motor having composite magnets and manufacturing method thereofNATSUMEDA MITSUTOSHI·Filed 2008·Granted Apr 16, 2013·8 cites·11 claims
- 0873US5398557ARotary sampling apparatus for powdered or granular materialsMATSUI MFG·Filed 1992·Granted Mar 21, 1995·41 cites·5 claims
- 0965US6529107B2Speaker comprising ring magnetHITACHI METALS LTD·Filed 2000·Granted Mar 4, 2003·16 cites·4 claims
- 1052US5080731AHighly oriented permanent magnet and process for producing the sameHITACHI METALS LTD·Filed 1989·Granted Jan 14, 1992·10 cites·2 claims
- 1149US7225556B2Drying device for powder materialMATSUI MFG·Filed 2003·Granted Jun 5, 2007·2 cites·4 claims
- 1247US5412530APhase detecting actuatorHITACHI METALS LTD·Filed 1992·Granted May 2, 1995·11 cites·5 claims
- 1344US5301440AOn-line type moisture measuring system for powdered or granular materialsMATSUI MFG·Filed 1992·Granted Apr 12, 1994·16 cites·4 claims
- 1441US2016250685A1Mold-Cooling System and Mold-Cooling MethodKabushikikisha Matsui Seisakusho·Filed 2014·Application pending·0 cites
- 1541US2015370262A1Liquid Supply ApparatusMATSUI MFG CO·Filed 2013·Application pending·0 cites
- 1626US4412104ARectangular magnetic circuit for speakerHITACHI METALS LTD·Filed 1979·Granted Oct 25, 1983·3 cites·8 claims
- 1724US4820592APermanent oxide magnet and method of coating sameHITACHI METALS LTD·Filed 1987·Granted Apr 11, 1989·0 cites·10 claims
- 1816US9022766B2Mold temperature control deviceMETSUGI MASAAKI·Filed 2011·Granted May 5, 2015·0 cites·12 claims
Join the waitlist — get patent alerts
Get an alert when Motoharu Shimizu files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →