Inventor
SHIMIZU MOTOHARU
JP16 patents
⚠️ This page may combine multiple inventors who share the name “SHIMIZU MOTOHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI METALS LTD
10 patentsUS4888512ADec 19, 1989
Surface multipolar rare earth-iron-boron rotor magnet and method of making
HITACHI METALS LTD54 citations95
US4600555AJul 15, 1986
Method of producing a cylindrical permanent magnet
HITACHI METALS LTD50 citations92
US4547758AOct 15, 1985
Cylindrical permanent magnet and method of manufacturing
HITACHI METALS LTD44 citations91
US5449417ASep 12, 1995
R-Fe-B magnet alloy, isotropic bonded magnet and method of producing same
HITACHI METALS LTD39 citations90
US5275891AJan 4, 1994
R-TM-B permanent magnet member having improved corrosion resistance and method of producing same
HITACHI METALS LTD28 citations89
US6529107B2Mar 4, 2003
Speaker comprising ring magnet
HITACHI METALS LTD16 citations77
US5412530AMay 2, 1995
Phase detecting actuator
HITACHI METALS LTD11 citations73
US5080731AJan 14, 1992
Highly oriented permanent magnet and process for producing the same
HITACHI METALS LTD10 citations72
US4412104AOct 25, 1983
Rectangular magnetic circuit for speaker
HITACHI METALS LTD3 citations54
US4820592AApr 11, 1989
Permanent oxide magnet and method of coating same
HITACHI METALS LTD0 citations46
MATSUI MFG
3 patentsUS5398557AMar 21, 1995
Rotary sampling apparatus for powdered or granular materials
MATSUI MFG41 citations92
US5301440AApr 12, 1994
On-line type moisture measuring system for powdered or granular materials
MATSUI MFG16 citations66
US7225556B2Jun 5, 2007
Drying device for powder material
MATSUI MFG2 citations60