Inventor
OKAYAMA KATSUMI
JP33 patents
⚠️ This page may combine multiple inventors who share the name “OKAYAMA KATSUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
14 patentsUS7119419B2Oct 10, 2006
Detailed description of the presently preferred embodiments
SONY CORP25 citations93
US6992155B2Jan 31, 2006
Method for producing magnetic particle, magnetic particle and magnetic material
SONY CORP16 citations93
US7482977B2Jan 27, 2009
Antenna apparatus
SONY CORP36 citations92
US6785519B2Aug 31, 2004
Portable telephone
SONY CORP37 citations92
US6473024B2Oct 29, 2002
Electromagnetic wave absorber
SONY CORP27 citations91
US7336556B2Feb 26, 2008
Magnetic non-volatile memory device
SONY CORP14 citations84
US6507318B2Jan 14, 2003
Antenna apparatus and portable communication apparatus
SONY CORP19 citations84
US7539510B2May 26, 2009
Communication apparatus and portable telephone
SONY CORP17 citations83
US6503963B2Jan 7, 2003
Radiowave absorbent and manufacturing method thereof
SONY CORP13 citations83
US6677881B1Jan 13, 2004
Radio wave absorber
SONY CORP11 citations74
US6670546B2Dec 30, 2003
Radio wave absorber
SONY CORP9 citations74
US7459769B2Dec 2, 2008
Magnetic shield member, magnetic shield structure, and magnetic memory device
SONY CORP7 citations73
US7959821B2Jun 14, 2011
Electromagnetism suppressing material, electromagnetism suppressing device, and electronic appliance
SONY CORP2 citations62
US7745004B2Jun 29, 2010
Polymer-coated magnetic particle and magnetic material for absorbing electromagnetic waves
SONY CORP0 citations52
SUMITOMO SPEC METALS
12 patentsUS6537385B2Mar 25, 2003
Rare earth magnet and method for manufacturing the same
SUMITOMO SPEC METALS22 citations92
US6491765B2Dec 10, 2002
Rare earth magnet and method for manufacturing the same
SUMITOMO SPEC METALS31 citations92
US6474576B1Nov 5, 2002
Milling apparatus and milling method
SUMITOMO SPEC METALS19 citations91
US6464931B1Oct 15, 2002
Case for use in sintering process to produce rare-earth magnet, and method for producing rare-earth magnet
SUMITOMO SPEC METALS16 citations91
US6403024B1Jun 11, 2002
Hydrogen pulverizer for rare-earth alloy magnetic material powder using the pulverizer, and method for producing magnet using the pulverizer
SUMITOMO SPEC METALS39 citations91
US5281250AJan 25, 1994
Powder material for rare earth-iron-boron based permanent magnets
SUMITOMO SPEC METALS27 citations90
US6696015B2Feb 24, 2004
Method for producing rare-earth magnet
SUMITOMO SPEC METALS17 citations81
US6736343B2May 18, 2004
Milling apparatus and milling method
SUMITOMO SPEC METALS10 citations72
US6247660B1Jun 19, 2001
Process for hydrogen-pulverizing a rare earth metal-based magnetic material, and hydrogen-pulverizing case
SUMITOMO SPEC METALS12 citations71
US6743394B2Jun 1, 2004
Case for use in sintering process to produce rare-earth magnet, and method for producing rare-earth magnet
SUMITOMO SPEC METALS3 citations61
US6464386B1Oct 15, 2002
Method and apparatus for mixing powder with liquid
SUMITOMO SPEC METALS6 citations61
US6548014B2Apr 15, 2003
Suspension application apparatus and method for manufacturing rare earth magnet
SUMITOMO SPEC METALS3 citations56
NITTO DENKO CORP
3 patentsUS6695985B2Feb 24, 2004
Electromagnetic wave suppressor sheet
NITTO DENKO CORP56 citations96
US6800804B2Oct 5, 2004
Epoxy resin composition used for encapsulating semiconductor and semiconductor device using the composition
NITTO DENKO CORP36 citations92
US7034405B2Apr 25, 2006
Resin component for encapsulating semiconductor and semiconductor device using it
NITTO DENKO CORP3 citations62