Inventor
TOMIYASU HIROSHI
JP31 patents
⚠️ This page may combine multiple inventors who share the name “TOMIYASU HIROSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOYA CORP
9 patentsUS7420886B2Sep 2, 2008
Magnetic recording medium, and thermal stability measuring method and apparatus of magnetic recording medium
HOYA CORP70 citations97
US7220500B1May 22, 2007
Magnetic recording medium, and thermal stability measuring method and apparatus of magnetic recording medium
HOYA CORP76 citations97
US6759138B2Jul 6, 2004
Antiferromagnetically coupled magnetic recording medium with dual-layered upper magnetic layer
HOYA CORP94 citations97
US6670055B2Dec 30, 2003
Magnetic recording medium and manufacturing method therefor
HOYA CORP87 citations97
US6852010B2Feb 8, 2005
Substrate for an information recording medium, information recording medium using the substrate, and method of producing the substrate
HOYA CORP16 citations92
US6537648B1Mar 25, 2003
Substrate for an information recording medium, information recording medium using the substrate and method of producing the substrate
HOYA CORP42 citations92
US6706427B2Mar 16, 2004
Management technique of friction coefficient based on surface roughness, substrate for information recording medium, information recording medium and manufacture method thereof
HOYA CORP17 citations89
US6790509B2Sep 14, 2004
Substrate for information recording medium, information recording medium, and method for controlling surface of substrate for information recording medium
HOYA CORP11 citations73
US7220446B2May 22, 2007
Management technique of friction coefficient based on surface roughness, substrate for information recording medium, information recording medium and manufacture method thereof
HOYA CORP0 citations49
KONISHIROKU PHOTO IND
4 patentsUS5677101AOct 14, 1997
Light-sensitive lithographic printing plate having a light sensitive layer comprising a clathrate compound
KONISHIROKU PHOTO IND24 citations91
US5225309AJul 6, 1993
Light-sensitive litho printing plate with cured diazo primer layer, diazo resin/salt light-sensitive layer containing a coupler and silicone rubber overlayer
KONISHIROKU PHOTO IND8 citations73
US5260167ANov 9, 1993
Light-sensitive litho printing plate requiring no dampening water
KONISHIROKU PHOTO IND11 citations72
US5238771AAug 24, 1993
Lithographic printing plate utilizing aluminum substrate with photosensitive layer containing o-naphthoquinonediazide sulfonic acid ester, alkali soluble resin and select additive
KONISHIROKU PHOTO IND14 citations72
HOYA MAGNETICS SINGAPORE PTE
3 patentsUS7208236B2Apr 24, 2007
Magnetic recording medium with multi-portion carbon-based protection layer, and apparatus thereof
HOYA MAGNETICS SINGAPORE PTE75 citations98
US6946191B2Sep 20, 2005
Magnetic recording medium
HOYA MAGNETICS SINGAPORE PTE73 citations98
US6916558B2Jul 12, 2005
Magnetic disk using a glass substrate
HOYA MAGNETICS SINGAPORE PTE76 citations97
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD
3 patentsUS5184263AFeb 2, 1993
Loading method and drive unit for a floating magnetic head for loading the magnetic head while preventing contact between the magnetic head and a magnetic disk
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations92
US5513056AApr 30, 1996
Magnetic head slider
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD45 citations90
US5966273AOct 12, 1999
Magnetoresistive thin film head
MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 citations74
MITSUBISHI CHEM IND
3 patentsUS4731316AMar 15, 1988
Photosensitive composition
MITSUBISHI CHEM IND13 citations74
US5182183AJan 26, 1993
Positive photosensitive planographic printing plates containing specific high-molecular weight compound and photosensitive ester of O-napthoquinonediazidosulfonic acid with polyhydroxybenzophenone
MITSUBISHI CHEM IND7 citations73
US5219700AJun 15, 1993
Photosensitive composition containing 1,2-naphthoquinone-2-diazido-4-sulfonic acid ester, alkali-soluble resin, halomethyloxadiazole compound and a dye
MITSUBISHI CHEM IND12 citations72