Inventor
IKENISHI MIKIO
JP35 patents
⚠️ This page may combine multiple inventors who share the name “IKENISHI MIKIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOYA CORP
17 patentsUS6818576B2Nov 16, 2004
Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied
HOYA CORP149 citations98
US7090937B2Aug 15, 2006
Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied
HOYA CORP12 citations92
US8357459B2Jan 22, 2013
Glass for use in substrate for information recording medium, substrate for information recording medium and information recording medium, and their manufacturing method
HOYA CORP8 citations84
US8354352B2Jan 15, 2013
Optical glass, preform for press forming, optical element, and processes for producing these
HOYA CORP9 citations84
US7601446B2Oct 13, 2009
Substrate for information recording medium, information recording medium and method for manufacturing same
HOYA CORP12 citations84
US7595272B2Sep 29, 2009
Optical glass, press-molding preform, process for the production thereof, optical element and process for the production thereof
HOYA CORP17 citations84
US7595273B2Sep 29, 2009
Glass substrate for information recording medium, process for producing the glass substrate, information recording medium, and process for producing the same
HOYA CORP10 citations84
US7208238B2Apr 24, 2007
Substrate for information recording medium, information recording medium and process for producing information recording medium
HOYA CORP10 citations84
US12187640B2Jan 7, 2025
Glass including a small-transmittance portion and a large-transmittance portion
HOYA CORP2 citations73
US7964298B2Jun 21, 2011
Glass for chemical strengthening, substrate for information recording media and information recording media
HOYA CORP3 citations63
US7462411B2Dec 9, 2008
Substrate for information recording medium, information recording medium and process for producing the same
HOYA CORP5 citations63
US12319607B2Jun 3, 2025
Glass substrate, method of manufacturing glass substrate, and method of manufacturing glass element using glass substrate
HOYA CORP0 citations62
US11682425B2Jun 20, 2023
Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer
HOYA CORP0 citations62
US11031038B2Jun 8, 2021
Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer
HOYA CORP1 citations62
US9236077B2Jan 12, 2016
Glass for use as substrate for information recording medium, substrate for information recording medium and information recording medium, and their production methods
HOYA CORP2 citations62
US7972662B2Jul 5, 2011
Substrate for information recording medium, information recording medium and process for producing information recording medium
HOYA CORP2 citations62
US7670978B2Mar 2, 2010
Optical glass, precision press molding preform and optical element
HOYA CORP3 citations62
IKENISHI MIKIO
15 patentsUS8697592B2Apr 15, 2014
Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied
IKENISHI MIKIO37 citations97
US8261579B2Sep 11, 2012
Optical glass, precision press-molding preform and optical element
IKENISHI MIKIO7 citations84
US8158541B2Apr 17, 2012
Optical glass, precision press-molding preform and optical element
IKENISHI MIKIO11 citations84
US8222170B2Jul 17, 2012
Glass substrate for information recording medium and magnetic information recording medium to which the glass substrate is applied
IKENISHI MIKIO10 citations83
US8198202B2Jun 12, 2012
Optical glass, glass material for press molding, optical element blank, optical element and manufacturing method thereof
IKENISHI MIKIO5 citations73
US8431499B2Apr 30, 2013
Optical glass, glass material for press molding, optical element blank, optical element and manufacturing method thereof
IKENISHI MIKIO2 citations62
US8883330B2Nov 11, 2014
Glass for chemical strengthening, substrate for information recording media and information recording media
IKENISHI MIKIO0 citations52
US8713970B2May 6, 2014
Method for producing fluorophosphate glass, glass material for press molding and optical element
IKENISHI MIKIO1 citations52
US8642490B2Feb 4, 2014
Fluorophosphate glass, precision press molding preform, optical element blank, optical element and method of manufacturing the same
IKENISHI MIKIO1 citations52
US8637415B2Jan 28, 2014
Fluorophosphate glass, precision press molding preform, optical element blank, optical element and methods of manufacturing the same
IKENISHI MIKIO0 citations52
US8633121B2Jan 21, 2014
Fluorophosphate glass, glass material for press molding, optical element blank, optical element, processes for production of same, and process for production of glass moldings
IKENISHI MIKIO0 citations52
US8476176B2Jul 2, 2013
Phosphate glass, fluorophosphate glass, preform for precision press-molding, optical element and process for the production of thereof
IKENISHI MIKIO0 citations52
US8183169B2May 22, 2012
Phosphate glass, fluorophosphate glass, preform for precision press-molding, optical element and process for the production of thereof
IKENISHI MIKIO1 citations52
US9656905B2May 23, 2017
Fluorophosphate glass and method for producing the same and near-infrared absorbing filter
IKENISHI MIKIO0 citations50
US9868661B2Jan 16, 2018
Glass lens blank for polishing, manufacturing method therefore, and optical lens manufacturing method
IKENISHI MIKIO0 citations48
TACHIWANA KAZUO
2 patentsUS8076014B2Dec 13, 2011
Glass for use in substrate for information recording medium, substrate for information recording medium and information recording medium, and their manufacturing method
TACHIWANA KAZUO25 citations90
US8785011B2Jul 22, 2014
Glass for use as substrate for information recording medium, substrate for information recording medium and information recording medium, and their production methods
TACHIWANA KAZUO0 citations50