Inventor
TACHIWANA KAZUO
JP15 patents
⚠️ This page may combine multiple inventors who share the name “TACHIWANA KAZUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOYA CORP
10 patentsUS5972460AOct 26, 1999
Information recording medium
HOYA CORP98 citations97
US5668066ASep 16, 1997
Near infrared absorption filter glass
HOYA CORP66 citations94
US4996173AFeb 26, 1991
Optical glass
HOYA CORP31 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
US7501369B2Mar 10, 2009
Optical glass and process for the production of optical products
HOYA CORP9 citations83
US6156684ADec 5, 2000
Light polarization control element using stress-optical coefficient glass and method of producing the stress-optical coefficient glass
HOYA CORP15 citations73
US7015164B2Mar 21, 2006
Optical glass, glass material for press molding, optical element, and method of manufacturing same
HOYA CORP8 citations72
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
US9663402B2May 30, 2017
Method for manufacturing optical element
HOYA CORP0 citations48
US9718723B2Aug 1, 2017
Glass article
HOYA CORP0 citations46
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