Inventor
KASUGA YOSHIKO
JP11 patents
⚠️ This page may combine multiple inventors who share the name “KASUGA YOSHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HOYA CORP
10 patentsUS7157391B2Jan 2, 2007
Optical glass, preform for press molding and optical element
HOYA CORP20 citations92
US7994082B2Aug 9, 2011
Preforms for precision press molding, optical elements, and methods of manufacturing the same
HOYA CORP7 citations84
US7827823B2Nov 9, 2010
Optical glass, precision press-molding preform, process for producing the preform, optical element and process for producing the element
HOYA CORP8 citations83
US7351675B2Apr 1, 2008
Optical glass, precision press-molding preform, process for production thereof, optical element and process for the production thereof
HOYA CORP12 citations83
US7232779B2Jun 19, 2007
Optical glass, precision press molding preform and method of manufacturing the same, optical element and method of manufacturing the same
HOYA CORP15 citations83
US7087543B2Aug 8, 2006
Optical glass, press-molding preform and optical element
HOYA CORP12 citations83
US7015164B2Mar 21, 2006
Optical glass, glass material for press molding, optical element, and method of manufacturing same
HOYA CORP8 citations72
US7745361B2Jun 29, 2010
Optical glass, preform for precision press molding and method of manufacturing thereof, optical element and method of manufacturing thereof
HOYA CORP3 citations62
US7670978B2Mar 2, 2010
Optical glass, precision press molding preform and optical element
HOYA CORP3 citations62
US7700507B2Apr 20, 2010
Optical glass, preform for precision press-molding, process for the production of the preform, optical element, and process for the production of the element
HOYA CORP0 citations41