Inventor
KUWABARA TETSUO
JP11 patents
⚠️ This page may combine multiple inventors who share the name “KUWABARA TETSUO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CANON KK
9 patentsUS5662999ASep 2, 1997
Mold and method of manufacturing the same
CANON KK57 citations96
US5589882ADec 31, 1996
Integral infrared absorbing optical low-pass filter
CANON KK20 citations92
US5575961ANov 19, 1996
Roll-shaped mold for information recording medium
CANON KK41 citations92
US5192352AMar 9, 1993
Molding method using glass blank
CANON KK26 citations92
US6989060B2Jan 24, 2006
Calcium fluoride crystal and method and apparatus for using the same
CANON KK14 citations83
US5032159AJul 16, 1991
Method of manufacturing optical device
CANON KK20 citations82
US5160362ANov 3, 1992
Process for manufacturing optical element
CANON KK13 citations72
US5168404ADec 1, 1992
Optical element and glass blank for producing the optical element
CANON KK11 citations71
US6522464B2Feb 18, 2003
Diffraction optical element, optical system and optical device
CANON KK5 citations62