Inventor
YOKOMORI KIYOSHI
JP12 patents
Patents
12 patentsUS5235589AAug 10, 1993
Apparatus for recording and reproducing optical information and prism coupler
RICOH KK67 citations95
US5208800AMay 4, 1993
Mode splitter and magneto-optical signal detection device
RICOH KK104 citations95
US4932743AJun 12, 1990
Optical waveguide device
RICOH KK123 citations95
US4807238AFeb 21, 1989
A semiconductor laser device
RICOH KK57 citations95
US5719981AFeb 17, 1998
Opto-electric device
RICOH KK40 citations92
US5418765AMay 23, 1995
Apparatus for recording and reproducing optical information having an optical waveguide
RICOH KK26 citations92
US5119452AJun 2, 1992
High efficiency prism coupling device and method for producing the same
RICOH KK28 citations92
US4877301AOct 31, 1989
Covered optical waveguide having an inlet opening
RICOH KK37 citations92
US5337302AAug 9, 1994
Optical data recording/reproduction apparatus for use with semiconductor lasers as a light source
RICOH KK9 citations73
US5095389AMar 10, 1992
Beam shaping optical system
RICOH KK18 citations73
US5060214AOct 22, 1991
Optical pickup device keeping coincident the optical axes of the objective lens and of the recording/reproducing beam
RICOH KK7 citations72
US5091982AFeb 25, 1992
Waveguide type optical detection apparatus
RICOH KK4 citations62