Inventor
OKAJIMA MASAKI
JP17 patents
⚠️ This page may combine multiple inventors who share the name “OKAJIMA MASAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
12 patentsUS5739946AApr 14, 1998
Display device
TOSHIBA KK64 citations96
US5406574AApr 11, 1995
Semiconductor laser device
TOSHIBA KK28 citations92
US5282218AJan 25, 1994
Semiconductor laser device
TOSHIBA KK33 citations92
US5065404ANov 12, 1991
Transverse-mode oscillation semiconductor laser device
TOSHIBA KK25 citations92
US4706101ANov 10, 1987
Light emitting diode formed of a compound semiconductor material
TOSHIBA KK36 citations91
US4635268AJan 6, 1987
Semiconductor laser device having a double heterojunction structure
TOSHIBA KK29 citations88
US5058120AOct 15, 1991
Visible light emitting semiconductor laser with inverse mesa-shaped groove section
TOSHIBA KK21 citations82
US4691321ASep 1, 1987
Semiconductor laser device having current confining and built-in waveguide structure
TOSHIBA KK20 citations81
US5377291ADec 27, 1994
Wavelength converting optical device
TOSHIBA KK14 citations74
US5305341AApr 19, 1994
Semiconductor laser whose active layer has an ordered structure
TOSHIBA KK12 citations74
US5202895AApr 13, 1993
Semiconductor device having an active layer made of ingaalp material
TOSHIBA KK12 citations74
US4799228AJan 17, 1989
Transverse-mode stabilized semiconductor laser diode with slab-coupled waveguide
TOSHIBA KK17 citations69