Inventor
YOSHIDA YOSHIO
JP77 patents
⚠️ This page may combine multiple inventors who share the name “YOSHIDA YOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
37 patentsUS5085496AFeb 4, 1992
Optical element and optical pickup device comprising it
SHARP KK242 citations99
US5465315ANov 7, 1995
Display apparatus having a plurality of display devices
SHARP KK76 citations96
US5446719AAug 29, 1995
Optical information reproducing apparatus
SHARP KK73 citations96
US5410622AApr 25, 1995
Optical integrated circuit having light detector
SHARP KK59 citations96
US6030540AFeb 29, 2000
Method for producing tapered waveguide
SHARP KK28 citations93
US5515354AMay 7, 1996
Optical pickup
SHARP KK40 citations93
US5408264AApr 18, 1995
Three-dimensional image display apparatus for optically synthesizing images formed on different surfaces on a display screen
SHARP KK27 citations93
US5283690AFeb 1, 1994
Optical diffraction grating element
SHARP KK31 citations93
US5128914AJul 7, 1992
Optical pickup apparatus utilizing a diffraction device
SHARP KK49 citations93
US6078707AJun 20, 2000
Waveguide-photodetector, method for producing the same, waveguide usable in the waveguide-photodetector, and method for producing the same
SHARP KK30 citations92
US5652816AJul 29, 1997
Optical coupler and method for producing the same
SHARP KK35 citations92
US5331621AJul 19, 1994
Optical pickup apparatus and a hologram element used for same
SHARP KK24 citations92
US5279924AJan 18, 1994
Manufacturing method of optical diffraction grating element with serrated gratings having uniformly etched grooves
SHARP KK47 citations92
US5253237AOct 12, 1993
Optical head device
SHARP KK23 citations92
US5251280AOct 5, 1993
Liquid crystal display apparatus
SHARP KK28 citations92
US5111449AMay 5, 1992
Optical pick-up device using diffraction grating element having two sub-regions
SHARP KK34 citations92
US4904856AFeb 27, 1990
Optical pickup device with diffraction sensing
SHARP KK45 citations92
US5509094AApr 16, 1996
Mode splitter and a magneto-optical disk pick-up device having the mode splitter
SHARP KK17 citations82
US5049732ASep 17, 1991
Optical pickup device with diffraction device
SHARP KK20 citations82
US6166372ADec 26, 2000
Polarization detection device and method for producing the same
SHARP KK14 citations74
US5946433AAug 31, 1999
Method for producing a photocoupler and a photocoupler produced by the same
SHARP KK8 citations74
US5726962AMar 10, 1998
Compact optical pickup device with beam splitter
SHARP KK14 citations74
US5576149ANov 19, 1996
Method for producing a tapered waveguide
SHARP KK11 citations74
US5440427AAug 8, 1995
Optical pick-up device having an optical diffraction grating element
SHARP KK5 citations74
US5428595AJun 27, 1995
Optical information recording and reproducing device
SHARP KK13 citations74
US5428472AJun 27, 1995
Optical scan device having an optical diffraction grating element
SHARP KK9 citations74
US5283772AFeb 1, 1994
Optical head
SHARP KK11 citations74
US5257131AOct 26, 1993
Polarization diffraction element and polarization detector employing the same
SHARP KK12 citations74
US5202869AApr 13, 1993
Optical head device including diffraction grating
SHARP KK7 citations74
US5173890ADec 22, 1992
Optical pickup device including diffraction grating
SHARP KK7 citations74
USRE35332ESep 24, 1996
Optical pickup device with diffraction device
SHARP KK8 citations73
US5428584AJun 27, 1995
Pickup device for a magneto-optical information recording system
SHARP KK10 citations73
US5410529AApr 25, 1995
Optical pickup apparatus
SHARP KK14 citations73
US5408450AApr 18, 1995
Optical pickup apparatus
SHARP KK19 citations73
US4985880AJan 15, 1991
Optical information recording and reproducing apparatus
SHARP KK8 citations73
US4812638AMar 14, 1989
Focusing error detector and optical data detecting device incorporating the focusing error detector
SHARP KK16 citations72
US6254284B1Jul 3, 2001
Optical pickup having optical waveguide device fixed on stem with wedge-shaped device fixing member interposed and method of manufacturing the same
SHARP KK8 citations71
DENSO CORP
4 patentsUS7281574B2Oct 16, 2007
Automotive air conditioning system
DENSO CORP23 citations92
US6470704B2Oct 29, 2002
Receiver-integrated condenser for a vehicle
DENSO CORP40 citations92
US6398638B1Jun 4, 2002
Vehicle air conditioner with manually operated operation member
DENSO CORP14 citations83
US6382518B1May 7, 2002
Vehicle air conditioner with side face opening
DENSO CORP13 citations71
KAWASAKI HEAVY IND LTD
2 patentsMITSUI TOATSU CHEMICALS
2 patentsMITSUBISHI ELECTRIC CORP
1 patentSANYO KOKUSAKU PULP CO
1 patentHARUMOTO YOSHINOBU
1 patentTANIZAKI TAKESHI
1 patentSHINETSU POLYMER CO
1 patentShowing the top 50 of 77 patents by PatentIndex Score.