Inventor
KOREEDA DAISUKE
JP51 patents
⚠️ This page may combine multiple inventors who share the name “KOREEDA DAISUKE”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PENTAX CORP
24 patentsUS6522476B2Feb 18, 2003
Three-group zoom lens
PENTAX CORP23 citations92
US7035193B2Apr 25, 2006
Objective lens for optical disc
PENTAX CORP11 citations84
US6982838B2Jan 3, 2006
Objective lens for optical pick-up
PENTAX CORP15 citations84
US6734890B2May 11, 2004
Scanning optical system
PENTAX CORP15 citations84
US6731419B2May 4, 2004
Scanning optical system
PENTAX CORP17 citations84
US7239598B2Jul 3, 2007
Objective lens for optical pick-up
PENTAX CORP7 citations74
US7042608B2May 9, 2006
Scanning optical system
PENTAX CORP8 citations74
US7038862B2May 2, 2006
Objective lens for optical pick-up
PENTAX CORP9 citations74
US6956686B2Oct 18, 2005
Scanning optical system
PENTAX CORP8 citations74
US6906824B1Jun 14, 2005
Tandem type printer scanning optical system having diffraction lens structure
PENTAX CORP7 citations74
US6822800B2Nov 23, 2004
Objective lens for optical pickup
PENTAX CORP11 citations74
US6790389B2Sep 14, 2004
Complex lens for a tandem scanning optical system and a manufacturing method thereof
PENTAX CORP6 citations74
US6771406B2Aug 3, 2004
Scanning optical system
PENTAX CORP8 citations74
US7023596B2Apr 4, 2006
Scanning optical system
PENTAX CORP2 citations63
US7019768B2Mar 28, 2006
Scanning optical system
PENTAX CORP6 citations63
US6977781B2Dec 20, 2005
Scanning optical system
PENTAX CORP2 citations63
US6937374B2Aug 30, 2005
Scanning optical system
PENTAX CORP4 citations63
US6900949B2May 31, 2005
Optical system of optical pick-up
PENTAX CORP3 citations63
US6777667B2Aug 17, 2004
Scanning optical system
PENTAX CORP2 citations63
US6667821B2Dec 23, 2003
Two-wavelength compatible scanning lens
PENTAX CORP2 citations63
US7224662B2May 29, 2007
Objective lens for optical pickup
PENTAX CORP1 citations52
US7075691B2Jul 11, 2006
Complex lens for a tandem scanning optical system and a manufacturing method thereof
PENTAX CORP1 citations52
US7280276B2Oct 9, 2007
Objective lens
PENTAX CORP0 citations51
US6958839B2Oct 25, 2005
Scanning optical system
PENTAX CORP0 citations42
HOYA CORP
17 patentsUS9664881B2May 30, 2017
Imaging optical system
HOYA CORP5 citations73
US7843792B2Nov 30, 2010
Optical information recording /reproducing device and objective lens for the same
HOYA CORP2 citations63
US7742370B2Jun 22, 2010
Objective lens and optical information read/write device
HOYA CORP3 citations63
US7430159B2Sep 30, 2008
Optical pick-up and objective lens for use with different types of optical discs
HOYA CORP4 citations63
US7839752B2Nov 23, 2010
Optical disc drive and objective lens for the same
HOYA CORP4 citations62
US7738345B2Jun 15, 2010
Optical disc drive and objective lens for the same
HOYA CORP5 citations62
US8699312B2Apr 15, 2014
Optical information recording/reproducing apparatus and objective optical system for the same
HOYA CORP0 citations52
US7778139B2Aug 17, 2010
Optical information recording/reproducing device and objective lens for the same
HOYA CORP1 citations52
US7414948B2Aug 19, 2008
Objective lens
HOYA CORP0 citations52
US8941925B2Jan 27, 2015
Zoom lens system
HOYA CORP0 citations42
US7990831B2Aug 2, 2011
Optical pickup device
HOYA CORP0 citations42
US7839751B2Nov 23, 2010
Objective lens and optical system for optical pick-up
HOYA CORP0 citations42
US7821906B2Oct 26, 2010
Objective lens for optical pick-up
HOYA CORP0 citations42
US7813252B2Oct 12, 2010
Optical pick-up
HOYA CORP0 citations42
US7433291B2Oct 7, 2008
Objective lens
HOYA CORP0 citations42
US7872958B2Jan 18, 2011
Optical information recording/reproducing device, optical element for the same, and design method of the same
HOYA CORP0 citations41
US7830772B2Nov 9, 2010
Objective optical system and optical information recording/reproducing device having the same
HOYA CORP0 citations41
KOREEDA DAISUKE
4 patentsUS8514686B2Aug 20, 2013
Optical information recording/reproducing apparatus and objective optical system for the same
KOREEDA DAISUKE2 citations61
US8068401B2Nov 29, 2011
Objective optical system and optical information recording/reproducing device having the same
KOREEDA DAISUKE2 citations60
US8072694B2Dec 6, 2011
Objective lens
KOREEDA DAISUKE0 citations51
US8189448B2May 29, 2012
Optical information recording/reproducing apparatus and objective optical system for the same
KOREEDA DAISUKE0 citations40
ASAHI OPTICAL CO LTD
2 patentsASAHI KOGAKU KK
1 patentINOUE SATOSHI
1 patentMARUYAMA KOICHI
1 patentShowing the top 50 of 51 patents by PatentIndex Score.