Inventor
KATSUMA TOSHIAKI
JP40 patents
⚠️ This page may combine multiple inventors who share the name “KATSUMA TOSHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJINON CORP
18 patentsUS7443779B2Oct 28, 2008
Objective optical system for optical recording media and optical pickup device using it
FUJINON CORP10 citations84
US7072272B2Jul 4, 2006
Diffraction type optical pickup lens and optical pickup apparatus using the same
FUJINON CORP7 citations73
US7613098B2Nov 3, 2009
Objective optical system for optical recording media and optical pickup device using it
FUJINON CORP3 citations63
US7580601B2Aug 25, 2009
Anamorphic aspherical beam focusing lens
FUJINON CORP5 citations63
US7502299B2Mar 10, 2009
Objective optical system and optical pickup device using it
FUJINON CORP6 citations63
US7457223B2Nov 25, 2008
Objective lens for optical recording media and optical pickup device using it
FUJINON CORP5 citations63
US7298687B2Nov 20, 2007
Optical recording media objective lens and optical pickup device using it
FUJINON CORP2 citations63
US7286463B2Oct 23, 2007
Objective lens and optical pickup device using it
FUJINON CORP2 citations63
US7220064B2May 22, 2007
Coupling optical system for optical communications
FUJINON CORP3 citations62
US8009544B2Aug 30, 2011
Objective lens, optical pickup device having the same, and recording and/or reproducing apparatus for optical recording medium, equipped with the optical pickup device
FUJINON CORP1 citations52
US7995290B2Aug 9, 2011
Objective lens, optical pickup device, and optical recording/reproducing apparatus
FUJINON CORP1 citations52
US7589914B2Sep 15, 2009
Molded lens
FUJINON CORP1 citations52
US6970412B2Nov 29, 2005
Diffraction type lens which converges two wavelengths of light
FUJINON CORP0 citations52
US7417806B2Aug 26, 2008
Lens with reference mounting surface
FUJINON CORP0 citations51
US8345356B2Jan 1, 2013
Objective lens, optical pickup device, and optical recording/reproducing apparatus
FUJINON CORP0 citations42
US7680014B2Mar 16, 2010
Objective optical system and optical pickup device using it
FUJINON CORP0 citations42
US7266070B2Sep 4, 2007
Objective lens for different optical recording media and an optical pickup device utilizing it
FUJINON CORP0 citations42
US7755852B2Jul 13, 2010
Optical element molding method and optical element
FUJINON CORP0 citations41
FUJI PHOTO OPTICAL CO LTD
15 patentsUS6166854ADec 26, 2000
Diffraction type filter having an aberration correction function and wave length selectivity
FUJI PHOTO OPTICAL CO LTD66 citations96
US6545821B2Apr 8, 2003
Diffraction type lens and optical pickup apparatus using the same
FUJI PHOTO OPTICAL CO LTD24 citations92
US6084710AJul 4, 2000
Diffraction type filter having a wave length selectivity
FUJI PHOTO OPTICAL CO LTD25 citations92
US6646817B2Nov 11, 2003
Objective lens for optical recording media and optical pickup apparatus using the same
FUJI PHOTO OPTICAL CO LTD18 citations84
US6498689B2Dec 24, 2002
Objective lens for optical recording media and optical pickup apparatus using the same
FUJI PHOTO OPTICAL CO LTD16 citations84
US6781771B2Aug 24, 2004
Objective lens for optical recording medium and optical pickup device using it
FUJI PHOTO OPTICAL CO LTD9 citations74
US6466536B1Oct 15, 2002
Objective lens for high-density optical recording medium
FUJI PHOTO OPTICAL CO LTD7 citations74
US6094308AJul 25, 2000
Diffraction type filter having a wavelength selectivity
FUJI PHOTO OPTICAL CO LTD12 citations74
US5680256AOct 21, 1997
Lens for reading out optical recording medium
FUJI PHOTO OPTICAL CO LTD8 citations74
US5600493AFeb 4, 1997
Finite conjugate lens system
FUJI PHOTO OPTICAL CO LTD12 citations74
US5889749AMar 30, 1999
Optical pickup apparatus
FUJI PHOTO OPTICAL CO LTD7 citations73
US4953958ASep 4, 1990
Variable magnification duplicator lens system
FUJI PHOTO OPTICAL CO LTD10 citations72
US6552851B2Apr 22, 2003
Achromatic beam shaping prism
FUJI PHOTO OPTICAL CO LTD3 citations63
US5661607AAug 26, 1997
Lens for reading out optical recording medium
FUJI PHOTO OPTICAL CO LTD5 citations63
US6542314B2Apr 1, 2003
Objective lens for optical recording media and optical pickup apparatus using the same
FUJI PHOTO OPTICAL CO LTD6 citations61
FUJIFILM CORP
6 patentsUS9176304B2Nov 3, 2015
Imaging lens
FUJIFILM CORP9 citations84
US9170404B2Oct 27, 2015
Imaging lens
FUJIFILM CORP6 citations84
US9030764B2May 12, 2015
Imaging lens and imaging apparatus
FUJIFILM CORP11 citations84
US8902516B2Dec 2, 2014
Imaging lens and imaging apparatus
FUJIFILM CORP16 citations84
US9036269B2May 19, 2015
Imaging lens and imaging apparatus
FUJIFILM CORP4 citations73
US9019634B2Apr 28, 2015
Imaging lens and imaging apparatus
FUJIFILM CORP6 citations73