Inventor
SEKIYA HARUTAKA
JP14 patents
⚠️ This page may combine multiple inventors who share the name “SEKIYA HARUTAKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SAMSUNG ELECTRONICS CO LTD
9 patentsUS6999402B2Feb 14, 2006
Device and method of recording information on an optical disc
SAMSUNG ELECTRONICS CO LTD2 citations61
US6791923B2Sep 14, 2004
Device and method of recording information on an optical disc
SAMSUNG ELECTRONICS CO LTD3 citations61
US11796608B2Oct 24, 2023
Magnetic property measurement apparatus
SAMSUNG ELECTRONICS CO LTD0 citations58
US7411886B2Aug 12, 2008
Device and method of recording information on an optical disc
SAMSUNG ELECTRONICS CO LTD0 citations51
US7057989B2Jun 6, 2006
Device and method of recording information on an optical disc
SAMSUNG ELECTRONICS CO LTD0 citations51
US12327579B2Jun 10, 2025
Inspection device
SAMSUNG ELECTRONICS CO LTD0 citations48
US9256061B2Feb 9, 2016
Focus control apparatus and method
SAMSUNG ELECTRONICS CO LTD0 citations40
US7440373B2Oct 21, 2008
Optical disk drive detecting disk surface deviation
SAMSUNG ELECTRONICS CO LTD0 citations40
US9903705B2Feb 27, 2018
Apparatus for focus control and method for manufacturing semiconductor device
SAMSUNG ELECTRONICS CO LTD0 citations39
ALPS ELECTRIC CO LTD
5 patentsUS5220550AJun 15, 1993
Optical beam system for optical disk drives
ALPS ELECTRIC CO LTD22 citations92
US5940245AAug 17, 1999
Door opening-and-closing mechanism of recording/reproducing apparatus
ALPS ELECTRIC CO LTD26 citations91
US5978339ANov 2, 1999
Recording/reproducing apparatus with a buffer member used for mounting a mechanism body
ALPS ELECTRIC CO LTD16 citations73
US5796547AAug 18, 1998
Disk cartridge and drive mechanism thereof
ALPS ELECTRIC CO LTD3 citations62
US6154338ANov 28, 2000
Recording/reproducing apparatus
ALPS ELECTRIC CO LTD4 citations61