HC

Han-kook Choi

Samsung: 43 patents #2,389 of 75,807Top 4%
Sumitomo Electric Industries: 2 patents #9,741 of 21,551Top 50%
Overall (All Time): #71,110 of 4,157,543Top 2%
43
Patents All Time

Issued Patents All Time

Showing 26–43 of 43 patents

Patent #TitleCo-InventorsDate
6788645 Disk cartridge Yong-hoon Lee, Chong-sam Chung, Heui-jong Kang 2004-09-07
6728200 Cartridge for an information recording medium Jong Pil Park, In-sik Park, Young-sun Seo, Jung-wan Ko 2004-04-27
6728076 Cartridge having sensor hole to be opened/closed and apparatus and method for driving the same Jung-wan Ko, Dong-Ho Shin, In-sik Park, Young-sun Seo, Jong-phil Park +2 more 2004-04-27
6724709 Disc cartridge and system Yong-hoon Lee 2004-04-20
6724696 Four-axial driving actuator for optical pickup Seok-jung Kim, Yong-hoon Lee, Tae-yong Doh, Sun-mo Kim 2004-04-20
6606295 Disc accomodating adaptor and a method and apparatus for driving the same Young-sun Seo, Dong-Ho Shin, In-sik Park, Jung-wan Ko, Jong Pil Park +2 more 2003-08-12
6580569 Optical pickup assembly Seok-jung Kim 2003-06-17
6574189 Cartridge having sensor hole to be opened/closed and apparatus and method for driving the same Jung-wan Ko, Dong-Ho Shin, In-sik Park, Young-sun Seo, Jong-phil Park +2 more 2003-06-03
6512731 Optical recording/reproducing apparatus and method for using various sizes, and types of recording/reproducing mediums therein Young-sun Seo, In-sik Park, Myoung-Jong Song 2003-01-28
6473260 Optical information recording/reproducing apparatus and method for using both disc cartridges holding 8cm and 12cm disc Young-sun Seo, In-sik Park, Myoung-iong Song 2002-10-29
6445677 Cartridge for an information recording medium Jong Pil Park, In-sik Park, Young-sun Seo, Jung-wan Ko 2002-09-03
6438099 Cartridge for an information recording medium Jong Pil Park, In-sik Park, Young-sun Seo, Jung-wan Ko 2002-08-20
6404731 Cartridge for accommodating a disc Young-sun Seo, Jong Pil Park, Young-min Cheong, In-sik Park 2002-06-11
6310855 Cartridge for accomodating optical discs of different sizes 2001-10-30
6304537 Optical information recording/reproducing apparatus and method for using both disc cartridges holding 8CM and 12CM disc Young-sun Seo, In-sik Park, Myoung-Jong Song 2001-10-16
6295255 Optical pickup having a tilt mechanism to adjust an optical axis of an incident light beam Young-sun Seo, Pyong-yong Seong, In-sik Park, Hee-deuk Park, Young-min Cheong +1 more 2001-09-25
6005836 Optical pickup tilt adjustable disk player including tilt adjustable unit for controlling the tilt of a motor plate 1999-12-21
5673244 Disk loading and magnetic head lifting mechanism using a single power source for a minidisk player 1997-09-30