HS

Hubert Song

OT Oak Technology: 3 patents #13 of 112Top 15%
ZO Zoran: 3 patents #24 of 200Top 15%
KC Konishiroku Photo Industries Co.: 2 patents #1 of 10Top 10%
VE Verbatim: 2 patents #24 of 80Top 30%
EP Excel Precision: 1 patents #2 of 9Top 25%
SR Sperry Rand: 1 patents #22 of 84Top 30%
Overall (All Time): #425,137 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7577066 Method and apparatus for providing high speed recording on an optical medium Akio Tanaka 2009-08-18
7054240 Method and apparatus for providing focus control on a multi layer disc Hwee Chin Ong 2006-05-30
6862088 Method and apparatus for providing adaptive control of track servo Hwee Chin Ong 2005-03-01
6633520 Method and apparatus for searching in a disk drive 2003-10-14
6549492 Method and apparatus for run-out correction in a disk drive 2003-04-15
6519213 Method and apparatus for reading data from a disk Hwee Chin Ong 2003-02-11
5991112 Non-contact servotrack writing with phase sensitive detection John Tsai, Mervyn L. Hopson, Kam Fung Yan, Jean Chi 1999-11-23
4833551 Dual head servo system and method for a magnetic disk 1989-05-23
4825310 Method and apparatus for recording servo synchronization information 1989-04-25
4446411 Optimum acceleration/deceleration circuit 1984-05-01
4414497 Digitally controllable electronic damper 1983-11-08
4193020 Phase lock control system with trajectory correction 1980-03-11