Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
KJ

Kochan Ju

HTHeadway Technologies: 110 patents #9 of 309Top 3%
IBM: 15 patents #7,450 of 70,183Top 15%
HBHgst Netherlands, B.V.: 6 patents #124 of 972Top 15%
MAMaglabs: 6 patents #1 of 4Top 25%
HGHGST: 1 patents #1,032 of 1,677Top 65%
Los Gatos, CA: #22 of 2,986 inventorsTop 1%
California: #1,129 of 386,348 inventorsTop 1%
Overall (All Time): #7,199 of 4,157,543Top 1%
140 Patents All Time

Issued Patents All Time

Showing 126–140 of 140 patents

Patent #TitleCo-InventorsDate
5684658 High track density dual stripe magnetoresistive (DSMR) head Xizeng Shi, Yimin Guo, Cherng-Chyi Han, Yimin Hsu, Jei-Wei Chang 1997-11-04
5652687 Planarized thin film magnetic write head with submicron trackwidth Mao-Min Chen, Neil Leslie Robertson, Hugo Alberto Emilio Santini 1997-07-29
5488528 Pole tip structure for thin film magnetic heads Mao-Min Chen, Neil Leslie Robertson, Po-Kang Wang 1996-01-30
5452165 Close packed magnetic head linear array Mao-Min Chen, Mohamad Towfik Krounbi, Denny Tang, Po-Kang Wang 1995-09-19
5393376 Method of making pole tip structure for thin film magnetic heads Mao-Min Chen, Neil Leslie Robertson, Po-Kang Wang 1995-02-28
5375023 Submicron thin film inductive head with self-aligned staggered pole-tips Mohamad Towfik Krounbi, Po-Kang Wang 1994-12-20
5285340 Thin film magnetic head with conformable pole tips Mohamad Towfik Krounbi 1994-02-08
5285339 Magnetoresistive read transducer having improved bias profile Mao-Min Chen, Mohamad Towfik Krounbi, Ching Hwa Tsang, Po-Kang Wang 1994-02-08
5282308 Thin film planarization process for fabricating magnetic heads employing a stitched pole structure Mao-Min Chen, Rodney Lee, Ching Hwa Tsang 1994-02-01
5079663 Magnetoresistive sensor with track following capability Mohamad Towfik Krounbi, Po-Kang Wang 1992-01-07
4414649 Gap tolerant merge element for contiguous-disk bubble devices Timothy J. Gallagher 1983-11-08
4394746 Swap gate for ion-implanted contiguous-disk bubble devices Richard George Hirko, Ian L. Sanders 1983-07-19
4386418 Conductorless swap gate for ion-implanted contiguous-disk bubble devices 1983-05-31
4346457 Dovetail propagation structure for contiguous disk bubble devices Hung Liang Hu 1982-08-24
4342098 Asymmetric sawtooth contiguous disk propagation pattern Hung Liang Hu 1982-07-27