Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8689430 | Method for providing a perpendicular magnetic recording (PMR)head | Yingjian Chen | 2014-04-08 |
| 8455119 | Disk having an underlayer that includes a plurality of nonmagnetic layers interleaved with magnetic layers | Hai Jiang, Yingjian Chen | 2013-06-04 |
| 8424192 | Method for manufacturing a pole for a magnetic recording head | Danning Yang, Lei Wang, Yingjian Chen, Brant Nease | 2013-04-23 |
| 8333008 | Method for manufacturing a perpendicular magnetic recording transducer | Lei Wang, Yingjian Chen | 2012-12-18 |
| 8209847 | Method of fabricating a magnetic head | — | 2012-07-03 |
| 8149536 | Perpendicular magnetic recording head having a pole tip formed with a CMP uniformity structure | Danning Yang, Yingjian Chen, Brant Nease | 2012-04-03 |
| 8018677 | Magnetic recording head formed by damascene process | Ki Sup Chung, Danning Yang, Yingjian Chen, Brant Nease | 2011-09-13 |
| 7968219 | Magnetically soft, high saturation magnetization laminate of iron-cobalt-nitrogen and iron-nickel for perpendicular media underlayers | Hai Jiang, Yingjian Chen | 2011-06-28 |
| 7911737 | Method and system for providing a PMR head having an antiferromagnetically coupled pole | Hai Jiang | 2011-03-22 |
| 7911735 | Perpendicular magnetic recording head utilizing a nonmagnetic underlayer layer | Mun-Hyoun Park, Honglin Zhu, Christopher Truong Ngo | 2011-03-22 |
| 7726009 | Method of fabricating a perpendicular recording write head having a gap with two portions | Yinshi Liu, Benjamin Chen, Hongping Yuan | 2010-06-01 |
| 7672080 | Laminated perpendicular writer head including amorphous metal | Yunjun Tang, Yingjian Chen | 2010-03-02 |
| 7522377 | Magnetic write head with high moment magnetic thin film formed over seed layer | Hai Jiang, Yingjian Chen | 2009-04-21 |
| 7444740 | Damascene process for fabricating poles in recording heads | Ki Sup Chung, Danning Yang, Yingjian Chen, Brant Nease | 2008-11-04 |
| 7354664 | Magnetically soft, high saturation magnetization laminate of iron-cobalt-nitrogen and iron-nickel for perpendicular media underlayers | Hai Jiang, Yingjian Chen | 2008-04-08 |
| 7296339 | Method for manufacturing a perpendicular magnetic recording head | Danning Yang, Yingjian Chen, Brant Nease | 2007-11-20 |
| 7289303 | Spin valve sensors having synthetic antiferromagnet for longitudinal bias | Ningjia Zhu, Yingjian Chen | 2007-10-30 |
| 7248431 | Method of fabricating a perpendicular recording write head having a gap with two portions | Yinshi Liu, Benjamin Chen, Hongping Yuan | 2007-07-24 |
| 7239478 | Write element for perpendicular recording in a data storage system | Yinshi Liu, Benjamin Chen, Francis H. Liu | 2007-07-03 |
| 7177117 | Magnetically soft, high saturation magnetization laminates of iron-cobalt-nitrogen and iron-nickel for magnetic head pole layers | Hai Jiang, Yingjian Chen | 2007-02-13 |
| 7134185 | Method of making narrow track width magnetoresistive sensor | Kenneth E. Knapp | 2006-11-14 |
| 7110289 | Method and system for controlling MRAM write current to reduce power consumption | Hugh C. Hiner, Xizeng Shi, William D. Jensen, Hua-Ching Tong, Matthew R. Gibbons +4 more | 2006-09-19 |
| 7027274 | Spin-dependent tunneling read/write sensor for hard disk drives | Yingjian Chen | 2006-04-11 |
| 7012832 | Magnetic memory cell with plural read transistors | Matthew R. Gibbons, William D. Jensen, Hugh C. Hiner, Xizeng Stone Shi, Roberto Bez +2 more | 2006-03-14 |
| 6958885 | Insulation layer structure for inductive write heads and method of fabrication | Yingjian Chen, Ronald A. Barr | 2005-10-25 |