Issued Patents All Time
Showing 25 most recent of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE38544 | Thin film magnetic alloy having low noise, high coercivity and high squareness | Tsutomu Yamashita, Rajiv Yadav Ranjan, John Ko-Jen Chen, Keith Kadokura, Ting Joseph Yuen | 2004-07-06 |
| 6730420 | Magnetic thin film recording media having extremely low noise and high thermal stability | Gerardo A. Bertero, Charles Chen, Wei Cao | 2004-05-04 |
| 6500567 | Ultra-thin nucleation layer for magnetic thin film media and the method for manufacturing the same | Gerardo A. Bertero, Charles Chen, Tsutomu Yamashita, Makoto Imakawa, Michinobu Suekane | 2002-12-31 |
| 6482505 | Multi-layer texture layer | Gerardo A. Bertero, Javier Wong | 2002-11-19 |
| 6156404 | Method of making high performance, low noise isotropic magnetic media including a chromium underlayer | Caroline A. Ross | 2000-12-05 |
| 6150015 | Ultra-thin nucleation layer for magnetic thin film media and the method for manufacturing the same | Gerardo A. Bertero, Charles Chen, Tsutomu Yamashita, Makoto Imakawa, Michinobu Suekane | 2000-11-21 |
| 6086730 | Method of sputtering a carbon protective film on a magnetic disk with high sp.sup.3 content | Wen-Hong Liu, Gang Peng, Tsutomu Yamashita | 2000-07-11 |
| 6068891 | Method for laser texturing a glass ceramic substrate and the resulting substrate | Thomas A. O'Dell, David Treves | 2000-05-30 |
| 6013161 | Thin film magnetic alloy having low noise, high coercivity and high squareness | Tsutomu Yamashita, John Ko-Jen Chen, Rajiv Yadav Ranjan, Keith Kadokura, Ting Joseph Yuen | 2000-01-11 |
| 5976326 | Method of sputtering selected oxides and nitrides for forming magnetic media | Rajiv Yadav Ranjan, Miaogen Lu, Tsutomu Yamashita | 1999-11-02 |
| 5908514 | Magnetic alloy for improved corrosion resistance and magnetic performance | Rajiv Yadav Ranjan, Tsutomu Yamashita, John Ko-Jen Chen | 1999-06-01 |
| 5851688 | Thin film magnetic alloy having low noise, high coercivity, and high squareness | Tsutomu Yamashita, John Ko-Jen Chen, Rajiv Yadav Ranjan, Keith Kadokura, Ting Joseph Yuen | 1998-12-22 |
| 5846648 | Magnetic alloy having a structured nucleation layer and method for manufacturing same | Michinobu Suekane, Makoto Imakawa, Kazuhiko Mitarai | 1998-12-08 |
| 5736013 | Method for forming an improved magnetic media including sputtering of selected oxides or nitrides in the magnetic layer, and apparatus for same | Rajiv Yadav Ranjan, Miaogen Lu, Tsutomu Yamashita | 1998-04-07 |
| 5695387 | CSS magnetic recording head slider and method of making same | Mark D. Moravec, Tracy L. Scott, Kyou H. Lee, Tsutomu Yamashita, Tam Huu Nguyen | 1997-12-09 |
| 5673156 | Hard disk drive system having virtual contact recording | Tsutomu Yamashita, Kyou H. Lee, Yasuo Sakane | 1997-09-30 |
| 5658659 | Magnetic alloy and method for manufacturing same | Rajiv Yadav Ranjan, Tsutomu Yamashita, Miaogen Lu, Keith Kadokura, John Ko-Jen Chen +1 more | 1997-08-19 |
| 5631094 | Magnetic alloy for improved corrosion resistance and magnetic performance | Rajiv Yadav Ranjan, Tsutomu Yamashita, John Ko-Jen Chen | 1997-05-20 |
| 5573847 | Magneto-optic disk exhibiting a phase shift between plus and minus twelve degrees and a reflectivity between fifteen and twenty-five percent | David Treves | 1996-11-12 |
| 5180640 | Magnetic recording medium comprising a magnetic alloy layer of cobalt nickel, platinum and chromium formed directly on a nickel alloy amorphous underlayer | Tsutomu Yamashita, Phuong Nguyen | 1993-01-19 |
| 5153044 | Magnetic disk for longitudinal recording comprising an amorphous intermediate layer | Tsutomu Yamashita | 1992-10-06 |
| 5087481 | Method for texturing a magnetic disk silicate glass substrate | Toru Iseda, Kazuo Mannami | 1992-02-11 |
| 4988578 | Method for manufacturing a thin film magnetic recording medium | Tsutomu Yamashita, Ching-Cheng Shir | 1991-01-29 |
| 4929500 | Corrosion resistant magnetic disk | Tsutomu Yamashita, Ching-Cheng Shir | 1990-05-29 |
| 4898774 | Corrosion and wear resistant magnetic disk | Tsutomu Yamashita, Ching-Cheng Shir, Ga-Lane Chen | 1990-02-06 |