Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6350178 | Zone textured magnetic recording media and methods for their production | Joel R. Weiss, Joseph Leigh, Hiroshi Konishi, Nobuo Kurataka, Hiroki Hara +1 more | 2002-02-26 |
| 6335080 | Magnetic disk media and disk drives utilizing polymeric disk substrates | Joel R. Weiss, Zine-Eddine Boutaghou | 2002-01-01 |
| 6193590 | Abrasive tape for texturing magnetic recording media | Joel R. Weiss, Joseph Leigh, Hiroshi Konishi, Nobuo Kurataka, Hiroki Hara +1 more | 2001-02-27 |
| 5849212 | Electroviscous fluid containing .beta.-alumina | Eiji Hattori, Yasuo Oguri | 1998-12-15 |
| 5798164 | Zone textured magnetic recording media | Joel R. Weiss, Joseph Leigh, Hiroshi Konishi, Nobuo Kurataka, Hiroki Hara +1 more | 1998-08-25 |
| 5750048 | Electroviscous fluid | Eiji Hattori, Yasuo Oguri | 1998-05-12 |
| 5496484 | Electroviscous fluids containing semiconducting particles and dielectric particles | Yukio Chida, Iwao Yamamoto, Kenji Watanabe | 1996-03-05 |
| 4883912 | Process for the recovery of acetic acid | Kunio Koga, Mutsumi Samejima | 1989-11-28 |