Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883711 | Magnetic recording medium | Yoshihiro Shiroishi, Sadao Hishiyama, Hiroyuki Suzuki, Tomoyuki Ohno, Yoshibumi Matsuda +4 more | 1989-11-28 |
| 4876144 | Single crystal thin film | Kenzo Susa, Toshio Kobayashi, Takanobu Takayama, Norio Ohta | 1989-10-24 |
| 4842917 | Magnetic recording medium and process for producing the same | Tomoyuki Ohno, Yoshihiro Shiroishi, Sadao Hishiyama, Hiroyuki Suzuki, Takaaki Shirakura +5 more | 1989-06-27 |
| 4833020 | Magnetic recording medium | Yoshihiro Shiroishi, Sadao Hishiyama, Hiroyuki Suzuki, Tomoyuki Ohno, Yoshibumi Matsuda +4 more | 1989-05-23 |
| 4803392 | Piezoelectric transducer | Keiko Kushida, Hiroshi Takeuchi, Toshio Kobayashi, Kenzo Susa | 1989-02-07 |