Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6996001 | Magnetic memory device, write current drive circuit, and write current drive method | Joichiro Ezaki, Keiji Koga | 2006-02-07 |
| 6930911 | Magnetic memory device, method for writing on the same and method for reading from the same | Joichiro Ezaki, Keiji Koga | 2005-08-16 |
| 6591329 | Flash memory system for restoring an internal memory after a reset event | Hiroya Kitagawa, Teruo Shimada | 2003-07-08 |
| 6581132 | Flash memory system including a memory manager for managing data | Hiroya Kitagawa, Teruo Shimada | 2003-06-17 |
| 5640349 | Flash memory system | Hiroshi Karibe, Yukio Terasaki | 1997-06-17 |
| 5292616 | Optical card of closed type | Minoru Fujita, Yoichi Fukushima | 1994-03-08 |
| 5217844 | Optical recording medium, method of producing the same and method of producing the optical recording card | Yoichi Fukushima, Minoru Fujita | 1993-06-08 |
| 5114531 | Method of producing masks for ROM type optical recording cards and method of inspecting masks | Yoichi Fukushima, Minoru Fujita | 1992-05-19 |
| 5111033 | Optical card | Minoru Fujita, Yoichi Fukushima | 1992-05-05 |
| 5010243 | Method of producing an optical recording card having a hologram contained therein | Yoichi Fukushima, Minoru Fujita, Toshio Haga | 1991-04-23 |
| 4945215 | Optical recording card having hologram contained therein and method of producing the same | Yoichi Fukushima, Minoru Fujita, Toshio Haga | 1990-07-31 |
| 4860275 | Optical recording card and method of reading the same | Minoru Fujita | 1989-08-22 |