Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8612677 | Memory system and method of writing data in a memory system | — | 2013-12-17 |
| 6633531 | Optical disk drive | Mastoshi Hirono, Masayuki Sekimura, Makoto Asakura, Yoriyuki Ishibashi, Takao Ohmi +1 more | 2003-10-14 |
| 6590732 | Servo track writer for magnetic disks | Katsuyoshi Kitagawa, Hiroyuki Kuno, Tetsuzo Toya | 2003-07-08 |
| 5809003 | Optical disk and optical information reproducing apparatus | Kozo Taira, Toshiyuki Nakano, Masaaki Matsumaru | 1998-09-15 |
| 5467355 | Image forming apparatus provided with self-diagnosis system | Yasushi Umeda, Tetsuo Tomiyama, Hiroyuki Yoshikawa, Yoshiki Shimomura | 1995-11-14 |
| 5452438 | Image forming apparatus provided with self-diagnosis and self-repair system | Yasushi Umeda, Tetsuo Tomiyama, Hiroyuki Yoshikawa, Yoshiki Shimomura | 1995-09-19 |