Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7157136 | Magnetic recording medium | Takeki Mochizuki, Koh Tsukamoto | 2007-01-02 |
| 7060340 | Magnetic recording medium | Takeki Mochizuki, Koh Tsukamoto | 2006-06-13 |
| 6723415 | Magnetic recording medium | Takeki Mochizuki, Koh Tsukamoto | 2004-04-20 |
| 4791503 | Magnetic tape cartridge made from heat resistant resinous material | Yoshinori Yamamoto | 1988-12-13 |