Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5098785 | Magnetic recording medium containing a copolymer having an anionic functional group which forms an intermolecular salt | Tsutomu Kempo, Narito Goto, Takuo Nishikawa, Noboru Koyama, Yasushi Nakano +1 more | 1992-03-24 |
| 5084336 | Magnetic recording medium | Tsutomu Kenpo | 1992-01-28 |