Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5134027 | Magnetic recording medium | Takafumi Yanagita | 1992-07-28 |
| 5098785 | Magnetic recording medium containing a copolymer having an anionic functional group which forms an intermolecular salt | Takafumi Yanagita, Narito Goto, Takuo Nishikawa, Noboru Koyama, Yasushi Nakano +1 more | 1992-03-24 |
| 5064720 | Magnetic recording medium containing a polyurethane binder resin having a betaine group in the form of an intermolecular salt | Atsuko Matsuda, Narito Goto | 1991-11-12 |