Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5750238 | Electrostatic information recording medium | Masayuki Iijima, Osamu Shimizu, Yoshiaki Tsuruoka, Kayoko Sugiyama | 1998-05-12 |
| 5721042 | Electrostatic information recording medium | Masayuki Iijima, Osamu Shimizu, Yoshiaki Tsuruoka, Kayoko Sugiyama | 1998-02-24 |
| 5583670 | Polymer dispersed liquid crystal information recording medium with information recording layer comprising acrylic or methacrylic resin having molecular weight of 25,000 to 100,000 and information recording and reproducing method | Masayuki Iijima | 1996-12-10 |
| 5527589 | Electrostatic information recording medium | Masayuki Iijima, Osamu Shimizu, Yoshiaki Tsuruoka, Kayoko Sugiyama | 1996-06-18 |