Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5609432 | Ballpoint pen containing an aqueous ink composition | Takeyuki Yamamoto, Yasuyuki Sugimoto, Itaru Wakagi, Shinichi Murakata | 1997-03-11 |
| 5594562 | Hand-writable polymer dispersed liquid crystal board set with high resistance layer adjacent conductive layer | Morio Sato, Yutaka Abe, Jun Takano, Hirokazu Ishii | 1997-01-14 |
| 5429503 | Magnetic display panel including substrates and multicell structure comprising nonorientational and uncrystallized polyester resin | Takeo Yokoyama | 1995-07-04 |
| 5351143 | Hand-writable polymer dispersed liquid crystal board set with high resistance layer of crosslinking polymer adjacent conductive layer | Morio Sato, Yutaka Abe, Jun Takano, Hirokazu Ishii | 1994-09-27 |
| 4707593 | Visible image magnetic card | Takeo Yokoyama, Hiroyuki Wada, Masaaki Sakurai | 1987-11-17 |
| 4643684 | Magnetic display panel | Hiroshi Sato | 1987-02-17 |
| 4536428 | Magnetic display panel | Hiroshi Sato | 1985-08-20 |
| 4368952 | Magnetic display panel using reversal magnetism | Hiroshi Sato | 1983-01-18 |