Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7830590 | Magnetic migration and reversal display panel and magnetic migration and reversal display method | Ryuusuke Sakuma, Shinichi Murakata, Shunsuke Kajiwara, Takeo Yokoyama, Morio Sato | 2010-11-09 |
| 6585523 | Magnetic material-inverting display panel | Masami Tokunaga, Masahiko Ikeda, Takeo Yokoyama | 2003-07-01 |
| 6419498 | Magnetic material-inverting display panel | Masahiko Ikeda, Takeo Yokoyama | 2002-07-16 |