Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5742071 | Wiringless logical operation circuits | Peter Lee, Hitoshi Matsuo, Sigeo Ihara | 1998-04-21 |
| 5422496 | Interband single-electron tunnel transistor and integrated circuit | Toru Toyabe, Kozo Katayama, Shuichi Yamamoto, Sigeo Ihara | 1995-06-06 |
| 5323344 | Quantum memory device | Kozo Katayama | 1994-06-21 |
| 5258625 | Interband single-electron tunnel transistor and integrated circuit | Toru Toyabe, Kozo Katayama, Shuichi Yamamoto, Sigeo Ihara | 1993-11-02 |