Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6214129 | Cleaning method with hydrochloric acid-hydrogen peroxide mixture | Yasuyuki Nakaoka, Kazuyuki Kan, Muneyuki Ishimura | 2001-04-10 |
| 5460989 | Electrically erasable and programmable semiconductor memory device with trench memory transistor and manufacturing method of the same | — | 1995-10-24 |
| 5338953 | Electrically erasable and programmable semiconductor memory device with trench memory transistor and manufacturing method of the same | — | 1994-08-16 |