Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6197682 | Structure of a contact hole in a semiconductor device and method of manufacturing the same | John M. Drynan | 2001-03-06 |
| 6039958 | Stabilized live vaccine | Juichiro Osame | 2000-03-21 |
| 5953609 | Method of manufacturing a semiconductor memory device | John M. Drynan | 1999-09-14 |
| 5948411 | Stabilized live vaccine | Juichiro Osame | 1999-09-07 |
| 5939746 | Semiconductor memory device and manufacturing method of the same | John M. Drynan | 1999-08-17 |
| 5929524 | Semiconductor device having ring-shaped conductive spacer which connects wiring layers | John M. Drynan | 1999-07-27 |
| 5780310 | Method of fabricating a memory cell array area and a peripheral circuit area | — | 1998-07-14 |
| 5610101 | Method of manufacturing a semiconductor device having improved coverage with increased wiring layers | — | 1997-03-11 |
| 5604382 | Semiconductor device with pillar-shaped contact layer | — | 1997-02-18 |
| 5581124 | Semiconductor device having wiring and contact structure | — | 1996-12-03 |
| 5554864 | Semiconductor device having improved coverage with increased wiring layers | — | 1996-09-10 |
| 5536682 | Method for manufacturing a semiconductor device | — | 1996-07-16 |
| 5514910 | Semiconductor device having multi-level interconnection structure | — | 1996-05-07 |
| 5486713 | Semiconductor device having a capacitor | — | 1996-01-23 |
| 5451269 | Semiconductor memory device including an improved substrate structure and method of fabricating the same | — | 1995-09-19 |
| 5451819 | Semiconductor device having conductive plug projecting from contact hole and connected at side surface thereof to wiring layer | — | 1995-09-19 |
| 5447883 | Method of manufacturing semiconductor device | — | 1995-09-05 |
| 5348904 | Method of fabricating semiconductor memory device including an improved substrate structure | — | 1994-09-20 |
| 5124767 | Dynamic random access memory cell with improved stacked capacitor | — | 1992-06-23 |
| 5068698 | MOS semiconductor device having high-capacity stacked capacitor | — | 1991-11-26 |