Issued Patents All Time
Showing 51–75 of 76 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5998821 | Dynamic ram structure having a trench capacitor | Akihiro Nitayama | 1999-12-07 |
| 5914510 | Semiconductor memory device and method of manufacturing the same | — | 1999-06-22 |
| 5747844 | Dynamic semiconductor memory device with higher density bit line/word line layout | Masami Aoki, Takashi Yamada, Hiroshi Takato, Tohru Ozaki, Akihiro Nitayama | 1998-05-05 |
| 5736760 | Random access memory device with trench-type one-transistor memory cell structure | Masami Aoki, Takeshi Hamamoto | 1998-04-07 |
| 5702567 | Plurality of photolithographic alignment marks with shape, size and spacing based on circuit pattern features | Tadashi Mitsui | 1997-12-30 |
| 5578847 | Dynamic semiconductor memory device with higher density bit line/word line layout | Masami Aoki, Takashi Yamada, Hiroshi Takato, Tohru Ozaki, Akihiro Nitayama | 1996-11-26 |
| 5561311 | Semiconductor memory with insulation film embedded in groove formed on substrate | Takeshi Hamamoto, Fumio Horiguchi | 1996-10-01 |
| 5508541 | Random access memory device with trench-type one-transistor memory cell structure | Masami Aoki, Takeshi Hamamoto | 1996-04-16 |
| 5488242 | Semiconductor memory device | Kazumasa Sunouchi, Hiroshi Takato, Tohru Ozaki, Naoko Okabe, Fumio Horiguchi +4 more | 1996-01-30 |
| 5468576 | Method for manufacturing exposure mask | Tsuyoshi Shibata, Koji Hashimoto | 1995-11-21 |
| 5387532 | Semiconductor memory having capacitor electrode formed above bit line | Takeshi Hamamoto, Fumio Horiguchi | 1995-02-07 |
| 5371024 | Semiconductor device and process for manufacturing the same | Fumio Horiguchi, Hiroshi Takato, Fujio Masuoka | 1994-12-06 |
| 5363325 | Dynamic semiconductor memory device having high integration density | Kazumasa Sunouchi, Tsuneaki Fuse, Akihiro Nitayama, Takehiro Hasegawa, Shigeyoshi Watanabe +1 more | 1994-11-08 |
| 5350708 | Method of making dynamic random access semiconductor memory device | Atsushi Yagishita, Akihiro Nitayama, Fumio Horiguchi | 1994-09-27 |
| 5262282 | Pattern forming method | Iwao Higashikawa | 1993-11-16 |
| 5250830 | Dynamic type semiconductor memory device and its manufacturing method | Atsushi Yagishita, Akihiro Nitayama, Fumio Horiguchi | 1993-10-05 |
| 5235199 | Semiconductor memory with pad electrode and bit line under stacked capacitor | Takeshi Hamamoto, Fumio Horiguchi | 1993-08-10 |
| 5164801 | A P channel MIS type semiconductor device | Kazumasa Sunouchi, Akihiro Nitayama, Kazushi Tsuda, Hiroshi Takato, Naoko Takenouchi | 1992-11-17 |
| 5155059 | Method of manufacturing dynamic RAM | — | 1992-10-13 |
| 5138412 | Dynamic ram, having an improved large capacitance | Akihiro Nitayama, Fumio Horiguchi | 1992-08-11 |
| 5119155 | Semiconductor memory device with dielectric isolation | Tohru Ozaki | 1992-06-02 |
| 5106774 | Method of making trench type dynamic random access memory device | Fumio Horiguchi, Takeshi Hamamoto, Akihiro Nitayama, Kazumasa Sunouchi, Kei Kurosawa +1 more | 1992-04-21 |
| 5072269 | Dynamic ram and method of manufacturing the same | — | 1991-12-10 |
| 5061649 | Field effect transistor with lightly doped drain structure and method for manufacturing the same | Naoko Takenouchi | 1991-10-29 |
| 5012308 | Semiconductor memory device | — | 1991-04-30 |