Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7609551 | Semiconductor memory device | Tomoaki Shino, Takeshi Hamamoto, Hideaki Aochi, Takashi Ohsawa, Ryo Fukuda | 2009-10-27 |
| 7423313 | NAND-type semiconductor storage device and method for manufacturing same | Takeshi Hamamoto | 2008-09-09 |
| 7414879 | Semiconductor memory device | Yoshiaki Asao | 2008-08-19 |
| 6720606 | Dynamic semiconductor memory device having a trench capacitor | Katsuhiko Hieda, Shigeru Ishibashi, Yusuke Kohyama | 2004-04-13 |
| 6707706 | Semiconductor memory device and method for manufacturing the same | Katsuhiko Hieda | 2004-03-16 |
| 6292390 | Semiconductor device | Koji Sakui, Takehiro Hasegawa, Shigeyoshi Watanabe, Fujio Masuoka, Tsuneaki Fuse +3 more | 2001-09-18 |
| 6236079 | Dynamic semiconductor memory device having a trench capacitor | Katsuhiko Hieda | 2001-05-22 |
| 6232822 | Semiconductor device including a bipolar transistor biased to produce a negative base current by the impact ionization mechanism | Koji Sakui, Takehiro Hasegawa, Shigeyoshi Watanabe, Fujio Masuoka, Tsuneaki Fuse +3 more | 2001-05-15 |
| 6204527 | Semiconductor memory device and method for producing same | Akira Sudo, Kazumasa Sunouchi | 2001-03-20 |
| 5998821 | Dynamic ram structure having a trench capacitor | Katsuhiko Hieda | 1999-12-07 |
| 5905279 | Low resistant trench fill for a semiconductor device | Hiroyoshi Tanimoto | 1999-05-18 |
| 5747844 | Dynamic semiconductor memory device with higher density bit line/word line layout | Masami Aoki, Takashi Yamada, Hiroshi Takato, Tohru Ozaki, Katsuhiko Hieda | 1998-05-05 |
| 5578847 | Dynamic semiconductor memory device with higher density bit line/word line layout | Masami Aoki, Takashi Yamada, Hiroshi Takato, Tohru Ozaki, Katsuhiko Hieda | 1996-11-26 |
| 5488242 | Semiconductor memory device | Kazumasa Sunouchi, Hiroshi Takato, Tohru Ozaki, Naoko Okabe, Katsuhiko Hieda +4 more | 1996-01-30 |
| 5363325 | Dynamic semiconductor memory device having high integration density | Kazumasa Sunouchi, Tsuneaki Fuse, Takehiro Hasegawa, Shigeyoshi Watanabe, Fumio Horiguchi +1 more | 1994-11-08 |
| 5358808 | Exposure mask, method of manufacturing the same, and exposure method using the same | Makoto Nakase, Kouji Hishimoto, Hirotsugu Wada | 1994-10-25 |
| 5350708 | Method of making dynamic random access semiconductor memory device | Atsushi Yagishita, Katsuhiko Hieda, Fumio Horiguchi | 1994-09-27 |
| 5311050 | Semiconductor vertical MOSFET inverter circuit | Koji Sakui | 1994-05-10 |
| 5258635 | MOS-type semiconductor integrated circuit device | Hiroshi Takato, Fumio Horiguchi, Fujio Masuoka | 1993-11-02 |
| 5250830 | Dynamic type semiconductor memory device and its manufacturing method | Atsushi Yagishita, Katsuhiko Hieda, Fumio Horiguchi | 1993-10-05 |
| 5248628 | Method of fabricating a semiconductor memory device | Naoko Okabe, Satoshi Inoue, Kazumasa Sunouchi, Takashi Yamada, Hiroshi Takato | 1993-09-28 |
| 5234780 | Exposure mask, method of manufacturing the same, and exposure method using the same | Makoto Nakase, Kouji Hashimoto, Hirotsugu Wada | 1993-08-10 |
| 5164801 | A P channel MIS type semiconductor device | Katsuhiko Hieda, Kazumasa Sunouchi, Kazushi Tsuda, Hiroshi Takato, Naoko Takenouchi | 1992-11-17 |
| 5144579 | Semiconductor memory device and its fabricating method | Naoko Okabe, Satoshi Inoue, Kazumasa Sunouchi, Takashi Yamada, Hiroshi Takato | 1992-09-01 |
| 5138412 | Dynamic ram, having an improved large capacitance | Katsuhiko Hieda, Fumio Horiguchi | 1992-08-11 |