Issued Patents All Time
Showing 1–25 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7187027 | Stacked capacitor-type semiconductor storage device and manufacturing method thereof | Yusuke Kohyama, Takashi Ohsawa | 2007-03-06 |
| 7023044 | Stacked capacitor-type semiconductor storage device and manufacturing method thereof | Yusuke Kohyama, Takashi Ohsawa | 2006-04-04 |
| 6846733 | Stacked capacitor-type semiconductor storage device and manufacturing method thereof | Yusuke Kohyama, Takashi Ohsawa | 2005-01-25 |
| 6551894 | Stacked capacitor-type semiconductor storage device and manufacturing method thereof | Yusuke Kohyama, Takashi Ohsawa | 2003-04-22 |
| 6252281 | Semiconductor device having an SOI substrate | Tadashi Yamamoto | 2001-06-26 |
| 6130450 | Stacked capacitor-type semiconductor storage device and manufacturing method thereof | Yusuke Kohyama, Takashi Ohsawa | 2000-10-10 |
| 5726475 | Semiconductor device having different impurity concentration wells | Syuso Fujii, Masaki Ogihara | 1998-03-10 |
| 5410169 | Dynamic random access memory having bit lines buried in semiconductor substrate | Tadashi Yamamoto | 1995-04-25 |
| 5374838 | Semiconductor device having different impurity concentration wells | Syuso Fujii, Masaki Ogihara | 1994-12-20 |
| 5356830 | Semiconductor device and its manufacturing method | Susumu Yoshikawa, Shuichi Samata, Satoshi Maeda | 1994-10-18 |
| 5324975 | Semiconductor memory device | Jumpei Kumagai | 1994-06-28 |
| 5302542 | Method of making a semiconductor memory device | Koichi Kishi | 1994-04-12 |
| 5302844 | Semiconductor device and method for manufacturing the same | Tomohisa Mizuno | 1994-04-12 |
| 5276343 | Semiconductor memory device having a bit line constituted by a semiconductor layer | Jumpei Kumagai | 1994-01-04 |
| 5260226 | Semiconductor device having different impurity concentration wells | Syuso Fujii, Masaki Ogihara | 1993-11-09 |
| 5238860 | Semiconductor device having different impurity concentration wells | Syuso Fujii, Masaki Ogihara | 1993-08-24 |
| 5210437 | MOS device having a well layer for controlling threshold voltage | Seiko Iwasaki | 1993-05-11 |
| 5194752 | Semiconductor memory device | Jumpei Kumagai | 1993-03-16 |
| 5187566 | Semiconductor memory and method of manufacturing the same | Susumu Yoshikawa, Junpei Kumagai, Yasuo Matsumoto | 1993-02-16 |
| 5144388 | Semiconductor device having a plurality of FETs formed in an element area | Masaki Ogihara | 1992-09-01 |
| 5142639 | Semiconductor memory device having a stacked capacitor cell structure | Yusuke Kohyama, Toshiharu Watanabe, Kinuyo Kohyama | 1992-08-25 |
| 5110766 | Method of manufacturing a semiconductor device including forming a flattening layer over hollows in a contact hole | Satoshi Maeda, Satoshi Shinozaki | 1992-05-05 |
| 5111275 | Multicell semiconductor memory device | Masaki Ogihara | 1992-05-05 |
| 5079613 | Semiconductor device having different impurity concentration wells | Syuso Fujii, Masaki Ogihara | 1992-01-07 |
| 5041887 | Semiconductor memory device | Jumpei Kumagai | 1991-08-20 |