Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7666763 | Nanosilicon semiconductor substrate manufacturing method and semiconductor circuit device using nanosilicon semiconductor substrate manufactured by the method | Akira Kumagai, Yoichiro Numasawa | 2010-02-23 |
| 7589002 | Method of forming an oxygen- or nitrogen-terminated silicon nanocrystalline structure and an oxygen- or nitrogen-terminated silicon nanocrystalline structure formed by the method | Yoichiro Numasawa | 2009-09-15 |
| 6281536 | Ferroelectric memory device with improved ferroelectric capacity characteristic | Sota Shinohara, Kazushi Amanuma, Yuukoh Katoh, Tsuneo Takeuchi, Yoshihiro Hayashi | 2001-08-28 |
| 5518962 | Planarized interlayer insulating film formed of stacked BPSG film and ozone-teos NSG film in semiconductor device and method for forming the same | — | 1996-05-21 |
| 5491108 | Method of producing semiconductor integrated circuit device having interplayer insulating film covering substrate | Mieko Suzuki, Tetsuya Homma, Takaho Tanigawa, Hiroki Koga | 1996-02-13 |