Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5933724 | Method of manufacturing a semiconductor integrated circuit device using a photomask in which transmitted light beam intensities are controlled | Toshihiro Sekiguchi, Yoshitaka Tadaki, Keizo Kawakita, Jun Murata, Katsuo Yuhara +7 more | 1999-08-03 |
| 5732009 | Semiconductor integrated circuit device including a DRAM in which a cell selection transistor has a stabilized threshold voltage | Yoshitaka Tadaki, Jun Murata, Katsuo Yuhara, Yuji Ezaki, Michio Tanaka +5 more | 1998-03-24 |