Issued Patents 2002
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496413 | Semiconductor memory device for effecting erasing operation in block unit | Shigeru Atsumi | 2002-12-17 |
| 6480426 | Semiconductor integrated circuit device | Shigeru Atsumi, Masao Kuriyama, Akira Umezawa, Hironori Banba, Hidetoshi Saito | 2002-11-12 |
| 6445618 | Channel-erase nonvolatile semiconductor memory device | Shigeru Atsumi, Toru Tanzawa | 2002-09-03 |
| 6442080 | Nonvolatile semiconductor memory | Toru Tanzawa, Masao Kuriyama | 2002-08-27 |
| 6442082 | Voltage-level shifter and semiconductor memory using the same | Shigeru Atsumi | 2002-08-27 |
| 6373749 | Channel-erase nonvolatile semiconductor memory device | Shigeru Atsumi, Toru Tanzawa | 2002-04-16 |