Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7057230 | Nonvolatile semiconductor memory device employing transistors having different gate withstand voltages for enhanced reading speed | Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito +6 more | 2006-06-06 |
| 6963507 | Nonvolatile memory, semiconductor device, and method of programming to nonvolatile memory | Toshihiro Tanaka, Yutaka Shinagawa, Kazufumi Suzukawa, Masamichi Fujito, Kiichi Makuta +2 more | 2005-11-08 |
| 6643193 | Semiconductor device, microcomputer and flash memory | Kan Takeuchi, Mitsuru Hirakii, Toshihiro Tanaka, Yutaka Shinagawa, Masamichi Fujito | 2003-11-04 |
| 6567313 | Nonvolatile memory, semiconductor device and method of programming to nonvolatile memory | Toshihiro Tanaka, Yutaka Shinagawa, Kazufumi Suzukawa, Masamichi Fujito, Kiichi Makuta +2 more | 2003-05-20 |
| 6477090 | Semiconductor device, microcomputer and flash memory | Kan Takeuchi, Mitsuru Hiraki, Toshihiro Tanaka, Yutaka Shinagawa, Masamichi Fujito | 2002-11-05 |