Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10845838 | Reference voltage generation circuit and semiconductor device | — | 2020-11-24 |
| 10354735 | Semiconductor device | Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito +6 more | 2019-07-16 |
| 10284184 | Booster circuit | — | 2019-05-07 |
| 10115469 | Semiconductor device | Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito +6 more | 2018-10-30 |
| 10096367 | Power supply circuit and semiconductor storage device | — | 2018-10-09 |
| 9812211 | Semiconductor device | Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito +6 more | 2017-11-07 |
| 9412459 | Semiconductor device | Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito +6 more | 2016-08-09 |
| 8854877 | Nonvolatile semiconductor memory device and method of reusing same | Yuji Nagashima, Bunsho Kuramori | 2014-10-07 |
| 8698224 | Semiconductor device | Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito +6 more | 2014-04-15 |
| 8565028 | Semiconductor nonvolatile memory device | — | 2013-10-22 |
| 8547751 | Non-volatile storage device | Bunsho Kuramori | 2013-10-01 |
| 8426904 | Semiconductor device | Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito +6 more | 2013-04-23 |
| 8017986 | Semiconductor device | Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito +6 more | 2011-09-13 |
| 7700992 | Semiconductor device | Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito +6 more | 2010-04-20 |
| 7551488 | Semiconductor nonvolatile memory trimming technique for output characteristic control and redundancy repair | Teruhiro Harada, Nobukazu Murata | 2009-06-23 |
| 7414283 | Semiconductor device | Toshihiro Tanaka, Yukiko Umemoto, Mitsuru Hiraki, Yutaka Shinagawa, Masamichi Fujito +6 more | 2008-08-19 |
| 7286410 | Semiconductor integrated circuit | Toshihiro Tanaka, Yutaka Shinagawa, Takashi Yamaki | 2007-10-23 |
| 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 |
| 6747895 | Nonvolatile semiconductor memory, data deletion method of nonvolatile semiconductor memory, information processing apparatus and nonvolatile semiconductor memory system | Yukiko Umemoto, Toshihiro Tanaka, Yutaka Shinagawa | 2004-06-08 |
| 6542411 | Nonvolatile memory and semiconductor device with controlled voltage booster circuit | Toshihiro Tanaka, Yutaka Shinagawa, Yoshiki Kawajiri, Masamichi Fujito | 2003-04-01 |
| 6519184 | Non-volatile memory device with plurality of threshold voltage distributions | Toshihiro Tanaka, Masayoshi Nakano, Norio Oza, Koki Watanabe, Yutaka Shinagawa | 2003-02-11 |
| 6321360 | System including a ferroelectric memory | Kan Takeuchi | 2001-11-20 |
| 6131177 | System including a ferroelectric memory | Kan Takeuchi | 2000-10-10 |