Issued Patents All Time
Showing 1–25 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12267010 | Switching power circuit | Ryoma Matsuo, Katsumasa Tanaka | 2025-04-01 |
| 12148468 | Semiconductor memory device and control device for semiconductor memory device | Hiroshi Yoshida, Satoru Araki, Etsuo Fukuda, Tetsuo Endoh | 2024-11-19 |
| 11601037 | Rectangular-wave-signal generating circuit and switching power supply | — | 2023-03-07 |
| 11594963 | Switching power circuit | Ryoma Matsuo, Katsumasa Tanaka | 2023-02-28 |
| 11290010 | Switching power circuit | Ryoma Matsuo, Katsumasa Tanaka | 2022-03-29 |
| 10871793 | Constant voltage power source circuit | Kosuke Tashiro | 2020-12-22 |
| 9985549 | Control of a dead time in a DC-DC converter | — | 2018-05-29 |
| 8928302 | Step-up/down type power supply circuit | — | 2015-01-06 |
| 8716998 | DC-DC converter and digital pulse width modulator | Daisuke Miyashita, Jun Deguchi | 2014-05-06 |
| 8279700 | Semiconductor electrically programmable fuse (eFuse) having a polysilicon layer not doped with an impurity ion and a programming method thereof | Osamu Wada | 2012-10-02 |
| 8130562 | Semiconductor memory device having shift registers | Daichi Kaku | 2012-03-06 |
| 8120974 | Nonvolatile semiconductor memory device | Kensuke Matsufuji | 2012-02-21 |
| 8116152 | Nonvolatile semiconductor memory device capable of preventing write-disturb and method of programming | Daichi Kaku | 2012-02-14 |
| 8045414 | Non-volatile semiconductor memory device | — | 2011-10-25 |
| 8032815 | Semiconductor memory device | Hiroaki Nakano | 2011-10-04 |
| 7956397 | Semiconductor device, charge pumping circuit, and semiconductor memory circuit | Osamu Wada | 2011-06-07 |
| 7928796 | Constant voltage boost power supply | — | 2011-04-19 |
| 7924642 | Sense amp circuit, and semiconductor memory device using the same | — | 2011-04-12 |
| 7924598 | Nonvolatile semiconductor memory | Mariko Hase | 2011-04-12 |
| 7796460 | Nonvolatile semiconductor memory device | Kensuke Matsufuji, Hiroshi Ito | 2010-09-14 |
| 7768341 | Semiconductor charge pump using MOS (metal oxide semiconductor) transistor for current rectifier device | Hiroshi Ito | 2010-08-03 |
| 7733713 | Non-volatile semiconductor storage device | Hiroaki Nakano, Hiroshi Ito, Osamu Wada, Atsushi Nakayama | 2010-06-08 |
| 7656738 | Nonvolatile semiconductor storage device having a low resistance write-bit-line and a low capacitance read-bit-line pair | — | 2010-02-02 |
| 7640466 | Semiconductor integrated circuit device incorporating a data memory testing circuit | Atsushi Nakayama | 2009-12-29 |
| 7630226 | Semiconductor device | Kensuke Matsufuji | 2009-12-08 |