Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7158424 | Semiconductor memory device | Hidefumi Ohtsuka, Kiyoto Ohta | 2007-01-02 |
| 7136312 | Semiconductor device having read and write operations corresponding to read and write row control signals | Kiyoto Ohta, Hirohito Kikukawa | 2006-11-14 |
| 7038967 | Semiconductor apparatus capable of performing refresh control | Toshitaka Uchikoba, Kiyoto Ohta | 2006-05-02 |
| 6999368 | Semiconductor memory device and semiconductor integrated circuit device | Kiyoto Ohta, Hirohito Kikukawa | 2006-02-14 |
| 6864693 | Semiconductor integrated circuit with negative voltage generation circuit, test method for the same, and recording device and communication equipment having the same | Masataka Kondo, Kiyoto Ohta | 2005-03-08 |
| 6785187 | Semiconductor device having integrated memory and logic | Shoji Sakamoto, Kiyoto Ohta | 2004-08-31 |
| 6654299 | Semiconductor device | Hidefumi Otsuka | 2003-11-25 |
| 6628555 | Semiconductor circuit having a detection circuit for controlling a power boosting circuit | Masataka Kondo, Kiyoto Oota, Yoshihiko Sumimoto | 2003-09-30 |
| 6621753 | Semiconductor device | Kiyoto Ohta, Yuji Yamasaki | 2003-09-16 |
| 6570802 | Semiconductor memory device | Hidefumi Ohtsuka, Yuji Yamasaki | 2003-05-27 |
| 6532187 | Semiconductor device having integrated memory and logic | Shoji Sakamoto, Kiyoto Ohta | 2003-03-11 |
| 6507529 | Semiconductor device | Kiyoto Ohta, Yuji Yamasaki | 2003-01-14 |
| 6459643 | Semiconductor integrated circuit | Masataka Kondo, Kiyoto Oota, Yoshihiko Sumimoto | 2002-10-01 |
| 6349072 | Random access memory device | Kenichi Origasa, Kiyoto Oota | 2002-02-19 |
| 6295243 | Semiconductor device | Hidefumi Otsuka | 2001-09-25 |
| 6192003 | Semiconductor memory device using a relatively low-speed clock frequency and capable of latching a row address and a column address with one clock signal and performing a page operation | Kiyoto Ohta | 2001-02-20 |
| 6122214 | Semiconductor memory | Kiyoto Oota | 2000-09-19 |