Issued Patents All Time
Showing 176–200 of 230 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657882 | Semiconductor memory device and various systems mounting them | — | 2003-12-02 |
| 6657883 | Semiconductor memory device | — | 2003-12-02 |
| 6643163 | Semiconductor device | — | 2003-11-04 |
| 6625053 | Nonvolatile semiconductor memory device having ferroelectric capacitors | — | 2003-09-23 |
| 6574133 | Nonvolatile ferroelectric memory device having dummy cell circuit | — | 2003-06-03 |
| 6552922 | Chain-type ferroelectric random access memory (FRAM) with rewrite transistors coupled between a sense amplifier and a bit line pair | Ryu Ogiwara, Sumio Tanaka, Yukihito Oowaki, Yoshiaki Takeuchi | 2003-04-22 |
| 6549449 | Semiconductor device | — | 2003-04-15 |
| 6522589 | Semiconductor apparatus and mode setting method for semiconductor apparatus | Tadashi Miyakawa, Yukihito Oowaki | 2003-02-18 |
| 6507510 | Nonvolatile semiconductor memory device having ferroelectric capacitors | — | 2003-01-14 |
| 6493251 | Ferroelectric memory device | Katsuhiko Hoya | 2002-12-10 |
| 6487104 | Semiconductor memory device | — | 2002-11-26 |
| 6473330 | Chain type ferroelectric memory with isolation transistors coupled between a sense amplifier and an equalization circuit | Ryu Ogiwara, Sumio Tanaka, Yukihito Oowaki, Yoshiaki Takeuchi | 2002-10-29 |
| 6473331 | Semiconductor memory device and various systems mounting them | — | 2002-10-29 |
| 6333668 | Semiconductor device for suppressing current peak flowing to/from an external power supply | — | 2001-12-25 |
| 6320782 | Semiconductor memory device and various systems mounting them | — | 2001-11-20 |
| 6278165 | MIS transistor having a large driving current and method for producing the same | Yukihito Oowaki, Mizuki Ono, Mitsuhiro Noguchi, Akira Nishiyama | 2001-08-21 |
| 6198652 | Non-volatile semiconductor integrated memory device | Takashi Kawakubo, Kazuhide Abe | 2001-03-06 |
| 6191971 | Ferroelectric memory device | Sumio Tanaka | 2001-02-20 |
| RE36993 | Dynamic random access memory device with the combined open/folded bit-line pair arrangement | Shigeyoshi Watanabe | 2000-12-19 |
| 6151242 | Semiconductor memory device | — | 2000-11-21 |
| 6147918 | Dynamic semiconductor memory device having an improved sense amplifier layout arrangement | Kenji Tsuchida, Yukihito Oowaki | 2000-11-14 |
| 6094370 | Semiconductor memory device and various systems mounting them | — | 2000-07-25 |
| 5969998 | MOS semiconductor device with memory cells each having storage capacitor and transfer transistor | Yukihito Oowaki, Daisuke Kato | 1999-10-19 |
| 5953246 | Semiconductor memory device such as a DRAM capable of holding data without refresh | Yukihito Oowaki | 1999-09-14 |
| 5931927 | Device for reducing the fluctuation of power supply voltage due to inductance by inverting bits in groups of data lines | — | 1999-08-03 |