Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7190254 | Emigrant reception system, emigrant gate system, emigrant control system, emigrant control method, passport applicant information management method, layout of emigrant gate, immigrant reception system, immigrant gate system, immigrant control system, immigrant control method, layout of immigrant gate system, and passport | Ryo Imura, Yasuhiko Mizuno | 2007-03-13 |
| 7182257 | Distribution management method and system | Yasuhiko Mizuno, Rei Itsuki | 2007-02-27 |
| 6880753 | Distribution management method and system | Yasuhiko Mizuno, Rei Itsuki | 2005-04-19 |
| RE37427 | Dynamic type memory | Satoru Takase, Kiyofumi Sakurai | 2001-10-30 |
| 6141288 | Semiconductor memory device allowing change of refresh mode and address switching method therewith | Kenji Numata | 2000-10-31 |
| 5970015 | Semiconductor integrated circuit device allowing change of product specification and chip screening method therewith | Kenji Numata | 1999-10-19 |
| 5812481 | Semiconductor integrated circuit device allowing change of product specification and chip screening method therewith | Kenji Numata | 1998-09-22 |
| 5726475 | Semiconductor device having different impurity concentration wells | Shizuo Sawada, Syuso Fujii | 1998-03-10 |
| 5712827 | Dynamic type memory | Satoru Takase, Kiyofumi Sakurai | 1998-01-27 |
| 5642326 | Dynamic memory | Kiyofumi Sakurai, Satoru Takase | 1997-06-24 |
| 5633827 | Semiconductor integrated circuit device allowing change of product specification and chip screening method therewith | Kenji Numata | 1997-05-27 |
| 5619162 | Dram using word line potential circuit control | — | 1997-04-08 |
| 5586078 | Dynamic type memory | Satoru Takase, Kiyofumi Sakurai | 1996-12-17 |
| 5559748 | Semiconductor integrated circuit allowing change of product specification and chip screening method therewith | Kenji Numata | 1996-09-24 |
| 5550504 | Dram using word line potential control circuit | — | 1996-08-27 |
| 5475646 | Screening circuitry for a dynamic random access memory | — | 1995-12-12 |
| 5420816 | Semiconductor memory apparatus with configured word lines to reduce noise | Syuso Fujii | 1995-05-30 |
| 5386386 | Redundancy circuit having a spare memory block replacing defective memory cells in different blocks | — | 1995-01-31 |
| 5374838 | Semiconductor device having different impurity concentration wells | Shizuo Sawada, Syuso Fujii | 1994-12-20 |
| 5371710 | Semiconductor memory device having test mode | — | 1994-12-06 |
| 5335205 | DRAM using word line potential control circuitcircuit | — | 1994-08-02 |
| 5303193 | Semiconductor device | — | 1994-04-12 |
| 5272672 | Semiconductor memory device having redundant circuit | — | 1993-12-21 |
| 5260226 | Semiconductor device having different impurity concentration wells | Shizuo Sawada, Syuso Fujii | 1993-11-09 |
| 5238860 | Semiconductor device having different impurity concentration wells | Shizuo Sawada, Syuso Fujii | 1993-08-24 |