Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6342715 | Nonvolatile semiconductor memory device | Kazuhiro Shimizu, Seiichi Aritome, Kazuhito Narita | 2002-01-29 |
| 6340611 | Nonvolatile semiconductor memory device | Kazuhiro Shimizu, Seiichi Aritome, Kazuhito Narita | 2002-01-22 |
| 6230505 | Heat pump type air conditioning system for automotive vehicle | Yoshitoshi Noda, Hiroyuki Yamaguchi, Toshio Ohashi, Kaoru Kamiyama, Tadayoshi Tajima +2 more | 2001-05-15 |
| 6228717 | Method of manufacturing semiconductor devices with alleviated electric field concentration at gate edge portions | Hiroaki Hazama, Kazumi Amemiya | 2001-05-08 |
| 6160297 | Semiconductor memory device having a first source line arranged between a memory cell string and bit lines in the direction crossing the bit lines and a second source line arranged in parallel to the bit lines | Kazuhiro Shimizu, Hiroshi Watanabe, Yuji Takeuchi, Seiichi Aritome | 2000-12-12 |
| 6157056 | Semiconductor memory device having a plurality of memory cell transistors arranged to constitute memory cell arrays | Yuji Takeuchi, Seiichi Aritome, Hiroshi Watanabe, Kazuhiro Shimizu | 2000-12-05 |
| 6133601 | Non-volatile semiconductor memory device with inter-layer insulation film | — | 2000-10-17 |
| 6125643 | Heat pump type air conditioning system for automotive vehicle | Yoshitoshi Noda, Hiroyuki Yamaguchi, Toshio Ohashi, Kaoru Kamiyama, Tadayoshi Tajima +2 more | 2000-10-03 |
| 5960156 | Video camera combined with recording and reproducing system having a camera unit, a viewfinder unit, and a battery unit arranged in a projection area of a recording and reproducing deck unit | Takanori Nishiyama, Akira Takahashi, Hiroto Takita, Takeshi Kawarai, Hisashi Shibata | 1999-09-28 |
| 5640035 | MOSFET having improved driving performance | Akira Sudo | 1997-06-17 |
| 5591999 | Electrically erasable programmable read only memory device with an improved memory cell pattern layout | Masaki Momodomi, Junichi Miyamoto | 1997-01-07 |
| 5559736 | Non-volatile semiconductor memory device capable of preventing excessive-writing | Naohiro Matsukawa, Keniti Imamiya, Michiharu Matsui | 1996-09-24 |
| 5385338 | Apparatus for melting aluminum alloy scraps | Yasushi Sato | 1995-01-31 |
| 5309008 | Semiconductor memory device having a trench capacitor | — | 1994-05-03 |
| 5255223 | Semiconductor memory device having alternatively operated equalizing and erasing functions | Takayuki Tanaka, Shinya Takahashi, Yuki Hashimoto | 1993-10-19 |
| 5142639 | Semiconductor memory device having a stacked capacitor cell structure | Yusuke Kohyama, Shizuo Sawada, Kinuyo Kohyama | 1992-08-25 |
| 5091762 | Semiconductor memory device with a 3-dimensional structure | — | 1992-02-25 |
| 5009020 | Light-passing decorative object | — | 1991-04-23 |
| 4985194 | Method of making a decorative object having a notch-cut back side | — | 1991-01-15 |
| 4975754 | Trench dual-gate MOSFET | Hidemi Ishiuchi, Kinuyo Tanaka | 1990-12-04 |