Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6717860 | Method of erasing non-volatile semiconductor memory device and such non-volatile semiconductor memory device | — | 2004-04-06 |
| 6674120 | Nonvolatile semiconductor memory device and method of operation thereof | — | 2004-01-06 |
| 6541326 | Nonvolatile semiconductor memory device and process of production and write method thereof | — | 2003-04-01 |
| 6525379 | Memory device, method of manufacturing the same, and integrated circuit | Kazumasa Nomoto, Noriyuki Kawashima, Kenichi Taira | 2003-02-25 |
| 6483118 | Positron source, method of preparing the same, and automated system for supplying the same | Yoshiko Ito, Ren Iwata, Toshio Hyodo, Yasushige Yano, Akira Goto +2 more | 2002-11-19 |
| 6434053 | Nonvolatile semiconductor memory device and method of operation thereof | — | 2002-08-13 |
| 6301155 | Non-volatile semiconductor memory device and method of reading same | — | 2001-10-09 |
| 6289071 | Positron source, method of preparing the same and automated system for supplying the same | Yoshiko Ito, Ren Iwata, Toshio Hyodo, Yasushige Yano, Akira Goto +2 more | 2001-09-11 |
| 6191445 | Nonvolatile semiconductor memory device and method of reading a data therefrom | — | 2001-02-20 |
| 5999444 | Nonvolatile semiconductor memory device and writing and erasing method of the same | Yutaka Hayashi | 1999-12-07 |
| 5777977 | Recording and reproducing apparatus | Akio Machida, Shigeru Kojima | 1998-07-07 |
| 5098851 | Fabricating a semiconductor photodetector by annealing to smooth the PN junction | Kazuhiro Ito, Kazuyuki Nagatsuma, Hiroshi Matsuda | 1992-03-24 |
| 4816890 | Optoelectronic device | Hirobumi Ouchi, Hiroshi Matsuda, Kazuhiro Ito, Kazuyuki Nagatsuma | 1989-03-28 |
| 4634821 | Switching apparatus for a time switch | — | 1987-01-06 |
| 4332139 | Method for storage and recovery of thermal energy | Totaro Goto | 1982-06-01 |