Issued Patents All Time
Showing 26–50 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7061808 | Semiconductor memory device, driving method thereof, and portable electronic apparatus | Yoshifumi Yaoi, Hiroshi Iwata, Akihide Shibata, Masaru Nawaki | 2006-06-13 |
| 7050337 | Writing control method and writing control system of semiconductor storage device, and portable electronic apparatus | Yasuaki Iwase, Yoshifumi Yaoi, Hiroshi Iwata, Akihide Shibata, Masaru Nawaki | 2006-05-23 |
| 7050331 | Semiconductor memory device and portable electronic apparatus | Nobuaki Matsuoka, Masaru Nawaki, Hiroshi Iwata, Akihide Shibata | 2006-05-23 |
| 7027341 | Semiconductor readout circuit | — | 2006-04-11 |
| 7023731 | Semiconductor memory device and portable electronic apparatus | Koji Hamaguchi, Masaru Nawaki, Hiroshi Iwata, Akihide Shibata | 2006-04-04 |
| 7016222 | Nonvolatile semiconductor memory device | — | 2006-03-21 |
| 7009892 | Semiconductor memory device and portable electronic apparatus | Masaru Nawaki, Hiroshi Iwata, Akihide Shibata | 2006-03-07 |
| 7009884 | Semiconductor storage device, display device and portable electronic equipment | Yoshifumi Yaoi, Hiroshi Iwata, Akihide Shibata, Masaru Nawaki | 2006-03-07 |
| 6992933 | Programming verification method of nonvolatile memory cell, semiconductor memory device, and portable electronic apparatus having the semiconductor memory device | Yasuaki Iwase, Yoshifumi Yaoi, Hiroshi Iwata, Akihide Shibata, Masaru Nawaki | 2006-01-31 |
| 6992930 | Semiconductor memory device, method for driving the same and portable electronic apparatus | Nobuaki Matsuoka, Masaru Nawaki, Hiroshi Iwata, Akihide Shibata, Kohji Hamaguchi | 2006-01-31 |
| 6992926 | Driver circuit for semiconductor storage device and portable electronic apparatus | Yasuaki Iwase, Yoshifumi Yaoi, Hiroshi Iwata, Akihide Shibata, Masaru Nawaki | 2006-01-31 |
| 6990022 | Semiconductor memory device and portable electronic apparatus | Masaru Nawaki, Hiroshi Iwata, Akihide Shibata | 2006-01-24 |
| 6982906 | Electrically programmable and electrically erasable semiconductor memory device | Nobuaki Matsuoka, Masaru Nawaki, Hiroshi Iwata, Akihide Shibata | 2006-01-03 |
| 6977843 | Semiconductor memory device with malfunction prevention device, and portable electronic apparatus using the same | Koji Hamaguchi, Masaru Nawaki, Hiroshi Iwata, Akihide Shibata | 2005-12-20 |
| 6944077 | Reading circuit and semiconductor memory device including the same | — | 2005-09-13 |
| 6937505 | Nonvolatile memory cell and nonvolatile semiconductor memory device | — | 2005-08-30 |
| 6920058 | Semiconductor memory device | — | 2005-07-19 |
| 6894929 | Method of programming semiconductor memory device having memory cells and method of erasing the same | Nobuaki Matsuoka, Masaru Nawaki, Hiroshi Iwata, Akihide Shibata | 2005-05-17 |
| 6862251 | Semiconductor memory device | Yoshifumi Yaoi, Hiroshi Iwata, Akihide Shibata, Masaru Nawaki | 2005-03-01 |
| 6822504 | Correction circuit for generating a control signal for correcting a characteristic change of a transistor, a delay circuit using the same, and a ring oscillator circuit using the same | — | 2004-11-23 |
| 6710638 | Voltage conversion circuit and semiconductor device | — | 2004-03-23 |
| 6707725 | Reference voltage generation circuit for semiconductor memory device, memory reading circuit including same, and electronic information device including the same | — | 2004-03-16 |
| 6559514 | Semiconductor memory device having auxiliary conduction region of reduced area | — | 2003-05-06 |
| 6535214 | Semiconductor device for display control | Junichi Tanimoto | 2003-03-18 |
| 6353560 | Semiconductor memory device | — | 2002-03-05 |