Issued Patents All Time
Showing 76–95 of 95 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5576637 | XOR CMOS logic gate | Hiromi Kawashima, Tetsuji Takeguchi, Ryoji Hagiwara, Yasushi Kasa, Kiyoshi Itano +2 more | 1996-11-19 |
| 5572463 | Nonvolatile semiconductor memory with pre-read means | Masanobu Yoshida, Yasushige Ogawa, Yasushi Kasa, Shouichi Kawamura | 1996-11-05 |
| 5537356 | Nonvolatile semiconductor memory | Masanobu Yoshida, Yasushige Oqawa, Yasushi Kasa, Shouichi Kawamura | 1996-07-16 |
| 5521866 | Non-volatile semiconductor memory device having floating gate | — | 1996-05-28 |
| 5519652 | Nonvolatile semiconductor memory for positively holding stored data | Sinsuke Kumakura, Yasushige Ogawa, Tetsuya Chida | 1996-05-21 |
| 5490107 | Nonvolatile semiconductor memory | Masanobu Yoshida, Yasushige Ogawa, Yasushi Kasa, Shouichi Kawamura | 1996-02-06 |
| 5487036 | Nonvolatile semiconductor memory | Masanobu Yoshida, Yasushige Ogawa, Yasushi Kasa, Shouichi Kawamura | 1996-01-23 |
| 5452251 | Semiconductor memory device for selecting and deselecting blocks of word lines | Nobuaki Takashina, Yasushi Kasa, Kiyoshi Itano, Hiromi Kawashima, Minoru Yamashita | 1995-09-19 |
| 5428580 | Nonvolatile semiconductor memory having an address-transition-detection circuit | Hiromi Kawashima | 1995-06-27 |
| 5402383 | Electrically erasable non-volatile semiconductor memory device for selective use in boot block type or normal type flash memory devices | — | 1995-03-28 |
| 5309400 | Sense circuit for non-volatile memory device | — | 1994-05-03 |
| 5293344 | Write circuit for non-volatile memory device | — | 1994-03-08 |
| 5280451 | Signature circuit for non-volatile memory device | — | 1994-01-18 |
| 5237530 | Frasable non-volatile semiconductor memory device having read/write test function | Nobuaki Takashina, Masanobu Yoshida | 1993-08-17 |
| 5197030 | Semiconductor memory device having redundant memory cells | Mitsuo Higuchi | 1993-03-23 |
| 5091888 | Semiconductor memory device | — | 1992-02-25 |
| 5038327 | Decoder circuit of erasable programmable read only memory for avoiding erroneous operation caused by parasitic capacitors | — | 1991-08-06 |
| 4998223 | Programmable semiconductor memory apparatus | — | 1991-03-05 |
| 4802127 | Output buffer circuit for a semiconductor memory device | Takeo Tatematsu | 1989-01-31 |
| 4773046 | Semiconductor device having fuse circuit and detecting circuit for detecting states of fuses in the fuse circuit | Hiromi Kawashima | 1988-09-20 |