Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5406524 | Nonvolatile semiconductor memory that eases the dielectric strength requirements | Shouichi Kawamura, Nobuaki Takashina, Kiyoshi Itano | 1995-04-11 |
| 5402380 | Nonvolatile semiconductor memory device having a status register and test method for the same | Sinsuke Kumakura, Hirokazu Yamazaki, Hisayoshi Watanabe | 1995-03-28 |
| 5293088 | Sense amplifier circuit | — | 1994-03-08 |
| 5247476 | Semiconductor memory device having a mask ROM and a PROM | — | 1993-09-21 |
| 5195057 | Semiconductor memory device having a redundant memory which can be selectively placed in a not-in-use status | Yuji Arayama, Seiji Hirayama | 1993-03-16 |
| 5179536 | Semiconductor memory device having means for replacing defective memory cells | Yoshihiro Takemae, Masanori Nagasawa, Yuji Arayama, Akira Terui, Sunao Araki | 1993-01-12 |
| 5034927 | Read only memory | — | 1991-07-23 |
| 4803665 | Signal transition detection circuit | — | 1989-02-07 |