Issued Patents All Time
Showing 76–100 of 116 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5696731 | Semiconductor memory device using internal voltage obtained by boosting supply voltage | — | 1997-12-09 |
| 5642072 | High voltage generator circuit | Shigeru Atsumi, Yasuo Itoh | 1997-06-24 |
| 5612924 | Semiconductor memory device using internal voltage obtained by boosting supply voltage | — | 1997-03-18 |
| 5610859 | Semiconductor memory device | Hiroshi Nakamura, Yoshihisa Iwata, Keniti Imamiya | 1997-03-11 |
| 5591999 | Electrically erasable programmable read only memory device with an improved memory cell pattern layout | Masaki Momodomi, Toshiharu Watanabe | 1997-01-07 |
| 5557568 | Non-volatile semiconductor memory device with verify mode for verifying data written to memory cells | Yasuo Itoh, Yoshihisa Iwata | 1996-09-17 |
| 5465235 | Non-volatile memory device with a sense amplifier capable of copying back | — | 1995-11-07 |
| 5457661 | Semiconductor memory device having a delay circuit for controlling access time | Naoto Tomita, Imamiya Keniti, Nobuaki Ohtsuka | 1995-10-10 |
| 5452249 | Non-volatile semiconductor memory device with verify mode for verifying data written to memory cells | Yasuo Itoh, Yoshihisa Iwata | 1995-09-19 |
| 5432745 | Method for testing a memory device | Naoto Tomita | 1995-07-11 |
| 5430678 | Semiconductor memory having redundant cells | Naoto Tomita | 1995-07-04 |
| 5412609 | Nonvolatile semiconductor memory device | Nobuaki Ohtsuka | 1995-05-02 |
| 5388084 | Non-volatile semiconductor memory device with high voltage generator | Yasuo Itoh, Sumio Tanaka, Hiroshi Nakamura, Yoshihisa Iwata, Kenichi Imamiya +1 more | 1995-02-07 |
| 5371703 | Single-bit output type memory including bipolar selection transistors | — | 1994-12-06 |
| 5365098 | Non-volatile semiconductor memory having improved erasure characteristics | Kuniyoshi Yoshikawa, Kiyomi Naruke | 1994-11-15 |
| 5350938 | Nonvolatile semiconductor memory circuit with high speed read-out | Naohiro Matsukawa | 1994-09-27 |
| 5262919 | Semiconductor memory device including programming circuitry | Masao Kuriyama, Shigeru Atsumi | 1993-11-16 |
| 5257235 | Semiconductor memory device having serial access mode | — | 1993-10-26 |
| 5239207 | Semiconductor integrated circuit | Nobuaki Ohtsuka | 1993-08-24 |
| 5229963 | Semiconductor nonvolatile memory device for controlling the potentials on bit lines | Nobuaki Ohtsuka, Sumio Tanaka, Shigeru Atsumi | 1993-07-20 |
| 5111435 | Bipolar-CMOS semiconductor memory device | — | 1992-05-05 |
| 5105385 | Cell array pattern layout for EEPROM device | Nobuaki Ohtsuka, Sumio Tanaka, Shigeru Atsumi | 1992-04-14 |
| 5046048 | Semiconductor integrated circuit including output buffer | Shigeru Atsumi, Sumio Tanaka, Nobuaki Ohtsuka, Keniti Imamiya | 1991-09-03 |
| 5025417 | Semiconductor memory device capable of preventing data of non-selected memory cell from being degraded | Nobuaki Ohtsuka, Kuniyoshi Yoshikawa, Seiichi Mori | 1991-06-18 |
| 5023839 | Redundant semiconductor memory device | Noriaki Suzuki, Nobuaki Ohtsuka | 1991-06-11 |