Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5917750 | Nonvolatile semiconductor memory with a protect circuit | Tadashi Miyakawa | 1999-06-29 |
| 5825205 | Level-shift circuit for driving word lines of negative gate erasable type flash memory | — | 1998-10-20 |
| 5457661 | Semiconductor memory device having a delay circuit for controlling access time | Naoto Tomita, Imamiya Keniti, Junichi Miyamoto | 1995-10-10 |
| 5412609 | Nonvolatile semiconductor memory device | Junichi Miyamoto | 1995-05-02 |
| 5327392 | Semiconductor integrated circuit capable of preventing occurrence of erroneous operation due to noise | Sumio Tanaka | 1994-07-05 |
| 5296801 | Bias voltage generating circuit | Sumio Tanaka, Masao Kuriyama | 1994-03-22 |
| 5289053 | Nonvolatile semiconductor memory device | — | 1994-02-22 |
| 5239207 | Semiconductor integrated circuit | Junichi Miyamoto | 1993-08-24 |
| 5229963 | Semiconductor nonvolatile memory device for controlling the potentials on bit lines | Sumio Tanaka, Junichi Miyamoto, Shigeru Atsumi | 1993-07-20 |
| 5105385 | Cell array pattern layout for EEPROM device | Sumio Tanaka, Junichi Miyamoto, Shigeru Atsumi | 1992-04-14 |
| 5046048 | Semiconductor integrated circuit including output buffer | Shigeru Atsumi, Sumio Tanaka, Junichi Miyamoto, Keniti Imamiya | 1991-09-03 |
| 5025417 | Semiconductor memory device capable of preventing data of non-selected memory cell from being degraded | Junichi Miyamoto, Kuniyoshi Yoshikawa, Seiichi Mori | 1991-06-18 |
| 5023839 | Redundant semiconductor memory device | Noriaki Suzuki, Junichi Miyamoto | 1991-06-11 |
| 4999813 | Nonvolatile semiconductor memory having a stress test circuit | Junichi Miyamoto, Shigeru Atsumi | 1991-03-12 |
| 4974206 | Nonvolatile semiconductor memory device having reference potential generating circuit | Yumiko Iyama, Junichi Miyamoto, Sumio Tanaka | 1990-11-27 |
| 4951257 | Reference setting circuit for determining written-in content in nonvolatile semiconductor memories | Keniti Imamiya, Sumio Tanaka, Junichi Miyamoto, Shigeru Atsumi, Yumiko Iyama | 1990-08-21 |
| 4943962 | Nonvolatile semiconductor memory having page mode programming function | Keniti Imamiya, Sumio Tanaka, Junichi Miyamoto, Shigeru Atsumi, Shinji Saito | 1990-07-24 |
| 4905194 | Semiconductor memory device with a circuit for analyzing defects in word-lines | Junichi Miyamoto | 1990-02-27 |
| 4897815 | High-speed write type nonvolatile semiconductor memory | Sumio Tanaka, Shinji Saito, Shigeru Atsumi | 1990-01-30 |
| 4893275 | High voltage switching circuit in a nonvolatile memory | Sumio Tanaka, Shigeru Atsumi, Keniti Imamiya | 1990-01-09 |
| 4825271 | Nonvolatile semiconductor memory | Sumio Tanaka, Masaki Sato, Shinji Saito, Shigeru Atsumi | 1989-04-25 |
| 4788663 | Nonvolatile semiconductor memory device with a lightly-doped drain structure | Sumio Tanaka, Shinji Saito, Shigeru Atsumi | 1988-11-29 |
| 4694429 | Semiconductor memory device | Sumio Tanaka, Shinji Saito, Shigeru Atsumi | 1987-09-15 |