Issued Patents All Time
Showing 26–50 of 92 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5636160 | Nonvolatile semiconductor memory having a stress relaxing voltage applied to erase gate during data write | Sachiko Omino, Tadashi Miyakawa | 1997-06-03 |
| 5625591 | Non-volatile semiconductor memory device | Hideo Kato, Nobutake Sugiura, Kiyotaka Uchigane | 1997-04-29 |
| 5615165 | Non-volatile semiconductor memory device and memory system using the same | Tomoharu Tanaka, Masaki Momodomi, Hideo Kato, Hiroto Nakai, Yoshiyuki Tanaka +8 more | 1997-03-25 |
| 5597748 | Method of manufacturing NAND type EEPROM | Hiroshi Iwahashi, Ryouhei Kirisawa, Ryozo Nakayama, Satoshi Inoue, Riichiro Shirota +2 more | 1997-01-28 |
| 5592001 | Non-volatile semiconductor memory device | — | 1997-01-07 |
| 5576994 | Non-volatile semiconductor memory device | Hideo Kato, Nobutake Sugiura, Kiyotaka Uchigane | 1996-11-19 |
| 5546351 | Non-volatile semiconductor memory device and memory system using the same | Tomoharu Tanaka, Masaki Momodomi, Hideo Kato, Hiroto Nakai, Yoshiyuki Tanaka +8 more | 1996-08-13 |
| 5519654 | Semiconductor memory device with external capacitor to charge pump in an EEPROM circuit | Hideo Kato, Shinji Saito, Shigeru Matsuda | 1996-05-21 |
| 5436913 | Non-volatile semiconductor memory device using successively longer write pulses | Toshio Yamamura, Hiroto Nakai, Hideo Kato, Kaoru Tokushige | 1995-07-25 |
| 5428569 | Non-volatile semiconductor memory device | Hideo Kato, Hiroto Nakai, Kaoru Tokushige | 1995-06-27 |
| 5420822 | Non-volatile semiconductor memory device | Hideo Kato, Nobutake Sugiura, Kiyotaka Uchigane | 1995-05-30 |
| 5418742 | Nonvolatile semiconductor memory with block erase select means | — | 1995-05-23 |
| 5384742 | Non-volatile semiconductor memory | Tadashi Miyakawa | 1995-01-24 |
| 5371702 | Block erasable nonvolatile memory device | Hiroto Nakai, Hideo Kato, Kaoru Tokushige, Kazuhisa Kanazawa, Toshio Yamamura | 1994-12-06 |
| 5364805 | Method of manufacturing an EEPROM having an erasing gate electrode | Tadayuki Taura, Kazunori Kanebako, Hiroshi Iwahashi | 1994-11-15 |
| 5361227 | Non-volatile semiconductor memory device and memory system using the same | Tomoharu Tanaka, Masaki Momodomi, Hideo Kato, Hiroto Nakai, Yoshiyuki Tanaka +8 more | 1994-11-01 |
| 5323039 | Non-volatile semiconductor memory and method of manufacturing the same | Hiroshi Iwahashi, Ryouhei Kirisawa, Ryozo Nakayama, Satoshi Inoue, Riichiro Shirota +2 more | 1994-06-21 |
| 5297029 | Semiconductor memory device | Hiroto Nakai, Hideo Kato, Kaoru Tokushige | 1994-03-22 |
| 5257230 | Memory device including redundancy cells with programmable fuel elements and process of manufacturing the same | Kazuhiko Nobori, Taira Iwase, Makoto Takizawa, Shigefumi Ishiguro, Kazuo Yonehara +2 more | 1993-10-26 |
| 5210048 | Nonvolatile semiconductor memory device with offset transistor and method for manufacturing the same | Atsushi Shoji, Tadashi Miyakawa, Tadayuki Taura, Michiharu Inami | 1993-05-11 |
| 5175704 | Nonvolatile semiconductor memory device | Hidenobu Minagawa, Yuuichi Tatsumi, Hiroshi Iwahashi, Hiroto Nakai, Mizuho Imai | 1992-12-29 |
| 5162894 | Semiconductor integrated circuit having a dummy lead and shaped inner leads | Kiyoshi Kobayashi, Hiroshi Iwahashi, Hiroaki Kishi | 1992-11-10 |
| 5153684 | Nonvolatile semiconductor memory device with offset transistor | Atsushi Shoji, Tadashi Miyakawa, Tadayuki Taura, Michiharu Inami | 1992-10-06 |
| 5138579 | Semiconductor memory device having transfer gates which prevent high voltages from being applied to memory and dummy cells in the reading operation | Yuuichi Tatsumi, Hidenobu Minagawa, Hiroshi Iwahashi, Mizuho Imai | 1992-08-11 |
| 5124948 | Mask ROM with spare memory cells | Makoto Takizawa, Taira Iwase, Yasunori Arime | 1992-06-23 |