Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6058046 | Nonvolatile semiconductor memory cell capable of saving overwritten cell and its saving method | Hiroshi Nakamura | 2000-05-02 |
| 5959895 | Nonvolatile semiconductor memory cell capable of saving overwritten cell and its saving method | Hiroshi Nakamura | 1999-09-28 |
| 5917756 | Nonvolatile semiconductor memory cell capable of saving overwritten cell and its saving method | Hiroshi Nakamura | 1999-06-29 |
| 5834968 | Low pass filter | — | 1998-11-10 |
| 5812001 | Power-on reset circuit for resetting semiconductor integrated circuit | — | 1998-09-22 |
| 5777930 | Test potential transfer circuit | Yoshihisa Sugiura, Yoshihisa Iwata | 1998-07-07 |
| 5761122 | Semiconductor memory device with program/erase verification | Hiroshi Nakamura, Junichi Miyamoto, Yoshihisa Iwata | 1998-06-02 |
| 5691941 | Nonvolatile semiconductor memory cell capable of saving overwritten cell and its saving method | Hiroshi Nakamura | 1997-11-25 |
| 5640365 | Semiconductor memory device with a decoding peripheral circuit for improving the operation frequency | Shinji Miyano, Katsuhiko Sato, Tomoaki Yabe | 1997-06-17 |
| 5610859 | Semiconductor memory device | Hiroshi Nakamura, Junichi Miyamoto, Yoshihisa Iwata | 1997-03-11 |
| 5559736 | Non-volatile semiconductor memory device capable of preventing excessive-writing | Naohiro Matsukawa, Toshiharu Watanabe, Michiharu Matsui | 1996-09-24 |
| 5233566 | Address detector of a redundancy memory cell | Shigeru Atsumi, Sumio Tanaka | 1993-08-03 |
| 5046048 | Semiconductor integrated circuit including output buffer | Shigeru Atsumi, Sumio Tanaka, Junichi Miyamoto, Nobuaki Ohtsuka | 1991-09-03 |
| 4951257 | Reference setting circuit for determining written-in content in nonvolatile semiconductor memories | Sumio Tanaka, Junichi Miyamoto, Shigeru Atsumi, Yumiko Iyama, Nobuaki Ohtsuka | 1990-08-21 |
| 4943962 | Nonvolatile semiconductor memory having page mode programming function | Sumio Tanaka, Junichi Miyamoto, Shigeru Atsumi, Nobuaki Ohtsuka, Shinji Saito | 1990-07-24 |
| 4893275 | High voltage switching circuit in a nonvolatile memory | Sumio Tanaka, Shigeru Atsumi, Nobuaki Ohtsuka | 1990-01-09 |