Issued Patents All Time
Showing 101–117 of 117 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5001108 | Semiconductor device having a superconductive wiring | — | 1991-03-19 |
| 4974040 | Dynamic random access memory device and method of producing same | Taiji Ema | 1990-11-27 |
| 4956681 | Ternary logic circuit using resonant-tunneling transistors | Naoki Yokoyama | 1990-09-11 |
| 4939568 | Three-dimensional integrated circuit and manufacturing method thereof | Takashi Kato | 1990-07-03 |
| 4868418 | Comparator circuit using resonant-tunneling transistor | Kenichi Imamura | 1989-09-19 |
| 4803535 | Dynamic random access memory trench capacitor | — | 1989-02-07 |
| 4801989 | Dynamic random access memory having trench capacitor with polysilicon lined lower electrode | — | 1989-01-31 |
| 4791616 | Semiconductor memory device | Yoshihiro Takemae | 1988-12-13 |
| 4758992 | Method and device for refreshing dynamic semiconductor memory device | — | 1988-07-19 |
| 4743953 | Random access memory cell with MIS capacitor having insulator of oxide of doped metal | Nobuo Toyokura | 1988-05-10 |
| 4690699 | Apparatus for producing sterile air | Ko Sugisawa, Kazuya Sekiguchi, Masayuki Nakatani, Hitoshi Iwata | 1987-09-01 |
| 4635085 | Semiconductor memory device | — | 1987-01-06 |
| 4622570 | Semiconductor memory | — | 1986-11-11 |
| 4559963 | System for feeding liquid substances | Ko Sugisawa, Kazuya Sekiguchi, Masayuki Nakatani, Hitoshi Iwata | 1985-12-24 |
| 4539903 | Filling apparatus | Ko Sugisawa, Kazuya Sekiguchi, Masayuki Nakatani, Hitoshi Iwata | 1985-09-10 |
| 4516596 | System for cleaning a three-way valve | Ko Sugisawa, Kazuya Sekiguchi, Masayuki Nakatani, Hitoshi Iwata | 1985-05-14 |
| 4419743 | Semiconductor memory device | Takashi Ito | 1983-12-06 |