Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8736292 | Probe card and inspection apparatus | Tatsuo Ishigaki, Akihisa Akahira | 2014-05-27 |
| 8508247 | Electrical connecting apparatus | Akihisa Akahira, Yoshinori Kikuchi | 2013-08-13 |
| 6038180 | Semiconductor memory capable of detecting memory cells with small margins as well as sense amplifier | — | 2000-03-14 |
| 5150329 | Dynamic memory with a refresh control circuit | — | 1992-09-22 |
| 5029137 | Semiconductor memory device with tandem sense amplifier units | — | 1991-07-02 |
| 4952826 | Signal input circuit utilizing flip-flop circuit | — | 1990-08-28 |
| 4943738 | Digital signal input buffer circuit having a simple construction and capable of retaining data | — | 1990-07-24 |
| 4937479 | Data latch circuit with improved data write control function | — | 1990-06-26 |
| 4902911 | Semiconductor integrated circuit having a built-in power voltage generator | — | 1990-02-20 |
| 4785206 | Signal input circuit utilizing flip-flop circuit | — | 1988-11-15 |
| 4617647 | Memory circuit | — | 1986-10-14 |
| 4375596 | Reference voltage generator circuit | — | 1983-03-01 |