Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498508 | Semiconductor integrated circuit device and testing method therefor | — | 2002-12-24 |
| 6249134 | Semiconductor integrated circuit device and testing method thereof | — | 2001-06-19 |
| 5124581 | Emitter-coupled logic output circuit | — | 1992-06-23 |
| 4883990 | ECL-TTL level converter | — | 1989-11-28 |
| 4771190 | Emitter coupled logic circuit provided with pull-down resistors at respective bases of input transistors | — | 1988-09-13 |
| 4694198 | Schmitt trigger circuit | — | 1987-09-15 |
| 4689497 | Master-slave type flip-flop circuits | Kazuyoshi Yamada | 1987-08-25 |