Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6529438 | Semiconductor memory device implemented with a test circuit | Yoichi Suzuki, Akihiro Mishima, Mitsuhiko Kosakai, Makoto Segawa | 2003-03-04 |
| 6190953 | Semiconductor device and method for producing same | Wataru Igarashi | 2001-02-20 |
| 6013931 | Semiconductor device and method for producing the same | Wataru Igarashi | 2000-01-11 |
| 5172337 | Semiconductor memory device | Taira Iwase | 1992-12-15 |
| 5002896 | Mask-ROM manufacturing method that enhances integration density | — | 1991-03-26 |
| 4970686 | Semiconductor memory cells and semiconductor memory device employing the semiconductor memory cells | Thoru Mochizuki, Taira Iwase, Masamichi Asano | 1990-11-13 |