Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882507 | Output circuit of semiconductor integrated circuit device | Yuuichi Tatsumi, Hidenobu Minagawa, Hiroshi Iwahashi, Mizuho Imai | 1989-11-21 |
| 4858192 | Semiconductor memory device with redundancy circuit | Yuuichi Tatsumi, Hidenobu Minagawa, Hiroshi Iwahashi, Mizuho Imai | 1989-08-15 |
| 4831592 | Nonvolatile semiconductor memory device | Hiroto Nakai, Hiroshi Iwahashi, Isao Sato, Shigeru Kumagai, Kazuto Suzuki | 1989-05-16 |
| 4819212 | Nonvolatile semiconductor memory device with readout test circuitry | Hiroto Nakai, Hiroshi Iwahashi, Isao Sato, Shigeru Kumagai, Kazuto Suzuki | 1989-04-04 |
| 4804929 | Control pulse generator | Hideo Kato, Hiroshi Iwahashi, Akira Narita, Shinichi Kikuchi | 1989-02-14 |
| 4799195 | Semiconductor memory device with a sense amplifier | Hiroshi Iwahashi | 1989-01-17 |