Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5627488 | Delay circuit, oscillation circuit and semiconductor memory device | Toru Tanzawa, Tomoharu Tanaka, Koji Sakui | 1997-05-06 |
| 5615148 | Nonvolatile semiconductor memory | Hiroto Nakai | 1997-03-25 |
| 5436913 | Non-volatile semiconductor memory device using successively longer write pulses | Hiroto Nakai, Hideo Kato, Kaoru Tokushige, Masamichi Asano | 1995-07-25 |
| 5371702 | Block erasable nonvolatile memory device | Hiroto Nakai, Hideo Kato, Kaoru Tokushige, Masamichi Asano, Kazuhisa Kanazawa | 1994-12-06 |
| 4287420 | Stereoscopic X-ray device | Takeshi Muraki | 1981-09-01 |
| 4274005 | X-ray apparatus for computed tomography scanner | Takeshi Muraki, Heihachi Miura | 1981-06-16 |
| 4243492 | Process for purifying crude olefin oxides | Yoshiro Osawa, Isao Ouchi, Nobuteru Oda, Mitsuyoshi Yamazaki, Yukio Nishiyama | 1981-01-06 |
| 4188558 | X-ray tube | — | 1980-02-12 |