Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5138191 | Photoemitter | Yoshihiko Mizushima, Toru Hirohata, Tsuneo Ihara, Minoru Niigaki, Koichiro Oba +2 more | 1992-08-11 |
| 5109358 | Optical flip-flop circuit | Yoshihiko Mizushima, Kazutoshi Nakajima, Toru Hirohata, Takashi Iida, Yoshihisa Warashina +1 more | 1992-04-28 |
| 5068815 | Optical full adder | Yoshihiko Mizushima, Kazutoshi Nakajima, Toru Hirohata, Takashi Iida, Yoshihisa Warashina +2 more | 1991-11-26 |
| 5051573 | Optical logic operation system | Yoshihiko Mizushima, Kazutoshi Nakajima, Toru Hirohata, Takashi Iida, Yoshihisa Warashina +1 more | 1991-09-24 |
| 5034921 | High speed optical memory circuit | Kazutoshi Nakajima, Hirofumi Kan, Yoshihiko Mizushima, Takashi Iida, Yoshihisa Warashina +1 more | 1991-07-23 |
| 5020064 | Electromagnetic wave device | Yoshihiko Mizushima, Takashi Iida, Toru Hirohata, Yoshihisa Warashina, Kazutoshi Nakajima | 1991-05-28 |