Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10784393 | Photodetection element having a periodic nano-concave/convex structure | Hiroyasu Fujiwara, Wei Dong, Shohei Hayashi | 2020-09-22 |
| 10686094 | Photodetection element | Wei Dong, Hiroyasu Fujiwara | 2020-06-16 |
| 9368661 | Photodetector | Toru Hirohata, Minoru Niigaki, Wataru AKAHORI, Kazuue Fujita | 2016-06-14 |
| 8853809 | Optical element and photodetector | Toru Hirohata, Wataru Aka-Hori, Kazunori Tanaka, Kazuue Fujita | 2014-10-07 |
| 8294106 | Terahertz antenna module | — | 2012-10-23 |
| 8093560 | Photoconductive antenna element | Kazuyoshi Kuroyanagi | 2012-01-10 |
| 7816866 | Photocathode comprising a plurality of openings on an electron emission layer | Minoru Niigaki, Tomoko Mochizuki, Toru Hirohata | 2010-10-19 |
| 7787735 | Waveguide structure and optical device | Hiroyasu Fujiwara, Masamichi Yamanishi, Akira Higuchi | 2010-08-31 |
| 7259439 | Semiconductor photodetector and its production method | — | 2007-08-21 |
| 7217932 | UV sensor | Minoru Niigaki, Yasufumi Takagi, Yoshitaka Suzuki, Nobuharu Suzuki | 2007-05-15 |
| 7214971 | Semiconductor light-receiving device | Minoru Niigaki | 2007-05-08 |
| 7094664 | Method for fabricating semiconductor photodetector | Minoru Niigaki | 2006-08-22 |
| 5109358 | Optical flip-flop circuit | Yoshihiko Mizushima, Toru Hirohata, Takashi Iida, Yoshihisa Warashina, Kenichi Sugimoto +1 more | 1992-04-28 |
| 5068815 | Optical full adder | Yoshihiko Mizushima, Toru Hirohata, Takashi Iida, Yoshihisa Warashina, Kenichi Sugimoto +2 more | 1991-11-26 |
| 5051573 | Optical logic operation system | Yoshihiko Mizushima, Toru Hirohata, Takashi Iida, Yoshihisa Warashina, Kenichi Sugimoto +1 more | 1991-09-24 |
| 5034921 | High speed optical memory circuit | Hirofumi Kan, Kenichi Sugimoto, Yoshihiko Mizushima, Takashi Iida, Yoshihisa Warashina +1 more | 1991-07-23 |
| 5020064 | Electromagnetic wave device | Yoshihiko Mizushima, Takashi Iida, Toru Hirohata, Kenichi Sugimoto, Yoshihisa Warashina | 1991-05-28 |