Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5098851 | Fabricating a semiconductor photodetector by annealing to smooth the PN junction | Kazuhiro Ito, Hiroshi Matsuda, Ichiro Fujiwara | 1992-03-24 |
| 4816890 | Optoelectronic device | Hirobumi Ouchi, Ichiro Fujiwara, Hiroshi Matsuda, Kazuhiro Ito | 1989-03-28 |
| 4737015 | Optical waveguide having a silicon oxi-nitride layer | Koji Ishida, Hiroyoshi Matsumura, Kenji Hiruma, Akihito Hongo | 1988-04-12 |
| 4631402 | Optical electric-field measuring apparatus | Kazumasa Takagi, Hiroyoshi Matsumura | 1986-12-23 |
| 4604577 | Temperature-compensated magnetic field measuring instrument | Hiroyoshi Matsumura, Toshio Katsuyama, Norio Ohta, Tsuneo Suganuma, Yutaka Sugita | 1986-08-05 |
| 4595853 | Apparatus for and method of determining properties of saw substrates | Yukio Ito, Hirosi Takeuchi, Sakichi Ashida, Shigeru Jyomura | 1986-06-17 |
| 4581579 | Optical magnetic-field measuring apparatus having improved temperature characteristics | Hiroyoshi Matsumura, Tsuneo Suganuma, Norio Ohta, Keikichi Ando, Yuzuru Hosoe +1 more | 1986-04-08 |
| 4570064 | Optical D.C. electric-field measuring apparatus with optic sensing means exhibiting both electrooptic and photoelectric effects | Hiroyoshi Matsumura, Toshio Katsuyama, Tsuneo Suganuma | 1986-02-11 |
| 4490641 | Three electrode piezoelectric ceramic resonator | Hiroshi Takeuchi, Shigeru Jyo mura, Mitsutaka Hikita, Yukio Ito, Sakichi Ashida | 1984-12-25 |
| 4333842 | Piezoelectric single crystal and surface acoustic wave element employing the same | Yukio Ito, Sigeru Jyomura, Sakichi Ashida, Hiroshi Takeuchi | 1982-06-08 |
| 4243541 | Piezoelectric ceramics | Hiroshi Takeuchi, Yukio Ito, Shigeru Jyomura, Kunio Yamashita, Sakichi Ashida +1 more | 1981-01-06 |