Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5493261 | Dielectric filter using quarter wavelength coaxial dielectric resonators connected in series | Yoshiaki Fujiyama, Takaki Ono, Atsunori Takasugi, Shotaro Hayashi | 1996-02-20 |
| 5139689 | Method for preparing PLZT transparent ceramic | Koichi Fukuda, Noriaki Arimura | 1992-08-18 |
| 4775649 | Dielectric porcelain composition | Mikio Hitaka, Tetsuya Fujimoto | 1988-10-04 |
| 4621067 | Dielectric ceramic composition | Harumi Ikezawa | 1986-11-04 |
| 4338471 | Process for preparing phenol | Sumio Umemura, Taizo Uda | 1982-07-06 |
| 4225462 | Catalyst for reducing nitrogen oxides and process for producing the same | Sumio Umemura, Shigeru Itoh, Yasutaka Arima, Kosuke Itoh, Hideaki Fukui | 1980-09-30 |