Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7094720 | Dielectric ceramic composition and dielectric resonator made from the composition | Takashi Oba, Hisashi Koduka | 2006-08-22 |
| 6995106 | Dielectric ceramic material | Takashi Oba, Masahiko Matsumiya, Akifumi Tosa | 2006-02-07 |
| 6881694 | Microwave dielectric porcelain composition and dielectric resonator | Toshihiro Mizui, Takuya Tarutani | 2005-04-19 |
| 6720280 | Dielectric composition for high frequency resonators | Katsuya Yamagiwa, Jun Otsuka, Takashi KASASHIMA, Manabu Sato, Takashi Oba +1 more | 2004-04-13 |
| 6569796 | Dielectric porcelain composition and dielectric resonator using the same | Takashi Oba, Akifumi Tosa, Kazushige Obayashi | 2003-05-27 |
| 6159885 | Alumina-based sintered material | Ken Mizuno, Yoshihiro Yamamoto, Toru Shimamori | 2000-12-12 |
| 6069104 | Microwave dielectric porcelain composition | Yuji Yasunishi | 2000-05-30 |