Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6828867 | Slot electrode dielectric resonator, inductor, capacitor, dielectric filter, oscillator, and communication device | Yohei Ishikawa, Hiroaki Tanaka, Yutaka Ida | 2004-12-07 |
| 6717492 | Planar dielectric integrated circuit with line conversion conductor patterns | Yohei Ishikawa, Koichi Sakamoto, Sadao Yamashita | 2004-04-06 |