Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6272509 | Filter device | Hitonobu Furukawa, Hirokazu Kitamura, Tetsuya Fuke, Atsushi Doi | 2001-08-07 |
| 6084486 | Controllable filter and high frequency apparatus using the same | Masanori Suzuki, Hirokazu Kitamura | 2000-07-04 |