Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6970140 | Antenna apparatus and portable apparatus using the same | Yasuhiro Hibino, Ryuichi Kamimoto, Akira Ito | 2005-11-29 |
| 5937509 | Method of manufacturing linear-circular polarizer | Katsuhiko Tokuda, Yoshikazu Yoshimura | 1999-08-17 |
| 5760660 | Orthogonal polarized wave branching filter and its manufacturing method | Yoshikazu Yoshimura | 1998-06-02 |
| 5724050 | Linear-circular polarizer having tapered polarization structures | Katsuhiko Tokuda, Yoshikazu Yoshimura | 1998-03-03 |