Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8578703 | Exhaust emission purifying apparatus for internal combustion engine | Kiminobu Hirata, Nobuhiko Masaki, Hisashi Akagawa | 2013-11-12 |
| 8011176 | Exhaust emission purifying apparatus for internal combustion engine | Kiminobu Hirata, Nobuhiko Masaki, Hisashi Akagawa | 2011-09-06 |
| 6507728 | Radio transceiver and a method of preventing transmission spurious response | Nozomu Watanabe | 2003-01-14 |
| 6442379 | Radio apparatus and method having a d.c. component signal superposed on a transmission-signal | — | 2002-08-27 |
| 6226496 | Antenna malfunction detecting system | — | 2001-05-01 |