Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7859357 | Non-reciprocal circuit device | — | 2010-12-28 |
| 7308749 | Production method for dielectric resonator device | Takahiro Okada, Hideyuki Kato, Hitoshi Tada | 2007-12-18 |
| 6989722 | Dielectric filter, dielectric duplexer, and communication apparatus | Takahiro Okada, Hideyuki Kato | 2006-01-24 |
| 6833773 | Dielectric filter, dielectric duplexer, and communication apparatus incorporating the same | Hideki Tsukamoto, Takahiro Okada, Katsuhito Kuroda, Hideyuki Kato | 2004-12-21 |
| 6822538 | Dielectric filter, dielectric duplexer, and communication apparatus incorporating the same | Hideki Tsukamoto, Takahiro Okada, Katsuhito Kuroda, Hideyuki Kato | 2004-11-23 |
| 6788167 | Dielectric filter, dielectric duplexer, and communication apparatus incorporating the same | Takahiro Okada, Hideyuki Kato | 2004-09-07 |
| 6741149 | Dielectric filter, dielectric duplexer, and communication apparatus | Katsuhito Kuroda, Hideyuki Kato | 2004-05-25 |
| 6731186 | Composite dielectric filter device and communication apparatus incorporating the same | Takahiro Okada, Hideyuki Kato | 2004-05-04 |
| 6661310 | Dielectric duplexer and communication apparatus | Takahiro Okada, Hideyuki Kato | 2003-12-09 |
| 6646524 | Dielectric filter, dielectric duplexer, and communication apparatus | Takahiro Okada, Hideyuki Kato | 2003-11-11 |
| 6642817 | Dielectric filter, dielectric duplexer, and communication device | Katsuhito Kuroda, Hirofumi Miyamoto, Hideyuki Kato | 2003-11-04 |
| 6580338 | Dielectric filter, dielectric duplexer, communication apparatus, and method of designing dielectric resonator apparatus | Hideki Tsukamoto, Katsuhito Kuroda, Hideyuki Kato | 2003-06-17 |
| 6566987 | Dielectric filter, dielectric duplexer, and communication apparatus | Takahiro Okada, Hideyuki Kato | 2003-05-20 |
| 6549093 | Dielectric filter, duplexer, and communication apparatus incorporating the same | Hideki Tsukamoto, Katsuhito Kuroda, Hideyuki Kato | 2003-04-15 |
| 6549095 | Dielectric filter, dielectric duplexer, and communication apparatus | Hideki Tsukamoto, Katsuhito Kuroda, Hideyuki Kato | 2003-04-15 |
| 6545566 | Dielectric filter, dielectric duplexer, and communication device | Hideki Tsukamoto, Katsuhito Kuroda, Hideyuki Kato | 2003-04-08 |
| 6535082 | Dielectric filter, dielectric duplexer, and communication device using the same | Katsuhito Kuroda, Hideyuki Kato | 2003-03-18 |
| 6535078 | Dielectric filter, dielectric duplexer, and communication system | Takahiro Okada, Hideyuki Kato | 2003-03-18 |
| 6525625 | Dielectric duplexer and communication apparatus | Hideki Tsukamoto, Katsuhito Kuroda, Hideyuki Kato | 2003-02-25 |
| 6522224 | Method for adjusting characteristics of a dielectric filter | Takahiro Okada, Hideyuki Kato | 2003-02-18 |
| 6504446 | Method for adjusting characteristics of dielectric filter, method for adjusting characteristics of dielectric duplexer, and devices for practicing the methods | Hideyuki Kato | 2003-01-07 |
| 6498542 | Dielectric resonant device, dielectric filter, dielectric duplexer, communication apparatus including the same, and method for forming input-output electrode of the dielectric resonant device | Katsuhito Kuroda, Hideyuki Kato | 2002-12-24 |
| 6496088 | Dielectric filter dielectric duplexer and communication apparatus | Takahiro Okada, Hideyuki Kato | 2002-12-17 |
| 6470173 | Filter unit comprising a wideband bandpass filter and one band-elimination filter | Takahiro Okada, Hideyuki Kato | 2002-10-22 |
| 6433651 | Dielectric filter, composite dielectric filter, duplexer, and communication apparatus having resonance-line holes with offset steps | Katsuhito Kuroda, Hideyuki Kato | 2002-08-13 |