Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11984913 | Multiplexer | — | 2024-05-14 |
| 11206011 | Filter and multiplexer | Hidetaro NAKAZAWA | 2021-12-21 |
| 10020637 | Method for manufacturing semiconductor device and semiconductor device | Satoshi Ae, Shoutarou Kitamura, Suguru KATO, Isao Watanabe | 2018-07-10 |
| 9998097 | Radio-frequency front-end circuit and communication device | Morio TAKEUCHI, Daisuke Miyazaki | 2018-06-12 |
| 9979159 | Semiconductor laser and manufacturing method thereof | — | 2018-05-22 |
| 9948278 | Filter device having a filter connection conductor line including parallel connected conductor lines | — | 2018-04-17 |
| 9860006 | Multiplexer, high-frequency front-end circuit, and communication device | — | 2018-01-02 |
| 9698569 | Method for manufacturing semiconductor device and semiconductor device | Satoshi Ae, Shoutarou Kitamura, Suguru KATO, Isao Watanabe | 2017-07-04 |
| 9608593 | Filter device having a first inductance in a chip substrate and a second inductance in a mounting substrate | — | 2017-03-28 |
| 9356576 | Filter device | Koichiro Kawasaki | 2016-05-31 |
| 9148123 | Ladder filter device and elastic wave resonator | Koichiro Kawasaki | 2015-09-29 |
| 8710940 | Elastic wave device having a capacitive electrode on the piezoelectric substrate | Shinichi SOGOYA, Takuma KUZUSHITA | 2014-04-29 |
| 8450130 | Method of manufacturing a semiconductor laser | Kentaro Tada, Kenji Endo, Kazuo Fukagai, Masahide Kobayashi | 2013-05-28 |
| 8228966 | Semiconductor laser and method of manufacturing semiconductor laser | Kentaro Tada, Kenji Endo, Kazuo Fukagai, Masahide Kobayashi | 2012-07-24 |
| 7868716 | Acoustic wave filter apparatus | — | 2011-01-11 |
| 7602827 | Semiconductor laser and manufacturing process therefor | — | 2009-10-13 |
| 6526087 | Distributed feedback semiconductor laser | — | 2003-02-25 |
| 6259718 | Distributed feedback laser device high in coupling efficiency with optical fiber | — | 2001-07-10 |
| 6229836 | Semiconductor laser and a method of manufacturing therefor | — | 2001-05-08 |
| 5982798 | Semiconductor laser and process for production thereof | — | 1999-11-09 |
| 5802096 | Distributed feed back laser with a grating structure adjusted for a reduced intermodulation distortion in an analog amplitude modulation and method for fabricating the same | — | 1998-09-01 |
| 5568505 | Laser diode element with excellent intermodulation distortion characteristic | Hirohito Yamada, Toshitaka Torikai | 1996-10-22 |
| 5469459 | Laser diode element with excellent intermodulation distortion characteristic | Hirohito Yamada, Toshitaka Torikai | 1995-11-21 |
| 5450432 | Semiconductor distributed feedback laser emitting device improved in mutual modulation distortion | — | 1995-09-12 |
| 5394429 | Distributed-feedback laser with improved analog modulation distortion characteristics and method for fabricating the same | Hirohito Yamada, Toshitaka Torikai | 1995-02-28 |