Kawahara; Takahiko
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kawahara; Takahiko.The latest application filed is for "infrared-ray sensing device".
- Kawahara; Takahiko - Fujisawa JP
- Kawahara; Takahiko - Fugisawa-shi JP
- Kawahara; Takahiko - Yokohama JP
- Kawahara; Takahiko - Hadano JP
- Kawahara; Takahiko - Yokohama-shi JP
- Kawahara; Takahiko - Hadano-shi JP
- Kawahara; Takahiko - Shiga JP
- Kawahara; Takahiko - Yokaichi JP
| Patent | Date |
|---|---|
| Infrared-ray sensing device Grant 9,899,549 - Machinaga , et al. February 20, 2 | 2018-02-20 |
| Infrared-ray Sensing Device App 20170358696 - MACHINAGA; Kenichi ; et al. | 2017-12-14 |
| Laser diode Grant 8,340,147 - Kaida , et al. December 25, 2 | 2012-12-25 |
| PFO closing device Grant 8,182,481 - Kato , et al. May 22, 2 | 2012-05-22 |
| Laser Diode App 20110090928 - KAIDA; Noriaki ; et al. | 2011-04-21 |
| Semiconductor laser and the method for manufacturing the same Grant 7,723,132 - Kawahara , et al. May 25, 2 | 2010-05-25 |
| Distributed feedback laser diode and a method for manufacturing the same Grant 7,627,011 - Kawahara December 1, 2 | 2009-12-01 |
| Pfo Closing Device App 20090076525 - Kato; Yukitoshi ; et al. | 2009-03-19 |
| Semiconductor laser and the method for manufacturing the same App 20080299692 - Kawahara; Takahiko ; et al. | 2008-12-04 |
| Semiconductor laser and the method for manufacturing the same Grant 7,460,575 - Kawahara , et al. December 2, 2 | 2008-12-02 |
| Semiconductor laser diode with emission efficiency independent of thickness of p-type cladding layer Grant 7,408,965 - Kawahara , et al. August 5, 2 | 2008-08-05 |
| Semiconductor laser diode with emission efficiency independent of thickness of p-type cladding layer App 20070258498 - Kawahara; Takahiko ; et al. | 2007-11-08 |
| Distributed feedback laser diode and a method for manufacturing the same App 20070160105 - Kawahara; Takahiko | 2007-07-12 |
| Semiconductor light-emitting device App 20060243992 - Ikoma; Nobuyuki ; et al. | 2006-11-02 |
| Semiconductor optical device and method of making the same Grant 7,123,639 - Kawahara October 17, 2 | 2006-10-17 |
| Semiconductor laser and the method for manufacturing the same App 20060159145 - Kawahara; Takahiko ; et al. | 2006-07-20 |
| Distributed feedback laser including AlGaInAs in feedback grating layer App 20060146902 - Ikoma; Nobuyuki ; et al. | 2006-07-06 |
| Semiconductor light-emitting device App 20050189552 - Ikoma, Nobuyuki ; et al. | 2005-09-01 |
| Semiconductor optical device and method of making the same App 20050013335 - Kawahara, Takahiko | 2005-01-20 |
| Semiconductor optical device, semiconductor laser device, semiconductor optical modulation device, and semiconductor optical integrated device App 20040086015 - Kawahara, Takahiko ; et al. | 2004-05-06 |
| Method of producing thermistor chips Grant 6,311,390 - Abe , et al. November 6, 2 | 2001-11-06 |
| Semiconductive ceramic Grant 5,733,833 - Abe , et al. March 31, 1 | 1998-03-31 |
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