KIYOTA; Kazuaki

Patent Applications and Registrations

Patent applications and USPTO patent grants for KIYOTA; Kazuaki.The latest application filed is for "semiconductor optical amplifier array device".

Company Profile

11.17.22

KIYOTA; Kazuaki - Tokyo JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Semiconductor Optical Amplifier Array Device App 20220149597 - KIYOTA; Kazuaki ; et al.	2022-05-12
Semiconductor laser array, semiconductor laser element, semiconductor laser module, and wavelength-variable laser assembly Grant 11,322,912 - Itoh , et al. May 3, 2	2022-05-03
Optical integrated element and optical module Grant 11,281,029 - Saito , et al. March 22, 2	2022-03-22
Optical Functional Device And Laser Device App 20210367401 - HIGA; Yasutaka ; et al.	2021-11-25
Wavelength-tunable laser device Grant 10,965,094 - Kawakita , et al. March 30, 2	2021-03-30
Semiconductor laser device, diffraction grating structure, and diffraction grating Grant 10,923,880 - Kiyota , et al. February 16, 2	2021-02-16
Optical Integrated Element And Optical Module App 20200363664 - SAITO; Yusuke ; et al.	2020-11-19
Wavelength-tunable Laser And Optical Module App 20200366059 - Kiyota; Kazuaki	2020-11-19
Laser module Grant 10,811,840 - Ariga , et al. October 20, 2	2020-10-20
Semiconductor laser device Grant 10,770,863 - Suzuki , et al. Sep	2020-09-08
Optical Module App 20200203917 - YAMAOKA; Kazuki ; et al.	2020-06-25
Semiconductor laser apparatus Grant 10,554,013 - Kurobe , et al. Fe	2020-02-04
Semiconductor optical integrated device having buried hetero structure waveguide and deep ridge waveguide Grant 10,534,131 - Kiyota , et al. Ja	2020-01-14
Wavelength-tunable Laser Device App 20190363505 - KAWAKITA; Yasumasa ; et al.	2019-11-28
Semiconductor Optical Integrated Device And Method Of Manufacturing The Same App 20190187369 - KIYOTA; Kazuaki ; et al.	2019-06-20
Optical semiconductor apparatus Grant 10,320,150 - Suzuki , et al.	2019-06-11
Semiconductor Laser Device App 20190165544 - SUZUKI; Toshihito ; et al.	2019-05-30
Semiconductor optical integrated device including a reduced thickness upper cladding layer in a ridge waveguide portion, and method of manufacturing the same Grant 10,241,267 - Kiyota , et al.	2019-03-26
Semiconductor Laser Device, Diffraction Grating Structure, And Diffraction Grating App 20180351328 - KIYOTA; Kazuaki ; et al.	2018-12-06
Laser Module App 20180342850 - ARIGA; Maiko ; et al.	2018-11-29
Semiconductor Optical Integrated Device And Method Of Manufacturing The Same App 20170146734 - Kiyota; Kazuaki ; et al.	2017-05-25
Semiconductor Laser Apparatus App 20170141532 - KUROBE; Tatsuro ; et al.	2017-05-18
Optical Semiconductor Apparatus App 20170141540 - SUZUKI; Toshihito ; et al.	2017-05-18
Integrated Semiconductor Laser Device And Semiconductor Laser Module App 20160336719 - KIYOTA; Kazuaki ; et al.	2016-11-17
Semiconductor Laser Array, Semiconductor Laser Element, Semiconductor Laser Module, And Wavelength-variable Laser Assembly App 20160301193 - ITOH; Akira ; et al.	2016-10-13
Semiconductor optical element, integrated semiconductor optical element, and semiconductor optical element module Grant 9,088,132 - Kiyota July 21, 2	2015-07-21
Optical amplifier device Grant 9,054,486 - Hasegawa , et al. June 9, 2	2015-06-09
Optical Amplifier Device App 20140078580 - HASEGAWA; Hideaki ; et al.	2014-03-20
Semiconductor laser module Grant 8,665,919 - Kimoto , et al. March 4, 2	2014-03-04
Semiconductor Optical Element, Integrated Semiconductor Optical Element, And Semiconductor Optical Element Module App 20140055842 - KIYOTA; Kazuaki	2014-02-27
Semiconductor Laser Module App 20110310916 - Kimoto; Tatsuya ; et al.	2011-12-22
Semiconductor Optical Device App 20110268402 - KIYOTA; Kazuaki	2011-11-03
Photonic crystal optical device Grant 7,831,124 - Kiyota , et al. November 9, 2	2010-11-09
Optical integrated device and method of manufacturing the same Grant 7,796,846 - Kiyota , et al. September 14, 2	2010-09-14
Two-dimensional photonic crystal surface-emitting laser Grant 7,664,158 - Kiyota February 16, 2	2010-02-16
Optical integrated device and method of manufacturing the same App 20090185774 - Kiyota; Kazuaki ; et al.	2009-07-23
Two-dimensional Photonic Crystal Surface-emitting Laser App 20090010298 - KIYOTA; Kazuaki	2009-01-08
Photonic Crystal Optical Device App 20080273832 - Kiyota; Kazuaki ; et al.	2008-11-06

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.