Kikugawa; Tomoyuki

Patent Applications and Registrations

Patent applications and USPTO patent grants for Kikugawa; Tomoyuki.The latest application filed is for "semiconductor laser capable of coupling with single mode optical fiber at high coupling efficiency".

Company Profile

0.7.6

Kikugawa; Tomoyuki - Atsugi JP
Kikugawa; Tomoyuki - Atsugi-shi JP
Kikugawa; Tomoyuki - Kanagawa JP
Kikugawa; Tomoyuki - Tokyo JP
Kikugawa; Tomoyuki - Yokohama 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 laser capable of coupling with single mode optical fiber at high coupling efficiency Grant 7,483,470 - Nagashima , et al. January 27, 2	2009-01-27
Semiconductor laser capable of coupling with single mode optical fiber at high coupling efficiency App 20060285560 - Nagashima; Yasuaki ; et al.	2006-12-21
Variable-wavelength semiconductor laser and gas sensor using same App 20060187976 - Mori; Hiroshi ; et al.	2006-08-24
Optical semiconductor device and its manufacturing method App 20060166386 - Yamada; Atsushi ; et al.	2006-07-27
Distributed feedback semiconductor laser for outputting beam of single wavelength Grant 7,065,123 - Mori , et al. June 20, 2	2006-06-20
Semiconductor light emitting device in which high-power light output can be obtained with a simple structure including InGaAsP active layer not less than 3.5 microns and InGaAsP and InP cladding Grant 6,987,285 - Nagashima , et al. January 17, 2	2006-01-17
Semiconductor light emitting device in which high-power light output can be obtained with a simple structure App 20040089866 - Nagashima, Yasuaki ; et al.	2004-05-13
Semiconductor laser attaining high efficiency and high power, and method of manufacturing the same Grant 6,697,407 - Nagashima , et al. February 24, 2	2004-02-24
Distributed feedback semiconductor laser for outputting beam of single wavelength App 20040001522 - Mori, Hiroshi ; et al.	2004-01-01
Isopotomer absorption spectral analyzer and its method Grant 6,611,333 - Uehara , et al. August 26, 2	2003-08-26
Semiconductor laser attaining high efficiency and high power, and method of manufacturing the same App 20020118717 - Nagashima, Yasuaki ; et al.	2002-08-29
Semiconductor laser having effective output increasing function Grant 6,351,479 - Mori , et al. February 26, 2	2002-02-26
Apparatus for measuring spectral power of a light beam Grant 4,758,086 - Sonobe , et al. July 19, 1	1988-07-19

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