NARA; Kazutaka

Patent Applications and Registrations

Patent applications and USPTO patent grants for NARA; Kazutaka.The latest application filed is for "medical device, extracorporeal unit, power transmission sheet, and medical instrument".

Company Profile

3.64.89

NARA; Kazutaka - Tokyo JP
NARA; Kazutaka - Chiba JP
Nara; Kazutaka - Chiyoda-ku 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
Medical Device, Extracorporeal Unit, Power Transmission Sheet, And Medical Instrument App 20220305247 - SUEMATSU; Katsuki ; et al.	2022-09-29
Pulse Application Method And Pulse Application Device App 20220249865 - OGAWA; Emiyu ; et al.	2022-08-11
Support Information Generating Device, Support Information Generating System, Support Information Generating Method, And Computer Readable Recording Medium App 20220084309 - NARA; Kazutaka ; et al.	2022-03-17
Medical Device, External Unit, Power Transmission Sheet, Medical Tool, And Position Detection Method App 20220040404 - SUEMATSU; Katsuki ; et al.	2022-02-10
Optical waveguide element Grant 11,125,942 - Uchida , et al. September 21, 2	2021-09-21
Optical Waveguide Element App 20190317279 - UCHIDA; Yasuyoshi ; et al.	2019-10-17
Optical waveguide circuit having identical polarization-cancelling S-shaped curves Grant 10,386,576 - Nara , et al. A	2019-08-20
Optical waveguide element Grant 10,371,890 - Uchida , et al.	2019-08-06
Switch device Grant 9,638,865 - Hasegawa , et al. May 2, 2	2017-05-02
Switch apparatus Grant 9,488,783 - Hasegawa , et al. November 8, 2	2016-11-08
Optical Waveguide Element App 20160246001 - UCHIDA; Yasuyoshi ; et al.	2016-08-25
Spot-size conversion optical waveguide Grant 9,417,388 - Yamasaki , et al. August 16, 2	2016-08-16
Switch Device App 20160216451 - HASEGAWA; Junichi ; et al.	2016-07-28
Optical waveguide element and method of producing the same Grant 9,354,395 - Uchida , et al. May 31, 2	2016-05-31
Spot-size Conversion Optical Waveguide App 20160085026 - Yamasaki; Shintaro ; et al.	2016-03-24
Switch Apparatus App 20160025930 - HASEGAWA; Junichi ; et al.	2016-01-28
Switch Device App 20150172794 - HASEGAWA; Junichi ; et al.	2015-06-18
Optical amplifier device Grant 9,054,486 - Hasegawa , et al. June 9, 2	2015-06-09
SOA-PLC hybrid integrated polarization diversity circuit and method for manufacturing the same Grant 8,837,869 - Akutsu , et al. September 16, 2	2014-09-16
Optical Waveguide Element And Method Of Producing The Same App 20140241683 - UCHIDA; Yasuyoshi ; et al.	2014-08-28
Optical branching element and optical branching circuit Grant 8,718,423 - Nara , et al. May 6, 2	2014-05-06
Optical Amplifier Device App 20140078580 - HASEGAWA; Hideaki ; et al.	2014-03-20
Wide-band Optical Coupler App 20130330041 - NARA; Kazutaka	2013-12-12
Optical Branching Element And Optical Branching Circuit App 20130330042 - NARA; Kazutaka ; et al.	2013-12-12
SSC chip, fiber array attached with SSC, PLC module attached with SSC and method for manufacturing SSC Grant 8,538,213 - Uchida , et al. September 17, 2	2013-09-17
Optical Waveguide Circuit App 20130236136 - NARA; Kazutaka ; et al.	2013-09-12
PLC-type demodulator and optical transmission system Grant 8,526,102 - Inoue , et al. September 3, 2	2013-09-03
Demodulating Delay Circuit And Optical Receiver App 20130209111 - Kawashima; Hiroshi ; et al.	2013-08-15
Plc-type Delay Demodulation Circuit App 20130208348 - Kawashima; Hiroshi ; et al.	2013-08-15
Hybrid integrated optical module Grant 8,503,843 - Akutsu , et al. August 6, 2	2013-08-06
PLC-type delay demodulation circuit and PLC-type optical interferometer Grant 8,477,409 - Kawashima , et al. July 2, 2	2013-07-02
Arrayed Waveguide Grating Multiplexer-demultiplexer App 20130142483 - Hasegawa; Junichi ; et al.	2013-06-06
Arrayed-waveguide-grating-type optical multiplexer/demultiplexer Grant 8,457,459 - Hasegawa , et al. June 4, 2	2013-06-04
Polarization Separation Element And Optical Integrated Element App 20130129273 - Nara; Kazutaka ; et al.	2013-05-23
Soa-plc Hybrid Integrated Polarization Diversity Circuit And Method For Manufacturing The Same App 20130121632 - AKUTSU; Takeshi ; et al.	2013-05-16
PLC-type delay demodulation circuit Grant 8,441,717 - Kawashima , et al. May 14, 2	2013-05-14
Arrayed Waveguide Grating App 20130114929 - NARA; Kazutaka	2013-05-09
PLC-type delay demodulation circuit Grant 8,422,118 - Kawashima , et al. April 16, 2	2013-04-16
90-degree hybrid Grant 8,401,351 - Inoue , et al. March 19, 2	2013-03-19
Waveguide-type optical circuit Grant 8,380,023 - Matsubara , et al. February 19, 2	2013-02-19
Plc-type Delay Demodulation Circuit And Plc-type Optical Interferometer App 20130010350 - KAWASHIMA; Hiroshi ; et al.	2013-01-10
Optical Waveguide Circuit App 20120251046 - Kawashima; Hiroshi ; et al.	2012-10-04
Mach-zehnder Interferometer-arrayed Waveguide Grating And Planar Light-wave Circuit Chip App 20120251047 - NARA; Kazutaka	2012-10-04
90-degree Hybrid App 20120224812 - INOUE; Takashi ; et al.	2012-09-06
Plc-type Demodulator And Optical Transmission System App 20120207474 - INOUE; Takashi ; et al.	2012-08-16
Arrayed Waveguide Grating Type Optical Multiplexer And Demultiplexer App 20120195553 - HASEGAWA; Junichi ; et al.	2012-08-02
Arrayed Waveguide Grating Type Optical Multiplexer And Demultiplexer App 20120195552 - Hasegawa; Junichi ; et al.	2012-08-02
Plc-type Delay Demodulation Circuit App 20120162746 - KAWASHIMA; Hiroshi ; et al.	2012-06-28
Plc-type Delay Demodulation Circuit App 20120154901 - KAWASHIMA; Hiroshi ; et al.	2012-06-21
Waveguide-type Optical Circuit App 20120014636 - Matsubara; Noritaka ; et al.	2012-01-19
Wavelength Multiplexer/demultiplexer And Method Of Manufacturing The Same App 20120002918 - KAWASHIMA; Hiroshi ; et al.	2012-01-05
Semiconductor Laser Module App 20110305253 - KOBAYASHI; Go ; et al.	2011-12-15
Tunable dispersion compensator Grant 8,068,736 - Kawashima , et al. November 29, 2	2011-11-29
Athermal AWG module Grant 8,036,505 - Hasegawa , et al. October 11, 2	2011-10-11
Broadband wavelength multiplexing and demultiplexing filter and optical splitter with optical signal multiplexing and demultiplexing function Grant 8,023,781 - Nara , et al. September 20, 2	2011-09-20
Delay demodulation devices Grant 7,978,401 - Hasegawa , et al. July 12, 2	2011-07-12
Delay demodulation devices Grant 7,961,991 - Hasegawa , et al. June 14, 2	2011-06-14
Arrayed Waveguide Grating App 20110123153 - NARA; Kazutaka	2011-05-26
Hybrid Integrated Optical Module App 20110110622 - AKUTSU; Takeshi ; et al.	2011-05-12
Broadband Wavelength Multiplexing And Demultiplexing Filter And Optical Splitter With Optical Signal Multiplexing And Demultiplexing Function App 20110097035 - NARA; Kazutaka ; et al.	2011-04-28
Arrayed Waveguide Grating And Method Of Manufacturing Arrayed Waveguide Grating App 20110085761 - NARA; Kazutaka ; et al.	2011-04-14
Broadband wavelength multiplexing and demultiplexing filter and optical splitter with optical signal multiplexing and demultiplexing function Grant 7,885,493 - Nara , et al. February 8, 2	2011-02-08
Delay-line demodulator Grant 7,884,996 - Hasegawa , et al. February 8, 2	2011-02-08
Arrayed-waveguide-grating-type Optical Multiplexer/demultiplexer App 20110008002 - HASEGAWA; Junichi ; et al.	2011-01-13
Arrayed Waveguide Grating App 20100303410 - Nara; Kazutaka ; et al.	2010-12-02
Athermal Awg Module App 20100278483 - HASEGAWA; Junichi ; et al.	2010-11-04
Methods to control phase shifts of delay demodulation devices Grant 7,813,032 - Hasegawa , et al. October 12, 2	2010-10-12
Ssc Chip, Fiber Array Attached With Ssc, Plc Module Attached With Ssc And Method For Manufacturing Ssc App 20100142900 - Uchida; Yasuyoshi ; et al.	2010-06-10
Optical Integrated Circuit And Optical Integrated Circuit Module App 20100111468 - FUNABASHI; Masaki ; et al.	2010-05-06
Delay-line Demodulator App 20100073760 - Hasegawa; Junichi ; et al.	2010-03-25
Methods To Control Phase Shifts Of Delay Demodulation Devices App 20100067098 - HASEGAWA; Junichi ; et al.	2010-03-18
Delay Demodulation Devices App 20100053731 - HASEGAWA; Junichi ; et al.	2010-03-04
Delay Demodulation Devices App 20100046064 - Hasegawa; Junichi ; et al.	2010-02-25
Delay-line demodulator Grant 7,649,678 - Hasegawa , et al. January 19, 2	2010-01-19
Optical integrated circuit and optical integrated circuit module Grant 7,561,765 - Funabashi , et al. July 14, 2	2009-07-14
Arrayed waveguide grating optical multiplexer/demultiplexer Grant 7,555,175 - Nara June 30, 2	2009-06-30
Arrayed waveguide grating optical multiplexer/demultiplexer Grant 7,542,640 - Nara June 2, 2	2009-06-02
Arrayed waveguide grating Grant 7,539,368 - Hasegawa , et al. May 26, 2	2009-05-26
Broadband Wavelength Multiplexing And Demultiplexing Filter And Optical Splitter With Optical Signal Multiplexing And Demultiplexing Function App 20090110393 - NARA; Kazutaka ; et al.	2009-04-30
Delay-line Demodulator App 20090097101 - Hasegawa; Junichi ; et al.	2009-04-16
Optical circuit device Grant 7,492,983 - Matsubara , et al. February 17, 2	2009-02-17
Delay-line demodulator and method of adjusting a phase shift in the demodulator Grant 7,480,091 - Hasegawa , et al. January 20, 2	2009-01-20
Broadband wavelength multiplexing and demultiplexing filter and optical splitter with optical signal multiplexing and demultiplexing function Grant 7,469,079 - Nara , et al. December 23, 2	2008-12-23
Arrayed Waveguide Grating Optical Multiplexer/demultiplexer App 20080253716 - Nara; Kazutaka	2008-10-16
Delay-line Demodulator And Method Of Adjusting A Phase Shift In The Demodulator App 20080239465 - Hasegawa; Junichi ; et al.	2008-10-02
Optical Integrated Circuit And Optical Integrated Circuit Module App 20080240645 - FUNABASHI; Masaki ; et al.	2008-10-02
Tunable Dispersion Compensator App 20080240727 - Kawashima; Hiroshi ; et al.	2008-10-02
Arrayed Waveguide Grating App 20080199130 - Hasegawa; Junichi ; et al.	2008-08-21
Arrayed Waveguide Grating Optical Multiplexer/demultiplexer App 20080131053 - NARA; Kazutaka	2008-06-05
Optical Circuit Device App 20080031566 - Matsubara; Noritaka ; et al.	2008-02-07
Planar optical waveguide circuit type variable attenuator Grant 7,233,714 - Kawashima , et al. June 19, 2	2007-06-19
Broadband wavelength multiplexing and demultiplexing filter and optical splitter with optical signal multiplexing and demultiplexing function App 20070104409 - Nara; Kazutaka ; et al.	2007-05-10
Dynamic gain equalizer Grant 7,146,079 - Nara , et al. December 5, 2	2006-12-05
Dispersion compensator, method for manufacturing the same, and method for compensating wavelength dispersion Grant 7,133,587 - Nara , et al. November 7, 2	2006-11-07
Planar optical waveguide circuit type variable attenuator App 20060204201 - Kawashima; Hiroshi ; et al.	2006-09-14
Dispersion compensator, method for manufacturing the same, and method for compensating wavelength dispersion App 20060193558 - Nara; Kazutaka ; et al.	2006-08-31
Dispersion compensator, method for manufacturing the same, and method for compensating wavelength dispersion Grant 7,072,545 - Nara , et al. July 4, 2	2006-07-04
Dynamic gain equalizer App 20060039704 - Nara; Kazutaka ; et al.	2006-02-23
Arrayed waveguide grating type optical multiplexer/demultiplexer Grant 6,920,265 - Kashihara , et al. July 19, 2	2005-07-19
Optical circuit, method for manufacturing optical circuit, optical circuit device and method for controlling optical circuit device Grant 6,870,979 - Kawashima , et al. March 22, 2	2005-03-22
Optical circuit, method for manufacturing optical circuit, optical circuit device and method for controlling optical circuit device App 20040264836 - Kawashima, Hiroshi ; et al.	2004-12-30
Arrayed waveguide grating type optical multiplexer/demultiplexer and optical waveguide circuit Grant 6,836,591 - Kashihara , et al. December 28, 2	2004-12-28
Optical waveguide circuit device Grant 6,829,418 - Kashihara , et al. December 7, 2	2004-12-07
Arrayed waveguide grating optical multiplexer/demultiplexer and method for manufacturing the same Grant 6,816,651 - Kashihara , et al. November 9, 2	2004-11-09
Arrayed waveguide grating and method for manufacturing the same Grant 6,768,840 - Nara , et al. July 27, 2	2004-07-27
Arrayed waveguide grating optical multiplexer/demultiplexer and method for manufacturing the same Grant 6,768,832 - Nakajima , et al. July 27, 2	2004-07-27
Method for manufacturing a planar lightwave circuit, and planar waveguide circuit Grant 6,763,164 - Kashihara , et al. July 13, 2	2004-07-13
Arrayed waveguide grating optical multiplexer/demultiplexer and method for manufacturing the same App 20040120645 - Kashihara, Kazuhisa ; et al.	2004-06-24
Arrayed waveguide grating optical multiplexer/demultiplexer and method for manufacturing the same Grant 6,735,364 - Kashihara , et al. May 11, 2	2004-05-11
Arrayed waveguide grating type optical multiplexer/demultiplexer and optical waveguide circuit Grant 6,728,435 - Kashihara , et al. April 27, 2	2004-04-27
Dispersion compensator, method for manufacturing the same, and method for compensating wavelength dispersion App 20040028367 - Nara, Kazutaka ; et al.	2004-02-12
Arrayed waveguide grating type optical multiplexer/demultiplexer Grant 6,671,433 - Kashihara , et al. December 30, 2	2003-12-30
Arrayed waveguide grating type optical multiplexer/demultiplexer Grant 6,668,116 - Kashihara , et al. December 23, 2	2003-12-23
Planar lightwave circuit platform and method for manufacturing the same Grant 6,631,235 - Kawashima , et al. October 7, 2	2003-10-07
Arrayed waveguide grating Grant 6,563,986 - Kashihara , et al. May 13, 2	2003-05-13
Arrayed waveguide grating type optical multiplexer/demultiplexer App 20030086650 - Kashihara, Kazuhisa ; et al.	2003-05-08
Optical waveguide circuit Grant 6,539,158 - Kashihara , et al. March 25, 2	2003-03-25
Planar lightwave circuit and method for compensating center wavelength of optical transmission of planar lightwave circuit App 20030048989 - Kashihara, Kazuhisa ; et al.	2003-03-13
Optical hybrid module, optical device thereof and semifabricated product for the optical device App 20030039043 - Nekado, Yoshinobu ; et al.	2003-02-27
Arrayed waveguide grating optical multiplexer/demultiplexer and method for manufacturing the same App 20030039441 - Kashihara, Kazuhisa ; et al.	2003-02-27
Arrayed waveguide grating type optical multiplexer/demultiplexer and optical waveguide circuit App 20030035622 - Kashihara, Kazuhisa ; et al.	2003-02-20
Optical waveguide App 20030016928 - Nara, Kazutaka ; et al.	2003-01-23
Arrayed waveguide grating optical multiplexer/demultiplexer and method for manufacturing the same App 20030012501 - Nakajima, Takeshi ; et al.	2003-01-16
Optical wavelength multiplexer/demultiplexer App 20020181857 - Komatsu, Takuya ; et al.	2002-12-05
Arrayed waveguide grating type optical multiplexer/demultiplexer and optical waveguide circuit App 20020164116 - Kashihara, Kazuhisa ; et al.	2002-11-07
Arrayed waveguide grating optical multiplexer/demultiplexer App 20020154861 - Nara, Kazutaka ; et al.	2002-10-24
Arrayed waveguide grating and method for manufacturing the same App 20020136492 - Nara, Kazutaka ; et al.	2002-09-26
Arrayed waveguide grating type optical multiplexer/demultiplexer and a method of manufacturing the same Grant 6,456,763 - Kashihara , et al. September 24, 2	2002-09-24
Arrayed waveguide grating type optical multiplexer/demultiplexer App 20020122627 - Kashihara, Kazuhisa ; et al.	2002-09-05
Arrayed waveguide grating App 20020085808 - Ooyama, Isao ; et al.	2002-07-04
Optical waveguide circuit module App 20020064346 - Kashihara, Kazuhisa ; et al.	2002-05-30
Optical waveguide circuit device App 20020034361 - Kashihara, Kazuhisa ; et al.	2002-03-21
Manufacturing method of optical waveguide App 20020028300 - Komatsu, Takuya ; et al.	2002-03-07
Arrayed waveguide grating type optical multiplexer/demultiplexer App 20020025116 - Kashihara, Kazuhisa ; et al.	2002-02-28
Optical waveguide circuit App 20020025133 - Nara, Kazutaka ; et al.	2002-02-28
Optical waveguide and method of manufacturing the same App 20020018622 - Nara, Kazutaka ; et al.	2002-02-14
Arrayed waveguide grating type optical multiplexer/demultiplexer and optical waveguide circuit App 20020015559 - Kashihara, Kazuhisa ; et al.	2002-02-07
Arrayed waveguide grating App 20020009263 - Kashihara, Kazuhisa ; et al.	2002-01-24
Manufacturing method of metallic film to planar lightwave circuit and planar lightwave circuit and planar lightwave circuit having metallic film manufactured by using this method App 20010055444 - Kashihara, Kazuhisa ; et al.	2001-12-27
Optical waveguide circuit App 20010046361 - Kashihara, Kazuhisa ; et al.	2001-11-29
Dispersion compensator and dispersion-compensating module employing the same App 20010028762 - Kashihara, Kazuhisa ; et al.	2001-10-11
Arrayed waveguide grating App 20010019644 - Nara, Kazutaka ; et al.	2001-09-06
Arrayed waveguide grating type optical multiplexer/demultiplexer and a method of manufacturing the same App 20010006570 - Kashihara, Kazuhisa ; et al.	2001-07-05