| Patent | Date |
|---|
Coherent sampling
Grant 10,944,481 - Sakamoto March 9, 2 | 2021-03-09 |
High-speed photodetector array
Grant 10,911,153 - Umezawa , et al. February 2, 2 | 2021-02-02 |
Coherent Sampling
App 20200322060 - SAKAMOTO; Takahide | 2020-10-08 |
High-speed Photodetector Array
App 20200044745 - UMEZAWA; Toshimasa ; et al. | 2020-02-06 |
Interval control-type optical comb
Grant 10,514,587 - Sakamoto , et al. Dec | 2019-12-24 |
Interval Control-Type Optical Comb
App 20190250484 - SAKAMOTO; Takahide ; et al. | 2019-08-15 |
Collective acquisition-type photodetection device and photodetection method having a time delay adjustment unit wherein each time-adjusted optical signal train is photomixed with an optical frequency comb at different timings in a photomixer
Grant 10,090,918 - Sakamoto October 2, 2 | 2018-10-02 |
Optical up/down conversion-type optical phase conjugate pair signal transmission/reception circuit
Grant 9,954,615 - Sakamoto April 24, 2 | 2018-04-24 |
Optical Up/down Conversion-type Optical Phase Conjugate Pair Signal Transmission/reception Circuit
App 20170264366 - SAKAMOTO; Takahide | 2017-09-14 |
Collective Acquisition-type Photodetection Device And Photodetection Method
App 20170141844 - SAKAMOTO; Takahide | 2017-05-18 |
Super high speed optical frequency sweeping technology
Grant 8,682,177 - Kawanishi , et al. March 25, 2 | 2014-03-25 |
Quadrature amplitude modulation signal generating device
Grant 8,676,060 - Kawanishi , et al. March 18, 2 | 2014-03-18 |
High-speed multiplied signal generating method and device
Grant 8,472,107 - Kawanishi , et al. June 25, 2 | 2013-06-25 |
Optical switch system using optical interference
Grant 8,270,780 - Kawanishi , et al. September 18, 2 | 2012-09-18 |
High-Speed Multiplied Signal Generating Method And Device
App 20110242644 - KAWANISHI; Tetsuya ; et al. | 2011-10-06 |
Super flat optical frequency comb signal generator
Grant 8,023,775 - Sakamoto , et al. September 20, 2 | 2011-09-20 |
DSB-SC modulation system capable of erasing carrier and secondary component
Grant 7,991,298 - Kawanishi , et al. August 2, 2 | 2011-08-02 |
High-speed multiplied signal generating method and device
Grant 7,986,452 - Kawanishi , et al. July 26, 2 | 2011-07-26 |
Optical FSK/SSB modulator having intensity balance function
Grant 7,957,652 - Kawanishi , et al. June 7, 2 | 2011-06-07 |
Phase control optical FSK modulator
Grant 7,957,653 - Kawanishi , et al. June 7, 2 | 2011-06-07 |
Automatic adjusting system of frequency shift keying modulator
Grant 7,936,996 - Kawanishi , et al. May 3, 2 | 2011-05-03 |
Super Flat Optical Frequency Comb Signal Generator
App 20110097029 - Sakamoto; Takahide ; et al. | 2011-04-28 |
Method and device for calibrating a light intensity measurement device
Grant 7,864,330 - Kawanishi , et al. January 4, 2 | 2011-01-04 |
Fourth harmonic generating system using optical double side-band suppressed carrier modulator
Grant 7,853,153 - Kawanishi , et al. December 14, 2 | 2010-12-14 |
Quadrature Amplitude Modulation Signal Generating Device
App 20100202785 - Kawanishi; Tetsuya ; et al. | 2010-08-12 |
Optical Switch System Using Optical Interference
App 20100150495 - Kawanishi; Tetsuya ; et al. | 2010-06-17 |
Optical amplitude modulation system capable of cancelling high order component
Grant 7,711,215 - Kawanishi , et al. May 4, 2 | 2010-05-04 |
High-Speed Multiplied Signal Generating Method And Device
App 20100053732 - Kawanishi; Tetsuya ; et al. | 2010-03-04 |
Reciprocating optical modulation system
Grant 7,660,030 - Kawanishi , et al. February 9, 2 | 2010-02-09 |
Phase Control Optical Fsk Modulator
App 20100014874 - Kawanishi; Tetsuya ; et al. | 2010-01-21 |
Super Flat Optical Frequency Com Signal Generator
App 20090310900 - Sakamoto; Takahide ; et al. | 2009-12-17 |
Super High Speed Optical Frequency Sweeping Technology
App 20090304393 - Kawanishi; Tetsuya ; et al. | 2009-12-10 |
Method And Device For Calibrating A Light Intensity Measurement Device
App 20090290148 - Kawanishi; Tetsuya ; et al. | 2009-11-26 |
Optical Fsk/ssb Modulator Having Intensity Balance Function
App 20090279825 - Kawanishi; Tetsuya ; et al. | 2009-11-12 |
Optical Amplitude Modulation System Capable Of Cancelling High Order Component
App 20090238510 - Kawanishi; Tetsuya ; et al. | 2009-09-24 |
Dsb-sc Modulation System Capable Of Erasing Carrier And Secondary Component
App 20090232440 - Kawanishi; Tetsuya ; et al. | 2009-09-17 |
Fourth Harmonic Generating System Using Optical Double Side-band Suppressed Carrier Modulator
App 20090103924 - Kawanishi; Tetsuya ; et al. | 2009-04-23 |
Reciprocating Optical Modulation System
App 20090103163 - Kawanishi; Tetsuya ; et al. | 2009-04-23 |
Automatic Adjusting System Of Frequency Shift Keying Modulator
App 20090041472 - Kawanishi; Tetsuya ; et al. | 2009-02-12 |
Photoelectric oscillator
Grant 7,425,696 - Kawanishi , et al. September 16, 2 | 2008-09-16 |
Photoelectric oscillator
App 20050211875 - Kawanishi, Tetsuya ; et al. | 2005-09-29 |
Zirconium liner thickness measuring method and an apparatus therefor for a zirconium alloy tube
Grant 4,673,877 - Sakamoto , et al. June 16, 1 | 1987-06-16 |
Rotary probe apparatus for detecting flaws in a test object
Grant 4,641,092 - Sakamoto , et al. February 3, 1 | 1987-02-03 |
Steel surface inspection apparatus
Grant 4,336,923 - Shiraiwa , et al. June 29, 1 | 1982-06-29 |
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