Inventor
Shigeki Watanabe
Inventor
Kawasaki, JP
Overview
Patents· 121 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Bprimary
H04BTransmission33%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein23%
H04JMultiplex communication15%
G01JMeasurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light4%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light4%
H04LTransmission of digital information, e.g. telegraphic communication3%
H04QSelecting2%
B62DMotor vehicles2%
G02BOptical elements, systems or apparatus2%
G01MTesting static or dynamic balance of machines or structures1%
PatentTitleYear
10,851,493Running wire rope and method of manufacturing same202010,720,992Transmission apparatus, reception apparatus, and method for estimating characteristics of transmission line202010,429,721Wavelength conversion device, control-light generation device, wavelength conversion method, and control-light generation method201910,291,328Optical signal-processing apparatus, receiving apparatus, and optical network system201910,281,798Wavelength conversion device, control-light generation device, wavelength conversion method, and control-light generation method201910,193,629Optical-signal processing apparatus, optical transmission method, receiver, and optical network system201910,193,621Location measurement apparatus, light modulation converter, and light variation location measurement method20199,929,828'Optical add/drop multiplexer and method for adding/dropping optical signal'20189,857,662'Optical frequency shift device and method'20189,780,880'Relay device and optical network system'20179,692,520'Optical signal-processing apparatus, receiving apparatus, and optical network system'20179,634,787'Optical add-drop multiplexer'20179,625,812'Photosensitive resin composition, photosensitive dry film, pattern formation method, printed circuit board, and method for producing same'20179,602,201'Optical multiplexing device and method of generating optical OFDM signal'20179,450,699'Optical drop device, optical drop method, and optical add device'20169,319,170'Optical frequency division multiplexer and polarization control method'20169,252,840'Optical signal processing apparatus, transmission apparatus, and optical signal processing method'20169,182,649'Optical-signal processing apparatus, optical transmission method, receiver, and optical network system'20159,148,228'Optical signal transmitting device, optical signal transmitting method, frequency fluctuation suppressing device and frequency fluctuation suppressing system'20159,104,903'Microscopy visualization'20159,106,359'Optical network system, optical multiplexing apparatus, and receiving apparatus'20159,106,354'Optical frequency-division multiplexer, optical communication system, and optical frequency-division multiplexing method'20159,088,383'Transmitting apparatus, receiving apparatus, optical frequency division multiplex transmission system, and optical signal communication method'20159,077,470'Optical transmission system using cross phase modulation'20159,020,339'Optical transmission system and control method'20158,983,296'Optical signal-processing apparatus, receiving apparatus, and optical network system'20158,970,946'Optical signal processing apparatus, optical receiving apparatus, and optical relay apparatus'20158,773,753'Optical amplifier and optical amplifying apparatus'20148,676,059'Optical signal processing apparatus and optical communication system'20148,647,807'Photosensitive resin composition, photosensitive dry film and method for forming pattern'20148,647,595'Method for separating radioactive copper using chelating-ion exchange resin'20148,647,806'Photosensitive resin composition, photosensitive dry film and method for forming pattern'20148,488,978'Optical signal processor'20138,428,470'Waveform shaping apparatus, optical transmission system, and waveform shaping method'20138,385,741'Optical pulse generating device and optical signal processing device'20138,351,110'Optical-signal processing apparatus'20138,311,410'Optical switch and optical waveform monitoring device utilizing optical switch'20128,301,416'Optical noise index calculation method, optical noise index calculation apparatus, and optical sampling oscilloscope'20128,275,264'Optical waveform controlling apparatus'20128,270,842'Optical signal processing device'20128,243,363'Optical signal processing apparatus, optical receiving apparatus, and optical relay apparatus'20128,195,053'Optical signal processing device'20128,190,032'Optical signal processing apparatus'20128,123,990'Method for producing fiber composite'20128,078,026'Device for canceling the wavelength dependence of the nonlinearity coefficient of microstructured fibers'20118,041,169'Optical signal processing device'20117,978,319'Optical switching method and optical switch'20117,953,322'Optical switch and optical switch control method'20117,940,454'Optical parametric amplifier'20117,877,017'Optical waveform measurement system and optical waveform measurement method'20117,853,145'Optical switch and optical waveform monitoring apparatus'20107,848,647'Optical switch and optical waveform monitoring device utilizing optical switch'20107,835,643'Optical waveform measuring apparatus and optical waveform measuring method'20107,810,828'Splash shield for automobile having vertical walls and shielding member therefor'20107,773,886'Optical regenerator in optical fiber communication system'20107,715,724'Optical synchronizer'20107,706,649'Optical processing device and optical processing method'20107,643,754'Method of and apparatus for providing multi-wavelength light source'20107,639,945'Optical switch device and optical switching method'20097,623,792'Clock extracting method and apparatus thereof'20097,587,140'Optical time-division demultiplexing apparatus'20097,561,811'Method, device, and system for regeneration and application of optical clock'20097,518,711'Optical waveform measurement apparatus and optical waveform measurement method'20097,450,298'Optical signal waveform shaping apparatus'20087,433,564'Optical device for optical communication'20087,428,349'Adaptive polarization adjustment apparatus for controlling polarization of light inputted to polarization-maintaining waveguide components'20087,397,975'Optical switch'20087,388,710'Optical parametric amplifier'20087,379,637'Method, optical device, and system for optical fiber transmission'20087,327,512'Optical waveform monitor apparatus and oscilloscope'20087,315,557'Multi-wavelength light source apparatus'20087,280,766'Method and device for processing an optical signal'20077,136,596'Optical pulse addition device'20067,088,491'Pulse generating apparatus and method'20067,076,174'Method, device, and system for processing optical signal'20067,072,549'Optical gate device, manufacturing method for the device, and system including the device'20067,043,099'Device and system for phase conjugate conversion and wavelength conversion'20067,039,324'Method, device, and system for regenerating optical signal'20067,011,359'Vehicle floor panel'20066,987,607'Optical AND gate and waveform shaping device'20066,963,675'Device and system for phase conjugate conversion and wavelength conversion'20056,963,436'Method and device for waveform shaping of signal light'20056,893,082'Suspension mounting structure'20056,870,974'Optical fiber communication system using optical phase conjugation as well as apparatus applicable to the system and method of producing the same'20056,859,307'Method and device for waveform shaping of signal light'20056,853,774'Method, device, and system for waveform shaping of signal light'20056,847,758'Method, optical device, and system for optical fiber transmission'20056,817,657'Vehicle body structure'20046,771,853'Optical fiber communication system using optical phase conjugation as well as apparatus applicable to the system and method of producing the same'20046,751,385'Method and device for measuring the waveform of an optical signal'20046,738,179'Method and device for shaping the waveform of an optical signal'20046,665,480'Optical gate device, manufacturing method for the device, and system including the device'20036,626,592'Optical communication system using optical phase conjugation to suppress waveform distortion caused by chromatic dispersion and optical Kerr effect'20036,608,854'Method, device, and system for waveform shaping of signal light'20036,504,972'Optical fiber communication system using optical phase conjugation as well as apparatus applicable to the system and method of producing the same'20036,477,300'Method, device, and system for waveform shaping of signal light'20026,453,082'Device and system for waveform shaping'20026,424,774'Tunable wavelength four light wave mixer'20026,424,773'Optical gate device, manufacturing method for the device, and system including the device'20026,341,026'Optical communication system using optical phase conjugation to suppress waveform distortion caused by chromatic dispersion and optical kerr effect'20026,307,984'Optical fiber communication system using optical phase conjugation as well as apparatus applicable to the system and method of producing the same'20016,304,348'Optical communication method and optical communication system based on optical phase conjugation'20016,262,828'Method and apparatus of driving an optical modulator to measure, and compensate for, dispersion in an optical transmission line'20016,175,435'Optical communication system using optical phase conjugation to suppress waveform distortion caused by chromatic dispersion and optical kerr effect'20016,160,942'Optical fiber communication system using optical phase conjugation'20005,982,530'Apparatus for driving an optical modulator to measure, and compensate for, dispersion in an optical transmission line'19995,973,816'Method and apparatus of driving an optical modulator to measure, and compensation for dispersion in an optical transmission line'19995,920,588'Method and device for generation of phase conjugate light and wavelength conversion, and system having the device'19995,896,211'Optical communication system'19995,798,853'Optical communication system compensating for chromatic dispersion and phase conjugate light generator for use therewith'19985,598,289'Optical systems making use of phenomenon of stimulated brillouin scattering'19975,596,667'Application of phase conjugate optics to optical systems'19975,515,192'Optical systems making use of phenomenon of stimulated brillouin scattering'19965,432,632'Optical communication system'19955,272,885'Air-conditioning apparatus having heat source unit and plural indoor units connected to the heat source unit'19935,253,097'Demodulator and a polarization diversity receiver for coherent optical communication provided with the demodulator'19935,228,043'Direct modulation phase shift keying (DM-PSK) transmission system'19935,115,332'Receiver for coherent optical communication'19925,052,051'Heterodyne receiver for coherent optical communication'19915,050,176'Direct modulation phase-shift-keying system and method'19914,965,858'Polarization diversity optical receiver for coherent optical communication'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–2020Patents assigned to FUJITSU LTD (109)· patent assignee history
1990–2020Based in Kawasaki, JP· patent location history
2004–2010Patents assigned to MITSUBISHI MOTORS CORP (4)· patent assignee history
2004–2005Based in Anjo, JP· patent location history
2011–2015Patents assigned to WATANABE SHIGEKI (22)· patent assignee history
2012–2014Patents assigned to FUTAMI FUMIO (3)· patent assignee history
2014–2017Patents assigned to MICRO PROCESS INC (3)· patent assignee history
2014Based in Koshigaya, JP· patent location history
2015Based in Salt Lake City, UT, US· patent location history
2017–2020Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJITSU LTD | 109 | 1990–2020 |
| WATANABE SHIGEKIself | 22 | 2011–2015 |
| MITSUBISHI MOTORS CORP | 4 | 2004–2010 |
| FUTAMI FUMIO | 3 | 2012–2014 |
| MICRO PROCESS INC | 3 | 2014–2017 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 109 | 1990–2020 |
| Tokyo, JP | 2 | 2017–2020 |
| Koshigaya, JP | 2 | 2014 |
| Anjo, JP | 2 | 2004–2005 |
| Salt Lake City, UT, US | 1 | 2015 |