Inventor
Norifumi Shukunami
Inventor
Sapporo, JP
Overview
Patents· 50 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Sprimary
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light35%
H04BTransmission35%
H04JMultiplex communication17%
G02BOptical elements, systems or apparatus4%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein3%
G01MTesting static or dynamic balance of machines or structures2%
H04QSelecting2%
C03BManufacture, shaping, or supplementary processes1%
PatentTitleYear
11,018,762Transmission device, transmission system, and transmission method202110,634,974Wavelength converter, wavelength conversion method, and transmission device202010,608,775Optical transmission apparatus, optical transmission method, and optical transmission system20209,742,500'Optical transmission apparatus and optical signal processing method'20179,699,531'Switchable optical amplifier and optical transmission apparatus'20179,531,496'Optical transmission device and optical transmission method'20169,520,694'Optical amplifier with loss adjustment unit based on gain'20169,444,572'Transmission device and transmission method'20169,438,343'Transmitting device, communication system, and method for transmission level control'20169,300,426'Transmission apparatus, transmission system, and method of controlling average optical input power'20169,166,679'Optical amplification apparatus, method for controlling same, optical receiver station, and optical transmission system'20159,093,816'Transmission apparatus and transmission system'20159,065,570'Optical amplifier with feedback to obtain set gain and gain tilt'20159,031,418'Communication system, measuring apparatus, transmitting apparatus, and measurement method'20158,983,298'Optical channel monitor'20158,971,700'Bidirectional monitor module, optical module, optical add-drop multiplexer, and optical system'20158,947,767'Excitation light source for raman amplification, raman amplifier, and optical transmission system'20158,861,965'Optical transmission apparatus'20148,687,982'OSNR measuring device and optical communication system'20148,655,170'OSNR monitor device and OSNR measurement device'20148,547,629'Gain and signal level adjustments of cascaded optical amplifiers'20138,538,264'Dispersion compensating apparatus, dispersion compensating method, optical receiving apparatus, and optical receiving method'20138,134,775'Raman amplifier with signal modulated before stimulated brillouin scattering occurs'20128,068,275'Method for measuring nonlinear optical properties'20117,969,648'Gain and signal level adjustments of cascaded optical amplifiers'20117,929,201'Multistage optical amplifier with gain control using pump ratio'20117,924,499'Gain and signal level adjustments of cascaded optical amplifiers'20117,899,296'Optical fiber reel'20117,692,849'Method for measuring nonlinear optical properties, and optical amplifier and optical transmission system using same'20107,417,791'Optical amplifier for amplifying multi-wavelength light'20087,400,444'Optical amplifier and control method for optical amplifier'20087,296,940'Optical fiber connecting portion structure and light monitor apparatus'20077,209,284'Optical amplifier using reflection-type variable optical attenuator for feedback'20077,061,666'Gain and signal level adjustments of cascaded optical amplifiers'20066,903,324'Optical amplifier amplifying wavelength multiplexed light, and wavelength multiplexed light communications system'20056,891,662'Optical amplifier and method for amplifying wavelength multiplexed transmission signal light'20056,856,455'Light source apparatus, optical amplifier and optical communication system'20056,747,790'Optical amplifier for amplifying multi-wavelength light'20046,738,182'Optical fiber amplifier'20046,603,596'Gain and signal level adjustments of cascaded optical amplifiers'20036,529,314'Method and apparatus using four wave mixing for optical wavelength conversion'20036,452,720'Light source apparatus, optical amplifier and optical communication system'20026,310,717'Optical amplifier and fiber module for optical amplification'20016,134,046'Optical amplifying fiber and forming method for fiber grating'20006,061,173'Wavelength-division-multiplexing optical amplifier'20005,970,198'Optically amplifying fiber and optical fiber amplifier'19995,861,973'Optical amplifier for collectively amplifying optical signals having a plurality of multiplexed wavelengths'19995,778,129'Doped optical fiber having core and clad structure for increasing the amplification band of an optical amplifier using the optical fiber'19985,764,404'Wavelength-division-multiplexing optical amplifier'19985,745,283'Method and apparatus for controlling optical amplifier used for optically amplifying wavelength-division multiplexed signal'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2021Patents assigned to FUJITSU LTD (50)· patent assignee history
1998–2013Based in Sapporo, JP· patent location history
2007–2021Based in Yokohama, JP· patent location history
2007–2015Based in Kawasaki, JP· patent location history
2011–2015Patents assigned to SHUKUNAMI NORIFUMI (11)· patent assignee history
2011–2015Patents assigned to TSUZUKI TATSUYA (5)· patent assignee history
2013–2015Patents assigned to YUKI MASAHIRO (2)· patent assignee history
2014Patents assigned to NAKAMURA KENTARO (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| FUJITSU LTD | 50 | 1998–2021 |
| SHUKUNAMI NORIFUMIself | 11 | 2011–2015 |
| TSUZUKI TATSUYA | 5 | 2011–2015 |
| NAKAMURA KENTARO | 3 | 2014 |
| YUKI MASAHIRO | 2 | 2013–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Sapporo, JP | 21 | 1998–2013 |
| Yokohama, JP | 15 | 2007–2021 |
| Kawasaki, JP | 14 | 2007–2015 |