Inventor
Kenichi Yoneyama
Inventor
Tokyo, JP
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Bprimary
H04BTransmission19%
H04LTransmission of digital information, e.g. telegraphic communication12%
H01SDevices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate light11%
H01RElectrically-conductive connections9%
H02GInstallation of electric cables or lines, or of combined optical and electric cables or lines9%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications9%
Y04SSystems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids9%
H04JMultiplex communication5%
C03CChemical composition of glasses, glazes or vitreous enamels2%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds2%
PatentTitleYear
8,277,254'Dual wiring system'20128,238,755'Dual wiring system'20128,138,636'Function unit for dual wiring system'20127,994,436'Base unit for dual wiring system'20117,772,717'Dual wiring system'20107,305,714'Anti-theft device for computer apparatus and a method for protecting computer apparatus thereby'20076,603,587'Optical amplifier repeater'20036,600,595'Multi-stage optical amplifier apparatus having fiber grating with a cutoff wavelength less than the pump light wavelength'20036,337,936'Optical amplifier, and method and apparatus for monitoring an optical fiber transmission path'20026,316,062'Magnetic recording medium and method of producing the same'20016,301,404'Supervisory signal optical bypass circuit, optical amplifying repeater and supervisory system'20016,226,090'Light timing pulses generating method and light timing circuit'20016,149,482'Method for manufacturing flat plate with precise bulkhead, flat plate with precise bulkhead, method for manufacturing plasma display unit substrate and plasma display unit substrate'20006,064,514'Optical surge preventing method and system for use with or in a rare earth doped fiber circuit'20005,923,453'Apparatus for measuring optical transmission line property and optical wavelength multiplexing transmission apparatus'19995,894,247'Optical PLL circuit and method of controlling the same'19995,876,281'Pulse air jet generator'19995,801,877'Optical fiber amplifier for superimposing a sub-signal'19985,801,860'Wavelength division multiplexing transmission system comprising a feedback section for transmitting a light power level signal from a light receiver to a light transmitter'19985,764,396'Optical regenerative circuit'19985,657,154'Monitoring system for all optical regenerators'19975,535,037'Optical repeater'19965,380,781'Cationically electrodepositable fine particles derived from alkoxysilane-modified epoxy resins and cationic electrodeposition paint composition comprising the same'19955,299,055'Optical fiber amplifier circuit comprising a control circuit for controlling a plurality of excitation light sources'19945,295,015'Optical amplifying apparatus'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994–2003Patents assigned to NEC CORP (14)· patent assignee history
1994–2003Based in Tokyo, JP· patent location history
2000Based in Kagoshima, JP· patent location history
2001Based in Ichihara, JP· patent location history
2007Based in Mountain View, CA, US· patent location history
2010–2012Patents assigned to PANASONIC ELEC WORKS CO LTD (3)· patent assignee history
2010–2012Based in Portland, OR, US· patent location history
2012Patents assigned to HAMAGUCHI HIDESHI (3)· patent assignee history
2012Patents assigned to OOGI KAZUFUMI (3)· patent assignee history
2012Patents assigned to UENO TAKESHI (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NEC CORP | 14 | 1994–2003 |
| HAMAGUCHI HIDESHI | 3 | 2012 |
| OOGI KAZUFUMI | 3 | 2012 |
| PANASONIC ELEC WORKS CO LTD | 3 | 2010–2012 |
| UENO TAKESHI | 3 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 15 | 1994–2003 |
| Portland, OR, US | 5 | 2010–2012 |
| Mountain View, California, US | 1 | 2007 |
| Ichihara, JP | 1 | 2001 |
| Kagoshima, JP | 1 | 2000 |