Inventor
Hajime Sakata
Inventor
Hiratsuka, JP
Overview
Patents· 43 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 light27%
G02BOptical elements, systems or apparatus24%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein21%
H04NPictorial communication, e.g. television8%
B82YSpecific uses or applications of nanostructures6%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them3%
A61BDiagnosis1%
B05DProcesses for applying fluent materials to surfaces, in general1%
C09KMaterials for miscellaneous applications, not provided for elsewhere1%
G01NInvestigating or analysing materials by determining their chemical or physical properties1%
PatentTitleYear
9,661,993'Endoscope'20178,213,247'Memory device with test mechanism'20127,809,032'Control method of distributed Bragg reflection semiconductor laser, and image projecting apparatus'20107,512,160'Control method of distributed Bragg reflection semiconductor laser, and image projecting apparatus'20097,411,992'Light wavelength converting apparatus, control method of the same, and image projecting apparatus using the same'20087,313,156'Control method of distributed Bragg reflection semiconductor laser, and image projecting apparatus'20077,039,077'Optical wavelength converting apparatus, and optical wavelength converting method'20066,987,785'Harmonic generator, method for driving harmonic generator, image-displaying apparatus, image-forming apparatus, optical storage apparatus that employs harmonic generator'20066,972,737'Image display apparatus'20056,945,652'Projection display device'20056,932,516'Surface optical device apparatus, method of fabricating the same, and apparatus using the same'20056,919,985'Optical wavelength converting apparatus and optical wavelength converting method'20056,868,214'Optical waveguide, method of fabricating the waveguide, and optical interconnection device using the waveguide'20056,639,927'Surface emitting semiconductor laser, and its fabrication method'20036,424,418'Surface plasmon resonance sensor apparatus using surface emitting laser'20026,201,644'Light deflection device and array thereof'20016,154,302'Light deflection device and array thereof'20006,072,925'Optical integrated nodes, and optical communication systems and networks using the optical integrated nodes'20005,878,066'Optical semiconductor apparatus driving method therefor light source apparatus and optical communication system using the same'19995,701,325'Compound semiconductor device and fabrication method of producing the compound semiconductor device'19975,648,978'Oscillation polarization mode selective semiconductor laser, modulation method therefor and optical communication system using the same'19975,473,448'Display device having a mesomorphic diffraction grating layer adjacent a polymer dispersed layer'19955,349,598'Optical semiconductor apparatus, a method of driving the same and an optical transmission system using the same'19945,333,216'Optical device used wavelength selective photocoupler'19945,299,037'Diffraction grating type liquid crystal display device in viewfinder'19945,287,422'Integrated type optical node and optical information system using the same'19945,233,187'Multi-wavelength light detecting and/or emitting apparatuses having serially arranged grating directional couplers'19935,222,163'Integrated type optical node and optical information system using the same'19935,220,573'Optical apparatus using wavelength selective photocoupler'19935,155,736'Semiconductor laser element capable of changing emission wavelength, and method of driving the same'19925,148,302'Optical modulation element having two-dimensional phase type diffraction grating'19925,140,149'Optical apparatus using wavelength selective photocoupler'19925,131,060'Optical waveguide modulator communications device and method of modulating light using same'19925,109,444'Integrated type optical node and optical information system using the same'19925,088,097'Semiconductor laser element capable of changing emission wavelength, and method of driving the same'19925,013,141'Liquid crystal light modulation device'19915,002,369'Nonlinear optical element having electrodes on two side surfaces of nonlinear medium through insulating layers'19914,926,177'Optical analog-digital converter provided with a nonlinear optical element and an optical feedback system for the output lights of said element'19904,856,869'Display element and observation apparatus having the same'19894,850,681'Optical modulation device'19894,729,640'Liquid crystal light modulation device'19884,707,743'Method and apparatus for image conversion with multiple exposures for filtering'19874,481,233'Process for producing solid-state color image pickup array'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–2010Patents assigned to CANON KK (39)· patent assignee history
1984–2017Based in Tokyo, JP· patent location history
1989–1994Based in Hiratsuka, JP· patent location history
1992–2012Patents assigned to SAKATA HAJIME (2)· patent assignee history
1992Patents assigned to FUJIWARA RYOJI (1)· patent assignee history
1992Patents assigned to IBM (1)· patent assignee history
1992Patents assigned to ISHII TAKAYUKI (1)· patent assignee history
1993–2002Based in Atsugi, JP· patent location history
2003–2006Based in Kanagawa, JP· patent location history
2007–2009Based in Hamamatsu, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANON KK | 39 | 1984–2010 |
| SAKATA HAJIMEself | 2 | 1992–2012 |
| FUJIWARA RYOJI | 1 | 1992 |
| IBM | 1 | 1992 |
| ISHII TAKAYUKI | 1 | 1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hiratsuka, JP | 14 | 1989–1994 |
| Atsugi, JP | 10 | 1993–2002 |
| Kanagawa, JP | 8 | 2003–2006 |
| Tokyo, JP | 5 | 1984–2017 |
| Hamamatsu, JP | 3 | 2007–2009 |