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Inventor

Ryoji Fujiwara

Inventor
Chigasaki, JP

Overview

29→
Patents
1984–2012
Patent span
Electricity
Primary field (CPC H)

Patents· 29 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H01Jprimary
H01JElectric discharge tubes or discharge lamps24%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein20%
B82YSpecific uses or applications of nanostructures9%
C09KMaterials for miscellaneous applications, not provided for elsewhere7%
G09GArrangements or circuits for control of indicating devices using static means to present variable information7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
H01BCables5%
H04NPictorial communication, e.g. television4%
H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation4%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution4%
PatentTitleYear
8,134,288'Electron-emitting device, electron source, and image display apparatus'20128,125,470'Electron source, image display apparatus, and information display reproducing apparatus'20128,080,932'Electron-emitting device, electron source, image display apparatus and method for manufacturing electron-emitting device'20118,075,360'Electron-emitting device, electron source, image display apparatus, and manufacturing method of electron-emitting device'20117,994,701'Electron-emitting device, electron source, image display apparatus, and manufacturing method of electron-emitting device'20117,811,625'Method for manufacturing electron-emitting device'20107,733,006'Electron-emitting device and manufacturing method thereof'20107,682,213'Method of manufacturing an electron emitting device by terminating a surface of a carbon film with hydrogen'20107,583,016'Producing method for electron-emitting device and electron source, and image display apparatus utilizing producing method for electron-emitting device'20097,400,099'Flat panel image display device'20087,259,520'Electron emission device, electron source, and image display having dipole layer'20077,109,663'Electron emission device, electron source, and image display having dipole layer'20066,106,906'Material for forming electroconductive film, method of forming electroconductive film by using the same and method of manufacturing electron-emitting device, electron source and image-forming apparatus'20005,838,410'Optical modulation element'19985,675,351'Method and apparatus for driving active matrix liquid crystal device'19975,479,283'Ferroelectric liquid crystal apparatus having a threshold voltage greater than the polarization value divided by the insulating layer capacitance'19955,475,515'Liquid crystal device having a stretched porous polymer film impregnated with a low molecular weight mesomorphic compound'19955,396,352'Liquid crystal apparatus with gradation information signals and DC bias'19955,327,272'Optical modulation element'19945,321,538'Method for gradation display using a liquid crystal optical element with minute insulation portions on the electrodes'19945,270,844'Liquid crystal optical element with minute insulation portions on the electrodes'19935,260,817'Liquid crystal optical device comprising a liquid crystal pixel and a parallel circuit for providing a gradation of display'19935,148,302'Optical modulation element having two-dimensional phase type diffraction grating'19924,902,109'Electrochromic device'19904,892,594'Photovoltaic element'19904,850,681'Optical modulation device'19894,670,334'Transparent electroconductive film'19874,605,285'Electrochromic device'19864,438,972'Operating mechanism for operating a sliding and tilting roof-panel'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2012Patents assigned to CANON KK (27)· patent assignee history
1986–1987Based in Sagamihara, JP· patent location history
1989–1990Based in Kamakura, JP· patent location history
1992–2012Patents assigned to FUJIWARA RYOJI (5)· patent assignee history
1992–2012Patents assigned to NISHIMURA MICHIYO (3)· patent assignee history
1992Based in Shimomaruko, Ohta-ku, Tokyo, JP· patent location history
1993–2012Based in Chigasaki, JP· patent location history
2006–2010Based in Kanagawa, JP· patent location history
2011–2012Patents assigned to MURAKAMI SHUNSUKE (3)· patent assignee history
2011–2012Patents assigned to NOMURA KAZUSHI (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK271986–2012
FUJIWARA RYOJIself51992–2012
MURAKAMI SHUNSUKE32011–2012
NISHIMURA MICHIYO31992–2012
NOMURA KAZUSHI22011–2012
Locations
LocationPatentsSpan
Chigasaki, JP171993–2012
Kanagawa, JP52006–2010
Kamakura, JP31989–1990
Sagamihara, JP21986–1987
Shimomaruko, Ohta-ku, Tokyo, JP11992