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Inventor

Takumi Fujiwara

Inventor
Nagoya, JP

Overview

13→
Patents
1991–2021
Patent span
Physics
Primary field (CPC G)

Patents· 13 as inventor

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

G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein31%
C03CChemical composition of glasses, glazes or vitreous enamels15%
G02BOptical elements, systems or apparatus15%
C03BManufacture, shaping, or supplementary processes8%
C09KMaterials for miscellaneous applications, not provided for elsewhere4%
G06FElectric digital data processing4%
H01LSemiconductor devices4%
H04LTransmission of digital information, e.g. telegraphic communication4%
H05BElectric heating4%
H10HInorganic light-emitting semiconductor devices having potential barriers4%
PatentTitleYear
10,891,164Resource setting control device, resource setting control system, resource setting control method, and computer-readable recording medium20218,984,126'Service collaboration device, service collaboration method, and computer-readable recording medium'20158,926,865'White light-emitting glass, glass-covered light-emitting element, and light-emitting device'20158,201,421'Optical component and method for its production'20126,581,414'Optical nonlinearity material and production method therefor'20036,564,585'Method for producing a second-order nonlinear glass material'20036,466,722'Method of fabricating optical nonlinear thin film waveguide and optical nonlinear thin film waveguide'20026,380,109'Second-order nonlinear glass material'20026,374,026'Manufacture of planar waveguide and planar waveguide'20026,246,815'Grating element, light wavelength selection utilizing the same, and optical signal transmitting system'20015,966,233'Inducing or enhancing electro-optic properties in optically transmissive material with simultaneous UV irradiation and electric field application'19995,115,512'Optical waveguide device and method of making the same'19925,046,801'Optical waveguide having low optical damage'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992Based in Oume, JP· patent location history
1999–2003Based in Nagoya, JP· patent location history
2001–2003Patents assigned to TOYOTA MOTOR CO LTD (4)· patent assignee history
2001–2003Patents assigned to TOYOTA SCHOOL FOUNDATION (4)· patent assignee history
2012–2015Patents assigned to ASAHI GLASS CO LTD (2)· patent assignee history
2012–2015Patents assigned to FUJIWARA TAKUMI (2)· patent assignee history
2012Based in Sendai, JP· patent location history
2015–2021Patents assigned to NEC CORP (2)· patent assignee history
2015–2021Based in Tokyo, JP· patent location history
2015Based in Uji, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOYOTA MOTOR CO LTD42001–2003
TOYOTA SCHOOL FOUNDATION42001–2003
ASAHI GLASS CO LTD22012–2015
FUJIWARA TAKUMIself22012–2015
NEC CORP22015–2021
Locations
LocationPatentsSpan
Nagoya, JP71999–2003
Tokyo, JP22015–2021
Uji, JP12015
Sendai, JP12012
Oume, JP11992