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Inventor

Norio Takato

Inventor
Katsuta, JP

Overview

9→
Patents
1980–2009
Patent span
Physics
Primary field (CPC G)

Patents· 9 as inventor

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

G02Bprimary
G02BOptical elements, systems or apparatus67%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein17%
G01MTesting static or dynamic balance of machines or structures8%
G06FElectric digital data processing8%
PatentTitleYear
7,499,613'Y branch circuit and method for manufacturing the same'20097,086,789'Optical element module with a primary coated optical fiber'20065,546,483'Integrated optical waveguide circuit and optical branch line test system using the same'19965,044,715'Guided-wave optical branching components and optical switches'19914,978,188'Integrated optical device and method for manufacturing thereof'19904,900,112'Integrated optical device and method for manufacturing thereof'19904,781,424'Single mode channel optical waveguide with a stress-induced birefringence control region'19884,320,292'Coordinate input apparatus'19824,240,849'Polymer optical circuit with optical lead-fibers and method of fabricating the same'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–2009Patents assigned to NIPPON TELEGRAPH & TELEPHONE (9)· patent assignee history
1980–1988Based in Mito, JP· patent location history
1990–1996Based in Katsuta, JP· patent location history
2006–2009Patents assigned to NTT ELECTRONICS CORP (2)· patent assignee history
2006–2009Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON TELEGRAPH & TELEPHONE91980–2009
NTT ELECTRONICS CORP22006–2009
Locations
LocationPatentsSpan
Katsuta, JP41990–1996
Mito, JP31980–1988
Tokyo, JP22006–2009