T. CHATANI & CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 2108
 
  
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 1132

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9523483 Light irradiation device, backlight device and display apparatusSep 02, 13Dec 20, 16[F21V, F21Y, G02F]
5377084 Surface illuminating apparatusOct 01, 93Dec 27, 94[F21V]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0033,229 MANUFACTURING METHOD FOR LUMINOUS BODY, LUMINOUS BODY, AND LIGHT-EMITTING APPARATUSAbandonedJan 18, 06Feb 05, 09[B05D, H05B]
5555160 Light-guiding panel for surface lighting and a surface lighting bodyExpiredOct 06, 94Sep 10, 96[F21V]
4860171 Surface illuminating apparatusExpiredOct 19, 88Aug 22, 89[F21V]

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