HAYAMIZU DENKI KOGYO KABUSHIKIKAISHA

Patent Owner

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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 1109
 
  
 
F21Y INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L, F21S and F21V, RELATING TO THE FORM OF THE LIGHT SOURCES 134
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
G09F DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS 138

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8997387 Light guide plate having diffused light printed dot patternJun 24, 09Apr 07, 15[F21V, F21Y, G09F, G06F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0011,360 SURFACE LIGHT-EMITTING DEVICEAbandonedFeb 25, 14Jan 14, 16[F21V]

Top Inventors for This Owner

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