KOYO SANGYO CO., LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 2123
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM2155
 
  
 
A61M DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY 1153
 
  
 
B27J MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS13
 
  
 
E04C STRUCTURAL ELEMENTS; BUILDING MATERIALS 125

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8268427 Display sheetDec 17, 08Sep 18, 12[D06N, B32B]
6063320 Apparatus for and process of hot pressing boardsSep 18, 98May 16, 00[B29C]
5769998 Method for forming aggregation body by thermocompressionAug 17, 95Jun 23, 98[B29J]
5456964 Laminated material and process for manufacturing the sameJun 08, 94Oct 10, 95[E04C, B32B]
5346574 Process for manufacturing a laminateJul 01, 92Sep 13, 94[B29C, B27J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0316,127 BAMBOO BOARD AND A COMPOSITE BOARD AND FABRICATION METHOD FOR SAMEAbandonedJul 28, 11Nov 28, 13[B27N, B27J, B32B]
5917271 Piezo-electric driving deviceExpiredJun 19, 97Jun 29, 99[H01L]
5423578 Coupling for corrugated pipeExpiredSep 07, 93Jun 13, 95[F16L]
4968549 Laminated material made of annual lignocellulosic stalksExpiredNov 10, 88Nov 06, 90[B27J, B32B]
4818321 Preparation of laminated materialExpiredMay 29, 87Apr 04, 89[B32B]

Top Inventors for This Owner

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