OBAYASHI CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 3203
 
  
 
B28C PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER 114
 
  
 
C04B LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS 167
 
  
 
E02B HYDRAULIC ENGINEERING 117
 
  
 
G01G WEIGHING 127

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2013/0213,274 CEMENT COMPOSITION, METHOD FOR PRODUCING MIXED MATERIAL, AND METHOD FOR PRODUCING CEMENT COMPOSITIONJul 15, 11Aug 22, 13[C04B, B28C]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8915672 Movable breakwater and method of operating movable breakwaterJun 04, 10Dec 23, 14[E02B]
7735356 Measuring apparatus and measuring method for concrete-forming materialsFeb 26, 07Jun 15, 10[G01N]
7578207 Measuring apparatus and measuring method for concrete-forming materialsFeb 26, 07Aug 25, 09[G01G]
7207212 Device and method for weighing concrete materialJan 23, 02Apr 24, 07[G01N]
7000458 Weighing equipment for concrete materialJun 10, 02Feb 21, 06[G01N]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0202,358 Seawater-Mixed Concrete, Concrete Structure Constructed with the Same, and Design Method of Concrete Structure Constructed with Seawater-Mixed ConcreteAbandonedMar 24, 14Jul 24, 14[C04B]
2013/0089,661 WATERPROOFING AGENT FOR WATERPROOF SHEET REPAIR METHODAbandonedNov 28, 12Apr 11, 13[B05D, C09D]
2012/0156,503 SEAWATER-MIXED CONCRETE, CONCRETE STRUCTURE CONSTRUCTED WITH THE SAME, AND DESIGN METHOD OF CONCRETE STRUCTURE CONSTRUCTED WITH SEAWATER-MIXED CONCRETEAbandonedAug 23, 11Jun 21, 12[C04B, B32B]
7490439 Double floor structureExpiredJan 31, 03Feb 17, 09[E04B]
2006/0248,840 Section steel and wall body using the section steelAbandonedMar 17, 04Nov 09, 06[E04H]
2005/0055,915 Foundation structure of prestressed concrete tankAbandonedJul 14, 04Mar 17, 05[E02D]
6722088 Elevated bridge infrastructure and design method for designing the sameExpiredMay 08, 02Apr 20, 04[E04B]
6698053 Method for seismically reinforcing a reinforced concrete frameExpiredMay 08, 02Mar 02, 04[E01D]
6543077 Elevated bridge infrastructure and design method for designing the sameExpiredMay 08, 02Apr 08, 03[G06F, E04H]
6425157 Elevated bridge infrastructure design methodExpiredMay 31, 00Jul 30, 02[E01D]
6305873 Jointing constructionExpiredMay 03, 99Oct 23, 01[F16B, B25G]
6302621 Segment for intake tunnelsExpiredFeb 03, 99Oct 16, 01[E21D]
6219986 Method for reinforcing wall structureExpiredApr 06, 99Apr 24, 01[B65B]
6139801 Gas collecting apparatusExpiredApr 05, 99Oct 31, 00[G01N]
6136608 Method for determining formaldehyde present in airExpiredApr 05, 98Oct 24, 00[G01N]
6095719 Process for constructing intake pipeExpiredFeb 03, 99Aug 01, 00[E01F]
6092963 Tail structure of shield driving machineExpiredNov 03, 98Jul 25, 00[E21D]
6082930 Shield driving machineExpiredNov 03, 98Jul 04, 00[E03F]
6076995 SegmentsExpiredJan 29, 99Jun 20, 00[E21D]
6058339 Autonomous guided vehicle guidance deviceExpiredNov 14, 97May 02, 00[G06F]

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