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Assignee: Obayashi Corporation


Location: Osaka, JP
No. of patents: 36

NumberTitleIssue Date
7735356Measuring apparatus and measuring method for concrete-forming materials
A measuring apparatus of submergence aggregate according to the present invention comprising a stock bin for storing fine aggregate, a fine aggregate feed hopper placed under the stock bin, a vibrating feeder placed under a discharge opening of the fine aggregate fe...
06/15/2010
7578207Measuring apparatus and measuring method for concrete-forming materials
A measuring apparatus of submergence aggregate according to the present invention comprising a stock bin for storing fine aggregate, a fine aggregate feed hopper placed under the stock bin, a vibrating feeder placed under a discharge opening of the fine aggregate fe...
08/25/2009
7490439Double floor structure
An upper floor member 30 unitarily includes a floor panel portion 30a for forming a floor surface 12, a first wall portion 30b extending downwards from circumferential edges of the floor panel portion 30a and continuo...
02/17/2009
7207212Device and method for weighing concrete material
A measuring apparatus of submergence aggregate according to the present invention comprising a stock bin for storing fine aggregate, a fine aggregate feed hopper placed under the stock bin, a vibrating feeder placed under a discharge opening of the fine aggregate fe...
04/24/2007
7000458Weighing equipment for concrete material
A measuring apparatus (1) for concrete materials, comprising an aggregate hopper (3) as aggregate feed means for feeding fine aggregate (2) as aggregate, a water supply pipe (4) as water supply means, an aggregate measuring bin (51...
02/21/2006
6722088Elevated bridge infrastructure and design method for designing the same
In order to design an infrastructure of an elevated bridge, first a target ductility factor μd and target natural period Td for the infrastructure are set in connection with an assumed earthquake motion. Subsequently, a yield seismic coefficient for the ...
04/20/2004
6698053Method for seismically reinforcing a reinforced concrete frame
A reinforced concrete frame is seismically reinforced by cutting a main reinforcement bar of a reinforced concrete member so as to shift a failure property of the reinforced concrete member from a shear failure preceding type to a bending failure precedin...
03/02/2004
6543077Elevated bridge infrastructure and design method for designing the same
A method for designing a seismic frame. Models of a reinforced concrete rigid frame and a seismic frame structure, respectively, are provided. Based on distances between components and damper load displacement in the seismic frame structure model, a burde...
04/08/2003
6425157Elevated bridge infrastructure design method
In order to design an infrastructure of an elevated bridge, first a target ductility factor μd and target natural period Td for the infrastructure are set in connection with an assumed earthquake motion. Subsequently, a yield seismic coefficie...
07/30/2002
6305873Jointing construction
Structural members 1, 21 are connected by way of a connecting rod 3 which is attached to one structural member 1 and projects outward from connecting surface 2 of structural member 1 in the direction of other structural member 21, and a connector 23 which...
10/23/2001
6302621Segment for intake tunnels
A segment 20 has segment units 22 obtained by dividing a cylindrical body having an appointed length into four sections along the circumferential direction. The segment units 22 are provided with a segment body 22a, a porous concrete layer 22b, water inta...
10/16/2001
6219986Method for reinforcing wall structure
A method for reinforcing an existing wall structure which is capable of preventing buckling of end surfaces of the wall structure and increasing earthquake-resistance ability by imparting restricting force evenly to the end surfaces of the wall structure....
04/24/2001
6139801Gas collecting apparatus
The present invention relates to a gas collecting system collecting an inspection objective gas, such as a toxic gas discharged into an ambient air, and particularly to a gas collecting system which can achieve down-sizing of the system and permit impleme...
10/31/2000
6095719Process for constructing intake pipe
With a method for constructing a water intake pipe, a vertical shaft 10 is constructed, and a shield tunnel 12 is constructed by causing a shield driving machine to advance from the vertical shaft 10 toward a seashore by breaking the wall of the vertical ...
08/01/2000
6092963Tail structure of shield driving machine
The present invention relates to a tail structure of a shield driving machine, and in particular relates to an improvement technique of the tail sealing portion of this type of shield driving machine, in order to eliminate wearing of the tail seal. The ta...
07/25/2000
6082930Shield driving machine
The present invention relates to a shield driving machine by which eliminates excessive work of the ground when working at a curved section while suppressing an increase of the sinking of the ground surface and securing a quickening in the stability of se...
07/04/2000
6076995Segments
One end of a circumferential joining end surface 2 of segments 1 which are joined together in the circumferential direction of an excavated tunnel is made the male side circumferential joining end surface 2a on which a male coupler 4 is provided, and the ...
06/20/2000
6070640Walk-through type waterproof screen apparatus
A walk-through type fire-limiting screen arrangement separates an interior space of a building and prevents fire from propagating and assists refugees to escape from the fire. A non-combustible or fire-proof screen droops from a ceiling or a beam. At leas...
06/06/2000
6058339Autonomous guided vehicle guidance device
When material transport was automated on a building construction site, in a conventional travel tape guide system, it was necessary to replace the tape when it became soiled or when changes were made to a travel route. As a result, the usage efficiency of...
05/02/2000
5891224Rubber modified asphalt type of water-proofing compositions
An object of the invention is to provide a rubber modified asphalt type of waterproofing composition which can be used in a normal temperature type of spray waterproofing method and can find its application in waterproofing, moisture-proofing, rustproofin...
04/06/1999
5881504Temporary frame system for construction
A temporary frame system includes four masts arranged outside of a building to be constructed. The frame system includes a climbing mechanism mounted on each mast for upward and downward movement thereon, a canopy frame fixed at four corners by respective...
03/16/1999
5866211Rubber modified asphalt type of water-proofing compositions
An object of the invention is to provide a rubber modified asphalt type of waterproofing composition which can be used in a normal temperature type of spray waterproofing method and can find its application in waterproofing, moisture-proofing, rustproofin...
02/02/1999
5720445Apparatus for winding reinforcing fibers around column
An apparatus for winding reinforcing fibers around a column is provided which comprises a non-rotatable annular frame provided around the column to be moved up and down; a rotatable annular frame provided upon the non-rotatable annular frame and arranged ...
02/24/1998
5674313Rubber modified asphalt type of water-proofing composition
An object of the invention is to provide a rubber modified asphalt type of waterproofing composition which can be used in a normal temperature type of spray waterproofing method and can find its application in waterproofing, moisture-proofing, rustproofin...
10/07/1997
5623108Method and system for measuring three-dimensional displacement
A method for measuring three-dimensional displacement of a mass comprises the steps of providing a measuring object placed on the end surface of the mass, for reflecting at least a fraction of three-dimensional displacement of the mass, arranging a displa...
04/22/1997
5615978Management system for water-barrier sheet
In a management system for a water-barrier sheet having a double layer structure with an upper sheet and a lower sheet, the interior space of the water-barrier sheet is hermetically sealed and divided into a plurality of enclosed divisions. A vacuum sourc...
04/01/1997
5542220Hydrostatic anti-vibration system and adjusting method therefor
A hydrostatic anti-vibration system includes a main tank provided on a construction to be suppressed from vibrating and having a main tank body of substantially flat rectangular configuration. Hollow vertical extensions extend upwardly from peripheral edg...
08/06/1996
5540771Concrete product using aggregates obtained by pulverizing melt slags and the method of fabricating the same
A concrete product which uses 100% of the melt slags and pulverizes the melt slags into aggregates and fine powders, grinds the aggregates so that the percentage of absolute volume of the aggregates is over 60%, mixes the aggregates, fine powders, water a...
07/30/1996
5511429Method and system for measuring three-dimensional displacement
A three-dimensional displacement measuring system measures the three-dimensional displacement of a mass such as rock. A first cylindrical member is provided as a displacement indicating device and is arranged on one side of a discontinuous surface, such a...
04/30/1996
5392935Control system for cable crane
A cable crane system includes a main cable stretched between two points, a transverse trolley traveling along the main cable, a traction cable for driving the trolley, a bucket hung by a hanging cable, a transverse winch for driving the traction cable for...
02/28/1995
5375944Waste disposing ground or facility
A waste disposing ground or facility includes a space in the form of a cavity for receiving waste therein. A planar structure covers the entire overall upper opening of the cavity. The planar structure is constructed in advance of starting disposal of was...
12/27/1994
5366549Method for fabricating fiber-reinforced slag gypsum cement-based, lightweight set articles
A method is provided for making a fiber-reinforced slag gypsum cement lightweight hardened product. The method consists essentially of mixing (1) from 5 to 140 parts by weight of aggregates having a maximum size of not larger than 2000 μm to (2) 100 part...
11/22/1994
5317854Precast concrete panel for a composite floor
A precast concrete panel for a composite floor has a number of concavities provided in a surface thereof. Each concavity is in the form of a groove and includes alternately formed shallow and deep sections which are adjacent each other. The concavities ex...
06/07/1994
5243834Low temperature food storage equipment
The low temperature food storage equipment of the present invention is provided with an icehouse and a food storeroom each surrounded by a heat insulator. The icehouse and the storeroom are connected by a detachable heat exchanger disposed therebetween. I...
09/14/1993
5240082Rotary boring machine
A rotary boring machine comprises a base machine placed on the ground, a boring drill provided with the base machine and driven for rotation, a dip gauge provided at the tip end of the boring drill, a first circuit provided in an intermediate portion of t...
08/31/1993
5106163Method and apparatus for inspecting a forward end portion in a tunneling machine
A system for inspecting a forward end portion in a tunneling machine including cutter bits and a chamber such as a tunnel boring machine or a shield tunneling machine. The system includes an apparatus for inspecting a forward end portion comprising at lea...
04/21/1992
 
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