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Oohama

Hiroyasu Oohama, Hyogo JP

Patent application numberDescriptionPublished
20110278835PIPE JOINT - An annular sealing material seals a pipe joint between a socket and a spigot. The sealing material includes a bulb part which is composed of a first bulb, a second bulb located closer to the inner side of the socket than the first bulb, and a narrow part present between the first and second bulbs. The first bulb is pressed against the inner circumferential surface of the socket. The second bulb is pressed against the outer peripheral surface of the spigot. The second bulb is inclined towards the pipe center from the first bulb in a natural state before it is provided between the socket and the spigot. The inner diameter of the second bulb is smaller than the outer diameter of the spigot in the natural state. The second bulb is extensible in the pipe diameter direction due to elastic deformation of the narrow part.11-17-2011

Kenichi Oohama, Ichinomiya-Shi JP

Patent application numberDescriptionPublished
20110194246POWER CONVERSION APPARATUS - An electric power conversion apparatus is provided which includes electronic components, a cooler, an internal unit, a capacitor, and a case. The internal unit has a frame to which at least one of the electronic components and the cooler are secured and which surrounds all around the one of the electronic components. The frame includes unit fixing sections through which the internal unit is fixed to the case and capacitor fixing sections through which the capacitor is fixed to the internal unit. The capacitor fixing sections are located inward of the frame more than the unit fixing sections. The internal unit is fixed to the case and thus works as a beam to increase the mechanical rigidity of the case. The fixing of the internal unit to the case minimizes external force to be exerted through the case on the electronic component and the cooler.08-11-2011
20110194247POWER CONVERSION APPARATUS - In a power conversion apparatus, electronic components and a cooler are integrated in a frame as an internal unit. The internal unit is fixed within a case through the frame. The frame has such a shape that the electronic components are surrounded by the frame, and includes a first wall section, and second and third wall sections extending from both sides of the first wall section. The cooler includes a coolant introduction tube and a coolant discharge tube. The coolant introduction tube and the coolant discharge tube project outward from to the frame. The first to third wall sections include a support wall section supporting at least one of the coolant introduction tube and the coolant discharge tube, and a frame wall section not supporting the coolant introduction tube and the coolant discharge tube. The thickness of the support wall section is larger than the thickness of the frame wall section.08-11-2011
20110194248POWER CONVERSION APPARATUS - The power conversion apparatus includes electronic components constituting a power conversion circuit, a cooler for cooling at least some of the electronic components, and a case housing the electronic components and the cooler. The at least some of the electronic components and the cooler are fixed to and integrated in a frame as an internal unit . The internal unit including therein the semiconductor modules also includes a control circuit board fitted to board fixing sections formed in the frame so as to project from the frame in the height direction perpendicular to the plane of the frame. Each of the board fixing sections has a board abutment surface at a position closer to the frame than the tips of control terminals of the semiconductor modules formed so as to project in the height direction.08-11-2011
20110194249POWER CONVERSION APPARATUS - A power conversion apparatus includes electronic components configuring a power conversion circuit, a cooler for cooling at least part of the electronic components, and a case housing the electronic components and the cooler. The at least part of the electronic components and the cooler are fixed to and integrated in a frame as an internal unit. The internal unit is fixed within the case through the frame. The frame has such a shape that the at least part of the electronic components is surrounded by the frame from four sides.08-11-2011

Shinji Oohama, Hiroshima JP

Patent application numberDescriptionPublished
20100212467SLIDE-TYPE CUTTING MACHINE - A slide type cutting machine which conducts cutting work of a timber etc. more safely and can be stored compactly. A straight guide device (08-26-2010

Toshio Oohama, Ibaraki JP

Patent application numberDescriptionPublished
20100016507THERMOPLASTIC RESIN, PROCESS FOR PRODUCTION OF THE SAME, AND MOLDED ARTICLE MANUFACTURED FROM THE SAME - The objective of the present invention is to provide a thermoplastic resin capable of producing a thin-walled article such as a film, a sheet and a bag stably by extrusion such as calender molding, and of leading to a thin-walled article wherein an undesirable phenomenon due to flow marks generated on the surface is improved and which is excellent in whitening resistance upon bending, and the like, and a method for the production thereof, a molded article and a composite article comprising thereof. The present thermoplastic resin comprises an acryl-based rubbery polymer reinforced resin having a graft ratio of 80% to 170%, a number-average particle diameter of an acryl-based rubbery polymer of 60 to 150 nm, an intrinsic viscosity of a component dissolved by acetonitrile of 0.4 to 0.8 dl/g, a content of a bound cyanidated vinyl compound in the component dissolved by acetonitrile of 20% to 30% by mass, and standard deviation of a distribution of the content of a bound cyanidated vinyl compound measured using liquid chromatography is 5 or less.01-21-2010