Patents by Inventor Yukio Kawasaki
Yukio Kawasaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8562497Abstract: A machine tool including a base frame, a workpiece table, a machining unit, and a connection portion is disclosed. The base frame has a machining area. The base frame includes two left and right side frames and a connection frame connecting the two side frames. The workpiece table is arranged on the base frame in the machining area. The machining unit is arranged on an upper portion of the base frame and includes a spindle device. A connection portion connects the machining unit and the base frame in a detachable manner.Type: GrantFiled: February 26, 2008Date of Patent: October 22, 2013Assignee: Komatsu NTC Ltd.Inventors: Akira Tanizaki, Akira Takase, Yukio Kawasaki, Shiro Murai, Kinya Nakamura, Fumihiro Kamikonya, Yasuo Hasegawa
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Patent number: 8135557Abstract: An apparatus for testing a semiconductor integrated circuit includes an input part that inputs circuit description data that describes a circuit structure of the semiconductor integrated circuit, a clock domain of the semiconductor integrated circuit, and a first test vector to be used for testing a normal operation of the semiconductor integrated circuit, and a simulator that performs a simulation on the semiconductor integrated circuit with the use of a test vector.Type: GrantFiled: August 21, 2008Date of Patent: March 13, 2012Assignee: Kabushiki Kaisha ToshibaInventor: Yukio Kawasaki
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Publication number: 20100306725Abstract: An apparatus for designing a semiconductor integrated circuit according to an embodiment of the present invention includes an interface circuit information extracting unit configured to specify one or more transmitting registers and one or more receiving registers forming an interface that needs to be synchronized, an insertion point candidate specifying unit configured to specify a number of supply sources that is of a number of the transmitting registers serving as data supply sources, for each receiving register, and specify at least one insertion point candidate based on the number of supply sources, an insertion point specifying unit configured to specify a number of output destinations that is of a number of the receiving registers serving as data output destinations, for each transmitting register, and specify at least one insertion point based on the number of output destinations and the insertion point candidate, and a synchronization circuit inserting unit configured to insert a synchronization circType: ApplicationFiled: March 15, 2010Publication date: December 2, 2010Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Yukio KAWASAKI
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Publication number: 20100202848Abstract: A machine tool including a base frame, a workpiece table, a machining unit, and a connection portion is disclosed. The base frame has a machining area. The base frame includes two left and right side frames and a connection frame connecting the two side frames. The workpiece table is arranged on the base frame in the machining area. The machining unit is arranged on an upper portion of the base frame and includes a spindle device. A connection portion connects the machining unit and the base frame in a detachable manner.Type: ApplicationFiled: February 26, 2008Publication date: August 12, 2010Applicant: KOMATSU NTC LTD.Inventors: Akira Tanizaki, Akira Takase, Yukio Kawasaki, Shiro Murai, Kinya Nakamura, Fumihiro Kamikonya, Yasuo Hasegawa
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Publication number: 20090063086Abstract: An apparatus for testing a semiconductor integrated circuit includes an input part that inputs circuit description data that describes a circuit structure of the semiconductor integrated circuit, a clock domain of the semiconductor integrated circuit, and a first test vector to be used for testing a normal operation of the semiconductor integrated circuit, and a simulator that performs a simulation on the semiconductor integrated circuit with the use of a test vector.Type: ApplicationFiled: August 21, 2008Publication date: March 5, 2009Applicant: KABUSHIKI KAISHA TOSHIBAInventor: Yukio Kawasaki
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Patent number: 7231277Abstract: In a state of separating a front end face of an air injecting nozzle 23 from a worked work W by a predetermined interval h, the air injecting nozzle 23 is moved at a constant speed in an X axis direction, injects air from an injecting hole 27a of a nozzle main body 27 and is moved to pass centers O1, O2 of worked holes Wb, Wc of the work W. A variation in a pressure is measured by a pressure measuring unit 30. X axis coordinates of the centers O1, O2 of the holes Wb, Wc, a hole diameter E and a center interval distance D1 are calculated based on coordinates of center points T1, T2 of inclined portions Ld, Lu of a curve Lx of the pressure relative to the measured X axis coordinate.Type: GrantFiled: June 9, 2005Date of Patent: June 12, 2007Assignee: Nippei Toyama CorporationInventors: Yukio Kawasaki, Teruhiro Nishizaki, Shiro Murai, Hisao Sasaki
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Patent number: 7070118Abstract: A vehicle cooling device for radiating the heat using a refrigerant includes a main valve for controlling a flow distribution of the refrigerant distributed to a radiator and to at least one of conduits among conduits where the refrigerant flows bypassing the radiator in accordance with a valve opening degree, a thermo element for varying the valve opening degree in accordance with the temperature of the refrigerant, the thermo element including a temperature sensing portion, a water pump for circulating the refrigerant via the main valve, the water pump including an inlet, a radiator conduit provided downstream of the radiator, the inlet of the water pump and the radiator conduit arranged being opposite to each other along an operational direction of the main valve, and the temperature sensing portion of the thermo element positioned at the inlet side of the water pump relative to the main valve.Type: GrantFiled: February 26, 2004Date of Patent: July 4, 2006Assignees: Aisin Seiki Kabushiki Kaisha, Nippon Thermostat Co. LtdInventors: Yukio Kawasaki, Toshitaka Suzuki
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Publication number: 20050288816Abstract: In a state of separating a front end face of an air injecting nozzle 23 from a worked work W by a predetermined interval h, the air injecting nozzle 23 is moved at a constant speed in an X axis direction, injects air from an injecting hole 27a of a nozzle main body 27 and is moved to pass centers O1, O2 of worked holes Wb, Wc of the work W. A variation in a pressure is measured by a pressure measuring unit 30. X axis coordinates of the centers O1, O2 of the holes Wb, Wc, a hole diameter E and a center interval distance D1 are calculated based on coordinates of center points T1, T2 of inclined portions Ld, Lu of a curve Lx of the pressure relative to the measured X axis coordinate.Type: ApplicationFiled: June 9, 2005Publication date: December 29, 2005Inventors: Yukio Kawasaki, Teruhiro Nishizaki, Shiro Murai, Hisao Sasaki
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Publication number: 20040169090Abstract: A vehicle cooling device for radiating the heat using a refrigerant includes a main valve for controlling a flow distribution of the refrigerant distributed to a radiator and to at least one of conduits among conduits where the refrigerant flows bypassing the radiator in accordance with a valve opening degree, a thermo element for varying the valve opening degree in accordance with the temperature of the refrigerant, the thermo element including a temperature sensing portion, a water pump for circulating the refrigerant via the main valve, the water pump including an inlet, a radiator conduit provided downstream of the radiator, the inlet of the water pump and the radiator conduit arranged being opposite to each other along an operational direction of the main valve, and the temperature sensing portion of the thermo element positioned at the inlet side of the water pump relative to the main valve.Type: ApplicationFiled: February 26, 2004Publication date: September 2, 2004Applicants: AISIN SEIKI KABUSHIKI KAISHA, NIPPON THERMOSTAT CO., LTD.Inventors: Yukio Kawasaki, Toshitaka Suzuki
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Patent number: 6543427Abstract: An exhaust gas recirculation (EGR) system in an engine system includes an intake passage, an exhaust passage, an EGR passage, a connecting passage and an exhaust gas regulating valve. The exhaust passage is provided with a catalyst and a muffler. The EGR passage is provided with a heat exchanger and an EGR valve. The connecting passage fluidly connects the exhaust passage and the EGR passage. The exhaust gas regulating valve is mounted at a merging portion defined between the exhaust passage and the connecting passage. Based on the opening degree of the exhaust gas regulating valve, the exhaust gas flow is adjustably regulated into recirculating flow into the EGR passage or flow through the exhaust passage. Based on the opening degree of the EGR valve, the recirculated exhaust gas in the EGR passage is adjustably regulated into recirculating flow into the intake passage or flow into the connecting passage after passing through the heat exchanger.Type: GrantFiled: March 28, 2001Date of Patent: April 8, 2003Assignee: Aisin Seiki Kabushiki KaishaInventor: Yukio Kawasaki
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Publication number: 20010047798Abstract: An exhaust gas recirculation (EGR) system in an engine system includes an intake passage, an exhaust passage, an EGR passage, a connecting passage and an exhaust gas regulating valve. The exhaust passage is provided with a catalyst and a muffler. The EGR passage is provided with a heat exchanger and an EGR valve. The connecting passage fluidly connects the exhaust passage and the EGR passage. The exhaust gas regulating valve is mounted at a merging portion defined between the exhaust passage and the connecting passage. Based on the opening degree of the exhaust gas regulating valve, the exhaust gas flow is adjustably regulated into recirculating flow into the EGR passage or flow through the exhaust passage. Based on the opening degree of the EGR valve, the recirculated exhaust gas in the EGR passage is adjustably regulated into recirculating flow into the intake passage or flow into the connecting passage after passing through the heat exchanger.Type: ApplicationFiled: March 28, 2001Publication date: December 6, 2001Inventor: Yukio Kawasaki
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Patent number: 5857337Abstract: A turbocharger incorporates a turbine rotor, a housing having defined therein a turbine housing portion in which the turbine rotor rotated by exhaust gas is disposed, a shaft rotatably supported on the bearing housing portion via a bearing, a compressor rotor fixed to a second end of the shaft, a bypass passage formed on the turbine housing portion so as to communicatively connect an exhaust gas inlet and an exhaust gas outlet of the housing while bypassing the turbine rotor, a waste gate valve disposed in the bypass passage and operatively positioned to open or close the bypass passage in response to a boost pressure, and a nozzle member fixedly positioned with the exhaust gas outlet of the housing such that a first end of the nozzle member is adjacent to the turbine rotor while maintaining a predetermined clearance therefrom and a second end of the nozzle member defines an opening of an exhaust gas outlet side of the bypass passage oriented along the direction of the main flow of the exhaust gas dischargedType: GrantFiled: February 26, 1997Date of Patent: January 12, 1999Assignee: Aisin Seiki Kabushiki KaishaInventor: Yukio Kawasaki
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Patent number: 4735596Abstract: A boot with a bellows interposed between a large-diameter ring and a small-diameter ring is disclosed. In the bellows, the crest which is the closest to the small-diameter ring is made thinner than the other crests. Accordingly, when the boot is mounted on a mechanical shaft joint, the crest closest to the small-diameter ring is folded preferentially, so that the pitches of the other crests are maintained. The other crests are not brought into contact with each other during the cross movement of the mechanical shaft joint or even if they come into contact with each other, the contact pressure reduced, and the durability is thereby enhanced.Type: GrantFiled: August 29, 1986Date of Patent: April 5, 1988Assignee: Toyoda Gosei Co., Ltd.Inventors: Mikio Ukai, Yukio Kawasaki
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Patent number: 3969885Abstract: A method for manufacturing a textured yarn from an artificial multi-filament yarn consisting of a plurality of continuous mono-filaments, by folding up the mono-filaments in multiple layers and entwining them by genuine twists to form a textured yarn which has the appearance, touch and texture resembling a spun yarn. The process is made up of the steps of spreading into individual filaments a continuous multi-filament yarn of artificial fiber, passing part or all of the spread-out filaments onto the periphery of a rapidly-rotating spindle of a conical or cylindrical shape, assembling the filaments around the spindle in the form of a sleeve constituted by thin filament layers, and continuously withdrawing the sleeve from the spindle at a speed which is lower than the feed speed of the multi-filament yarn, the sleeve being withdrawn either in a straight forward direction along the spindle axis or in a backward direction through an axially-extending passage in the spindle after being everted at the nose thereof.Type: GrantFiled: November 27, 1974Date of Patent: July 20, 1976Assignee: Toyo Boseki KKInventors: Meiji Anahara, Yukio Kawasaki, Yasuo Suzuki