Patents by Inventor Takayuki Kuwahara
Takayuki Kuwahara 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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Publication number: 20170333002Abstract: A support apparatus comprises processing circuitry. The processing circuitry is configured to calculate, based on an irradiation plan with radiation on a target site of a subject, a recommendation degree of disposition of an ultrasonic probe configured to scan the target site at irradiation with the radiation, for each position in the subject. And the processing circuitry is configured to notify an operator of the recommendation degree in association with a position in the subject.Type: ApplicationFiled: May 8, 2017Publication date: November 23, 2017Applicant: Toshiba Medical Systems CorporationInventors: Satoru OHISHI, Takayuki KUWAHARA
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Publication number: 20170239785Abstract: A method for manufacturing a compressor scroll that appropriately impinges cavitation bubbles on target regions of a scroll. The method includes the step of water jet peening by jetting cavitation bubbles generated underwater by a water jet at a first side of an end plate (13A) of the scroll (13), with a center (P1, P2, P3) of the cavitation bubbles being offset from a center (O) of the spiral shape of a wall portion (13B) on the end plate (13A) and the step portion (13Aa) and the stepped portion (13Ba) positioned at an outer peripheral portion of the cavitation bubbles (C).Type: ApplicationFiled: August 6, 2015Publication date: August 24, 2017Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.Inventors: Takayuki HAGITA, Takaharu MAEGUCHI, Masafumi HAMASAKI, Yukio MICHISHITA, Yukihiro KAWAI, Hiroshi OGAWA, Makoto TAKEUCHI, Kazuhide WATANABE, Takayuki KUWAHARA, Masaki KAWASAKI, Katsuhiro FUJITA
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Patent number: 9732753Abstract: In a stepped scroll compressor, inclined surfaces (28, 29) of which heights are gradually reduced toward stepped portions are formed in a range W of at least 2? to 3? (here, ? denotes a turning radius of a turning scroll) at (1) any one or both of inner peripheral end portions of high top lands (14H, 15H) of both scrolls and inner peripheral end portions of low bottom lands (14J, 15J) of the opposite scrolls corresponding to the inner peripheral end portions and (2) any one or both of outer peripheral end portions of high bottom lands (14K, 15K) of both the scrolls and outer peripheral end portions of low top lands (14I, 15I) of the opposite scrolls corresponding to the outer peripheral end portions, on the stepped portions (14F, 15F and 14G, 15G) of the top and bottom lands.Type: GrantFiled: December 6, 2012Date of Patent: August 15, 2017Assignee: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.Inventors: Hirofumi Hirata, Takayuki Kuwahara, Hiroshi Yamazaki
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Publication number: 20160294356Abstract: An AT-cut crystal element is provided. The AT-cut crystal element includes side surfaces intersecting with a Z?-axis of a crystallographic axis of a crystal. At least one side surface of the side surfaces is constituted of three surfaces of a first surface to a third surface. Besides, a crystal resonator including the AT-cut crystal element, and a crystal unit including the crystal resonator are provided.Type: ApplicationFiled: March 31, 2016Publication date: October 6, 2016Applicant: NIHON DEMPA KOGYO CO., LTD.Inventors: Takayuki KUWAHARA, Kenji SHIMAO, Hirokazu IWATA
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Patent number: 9366253Abstract: In a scroll compressor of the present invention, tip seals and are fitted in tip seal grooves provided in higher and lower tip surfaces of spiral wraps. One end of the tip seals then repeats contact and non-contact with a bottom land of the other scroll by a revolution in an orbiting manner of an orbiting scroll. In addition, a projection extending in a vertical direction from a back surface of the tip seals is provided at one end of the tip seals that become in a cantilever state. Furthermore, a hole in which the projection is fitted and engaged is formed in one end bottom surface of the tip seal grooves in which the tip seals are fitted.Type: GrantFiled: March 18, 2013Date of Patent: June 14, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS, CO., LTD.Inventors: Hirofumi Hirata, Takayuki Kuwahara
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Patent number: 9216302Abstract: According to one embodiment, a radiotherapy apparatus generates counting data as a count value of photons included in a preset energy region based on an output signal from an observation detector. The radiotherapy apparatus generates medical image data based on the counting data.Type: GrantFiled: August 15, 2013Date of Patent: December 22, 2015Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems CorporationInventors: Takayuki Kuwahara, Takuzo Takayama
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Publication number: 20140308146Abstract: In a stepped scroll compressor, inclined surfaces (28, 29) of which heights are gradually reduced toward stepped portions are formed in a range W of at least 2? to 3? (here, ? denotes a turning radius of a turning scroll) at (1) any one or both of inner peripheral end portions of high top lands (14H, 15H) of both scrolls and inner peripheral end portions of low bottom lands (14J, 15J) of the opposite scrolls corresponding to the inner peripheral end portions and (2) any one or both of outer peripheral end portions of high bottom lands (14K, 15K) of both the scrolls and outer peripheral end portions of low top lands (14I, 15I) of the opposite scrolls corresponding to the outer peripheral end portions, on the stepped portions (14F, 15F and 14G, 15G) of the top and bottom lands.Type: ApplicationFiled: December 6, 2012Publication date: October 16, 2014Applicant: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.Inventors: Hirofumi Hirata, Takayuki Kuwahara, Hiroshi Yamazaki
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Patent number: 8714950Abstract: A scroll compressor is provided that can reliably prevent a situation in which a product whose performance is degraded due to misassembly of a tip seal is shipped. In the scroll compressor, tip seals of different lengths are embedded in tip surfaces of a fixed spiral wrap of a fixed scroll and an orbiting spiral wrap of an orbiting scroll. Among the tip seals, thicknesses of the shorter tip seals are made thicker than thicknesses of the longer tip seals, and depths of seal grooves in which the tip seals are embedded, respectively, are formed to different depths in correspondence with the thicknesses of the respective tip seals.Type: GrantFiled: May 14, 2010Date of Patent: May 6, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Tomohisa Moro, Norio Hioki, Koji Terasaki, Koryo Shibahara, Tetsuzo Ukai, Katsuhiro Fujita, Takayuki Kuwahara
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Publication number: 20130329856Abstract: According to one embodiment, a radiotherapy apparatus generates counting data as a count value of photons included in a preset energy region based on an output signal from an observation detector. The radiotherapy apparatus generates medical image data based on the counting data.Type: ApplicationFiled: August 15, 2013Publication date: December 12, 2013Applicants: Toshiba Medical Systems Corporation, Kabushiki Kaisha ToshibaInventors: Takayuki KUWAHARA, Takuzo TAKAYAMA
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Patent number: 8403655Abstract: A scroll compressor that suffers no decrease in compression performance due to leakage resulting from a twisting assembly error is provided. This scroll compressor includes a fixed scroll and an orbiting scroll, each including a spiral wrap protruding from an end plate and having the same tooth thickness (Tr) and the same base-circle radius (b) defining an involute surface. The fixed scroll and the orbiting scroll are offset from each other by an orbiting radius (?) and mesh such that the respective wraps face each other with a phase shift of 180°. The orbiting scroll revolves/orbits along a circular orbit with the orbiting radius (?) to compress a gas while a rotation-preventing mechanism prevents rotation of the orbiting scroll.Type: GrantFiled: June 28, 2011Date of Patent: March 26, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Takayuki Kuwahara, Tetsuzou Ukai, Katsuhiro Fujita, Kazuhide Watanabe, Tomohisa Moro
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Patent number: 8313317Abstract: Provided is a scroll fluid machine that, by using a crankshaft manufactured by cold forging and a needle bearing, can sufficiently exhibit the performance of a variable circling radius mechanism, can provide a sufficient reliability on a bearing portion of the crankshaft, and can be manufactured inexpensively. For this purpose, in a crankshaft 60 used for a driving force transmission system, a reinforced shaft unit 63 and a circular column-like large diameter unit 61 are formed at an end of a rotating shaft 16, a material is produced by a cold forging process so that an eccentric shaft 62 projects from the circular column-like large diameter unit 61, the circular column-like large diameter unit 61 is rotatably coupled to a housing 11 via a needle bearing 64, and the variable circling radius mechanism is stably operated with rigidity increased by the reinforced shaft unit 63.Type: GrantFiled: November 29, 2007Date of Patent: November 20, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Hiroshi Yamazaki, Makoto Takeuchi, Tetsuzou Ukai, Kazuhide Watanabe, Tomohisa Moro, Katsuhiro Fujita, Takayuki Kuwahara, Takamitsu Himeno
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Patent number: 8308461Abstract: To provide a scroll compressor capable of reducing a noise occurring in a pin-and-ring type self rotation preventing mechanism and improving compression performance. In a scroll compressor comprising: a fixed scroll member and a revolving scroll member; a driven crank mechanism for driving the revolving scroll member to revolutionary turn; and a pin-and-ring type self rotation preventing mechanism provided in plural places for preventing self rotation of a revolving scroll member, at least one of the self rotation preventing pin, the self rotation preventing ring and the self rotation preventing ring hole, which form the pin-and-ring type self rotation preventing mechanism, is provided with an orbit correction part for reducing a maximum displacement R in a direction of self rotation of the revolving scroll member to smooth a change of an orbit of the revolving scroll member in changing a pin and a ring in a section of prevention of self rotation by means of a corresponding pin and ring part.Type: GrantFiled: November 14, 2008Date of Patent: November 13, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Takayuki Kuwahara, Tetsuzou Ukai, Katsuhiro Fujita, Takahide Ito, Makoto Takeuchi, Norio Hioki, Hideshi Hamamura, Koji Terasaki
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Patent number: 8152501Abstract: In a scroll compressor configured to be capable of three-dimensional compression in a circumferential direction and a height direction of spiral wraps, in which top surfaces and bottom surfaces of spiral wraps (25B and 27B) are provided with step portions (25E and 27E) and the wrap height on the outer peripheral side of the step portion is made higher than the wrap height on the inner peripheral side, back-pressure introducing portions (55 and 57) where gaps between the back surfaces at step-portion ends of tip seals and groove bottom surfaces of tip seal grooves are made larger than a gap at the other portion are formed between the step-portion ends of tip seals (51 and 53) provided on top surfaces (25G and 27G) on the outer peripheral side of the spiral wraps and tip seal grooves (25L and 27L) to which the tip seals are fitted.Type: GrantFiled: September 18, 2008Date of Patent: April 10, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Katsuhiro Fujita, Tomohisa Moro, Hirohumi Hirata, Masahiro Ohta, Kazuhide Watanabe, Takayuki Kuwahara, Makoto Takeuchi, Tetuzou Ukai
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Publication number: 20110286871Abstract: A scroll compressor is provided that can reliably prevent a situation in which a product whose performance is degraded due to misassembly of a tip seal is shipped. In the scroll compressor, tip seals of different lengths are embedded in tip surfaces of a fixed spiral wrap of a fixed scroll and an orbiting spiral wrap of an orbiting scroll. Among the tip seals, thicknesses of the shorter tip seals are made thicker than thicknesses of the longer tip seals, and depths of seal grooves in which the tip seals are embedded, respectively, are formed to different depths in correspondence with the thicknesses of the respective tip seals.Type: ApplicationFiled: May 14, 2010Publication date: November 24, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Tomohisa Moro, Norio Hioki, Koji Terasaki, Koryo Shibahara, Tetsuzo Ukai, Katsuhiro Fujita, Takayuki Kuwahara
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Publication number: 20110256010Abstract: A scroll compressor that suffers no decrease in compression performance due to leakage resulting from a twisting assembly error is provided. This scroll compressor includes a fixed scroll and an orbiting scroll, each including a spiral wrap protruding from an end plate and having the same tooth thickness (Tr) and the same base-circle radius (b) defining an involute surface. The fixed scroll and the orbiting scroll are offset from each other by an orbiting radius (?) and mesh such that the respective wraps face each other with a phase shift of 180°. The orbiting scroll revolves/orbits along a circular orbit with the orbiting radius (?) to compress a gas while a rotation-preventing mechanism prevents rotation of the orbiting scroll.Type: ApplicationFiled: June 28, 2011Publication date: October 20, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Takayuki Kuwahara, Tetsuzou Ukai, Katsuhiro Fujita, Kazuhide Watanabe, Tomohisa Moro
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Patent number: 8038421Abstract: A scroll compressor includes a fixed scroll and an orbiting scroll, each including a spiral wrap protruding from an end plate and having the same tooth thickness (Tr) and the same base-circle radius (b) defining an involute surface. The fixed scroll and the orbiting scroll are offset from each other by an orbiting radius (?) and mesh such that the respective wraps face each other with a phase shift of 180°. The orbiting scroll revolves/orbits along a circular orbit with the orbiting radius (?) to compress a gas while a rotation-preventing mechanism prevents rotation of the orbiting scroll. The relationship between the involute surfaces of the spiral wraps of the two scrolls and the dimensions, dimensional tolerance, and assembly standards of the rotation-preventing mechanism are determined so that the median value of an allowable angle of rotation (?) agrees with an upright position of the orbiting scroll.Type: GrantFiled: February 4, 2008Date of Patent: October 18, 2011Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Takayuki Kuwahara, Tetsuzou Ukai, Katsuhiro Fujita, Kazuhide Watanabe, Tomohisa Moro
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Patent number: 7905716Abstract: A scroll compressor includes an orbiting scroll engaged with a front case by pins and rings or ring holes to prevent rotation of the orbiting scroll. The rings or the ring holes have such an inside diameter that an orbiting radius defined by the pins and the rings or the ring holes is larger than a theoretical orbiting radius defined by engagement between gear surfaces of a fixed scroll and the orbiting scroll. The pins, the rings, or the ring holes are shifted in such a direction as to relieve twisting of the orbiting scroll relative to the fixed scroll.Type: GrantFiled: February 16, 2007Date of Patent: March 15, 2011Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Makoto Takeuchi, Takahide Ito, Hiroshi Yamazaki, Tetsuzou Ukai, Kazuhide Watanabe, Katsuhiro Fujita, Tomohisa Moro, Takayuki Kuwahara
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Patent number: 7771789Abstract: A method of forming a mask, in which a film pattern is formed on a substrate by using a mask, includes sequentially arranging the mask, the substrate and a first member having a flat surface contacting with the substrate in this order from a supply source of film forming material; and attracting the mask and the first member by means of a magnetic force.Type: GrantFiled: January 4, 2006Date of Patent: August 10, 2010Assignee: Seiko Epson CorporationInventors: Shinichi Yotsuya, Hiroshi Koeda, Takayuki Kuwahara, Tadayoshi Ikehara
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Patent number: 7754274Abstract: A mask includes a substrate which includes a front side and a back side and is provided with through-holes; and a film which adjusts a shape of the substrate provided above at least one of the front side and the back side of the substrate. A method of manufacturing a mask includes the steps of: providing a substrate having a front side and a back side; forming a film which adjusts a shape of the substrate above at least one of the front side and the back side of the substrate; and drilling through-holes in the substrate.Type: GrantFiled: November 11, 2004Date of Patent: July 13, 2010Assignee: Seiko Epson CorporationInventors: Takayuki Kuwahara, Shinichi Yotsuya
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Publication number: 20100172781Abstract: To provide a scroll compressor capable of reducing a noise occurring in a pin-and-ring type self rotation preventing mechanism and improving compression performance. In a scroll compressor comprising: a fixed scroll member and a revolving scroll member; a driven crank mechanism for driving the revolving scroll member to revolutionary turn; and a pin-and-ring type self rotation preventing mechanism provided in plural places for preventing self rotation of a revolving scroll member, at least one of the self rotation preventing pin, the self rotation preventing ring and the self rotation preventing ring hole, which form the pin-and-ring type self rotation preventing mechanism, is provided with an orbit correction part for reducing a maximum displacement R in a direction of self rotation of the revolving scroll member to smooth a change of an orbit of the revolving scroll member in changing a pin and a ring in a section of prevention of self rotation by means of a corresponding pin and ring part.Type: ApplicationFiled: November 14, 2008Publication date: July 8, 2010Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Takayuki Kuwahara, Tetsuzou Ukai, Katsuhiro Fujita, Takahide Ito, Makoto Takeuchi, Norio Hioki, Hideshi Hamamura, Koji Terasaki