Patents by Inventor Masahiro Ikeda
Masahiro Ikeda 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: 9597530Abstract: A particle beam scanning irradiation system includes a computer establishing a scanning sequence for irradiation of a tumor portion in a patient; and a particle beam irradiation device irradiating the tumor portion in accordance with the established scanning sequence of the particle beam. The computer selects all conceivable combinations of pairs of irradiation spots among the plurality of irradiation spots arranged in the tumor portion, and determines whether each path for the particle beam to shift between two spots constituting the selected pair passes through the tumor portion; determines a penalty matrix expressing whether each path passes through the tumor portion on the basis of the determination result; evaluates a function for the shift paths on the basis of an optimizing algorithm, and establishes the scanning sequence of the particle beam by an optimized solution of the function.Type: GrantFiled: May 14, 2012Date of Patent: March 21, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuehu Pu, Masahiro Ikeda
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Publication number: 20170058763Abstract: An exhaust device for an engine, interposed between an engine body, and a supercharger to be driven by a pressure of exhaust gas to be discharged from the engine body, includes a first exhaust passage and a second exhaust passage which introduce exhaust gas to the supercharger; a partition wall disposed between the first exhaust passage and the second exhaust passage, and configured to partition the first exhaust passage and the second exhaust passage from each other; and a valve disposed within the second exhaust passage, and configured to adjust the flow rate of exhaust gas flowing through the second exhaust passage. The partition wall includes a communication portion for communicating between the first exhaust passage and the second exhaust passage.Type: ApplicationFiled: August 12, 2016Publication date: March 2, 2017Applicant: MAZDA MOTOR CORPORATIONInventors: Einosuke SUEKUNI, Junji UMEMURA, Shuhei TSUJITA, Makoto MIHARA, Tomoaki FUJIYAMA, Hiroyuki HAMADA, Kouji HADAMA, Masahiro IKEDA
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Publication number: 20170028219Abstract: A sub beam approximation step in which a particle beam is approximated by a collection of a plurality of sub beams having Gaussian distribution and a sub beam dose distribution calculation step in which by simulating the state in which each sub beam of a plurality of sub beams is deflected by a scanning device and travelled, each sub beam dose distribution which is formed inside a patient by each sub beam is calculated, and a dose distribution which is formed inside a patient by the particle beam is obtained by adding the each sub beam dose distribution which is calculated are comprised.Type: ApplicationFiled: April 7, 2014Publication date: February 2, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuehu PU, Yusuke SAKAMOTO, Yukiko YAMADA, Masahiro IKEDA, Hideki FUJI
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Patent number: 9528548Abstract: In a center bearing support, a plurality of bored portions corresponding to spaces passing through a rubber-like elastic body in an axial direction are provided around a shaft hole. The bored portions are constructed by a combination of inner peripheral side bored portions arranged comparatively near the shaft hole, and outer peripheral side bored portions arranged comparatively far from the shaft hole. The inner peripheral side bored portions and the outer peripheral side bored portions are alternately provided circumferentially, and are provided so as to overlap in a part circumferentially, thereby having connection portions constructed by a part of the rubber-like elastic body between the inner peripheral side bored portions and the outer peripheral side bored portions. The connection portions are extended in a direction which is inclined to both of a circumferential direction and an axially perpendicular direction as seen from one side of the axial direction.Type: GrantFiled: April 22, 2014Date of Patent: December 27, 2016Assignee: NOK CorporationInventor: Masahiro Ikeda
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Patent number: 9415934Abstract: In a transport system, overhead travelling vehicles each including a hoist travel along an overhead travelling vehicle travelling route. A local vehicle travelling route is disposed under the overhead travelling vehicle travelling route and over load ports at a position higher than the load ports. Local vehicles each including hoist travel along the local vehicle travelling route. Buffers are disposed along the local vehicle travelling route. The local vehicle travelling route includes a plurality of local vehicle travelling routes that are provided in parallel, and the local vehicles are configured to diverge and merge from one local vehicle travelling route to another local vehicle travelling route. The local vehicles transport articles between a load port and a buffer under control of a controller.Type: GrantFiled: May 14, 2014Date of Patent: August 16, 2016Assignee: MURATA MACHINERY, LTD.Inventors: Masahiro Ikeda, Masazumi Fukushima, Yasuhisa Ito
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Patent number: 9387346Abstract: A particle beam treatment system includes an accelerator system that accelerates a charged particle beam and a beam transport system that transports a high-energy beam emitted from the accelerator to an irradiation location, wherein the beam transport system is provided with at least one steering electromagnet and at least one beam position monitor corresponding to the at least one steering electromagnet, and wherein the at least one beam position monitor supplies an excitation current for correcting a beam position, which periodically varies, to the at least one steering electromagnet.Type: GrantFiled: September 21, 2012Date of Patent: July 12, 2016Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Kazushi Hanakawa, Kengo Sugahara, Shuhei Odawara, Hisashi Harada, Masahiro Ikeda, Toshihiro Otani, Taizo Honda, Katsuhisa Yoshida
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Publication number: 20160136461Abstract: In the particle beam therapy system, a beam transport system includes a beam-path changer for changing a beam path so as to transport a charged particle beam to any one of the plurality of particle beam irradiation apparatuses; and a treatment management device includes a beam-path controller that generates an emitter control signal for controlling an emitter of an accelerator and a beam-path changer control signal for controlling the beam-path changer so that, with respect to the plurality of particle beam irradiation apparatuses in which treatment is performed at the same treatment period of time, the charged particle beam is transported to each one of the plurality of particle beam irradiation apparatuses for each time period allocated thereto.Type: ApplicationFiled: November 21, 2013Publication date: May 19, 2016Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takaaki IWATA, Hisashi HARADA, Masahiro IKEDA, Yuehu PU
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Patent number: 9328772Abstract: The invention provides a center bearing support which can effectively suppress an inflow of a muddy water or the like into a center bearing side even at a time when a rotating shaft stops, without using a contact type seal such as an oil seal or the like. In a center bearing support in which an inner ring retaining a center bearing is provided in an inner periphery of an outer ring fixed to a vehicle body side via an elastic body made of a rubber-like elastic material, a rib guiding a flow of a muddy water or the like in a circumferential direction is formed on a convex surface constructed by a bellow-like bent portion of the elastic body.Type: GrantFiled: September 13, 2012Date of Patent: May 3, 2016Assignee: NOK CorporationInventor: Masahiro Ikeda
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Patent number: 9312100Abstract: In a particle beam therapy system which scans a particle beam and irradiates the particle beam to an irradiation position of an irradiation subject and has a dose monitoring device for measuring a dose of the particle beam and an ionization chamber smaller than the dose monitoring device, the ionization chamber measuring a dose of a particle beam passing through the dose monitoring device, the dose of the particle beam irradiated by the dose monitoring device is measured; the dose of the particle beam passing through the dose monitoring device is measured by the small ionization chamber; and a correction coefficient of the dose measured by the dose monitoring device corresponding to the irradiation position is found based on the dose of the particle beam measured by the small ionization chamber.Type: GrantFiled: September 5, 2014Date of Patent: April 12, 2016Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Toshihiro Otani, Hisashi Harada, Masahiro Ikeda, Kazushi Hanakawa, Taizo Honda
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Publication number: 20160084303Abstract: In a center bearing support, a plurality of bored portions corresponding to spaces passing through a rubber-like elastic body in an axial direction are provided around a shaft hole. The bored portions are constructed by a combination of inner peripheral side bored portions arranged comparatively near the shaft hole, and outer peripheral side bored portions arranged comparatively far from the shaft hole. The inner peripheral side bored portions and the outer peripheral side bored portions are alternately provided circumferentially, and are provided so as to overlap in a part circumferentially, thereby having connection portions constructed by a part of the rubber-like elastic body between the inner peripheral side bored portions and the outer peripheral side bored portions. The connection portions are extended in a direction which is inclined to both of a circumferential direction and an axially perpendicular direction as seen from one side of the axial direction.Type: ApplicationFiled: April 22, 2014Publication date: March 24, 2016Applicant: NOK CORPORATIONInventor: Masahiro IKEDA
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Patent number: 9265970Abstract: A particle beam irradiation system comprises deflection electromagnets which scan by deflecting the particle beam in two dimensions in the lateral direction which is perpendicular to an irradiation direction of the particle beam, and an energy width expanding device through which the particle beam passes so as to expand an energy width of the particle beam and form a SOBP in a depth direction of the irradiation target, that is, in an irradiation direction of the particle beam, wherein the energy width expanding device is configured to form the SOBP in the depth direction along whole irradiation area in the depth direction of the irradiation target, and the deflection electromagnets are controlled so as for an irradiation spot which is formed in the irradiation target by the particle beam to move stepwise along whole irradiation area in the lateral direction of the irradiation target.Type: GrantFiled: March 2, 2011Date of Patent: February 23, 2016Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Taizo Honda, Masahiro Ikeda
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Publication number: 20160008631Abstract: An irradiation apparatus radiates a particle beam after forming the beam for plural layers. A dose monitor measures a dose in real time. A dose evaluation unit evaluates an irradiation dose for each layer on the basis of a value measured by the dose monitor and a dose calibration factor set for each layer. An irradiation control section performs radiation control for each layer on the basis of an evaluation result of the dose evaluation unit. An interpolation value generation unit uses actual-measurement dose-calibration factors obtained by radiating a particle beam to a simulated phantom provided with a calibration dosimeter, to generate an interpolation estimation value of the dose calibration factor. For each layer subject to the interpolation value, and based on an irradiation condition of that layer, the interpolation value generation unit performs weighting on each of the actual-measurement dose-calibration factors.Type: ApplicationFiled: June 6, 2013Publication date: January 14, 2016Applicant: Mitsubishi Electric CorporationInventors: Hisashi HARADA, Masahiro IKEDA, Osamu TAKAHASHI, Nobuhiko INA, Yuehu PU, Takaaki IWATA
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Patent number: 9228320Abstract: A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; an inner circumferential wall provided on the shroud and adjacent to the outer circumference of the cooling fan; and an outer circumferential wall provided to surround the inner circumferential wall. An air-flow-direction downstream side end of an outer circumferential edge of the cooling fan is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. An angle between: an line connecting the air-flow-direction downstream side end of the inner circumferential wall to the air-flow-direction downstream side end of the outer circumferential wall in cross section along the air flow direction of the inner circumferential wall and the outer circumferential wall; and a line orthogonal to the air flow direction, is 9 degrees or more and 45 degrees or less.Type: GrantFiled: August 29, 2008Date of Patent: January 5, 2016Assignee: Komatsu Ltd.Inventors: Mitsuo Yabe, Hiroki Shinoda, Masahiro Ikeda, Tomoya Watanabe, Atsushi Kawano, Seiichi Fuchita, Yasuhiro Kusuyama, Teruyuki Matsuki
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Patent number: 9228317Abstract: A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; and a ring having an inner circumferential wall and an outer circumferential wall. The inner circumferential wall is provided on the shroud and adjacent to an outer circumference of the cooling fan. The outer circumferential wall surrounds the inner circumferential wall, and an air-flow-direction downstream side end of the outer circumferential wall is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. An air-flow-direction downstream side end of an outer circumferential edge of the cooling fan is positioned at a further downstream position in the air flow direction than the air-flow-direction downstream side end of the inner circumferential wall.Type: GrantFiled: August 29, 2008Date of Patent: January 5, 2016Assignee: Komatsu Ltd.Inventors: Mitsuo Yabe, Hiroki Shinoda, Masahiro Ikeda, Tomoya Watanabe, Atsushi Kawano, Seiichi Fuchita, Yasuhiro Kusuyama, Teruyuki Matsuki
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Patent number: 9228319Abstract: A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; an inner circumferential wall provided on the shroud and adjacent to the outer circumference of the cooling fan; and an outer circumferential wall provided to surround the inner circumferential wall. An air-flow-direction downstream side end of the outer circumferential wall is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. An air-flow-direction downstream side end of the cooling fan is positioned at a further downstream position than the air-flow-direction downstream side end of the inner circumferential wall. A ratio between a length of the outer circumferential wall and a length of the inner circumferential wall in the air flow direction is 1.07 or more and 1.81 or less, and a width between the outer circumferential wall and the inner circumferential wall is 15 mm or more and 55 mm or less.Type: GrantFiled: August 29, 2008Date of Patent: January 5, 2016Assignee: Komatsu Ltd.Inventors: Mitsuo Yabe, Hiroki Shinoda, Masahiro Ikeda, Tomoya Watanabe, Atsushi Kawano, Seiichi Fuchita, Yasuhiro Kusuyama, Teruyuki Matsuki
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Patent number: 9228318Abstract: A cooling device includes: a cooling fan; a shroud provided at an outer circumferential side of the cooling fan; an inner circumferential wall provided on the shroud and adjacent to the outer circumference of the cooling fan so as to surround the cooling fan; an outer circumferential wall provided to surround the inner circumferential wall. An air-flow-direction downstream side end of the outer circumferential wall is positioned at a further downstream position in an air flow direction than an air-flow-direction downstream side end of the inner circumferential wall. The cooling fan is rotatable within a space provided on a radially inner side of the inner circumferential wall. The air-flow-direction downstream side end of the outer circumferential wall is provided at a further upstream position in the air flow direction than an air-flow-direction downstream side end of the cooling fan.Type: GrantFiled: August 29, 2008Date of Patent: January 5, 2016Assignee: Komatsu Ltd.Inventors: Mitsuo Yabe, Hiroki Shinoda, Masahiro Ikeda, Tomoya Watanabe, Atsushi Kawano, Seiichi Fuchita, Yasuhiro Kusuyama, Teruyuki Matsuki
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Publication number: 20150360053Abstract: A particle beam irradiation system comprising a scanning electromagnet for a particle beam to scan an irradiation objective, a scanning information storage section for storing scanning position information regarding a plurality of scanning positions in a case where a particle beam scans an irradiation objective and scanning order information which is order for scanning a plurality of scanning positions, and a scanning electromagnet control section for controlling a scanning electromagnet based on scanning position information and scanning order information which is stored in the scanning information storage section, wherein the scanning position information which is stored in the scanning information storage section includes a part whose scanning position information is same as the scanning position information of adjacent order.Type: ApplicationFiled: January 22, 2013Publication date: December 17, 2015Applicant: Mitsubishi Electric CorporationInventors: Yuehu PU, Masahiro IKEDA, Taizo HONDA
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Publication number: 20150329298Abstract: A storage system in a ceiling space includes overhead traveling vehicles and a traveling route for the same, a shuttle carriage configured to transport goods to and from processing devices and a traveling route for the same, an OHT port to and from which the overhead traveling vehicles and the shuttle carriage both transport goods, and buffers that are provided in the ceiling space above the processing device and are for the placement of goods by the shuttle carriage. The traveling route for the shuttle carriage enables delivery and reception of goods by the shuttle carriage between the load port of the processing devices, the buffers, and the OHT port.Type: ApplicationFiled: May 14, 2014Publication date: November 19, 2015Applicant: MURATA MACHINERY, LTD.Inventors: Yasuhisa ITO, Masahiro IKEDA, Yuichi IMAMURA
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Publication number: 20150328483Abstract: A particle therapy apparatus has a rotating gantry configured in such a way that an irradiation device is rotated around a rotation axis and a particle beam is irradiated onto an irradiation subject; the rotating gantry is provided with an entrance-side deflection electromagnet having a deflection path for radially deflecting the particle beam supplied along the rotation axis so as to guide the particle beam to the irradiation device and a straight path that is switchable with the deflection path and is for making the supplied particle beam travel in a straight manner; there are provided trajectory correcting devices having two position sensors that are arranged along the rotation axis so as to flank the entrance-side deflection electromagnet.Type: ApplicationFiled: February 22, 2013Publication date: November 19, 2015Applicant: Mitsubishi Electric CorporationInventors: Shuhei ODAWARA, Hisashi HARADA, Masahiro IKEDA, Kengo SUGAHARA
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Patent number: D776170Type: GrantFiled: November 12, 2015Date of Patent: January 10, 2017Assignee: MIKASA SANGYO CO., LTD.Inventors: Hideo Saito, Masahiro Ikeda