Patents by Inventor Masaaki Ukita
Masaaki Ukita 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: 9887061Abstract: This X-ray tube device includes an anode and a cathode including an emitter emitting an electron to the anode. The emitter includes an electron emission portion in a flat plate shape, a pair of terminal portions extending from the electron emission portion, connected to an electrode, and a supporting portion provided separately from the terminal portions, insulated from the electrode, supporting the electron emission portion.Type: GrantFiled: September 12, 2012Date of Patent: February 6, 2018Assignee: SHIMADZU CORPORATIONInventors: Takumi Kobayashi, Masaaki Ukita
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Patent number: 9437390Abstract: An X-ray tube device according to the present invention includes a cathode generating an electron beam, an anode generating an X-ray by collision of the electron beam from the cathode, an envelope internally housing the cathode and the anode, a magnetic field generator including a magnetic pole arranged to be opposed to the envelope, generating a magnetic field for focusing and deflecting the electron beam from the cathode to the anode, and an electric field relaxing electrode arranged between the magnetic pole and the envelope, having an outer surface having a rounded shape. Thus, the magnetic field generator can be placed closer to the envelope while a tip end of the magnetic field generator is suppressed from being a discharge start point, and hence the effect of being capable of downsizing the X-ray tube device is achieved.Type: GrantFiled: October 22, 2012Date of Patent: September 6, 2016Assignee: SHIMADZU CORPORATIONInventors: Sadamu Tomita, Masaaki Ukita
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Publication number: 20160254116Abstract: A metal including a passivation film 33a with a thickness of 10 nm or more is used as a metal electrode (a focus cup electrode 33) for generating an electric filed in a vacuum. The focus cup electrode 33 is made of stainless steel. The stainless steel is immersed in a treatment solution to perform coating (passivation treatment) . Accordingly, the passivation film 33a can be formed to be thicker than 10 nm. In this manner, the passivation film 33a is thicker than 10 nm. Therefore, the surface is uniform, and the adhesion is excellent, and the number of pinholes is small. Accordingly, the withstand voltage performance can be improved.Type: ApplicationFiled: November 19, 2014Publication date: September 1, 2016Inventors: Masaaki Ukita, Takuro Izumi, Yusuke Koga
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Patent number: 9283995Abstract: A dashboard upper panel is provided with: a front vertical wall extending substantially vertically in a vehicle top/bottom direction; a horizontal bottom wall extending substantially horizontally in a vehicle front/rear direction from the front vertical wall; a rear inclined wall extending from the horizontal bottom wall toward the rear of the vehicle and diagonally toward the top of the vehicle; a front horizontal flange extending from the front vertical wall toward the front of the vehicle; and a rear horizontal flange extending from the rear inclined wall toward the rear of the vehicle. A dashboard lower panel is provided with an inclined flange formed at an upper end of the dashboard lower panel. By joining the inclined flange to a lower portion of the rear inclined wall, the dashboard upper panel is supported by the dashboard lower panel from below at substantially the center in the vehicle front/rear direction.Type: GrantFiled: January 8, 2013Date of Patent: March 15, 2016Assignee: Honda Motor Co., Ltd.Inventors: Makoto Hisazumi, Harumasa Toyosawa, Hiroyoshi Horibe, Masaaki Ukita, Yoshiyuki Toba
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Publication number: 20150287565Abstract: An X-ray tube device according to the present invention includes a cathode generating an electron beam, an anode generating an X-ray by collision of the electron beam from the cathode, an envelope internally housing the cathode and the anode, a magnetic field generator including a magnetic pole arranged to be opposed to the envelope, generating a magnetic field for focusing and deflecting the electron beam from the cathode to the anode, and an electric field relaxing electrode arranged between the magnetic pole and the envelope, having an outer surface having a rounded shape. Thus, the magnetic field generator can be placed closer to the envelope while a tip end of the magnetic field generator is suppressed from being a discharge start point, and hence the effect of being capable of downsizing the X-ray tube device is achieved.Type: ApplicationFiled: October 22, 2012Publication date: October 8, 2015Applicant: SHIMADZU CORPORATIONInventors: Sadamu Tomita, Masaaki Ukita
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Publication number: 20150262782Abstract: This X-ray tube device includes an anode and a cathode including an emitter emitting an electron to the anode. The emitter includes an electron emission portion in a flat plate shape, a pair of terminal portions extending from the electron emission portion, connected to an electrode, and a supporting portion provided separately from the terminal portions, insulated from the electrode, supporting the electron emission portion.Type: ApplicationFiled: September 12, 2012Publication date: September 17, 2015Applicant: SHIMADZU CORPORATIONInventors: Takumi Kobayashi, Masaaki Ukita
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Publication number: 20150175216Abstract: A dashboard upper panel is provided with: a front vertical wall extending substantially vertically in a vehicle top/bottom direction; a horizontal bottom wall extending substantially horizontally in a vehicle front/rear direction from the front vertical wall; a rear inclined wall extending from the horizontal bottom wall toward the rear of the vehicle and diagonally toward the top of the vehicle; a front horizontal flange extending from the front vertical wall toward the front of the vehicle; and a rear horizontal flange extending from the rear inclined wall toward the rear of the vehicle. A dashboard lower panel is provided with an inclined flange formed at an upper end of the dashboard lower panel. By joining the inclined flange to a lower portion of the rear inclined wall, the dashboard upper panel is supported by the dashboard lower panel from below at substantially the center in the vehicle front/rear direction.Type: ApplicationFiled: January 8, 2013Publication date: June 25, 2015Inventors: Makoto Hisazumi, Harumasa Toyosawa, Hiroyoshi Horibe, Masaaki Ukita, Yoshiyuki Toba
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Patent number: 8439430Abstract: In a vehicle body structure, a frontal crash performance is improved by establishing a transmission path of a frontal crash load by a floor frame (28) without increasing the weight of the vehicle body, manufacturing cost or the number of welding spots. The floor frame (28) is attached to a lower surface of a floor panel (12), and extends from a rear end of a front side frame (20) from a longitudinally intermediate part of the floor panel. A rear part of the floor panel is formed with a side bead (34) extending in a fore and aft direction in alignment with the floor frame. The rear end of the floor frame is connected to the front end of the side bead via a slope section (32) of the floor panel, and the rear end of the side bead is connected to a middle cross member (18) extending laterally along the rear edge of the floor panel.Type: GrantFiled: March 30, 2011Date of Patent: May 14, 2013Assignee: Honda Motor Co., Ltd.Inventors: Yoshihiko Sato, Masaaki Ukita, Yoshiyuki Toba
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Publication number: 20110241381Abstract: In a vehicle body structure, a frontal crash performance is improved by establishing a transmission path of a frontal crash load by a floor frame (28) without increasing the weight of the vehicle body, manufacturing cost or the number of welding spots. The floor frame (28) is attached to a lower surface of a floor panel (12), and extends from a rear end of a front side frame (20) from a longitudinally intermediate part of the floor panel. A rear part of the floor panel is formed with a side bead (34) extending in a fore and aft direction in alignment with the floor frame. The rear end of the floor frame is connected to the front end of the side bead via a slope section (32) of the floor panel, and the rear end of the side bead is connected to a middle cross member (18) extending laterally along the rear edge of the floor panel.Type: ApplicationFiled: March 30, 2011Publication date: October 6, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Yoshihiko Sato, Masaaki Ukita, Yoshiyuki Toba
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Patent number: 7346148Abstract: This invention relates to a microfocus X-ray tube having a heat-dissipation solid formed on the target adhesively. Specifically, the heat-dissipation solid defining an opening is formed on the target surface irradiated with an electron beam. Heat generated adjacent the target surface by impingement of an electron beam having passed through the opening is promptly distributed by heat conduction through the surface solid. The heat-dissipation solid contributes to lowering of a surface temperature of the target layer with which the electron beam collides, and a reduction of evaporation of a material forming the target, thereby extending an X-ray generating time.Type: GrantFiled: December 28, 2006Date of Patent: March 18, 2008Assignee: Shimadzu CorporationInventor: Masaaki Ukita
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Patent number: 7305066Abstract: An X-ray generating apparatus for generating X-rays by irradiating a target with an electron beam. Wherein the apparatus includes a vibration applying means for vibrating the target in directions parallel to a surface thereof. A colliding spot of the electron beam is movable on the target while maintaining an X-ray focus in the same position on the electron beam without fluctuating the X-ray focal position. This enlarges an actual area of electron collision on the target to disperse the generated heat, thereby to suppress a local temperature rise of the target due to the electron collision. The X-ray generating apparatus is compact, and has a long life and a high X-ray intensity.Type: GrantFiled: July 17, 2003Date of Patent: December 4, 2007Assignee: Shimadzu CorporationInventor: Masaaki Ukita
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Publication number: 20070110217Abstract: This invention relates to a microfocus X-ray tube having a heat-dissipation solid formed on the target adhesively. Specifically, the heat-dissipation solid defining an opening is formed on the target surface irradiated with an electron beam. Heat generated adjacent the target surface by impingement of an electron beam having passed through the opening is promptly distributed by heat conduction through the surface solid. The heat-dissipation solid contributes to lowering of a surface temperature of the target layer with which the electron beam collides, and a reduction of evaporation of a material forming the target, thereby extending an X-ray generating time.Type: ApplicationFiled: December 28, 2006Publication date: May 17, 2007Applicant: SHIMADZU CORPORATIONInventor: Masaaki Ukita
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Patent number: 7215741Abstract: This invention relates to a microfocus X-ray tube having a heat-dissipation solid formed on the target adhesively. Specifically, the heat-dissipation solid defining an opening is formed on the target surface irradiated with an electron beam. Heat generated adjacent the target surface by impingement of an electron beam having passed through the opening is promptly distributed by heat conduction through the surface solid. The heat-dissipation solid contributes to lowering of a surface temperature of the target layer with which the electron beam collides, and a reduction of evaporation of a material forming the target, thereby extending an X-ray generating time.Type: GrantFiled: March 21, 2005Date of Patent: May 8, 2007Assignee: Shimadzu CorporationInventor: Masaaki Ukita
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Publication number: 20050213711Abstract: This invention relates to a microfocus X-ray tube having a heat-dissipation solid formed on the target adhesively. Specifically, the heat-dissipation solid defining an opening is formed on the target surface irradiated with an electron beam. Heat generated adjacent the target surface by impingement of an electron beam having passed through the opening is promptly distributed by heat conduction through the surface solid. The heat-dissipation solid contributes to lowering of a surface temperature of the target layer with which the electron beam collides, and a reduction of evaporation of a material forming the target, thereby extending an X-ray generating time.Type: ApplicationFiled: March 21, 2005Publication date: September 29, 2005Inventor: Masaaki Ukita
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Publication number: 20050207537Abstract: An X-ray generating apparatus for generating X-rays by irradiating a target with an electron beam. Wherein the apparatus includes a vibration applying means for vibrating the target in directions parallel to a surface thereof. A colliding spot of the electron beam is movable on the target while maintaining an X-ray focus in the same position on the electron beam without fluctuating the X-ray focal position. This enlarges an actual area of electron collision on the target to disperse the generated heat, thereby to suppress a local temperature rise of the target due to the electron collision. The X-ray generating apparatus is compact, and has a long life and a high X-ray intensity.Type: ApplicationFiled: July 17, 2003Publication date: September 22, 2005Inventor: Masaaki Ukita
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Patent number: 6665369Abstract: An X-ray tube (X-ray focus) and an X-ray detector opposed to each other across an object synchronously scan the object to acquire radiographic data in each scan position. The radiographic data or data resulting from a filtering process of the radiographic data is projected back to a two-dimensional or three-dimensional reconstruction area virtually set to a region of interest of the object. Reconstruction software is used for causing a computer to perform reconstruction computations for each unit area (block) formed by dividing the reconstruction area. The reconstruction computations are performed successively for one unit area (block) after another in a way optimal to cache size. Data in cache memory are reused at an increased rate, and access to data in memory is reduced to shorten a time consumed by the reconstruction computations.Type: GrantFiled: June 27, 2002Date of Patent: December 16, 2003Assignee: Shimadzu CorporationInventor: Masaaki Ukita
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Publication number: 20030185344Abstract: A multilayer target 5 is composed of a first layer 5a, a second layer 5b and a third layer 5c which are made of different materials. When an electron beam 13 is incident upon the multilayer target 5, the electron beam 13 arrives at the third layer 5c, and X-rays Xa, Xb and Xc, the radiation qualities of which are respectively suitable for the characteristics of the first layer 5a, the second layer 5b and the third layer 5c, are generated.Type: ApplicationFiled: March 28, 2002Publication date: October 2, 2003Applicant: SHIMADZU CORPORATIONInventor: Masaaki Ukita
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Patent number: 6577701Abstract: An X-ray tube (X-ray focus) and an X-ray detector opposed to each other across an object synchronously scan the object to acquire radiographic data in each scan position. A section reconstruction method is provided in which the radiographic data or data resulting from a filtering process of the radiographic data is projected as back projection data back to a two-dimensional or three-dimensional reconstruction area virtually set to a region of interest of the object. Enlarged interpolation data is generated by interpolating the back projection data and then the enlarged interpolation data is projected back to the reconstruction area without interpolation. The number of interpolation computations is reduced to an amount corresponding to the enlargement by interpolation of the back projection data, to shorten the reconstruction computation time.Type: GrantFiled: July 22, 2002Date of Patent: June 10, 2003Assignee: Shimadzu CorporationInventors: Masaaki Ukita, Taketo Kishi, Shuhei Onishi, Eiichi Shintani
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Publication number: 20030021373Abstract: An X-ray tube (X-ray focus) and an X-ray detector opposed to each other across an object synchronously scan the object to acquire radiographic data in each scan position. A section reconstruction method is provided in which the radiographic data or data resulting from a filtering process of the radiographic data is projected as back projection data back to a two-dimensional or three-dimensional reconstruction area virtually set to a region of interest of the object. Enlarged interpolation data is generated by interpolating the back projection data and then the enlarged interpolation data is projected back to the reconstruction area without interpolation. The number of interpolation computations is reduced to an amount corresponding to the enlargement by interpolation of the back projection data, to shorten the reconstruction computation time.Type: ApplicationFiled: July 22, 2002Publication date: January 30, 2003Inventors: Masaaki Ukita, Taketo Kishi, Shuhei Onishi, Eiichi Shintani
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Patent number: RE46198Abstract: In a vehicle body structure, a frontal crash performance is improved by establishing a transmission path of a frontal crash load by a floor frame (28) without increasing the weight of the vehicle body, manufacturing cost or the number of welding spots. The floor frame (28) is attached to a lower surface of a floor panel (12), and extends from a rear end of a front side frame (20) from a longitudinally intermediate part of the floor panel. A rear part of the floor panel is formed with a side bead (34) extending in a fore and aft direction in alignment with the floor frame. The rear end of the floor frame is connected to the front end of the side bead via a slope section (32) of the floor panel, and the rear end of the side bead is connected to a middle cross member (18) extending laterally along the rear edge of the floor panel.Type: GrantFiled: May 12, 2015Date of Patent: November 8, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Yoshihiko Sato, Masaaki Ukita, Yoshiyuki Toba