Patents by Inventor Atsushi Hashimoto

Atsushi Hashimoto 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).

  • Patent number: 9556302
    Abstract: Provided is a thermoplastic resin composition having excellent weather resistance, impact resistance, and fluidity and also excellent color developing properties and residence heat stability. A graft copolymer (A) prepared by graft polymerization of a certain amount of a specific monomer (a2)onto a certain amount of composite rubber (a1) composed of a conjugated diene rubber polymer and a cross-linked acrylic ester polymer. The tetrahydrofuran-soluble portion of the composite rubber (a1) has a weight-average molecular weight of 50000 or more in terms of polystyrene and a degree of swelling in toluene of 7.0 or more, or in the composite rubber contained in the graft copolymer, the number of particles having an equivalent-circle diameter of 150 nm or less is 50% or less of the total number of the composite rubber particles.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: January 31, 2017
    Assignee: NIPPON A&L INC.
    Inventors: Takumi Miyahiro, Masanori Ito, Seiji Tamai, Fumitoshi Takeda, Kazunori Takahashi, Tomoyoshi Akiyama, Hajime Tomita, Haruki Okuno, Shunsaku Kubota, Masaaki Okada, Atsushi Hashimoto, Yoshiaki Takada, Nobuyuki Nakashima, Jiichiro Yoshida, Takayoshi Fujiwara, Shouta Kosaka
  • Patent number: 9547090
    Abstract: An X-ray computed tomography apparatus according to an embodiment includes an X-ray detector that includes a first semiconductor chip including a plurality of elements configured to convert X-rays into an electrical signal, a substrate configured to collect the electrical signal from each element, a second semiconductor chip that is provided between the first semiconductor chip and the substrate and is formed of the same material as that of the first semiconductor chip, a plurality of first electrodes configured to couple each element of the first semiconductor chip to the second semiconductor chip, and a plurality of second electrodes that are configured to couple the second semiconductor chip to the substrate and are larger than the first electrodes. The second semiconductor chip wires the first electrodes and the second electrodes on a one-to-one basis.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: January 17, 2017
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Keiji Matsuda, Shuya Nambu, Takaya Umehara, Atsushi Hashimoto, Takashi Kanemaru, Akira Nishijima, Koichi Miyama, Tomoe Sagoh
  • Publication number: 20160331243
    Abstract: Disclosed are a probe for photoacoustic measurement which can suppress generation of artifacts obstructive to signal observation in a photoacoustic measurement, and a photoacoustic measurement apparatus including the same. The probe for photoacoustic measurement includes a light emission unit which emits measurement light to a subject, and an acoustic wave detection unit which detects a photoacoustic wave generated in the subject by the emission of measurement light. An emission end surface of the light emission unit is positioned to a side where the acoustic wave detection unit is located, with respect to a contact plane of the probe, and an optical axis at the emission end surface is inclined to a side opposite to the side on which the acoustic wave detection unit is positioned with respect to a normal direction of a detection surface of the acoustic wave detection unit.
    Type: Application
    Filed: July 27, 2016
    Publication date: November 17, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Kaku IRISAWA, Atsushi HASHIMOTO
  • Publication number: 20160324423
    Abstract: Disclosed are a photoacoustic measurement apparatus capable of improving ease of observation of a photoacoustic image even if an artifact is caused by a photoacoustic wave generated in a surface portion of a subject, and a signal processing device and a signal processing method for use therein. The photoacoustic measurement apparatus includes a probe having a light emission unit and an acoustic wave detection unit provided in parallel with the light emission unit, an image generation unit which generates a photoacoustic image based on a photoacoustic wave detected by the acoustic wave detection unit, and a display processing unit which subjects the photoacoustic image to display processing for clarifying in the photoacoustic image an observation region from a position corresponding to a subject surface to an observable depth according to the interval between a reaching region on a contact plane of measurement light and the acoustic wave detection unit.
    Type: Application
    Filed: July 15, 2016
    Publication date: November 10, 2016
    Applicant: FUJIFILM Corporation
    Inventors: Kaku IRISAWA, Atsushi HASHIMOTO
  • Patent number: 9480446
    Abstract: An X-ray detection submodule, comprising: a substrate; a photodiode mounted on the substrate; an X-ray detection element configured to detect an X-ray and convert the X-ray into light; and a light waveguide provided between the photodiode and the X-ray detection element, wherein the light waveguide connects the X-ray detection element with the photodiode such that the substrate is inclinedly disposed with respect to an X-ray detection surface of the X-ray detection element.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: November 1, 2016
    Assignee: TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Atsushi Hashimoto, Akira Nishijima, Shuya Nambu, Yoji Kudo, Masahiko Yamazaki, Tomonori Asada
  • Publication number: 20160316552
    Abstract: A cyclotron includes a pole; a superconductive coil wound so as to cover an outer periphery of the pole; a coil support that supports the superconductive coil; a cooling part that cools the superconductive coil; a first support that is connected to the coil support and is capable of adjusting a position of the coil support in a direction of a winding central axis of the superconductive coil; and a second support that is connected to the coil support and is capable of adjusting the position of the coil support in an orthogonal direction orthogonal to the direction of the winding central axis of the superconductive coil. The second support has a link mechanism that is displaceable in each of the direction of the winding central axis and the orthogonal direction.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 27, 2016
    Inventor: Atsushi Hashimoto
  • Patent number: 9449632
    Abstract: A method for manufacturing a magnetic recording medium including at least a non-magnetic substrate, a soft magnetic underlayer, an orientation control layer that controls an orientation of an immediate upper layer, and a perpendicular magnetic layer in which a magnetization easy axis is mainly perpendicularly oriented with respect to the non-magnetic substrate so as to be laminated one another on the non-magnetic substrate. The perpendicular magnetic layer includes two or more magnetic layers, and each layer is subjected to a crystal growth such that each crystal grain composing each magnetic layer forms a columnar crystal continuous in a thickness direction together with the crystal grains composing the orientation control layer. The orientation control layer, formed of a Co—Cr alloy, is formed by the reactive sputtering using a mixture of a sputtering gas and nitrogen.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: September 20, 2016
    Assignee: SHOWA DENKO K.K.
    Inventors: Toshikazu Irisawa, Atsushi Hashimoto
  • Patent number: 9413072
    Abstract: In a lower-side-columnar-conductor installing process, a first columnar sub-conductor (2), a second columnar sub-conductor (3), and a first main columnar conductor (1) are set up individually, and the first main columnar conductor (1) is disposed between the first columnar sub-conductor (2) and the second columnar sub-conductor (3). In a U-shaped-conductor fastening process, the upper-side end portion of the first columnar sub-conductor (2) is arranged facing one end of a U-shaped conductor (7) bent in a U-shape, the upper-side end portion of the second columnar sub-conductor (3) is arranged facing the other end of the U-shaped conductor (7), and the center portion of the U-shaped conductor (7) is fastened to the tip portion of a second main columnar conductor (4).
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: August 9, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Takeshi Yamamoto, Atsushi Hashimoto, Hiroyuki Takeuchi, Junji Takaki
  • Publication number: 20160219686
    Abstract: According to one embodiment, the X-ray computed tomography apparatus includes an X-ray tube, a rotating frame, a plurality of detector elements, a plurality of DAS elements, switching circuitry, and switching control circuitry. The X-ray tube generates X-rays. The X-ray tube is attached to the rotating frame. The plurality of detector elements detect X-rays. The plurality of DAS elements perform signal processing on output signals from the plurality of detector elements. The switching circuitry is provided between the plurality of detector elements and the plurality of DAS elements. The switching control circuitry controls the switching circuitry to switch the connections between the plurality of detector elements and the plurality of DAS elements for every rotation of the rotating frame at a predetermined angle.
    Type: Application
    Filed: January 13, 2016
    Publication date: July 28, 2016
    Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems Corporation
    Inventors: Michito NAKAYAMA, Atsushi HASHIMOTO, Tomoe SAGOH, Takaya UMEHARA, Shuya NAMBU, Koichi MIYAMA, Takashi KANEMARU, Keiji MATSUDA, Machiko ISO
  • Patent number: 9354331
    Abstract: According to one embodiment, an X-ray computed tomography apparatus includes an X-ray tube, a detector, a first DAS, and a second DAS. The radiation detector includes a plurality of detection elements. Each detection element repeatedly detects X-rays generated by the X-ray tube and transmitted through a subject and repeatedly generates an electrical signal corresponding to the energy of the repeatedly detected X-rays. The first DAS acquires the electrical signal detected by part of the imaging region of each detection element in the integral mode. The second DAS acquires the electrical signal detected by the other part of the imaging region of each detection element in the photon count type mode.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: May 31, 2016
    Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Medical Systems Corporation
    Inventors: Tomoe Sagoh, Michito Nakayama, Keiji Matsuda, Shuya Nambu, Atsushi Hashimoto, Takashi Kanemaru
  • Publication number: 20160033657
    Abstract: An X-ray computed tomography apparatus according to an embodiment includes an X-ray detector that includes a first semiconductor chip including a plurality of elements configured to convert X-rays into an electrical signal, a substrate configured to collect the electrical signal from each element, a second semiconductor chip that is provided between the first semiconductor chip and the substrate and is formed of the same material as that of the first semiconductor chip, a plurality of first electrodes configured to couple each element of the first semiconductor chip to the second semiconductor chip, and a plurality of second electrodes that are configured to couple the second semiconductor chip to the substrate and are larger than the first electrodes. The second semiconductor chip wires the first electrodes and the second electrodes on a one-to-one basis.
    Type: Application
    Filed: July 17, 2015
    Publication date: February 4, 2016
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Keiji MATSUDA, Shuya NAMBU, Takaya UMEHARA, Atsushi HASHIMOTO, Takashi KANEMARU, Akira NISHIJIMA, Koichi MIYAMA, Tomoe SAGOH
  • Patent number: 9245563
    Abstract: Provided is a magnetic recording medium which maintains high vertical orientation of a vertical magnetic layer, and which is capable of realizing high recording densification. In the magnetic recording medium, at least a soft magnetic underlying layer (30), seed layers (31, 32), an orientation control layer (33), and a vertical magnetic layer are laminated in this order on the non-magnetic substrate. The soft magnetic underlying layer (30) has an amorphous or microcrystalline structure. The seed layers (31, 32) include a first seed layer (31) formed from a metal oxide or a metal nitride, and a second seed layer (32) which is formed on the first seed layer and is formed from a metal formed with an island-shape or a net shape. In the orientation control layer (33) and the vertical magnetic layer, respective crystal grains constitute columnar crystals that are continuous in a thickness direction based on the second seed layer (32).
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: January 26, 2016
    Assignee: SHOWA DENKO K.K.
    Inventor: Atsushi Hashimoto
  • Publication number: 20160006128
    Abstract: In a lower-side-columnar-conductor installing process, a first main columnar conductor (2), a second columnar sub-conductor (3), and a first main columnar conductor (1) are set up individually, and the first main columnar conductor (1) is disposed between the first main columnar conductor (2) and the second columnar sub-conductor (3). In a U-shaped-conductor fastening process, the upper-side end portion of the first columnar sub-conductor (2) is arranged facing one end of a U-shaped conductor (7) bent in a U-shape, the upper-side end portion of the second columnar sub-conductor (3) is arranged facing the other end of the U-shaped conductor (7), and the center portion of the U-shaped conductor (7) is fastened to the tip portion of a second main columnar conductor (4).
    Type: Application
    Filed: February 13, 2014
    Publication date: January 7, 2016
    Applicant: Mitsubishi Electric Corporation
    Inventors: Takeshi YAMAMOTO, Atsushi HASHIMOTO, Hiroyuki TAKEUCHI, Junji TAKAKI
  • Publication number: 20150226861
    Abstract: An X-ray computer-tomography (CT) apparatus includes an X-ray detector, a reading unit, and a read control unit. The X-ray detector has a first region and a second region at least a part of which is aligned with the first region along a channel direction, the first region in which a plurality of first detection devices that detect X-rays are arranged, the second region in which a plurality of second detection devices having a width smaller in a slice direction than that of the first detection device are arranged. The reading unit reads a signal of the X-rays detected. The read control unit adjusts timing of reading signals from the first detection device and the second detection device according to difference between the size of the first and the second detection device in such a manner that time difference in the reading signals in the slice direction decreases.
    Type: Application
    Filed: February 6, 2015
    Publication date: August 13, 2015
    Applicants: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Shuya NAMBU, Takayuki YAMAZAKI, Keiji MATSUDA, Machiko ISO, Atsushi HASHIMOTO, Akira NISHIJIMA, Takashi KANEMARU, Koichi MIYAMA, Takaya UMEHARA
  • Patent number: 9014329
    Abstract: An X-ray CT apparatus includes an X-ray source configured to generate an X-ray; a scintillator configured to convert the X-ray into a fluorescent; a substrate including a plurality of photosensitive elements configured to convert the fluorescent into an electric charge; a temperature sensor formed on the surface of the substrate; a heat element formed on the surface of the substrate; and a controller configured to control a temperature of the photodiode by adjusting an electric current of the heat element.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: April 21, 2015
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Medical Systems Corporation
    Inventors: Tomoe Sagoh, Takayuki Yamazaki, Michito Nakayama, Atsushi Hashimoto, Takeshi Miyagi
  • Patent number: 8968526
    Abstract: There are provided a method for manufacturing a magnetic recording medium which is excellent in terms of both the recording and reproduction characteristics and the thermal fluctuation characteristics without reducing the density and hardness of the perpendicular magnetic layer; a magnetic recording medium; and a magnetic recording and reproducing apparatus with which an excellent recording density is achieved, wherein, in the method for manufacturing the magnetic recording medium, at least a portion of the perpendicular magnetic layer 4 is formed as a magnetic layer having a granular structure that contains Co as a major component and also contains an oxide of at least one nonmagnetic metal selected from the group consisting of Cr, Si, Ta, Al, Ti, W and Mg; a target for forming the perpendicular magnetic layer 4 by the sputtering process is prepared so as to include an oxide of Co and a compound of Co and at least one nonmagnetic metal selected from the group consisting of Cr, Si, Ta, Al, Ti, W and Mg, an
    Type: Grant
    Filed: January 22, 2010
    Date of Patent: March 3, 2015
    Assignees: Showa Denko K.K., Kabushiki Kaisha Toshiba, Tohoku University
    Inventors: Shingo Sasaki, Shin Saito, Migaku Takahashi, Atsushi Hashimoto, Yuzo Sasaki, Gohei Kurokawa, Tomoyuki Maeda, Akihiko Takeo
  • Patent number: 8836205
    Abstract: A cyclotron includes a superconductive coil that is disposed in a vacuum vessel, a cooling unit that cools the superconductive coil, a basic support member that is installed in the vacuum vessel and supports the superconductive coil in the vacuum vessel, and a support member for quenching that is fixed to one of the superconductive coil and the vacuum vessel and forms a predetermined gap with the other thereof.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: September 16, 2014
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventor: Atsushi Hashimoto
  • Publication number: 20140233690
    Abstract: An X-ray detection submodule, comprising: a substrate; a photodiode mounted on the substrate; an X-ray detection element configured to detect an X-ray and convert the X-ray into light; and a light waveguide provided between the photodiode and the X-ray detection element, wherein the light waveguide connects the X-ray detection element with the photodiode such that the substrate is inclinedly disposed with respect to an X-ray detection surface of the X-ray detection element.
    Type: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATION
    Inventors: Atsushi HASHIMOTO, Akira Nishijima, Shuya Nambu, Yoji Kudo, Masahiko Yamazaki, Tomonori Asada
  • Patent number: 8767916
    Abstract: An X-ray imaging apparatus comprises a first grid, a second grid, and an X-ray image detector. The first grid passes X-rays emitted from an X-ray source and produces a first periodic pattern image. The second grid opposes the first grid. The second grid partly blocks the first periodic pattern image and produces a second periodic pattern image with moiré fringes. The X-ray image detector detects the second periodic pattern image and produces image data. The X-ray image detector has pixels arranged in two dimensions in X and Y directions. The M pixels arranged in the Y direction form one group. The group is shifted in the Y direction by the number of the pixels less than M each time. A phase of an intensity modulated signal, composed of pixel values of the pixels in the each shifted group, is calculated. Thereby a differential phase image is produced.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: July 1, 2014
    Assignee: FUJIFILM Corporation
    Inventors: Atsushi Hashimoto, Takuji Tada, Dai Murakoshi
  • Patent number: D756818
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: May 24, 2016
    Assignee: FUJIFILM CORPORATION
    Inventors: Atsushi Hashimoto, Kaku Irisawa