Patents by Inventor Akira Matsushita

Akira Matsushita 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: 11353805
    Abstract: An image forming apparatus to form an image on a recording material includes a photosensitive member, an exposure device to form a latent image on the photosensitive member, a tubular body defining a space in which at least a part of the exposure device is contained, and a support portion that supports the exposure device and is provided along a rotation axis direction of the photosensitive member in the space of the tubular body. The image forming apparatus further includes, in the rotation axis direction, a first side plate fixed to one end portion of the tubular body, and a second side plate fixed to another end portion of the tubular body. One support portion end portion in the rotation axis direction is fixed to the first side plate, and another support portion end portion in the rotation axis direction is fixed to the second side plate.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: June 7, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shoji Yamamoto, Akira Yoshimura, Shogo Nagamine, Naoki Matsushita, Yoshihiko Tanaka, Hisanori Kobayashi, Takatoshi Tanaka, Mitsuhiro Ohta, Hiroki Katayama, Akitoshi Toyota
  • Publication number: 20220164956
    Abstract: A method for assisting in cell isolation from a biological tissue section includes: obtaining cell images that are each an image of cells isolated from the biological tissue section, the biological tissue section being soaked in a solution containing an enzyme; calculating, from the cell images, a number of the cells isolated from the biological tissue section as an indicator of the cell isolation from the biological tissue section; and visualizing a temporal change in the indicator on the basis of a history of the indicator.
    Type: Application
    Filed: February 10, 2022
    Publication date: May 26, 2022
    Applicant: OLYMPUS CORPORATION
    Inventors: Akira MATSUSHITA, Yu HIROSAWA, Taiji MINE
  • Publication number: 20220146404
    Abstract: A method for displaying cell count information includes steps for: obtaining a cell image; obtaining a first cell count output by applying the cell image to a first counting model; obtaining a second cell count output by applying the cell image to a second counting model; and displaying, on the basis of the first and second cell counts, a screen on which at least either of the first and second cell counts and a correlation between the first and second cell counts are visualized. The first counting model is different from the second counting model.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 12, 2022
    Applicant: OLYMPUS CORPORATION
    Inventors: Akira MATSUSHITA, Yu HIROSAWA, Taiji MINE, Takuma DEZAWA
  • Publication number: 20220130043
    Abstract: A method for evaluating an adherent cell includes: obtaining an image of an adherent cell accommodated within a culture container; and determining whether the adherent cell is adhering to the culture container based on at least a profile shape of a contact portion of the adherent cell that is in contact with the culture container, the profile shape being specified from the image.
    Type: Application
    Filed: January 5, 2022
    Publication date: April 28, 2022
    Applicant: OLYMPUS CORPORATION
    Inventors: Akira MATSUSHITA, Isao SAKANE, Yu HIROSAWA, Takuma DEZAWA
  • Publication number: 20220109786
    Abstract: An endoscope system includes an endoscope including an insertion unit and a sensor. The sensor is disposed at a distal end of the insertion unit. The sensor unit includes a motion sensor and a light source. The motion sensor is configured to execute a measurement operation and generate a measurement value indicating a measurement result. The light source is configured to generate light indicating the measurement operation at a timing that is synchronized with the measurement operation. The insertion unit includes an imaging device disposed at the distal end and configured to receive the light generated by the light source and generate an image.
    Type: Application
    Filed: October 4, 2021
    Publication date: April 7, 2022
    Applicant: OLYMPUS CORPORATION
    Inventors: Akira MATSUSHITA, Naoyuki MIYASHITA, Takuma DEZAWA
  • Publication number: 20220048176
    Abstract: The present invention provides an electric working machine in which a control board can be disposed without limitations based on a length of a brushless motor in a direction along an axial line. The electric working machine comprises: a brushless motor provided with a rotor and a stator; a motor case and a motor housing in which the brushless motor is stored; a control board which is provided outside of the motor housing in a radial direction of an axial line defined at the center of the rotor, and supports the switching elements; a connection board which is provided in the motor case, and supports the sensors; a through hole provided on the motor case; a through hole provided on the motor housing; and leads and signal lines extending from inside of the motor housing to the outside of the motor housing through the holes.
    Type: Application
    Filed: October 27, 2021
    Publication date: February 17, 2022
    Inventors: Hideyuki HASHIMOTO, Satoshi ABE, Shingo YAMAZAKI, Tomomasa NISHIKAWA, Akira MATSUSHITA
  • Patent number: 11232994
    Abstract: A power semiconductor device includes a circuit body, first and second insulations, first and second bases, a case, and a distance regulation portion. The circuit body incudes a semiconductor element and a conductive portion. The first insulation and the second insulation oppose each other. The first base and second base also oppose each other. The case has a first opening portion covered with the first base and a second opening portion covered with the second base. The distance regulation portion has a first end that contacts the first base and a second end, that is opposite to the first end, and that contacts the second base. The distance regulation portion regulates a distance between the first base and the second base.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: January 25, 2022
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Nobutake Tsuyuno, Hiromi Shimazu, Akihiro Namba, Akira Matsushita, Hiroshi Houzouji, Atsuo Nishihara, Toshiaki Ishii, Takashi Hirao
  • Patent number: 11226476
    Abstract: An observation apparatus including: a top plate on which a container in which a specimen is accommodated can be placed, and through which illumination light can pass; a light source that emits the illumination light upward from below the specimen; an objective lens that focuses, below the specimen and the top plate, transmitted light which is the illumination light that has passed through the specimen from thereabove and that has passed through the top plate; and a camera that captures the transmitted light, wherein the light source emits the illumination light toward an area above the specimen from outside the objective lens in a radial direction, and the top plate is provided with a mark that specifies a viewing-field area of the camera.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: January 18, 2022
    Assignee: OLYMPUS CORPORATION
    Inventors: Tsuyoshi Mochizuki, Shintaro Takahashi, Akira Matsushita, Yohei Tanikawa, Masaru Mizunaka, Shinichi Takimoto
  • Publication number: 20220013432
    Abstract: A power semiconductor device includes an insulating substrate on which a first conductor layer is arranged on one surface, a first conductor that is connected to the first conductor layer via a first connecting material, and a semiconductor element that is connected to the first conductor via a first connecting material. When viewed from a direction perpendicular to an electrode surface of the semiconductor element, the first conductor includes a peripheral portion formed larger than the semiconductor element. A first recess is formed in the peripheral portion so that a thickness of the first connecting material becomes thicker than other portions.
    Type: Application
    Filed: November 5, 2019
    Publication date: January 13, 2022
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Hiromi SHIMAZU, Yujiro KANEKO, Toru KATO, Akira MATSUSHITA, Eiichi IDE
  • Patent number: 11205820
    Abstract: In an upper cell unit (2146) and a lower cell unit (2147) comprising five battery cells, positive electrode terminals (2162, 2172) are set apart and aligned vertically, and negative electrode terminals (2167, 2177) are set apart and aligned vertically. When an electrical device body is rated at 36V, device-side terminals are in contact only at the upper terminals (2162, 2167), and short circuiting of the lower terminals (2172, 2177) is effected using a short bar 2059. When the electrical device body is rated at 18V, the upper and lower terminals (2162 and 2172, 2167 and 2177) are simultaneously made to contact the device-side terminals, and the upper cell unit (2146) and the lower cell unit (2147) assume a parallel connected state. Thus, it is possible to automatically switch the output voltage when a battery pack is mounted according to the difference in terminal shape on the electrical device body side.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: December 21, 2021
    Assignee: Koki Holdings Co., Ltd.
    Inventors: Hiroyuki Hanawa, Tomomasa Nishikawa, Shota Kanno, Toshio Mizoguchi, Yasushi Nakano, Kazuhiko Funabashi, Takuya Teranishi, Naoto Wakatabe, Shinji Watanabe, Junpei Sato, Hikaru Tamura, Nobuhiro Takano, Osamu Kawanobe, Hayato Yamaguchi, Akira Matsushita, Masaru Hirano, Takuhiro Murakami, Masayuki Ogura, Yusuke Funabiki, Junichi Toukairin, Shota Takeuchi
  • Publication number: 20210391236
    Abstract: A semiconductor module 900 includes a semiconductor device 300 that includes first and second fin bases 800 having first and second connecting portions 810 and a resin 850 for sealing the outer peripheral side surfaces of first to fourth conductors 410 to 413, and a flow path forming body 600 connected to the first and second connecting portions 810 of the first and second fin bases 800. A first elastically deformed portion 801, which is elastically deformed, is provided such that a distance in a thickness direction between the outer peripheral ends 810a of the first and second connecting portions 810 becomes smaller than a distance in a thickness direction between intermediate portions 804 of the first and second connecting portions 810. The resin 850 is filled between the first and second connecting portions 810 of the first and second fin bases 800 are filled with the resin 850 therebetween.
    Type: Application
    Filed: November 8, 2019
    Publication date: December 16, 2021
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Nobutake TSUYUNO, Akira MATSUSHITA, Yujiro KANEKO
  • Patent number: 11201143
    Abstract: There is a problem that the reliability of insulation is lowered. A length L2 from a center P of a conductor layer 334 to a peripheral edge portion of an insulating member 333 is formed to be longer than a length L1 from the center P of the conductor layer 334 to a peripheral edge portion of a protruding portion 307a of a base member 307. In other words, a base end surface 308 of the peripheral edge portion of the protruding portion 307a is located on an inner side with respect to an insulating member end surface 336 of the peripheral edge portion of the insulating member 333. Further, the insulating member end surface 336 of the insulating member 333 and a conductor layer end surface 344 of the conductor layer form an end surface at the same position.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: December 14, 2021
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Takeshi Tokuyama, Akira Matsushita, Tokihito Suwa
  • Publication number: 20210366812
    Abstract: An object of the present invention is to provide a power semiconductor device capable of improving seismic resistance while suppressing a decrease in assembly efficiency. According to the present invention, a power semiconductor device 1 includes an element installation conductor 2 including a first conductor portion 20a that is made of metal and is used for installing a power semiconductor element 300, a second conductor portion 20b that is made of metal and forms one or more main terminals 2a for transmitting a current to the power semiconductor element 300, and one or more control terminals 2b for transmitting a switching control signal to the power semiconductor element 300, and a third conductor portion 20c that is made of metal and is provided at a tip portion of the control terminal 2b.
    Type: Application
    Filed: July 26, 2019
    Publication date: November 25, 2021
    Inventors: Akira MATSUSHITA, Takahiro SHIMURA, Yusuke TAKAGI
  • Patent number: 11167403
    Abstract: The present invention provides an electric working machine in which a control board can be disposed without limitations based on a length of a brushless motor in a direction along an axial line. The electric working machine comprises: a brushless motor provided with a rotor and a stator; a motor case and a motor housing in which the brushless motor is stored; a control board which is provided outside of the motor housing in a radial direction of an axial line defined at the center of the rotor, and supports the switching elements; a connection board which is provided in the motor case, and supports the sensors; a through hole provided on the motor case; a through hole provided on the motor housing; and leads and signal lines extending from inside of the motor housing to the outside of the motor housing through the holes.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: November 9, 2021
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Hideyuki Hashimoto, Satoshi Abe, Shingo Yamazaki, Tomomasa Nishikawa, Akira Matsushita
  • Patent number: 11137588
    Abstract: An observation apparatus including: a light-source that emits illumination light and excitation light upward from below a specimen; and an image-capturing optical system having an objective lens that focuses, below the specimen, transmitted light, which is the illumination light that is emitted from the light-source, that is reflected above the specimen, and that has passed through the specimen, and fluorescence that is generated in the specimen that has been irradiated with the excitation light emitted from the light-source, wherein the light-source is disposed radially outside the objective lens.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: October 5, 2021
    Assignee: OLYMPUS CORPORATION
    Inventors: Masaru Mizunaka, Shintaro Takahashi, Akira Matsushita, Yohei Tanikawa, Tsuyoshi Mochizuki, Shinichi Takimoto
  • Publication number: 20210272882
    Abstract: Detection accuracy of a collector sense in detecting a voltage is improved. A power module 300 has a first conductor 410 and a second conductor 411 to which a plurality of active elements 317 and 315 configuring upper and lower arm circuits are connected. In addition, the power module 300 has an AC side terminal 320B protruding from one side 301a, a positive electrode side terminal 315B and a negative electrode side terminal 319B which protrude from the other side 301b, an intermediate electrode portion 414 that connects the first conductor 410 and the second conductor 411 to each other, and a collector sense wiring 452a in which a collector electrode of an active element 157 and the first conductor 410 are connected to each other via a sense connection portion 415.
    Type: Application
    Filed: June 19, 2019
    Publication date: September 2, 2021
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Nobutake TSUYUNO, Takashi HIRAO, Akira MATSUSHITA
  • Patent number: 11052530
    Abstract: Provided is an electric work machine that can suppress a temperature increase of a component controlling an electric motor. The electric work machine including a brushless motor that operates a tip tool includes a rectification circuit that converts a voltage to be applied to the brushless motor from an alternating current voltage to a direct current voltage, and a switching circuit that controls the brushless motor, and the rectification circuit is arranged upstream of the switching circuit in a circulation path of the air that cools the rectification circuit and the switching circuit.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: July 6, 2021
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Akira Matsushita, Tomomasa Nishikawa, Yuta Noguchi, Kuniaki Kanbe, Shingo Yamazaki
  • Patent number: 10836019
    Abstract: In order to provide an impact work machine capable of preventing oil leakage and cooling a power transmission apparatus, an impact work machine transmitting power of an electric motor 16 including an output shaft extending in an axis A1 direction to an anvil includes: a housing including a motor case accommodating the electric motor, and a grip extending from the motor case; a speed reducer and an impact mechanism 96 each transmitting power of the electric motor to the anvil; a hammer case located forward of the motor case and nonrotatable relative to the motor case; an extension portion provided on the housing and extending from the motor case toward the hammer case so as to cover at least part of the hammer case; and a passage provided between the hammer case and the extension portion and through which air passes.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: November 17, 2020
    Assignee: KOKI HOLDINGS CO., LTD.
    Inventors: Akira Matsushita, Takuhiro Murakami, Tomomasa Nishikawa, Junichi Toukairin, Shota Takeuchi
  • Publication number: 20200303360
    Abstract: There is a problem that the reliability of insulation is lowered. A length L2 from a center P of a conductor layer 334 to a peripheral edge portion of an insulating member 333 is formed to be longer than a length L1 from the center P of the conductor layer 334 to a peripheral edge portion of a protruding portion 307a of a base member 307. In other words, a base end surface 308 of the peripheral edge portion of the protruding portion 307a is located on an inner side with respect to an insulating member end surface 336 of the peripheral edge portion of the insulating member 333. Further, the insulating member end surface 336 of the insulating member 333 and a conductor layer end surface 344 of the conductor layer form an end surface at the same position.
    Type: Application
    Filed: January 23, 2017
    Publication date: September 24, 2020
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Takeshi TOKUYAMA, Akira MATSUSHITA, Tokihito SUWA
  • Patent number: 10762327
    Abstract: Provided is an image-processing device that includes: a processor including hardware; the processor configured to: analyze an image of the inside of a culture vessel that cultures cells, and acquire quantitative data of living cells and quantitative data of dead cells inside the culture vessel; and generate comparison data that allows comparison of the acquired quantitative data of the living cells and the acquired quantitative data of the dead cells.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: September 1, 2020
    Assignee: OLYMPUS CORPORATION
    Inventors: Takayuki Nakatomi, Satoshi Ishii, Isao Sakane, Masakazu Fujii, Akira Matsushita, Takashi Miyoshi