Patents by Inventor Keita Ishikawa

Keita Ishikawa 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: 10962957
    Abstract: A collision position estimation device allowing extraction of data related to a torque of a section related to collision of a cushion member includes a machine learning device. The machine learning device includes a state observation unit for observing axis movement data indicating information related to movement of the axis and motor torque data indicating data related to torque of a motor driving the axis as a state variable representing a current state of an environment, a label data acquisition unit for acquiring collision position data indicating the position of the axis during collision of the cushion member as label data, and a learning unit for associating and learning the information related to movement of the axis and the data related to the torque of the motor driving the axis with the position of the axis during collision of the cushion member using the state variable and the label data.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: March 30, 2021
    Assignee: FANUC CORPORATION
    Inventors: Chao Zhi, Kazuhiro Satou, Keita Hada, Takeshi Sumi, Ryutaro Ishikawa
  • Patent number: 10923982
    Abstract: An electric compressor motor housing is provided with: a motor housing main body (8), the interior of which is a cylindrical space for internally equipping a motor, and in which a plurality of refrigerant passages are formed around the cylindrical space, in the direction of the motor axis; an inverter accommodating portion (17) provided in an upper portion of the outer periphery of the motor housing main body (8); compressor attachment feet (19) provided in a plurality of locations in upper and lower portions of the outer periphery of the motor housing main body (8); and a refrigerant intake port (16) provided on a side surface toward the rear end of the motor housing main body (8); wherein one or more lines of ribs (24) are provided on the outer peripheral side surface of the motor housing main body (8), protruding outward and extending in the vertical direction.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: February 16, 2021
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Goshi Iketaka, Hiroshi Yamazaki, Masayuki Ishikawa, Keita Kitaguchi, Hideo Saho, Noriaki Arashi
  • Publication number: 20200380697
    Abstract: The present disclosure relates to an image processing device, an imaging device, an image processing method, and a program to make it possible to superimpose a complementary image in such a manner that an appearance becomes more natural. From an image acquired by imaging of an arbitrary subject, a removal region selecting unit selects a region, in which an intended object to be removed is included, as a removal region with reference to distance information that is acquired when the image is imaged and that indicates a distance to the subject. On the basis of the distance information, a complementary region specifying unit specifies a complementary region to complement the removal region from a region including a background of the object to be removed in the image, and an image superimposition processing unit superimposes a complementary image generated from the complementary region on a place from which the removal region is deleted in the image.
    Type: Application
    Filed: March 16, 2018
    Publication date: December 3, 2020
    Inventors: TAKAAKI NAKAGAWA, KEITA ISHIKAWA, HIROMASA DOI
  • Publication number: 20200308482
    Abstract: The present invention provides a method for easily and simply producing a zinc oxide phosphor that has a high level of safety and a high emission intensity and is useful for, for example, cosmetic applications. The present invention also provides a zinc oxide phosphor having such excellent physical properties and a cosmetic product containing the same. Provided is a method for producing a zinc oxide phosphor, including: a raw material mixing step of mixing an oxygen-containing zinc compound and a sulfur-containing compound; and a firing step of firing the raw material mixture obtained in the raw material mixing step, the firing step including firing in a reducing atmosphere followed by firing in an oxygen-containing atmosphere.
    Type: Application
    Filed: June 30, 2017
    Publication date: October 1, 2020
    Applicant: Sakai Chemical Industry Co., Ltd.
    Inventors: Momoko ISHIKAWA, Keita KOBAYASHI, Nanae OGATA, Kenji MORI, Tomonori TOJO
  • Patent number: 10766069
    Abstract: There is disclosed a method for manufacturing an electrode by pressing and sintering a mixed powder of a solid solution powder of Cr and a heat-resistant element, which contains Cr and the heat-resistant element in a ratio such that Cr is greater than the heat-resistant element by weight, a Cu powder, and a low melting metal powder (Bi, Sn, Se, Pb, etc.). The low melting metal powder of 0.30 weight % to 0.50 weight % is added to a mixed powder of a solid solution powder of Cr and the heat-resistant element and the Cu powder, and then a mixed powder prepared by adding the low melting metal powder is sintered at a temperature of from 1010° C. to 1035° C. As the low melting metal powder, there is used a powder having a median size of from 5 ?m to 20 ?m.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: September 8, 2020
    Assignee: MEIDENSHA CORPORATION
    Inventors: Shota Hayashi, Keita Ishikawa, Kenta Yamamura, Kosuke Hasegawa, Hideaki Fukuda, Akira Sano
  • Publication number: 20200231407
    Abstract: To provide an elevator car position detection sensor capable of suppressing erroneous detection of presence or absence of a plate. The elevator car position detection sensor includes a first coil provided to one of an elevator car and a hoistway and configured to output an excitation magnetic field to a plate provided to the other of the elevator car and the hoistway; a second coil provided on an opposite side of the first coil relative to the plate; a shield wall configured to shield an end portion of the plate located closer to one of the car and the hoistway; and a determination circuit configured to determine a phase of an alternating-current voltage corresponding to a frequency of the excitation magnetic field output from the first coil at an alternating-current voltage generated across the second coil.
    Type: Application
    Filed: May 10, 2017
    Publication date: July 23, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Jin INOUE, Keita MOCHIZUKI, Masahiro ISHIKAWA, Akihide SHIRATSUKI
  • Publication number: 20200157366
    Abstract: An ink contains at least one kind of polyether-modified siloxane compound and at least one kind of aliphatic alcohol alkylene oxide compound.
    Type: Application
    Filed: June 27, 2018
    Publication date: May 21, 2020
    Inventors: Hiroshi GOTOU, Yoshiaki MASUDA, Masahiko ISHIKAWA, Masaki KUDO, Kazuhiko UMEMURA, Keita KATOH, Akihiko MATSUYAMA, Masayasu NONOGAKI, Takeshi SHIBUYA
  • Patent number: 10622862
    Abstract: An electric compressor motor housing is provided with: a motor housing main body (8), the interior of which is a cylindrical space for internally equipping a motor, and in which a plurality of refrigerant passages are formed around the cylindrical space, in the direction of the motor axis; an inverter accommodating portion (17) provided in an upper portion of the outer periphery of the motor housing main body (8); compressor attachment feet (19) provided in a plurality of locations in upper and lower portions of the outer periphery of the motor housing main body (8); and a refrigerant intake port (16) provided on a side surface toward the rear end of the motor housing main body (8); wherein one or more lines of ribs (24) are provided on the outer peripheral side surface of the motor housing main body (8), protruding outward and extending in the vertical direction.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: April 14, 2020
    Assignee: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
    Inventors: Goshi Iketaka, Hiroshi Yamazaki, Masayuki Ishikawa, Keita Kitaguchi, Hideo Saho, Noriaki Arashi
  • Patent number: 10614969
    Abstract: Disclosed is a method for manufacturing an electrode material (1), wherein the electrode material includes: a center part (2) containing Cu, Cr and a heat resistant element and having superior large-current interruption and capacitor switching capabilities; and an outer circumferential part (3) disposed on an outer circumference of the center part (2). The outer circumferential part (3) contains Cu and Cr and has superior withstand voltage capability. The electrode material (1) is manufactured by molding a solid solution powder of Cr and the heat resistant element, molding a Cr powder integrally around an outer circumference of the molded body of the solid solution powder and infiltrating the integrally molded body with Cu etc.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: April 7, 2020
    Assignee: MEIDENSHA CORPORATION
    Inventors: Keita Ishikawa, Shota Hayashi, Hideaki Fukuda, Kosuke Hasegawa, Kenta Yamamura
  • Publication number: 20190393519
    Abstract: When a time period from a stop to a start of a fuel cell system exceeds a predetermined time period, a controller of the fuel cell system obtains a first electrical conductivity of a cooling medium that is placed from a radiator to before a connecting location of one end portion in a cooling medium circulation flow path and a second electrical conductivity of the cooling medium that is placed on a downstream side of an ion exchanger in a bypass flow path, and uses the obtained first electrical conductivity and second electrical conductivity and a predetermined target electrical conductivity of a supply cooling medium to control the operation of a flow dividing valve such that the electrical conductivity of the supply cooling medium becomes equal to or less than the target electrical conductivity and thereby regulate a flow rate ratio.
    Type: Application
    Filed: June 18, 2019
    Publication date: December 26, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keita YAMAUE, Hiroyuki IMANISHI, Tomotaka ISHIKAWA
  • Publication number: 20190362910
    Abstract: Disclosed is a method for manufacturing an electrode material (1), wherein the electrode material includes: a center part (2) containing Cu, Cr and a heat resistant element and having superior large-current interruption and capacitor switching capabilities; and an outer circumferential part (3) disposed on an outer circumference of the center part (2). The outer circumferential part (3) contains Cu and Cr and has superior withstand voltage capability. The electrode material (1) is manufactured by molding a solid solution powder of Cr and the heat resistant element, molding a Cr powder integrally around an outer circumference of the molded body of the solid solution powder and infiltrating the integrally molded body with Cu etc.
    Type: Application
    Filed: November 8, 2017
    Publication date: November 28, 2019
    Applicant: MEIDENSHA CORPORATION
    Inventors: Keita ISHIKAWA, Shota HAYASHI, Hideaki FUKUDA, Kosuke HASEGAWA, Kenta YAMAMURA
  • Publication number: 20190363376
    Abstract: An FC (fuel cell) system includes: an FC; a radiator configured to cool a CL (cooling liquid); an ion exchanger provided in a BFP (bypass flow path) branched off from a CFP (circulation flow path) for allowing the CL to circulate between the FC and the radiator; a multi-way valve provided in a branching point at which the BFP is branched off from the CFP; and a pump which circulates the CL. A percentage of the CL that is made to flow through the BFP can be controlled by the multi-way valve. In a case in which a stop time is longer than a threshold time when the FC system is started up, after the CL is circulated through the radiator, the CL is circulated through the BFP at the percentage of 80% or more until electrical conductivity of the CL becomes smaller than a threshold electrical conductivity.
    Type: Application
    Filed: April 12, 2019
    Publication date: November 28, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keita YAMAUE, Shigeki HASEGAWA, Hiroyuki IMANISHI, Tomotaka ISHIKAWA
  • Patent number: 10490367
    Abstract: It is a method for manufacturing an electrode material containing Cu, Cr, a heat-resistant element, and a low melting metal. A Cr powder and a heat-resistant element powder are mixed together in a ratio such that the Cr is greater than the heat-resistant element by weight. The mixed powder of the heat-resistant element and the Cr powder is baked. A MoCr solid solution obtained by the baking and containing a solid solution of the heat-resistant element and the Cr is pulverized and then classified. The classified MoCr solid solution powder, a Cu powder, and a low-melting metal powder are mixed together, followed by sintering at a temperature that is 1010° C. or higher and is lower than 1038° C., thereby obtaining the electrode material.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: November 26, 2019
    Assignee: MEIDENSHA CORPORATION
    Inventors: Shota Hayashi, Keita Ishikawa, Kenta Yamamura, Kosuke Hasegawa
  • Publication number: 20190299285
    Abstract: There is disclosed a method for manufacturing an electrode by pressing and sintering a mixed powder of a solid solution powder of Cr and a heat-resistant element, which contains Cr and the heat-resistant element in a ratio such that Cr is greater than the heat-resistant element by weight, a Cu powder, and a low melting metal powder (Bi, Sn, Se, Pb, etc.). The low melting metal powder of 0.30 weight % to 0.50 weight % is added to a mixed powder of a solid solution powder of Cr and the heat-resistant element and the Cu powder, and then a mixed powder prepared by adding the low melting metal powder is sintered at a temperature of from 1010° C. to 1035° C. As the low melting metal powder, there is used a powder having a median size of from 5 ?m to 20 ?m.
    Type: Application
    Filed: March 15, 2017
    Publication date: October 3, 2019
    Applicant: MEIDENSHA CORPORATION
    Inventors: Shota HAYASHI, Keita ISHIKAWA, Kenta YAMAMURA, Kosuke HASEGAWA, Hideaki FUKUDA, Akira SANO
  • Publication number: 20190278251
    Abstract: A collision position estimation device allowing extraction of data related to a torque of a section related to collision of a cushion member includes a machine learning device. The machine learning device includes a state observation unit for observing axis movement data indicating information related to movement of the axis and motor torque data indicating data related to torque of a motor driving the axis as a state variable representing a current state of an environment, a label data acquisition unit for acquiring collision position data indicating the position of the axis during collision of the cushion member as label data, and a learning unit for associating and learning the information related to movement of the axis and the data related to the torque of the motor driving the axis with the position of the axis during collision of the cushion member using the state variable and the label data.
    Type: Application
    Filed: February 27, 2019
    Publication date: September 12, 2019
    Inventors: Chao ZHI, Kazuhiro SATOU, Keita HADA, Takeshi SUMI, Ryutaro ISHIKAWA
  • Patent number: 10402148
    Abstract: A multi-display control apparatus includes a processor for an information handling device and a memory that stores code executable by the processor. The code is executable by the processor to detect a trigger event and, in response to detecting the trigger event, temporarily stopping display of content on a first display device in which the first display device is external to a second display device of a computing device storing the content.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: September 3, 2019
    Assignee: Lenovo (Singapore) PTE. LTD.
    Inventors: Takane Fujino, Keita Ishikawa, Takayuki Suzuki, Takehito Yamauchi
  • Patent number: 10394275
    Abstract: A member for chassis capable of achieving high strength is disclosed. The member for chassis is used for a chassis making up a lid of an electronic device in which the lid and the body are coupled with each other openably/closably via a hinge. The member for chassis has a configuration in which a frame formed of thermoplastic resin is joined with at least a part of an outside end face of a laminated plate including an intermediate layer disposed between a pair of fiber-reinforced resin plates, wherein the thermoplastic resin extends to a surface of the laminated plate and a nut serving as a female thread part is provided in the thermoplastic resin extending to the surface of the laminated plate.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: August 27, 2019
    Assignee: LENOVO (SINGAPORE) PTE LTD
    Inventors: Fumitake Mizoguchi, Takehito Yamauchi, Tatsuya Ushioda, Keita Ishikawa
  • Patent number: 10361039
    Abstract: It is an electrode material that is used as an electrode contact of a vacuum interrupter and that contains one or more parts by weight of a heat-resistant element and one part by weight of Cr, the remainder being Cu and an unavoidable impurity. A part of Cr powder and the heat-resistant element powder are mixed together, and this mixed powder is sintered such that a peak corresponding to Cr element disappears in X-ray diffraction measurement. A solid solution powder obtained by pulverizing a sintered body of the heat-resistant element and Cr obtained by the sintering is mixed with the remaining Cr powder, and this mixed powder is shaped and then sintered. A sintered body obtained by this sintering is infiltrated with Cu.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: July 23, 2019
    Assignee: MEIDENSHA CORPORATION
    Inventors: Keita Ishikawa, Kenta Yamamura, Kosuke Hasegawa, Shota Hayashi, Takaaki Furuhata
  • Publication number: 20190197687
    Abstract: An apparatus acquires a first converted image by converting resolution of a first image of a subject into first resolution, acquires a second converted image by converting resolution of a second image into the first resolution, acquires first deformation information for executing image registration between the first converted image and the second converted image with the first resolution, and generates a subtraction image with the first resolution based on the first deformation information, the subtraction image showing a difference between the first converted image and the second converted image, or generates a second subtraction image based on second deformation information obtained in such a manner that resolution of the first deformation information is converted into the resolution of the first image, the second subtraction image showing a difference between the first image and the second image.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 27, 2019
    Inventors: Yoshitaka Minami, Ryo Ishikawa, Toru Tanaka, Kiyohide Satoh, Keita Nakagomi
  • Patent number: 10262819
    Abstract: Disclosed is a vacuum circuit breaker (1) including a vacuum interrupter (3) accommodated in a ground tank (2) filled with insulating gas. At least one of a fixed electrode (10) and a movable electrode (11) of the vacuum interrupter (3) uses an electrode material in which particles containing a solid solution of a heat resistant element and Cr are finely and uniformly dispersed and in which Cu textures as a high conductive component are finely and uniformly dispersed. The electrode material contains 20 to 70% by weight of Cu, 1.5 to 64% by weight of Cr and 6 to 76% by weight of the heat resistant element relative to a weight of the electrode material. The particles of the solid solution in the electrode material have an average particle size of 20 ?m or smaller.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: April 16, 2019
    Assignee: MEIDENSHA CORPORATION
    Inventors: Kazuhiro Nagatake, Kaoru Kitakizaki, Keita Ishikawa, Shota Hayashi, Kosuke Hasegawa