Patents by Inventor Masahiro Yoshikawa

Masahiro Yoshikawa 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: 11958845
    Abstract: The present invention provides a heterocyclic compound having a HDAC6 inhibitory action, which is useful for the treatment of central nervous system diseases including neurodegenerative diseases, and the like, and a medicament comprising the compound. The present invention relates to a compound represented by the formula (I): wherein each symbol is as defined in the description, or a salt thereof.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: April 16, 2024
    Assignee: Takeda Pharmaceutical Company Limited
    Inventors: Masahiro Ito, Hideyuki Sugiyama, Takeshi Yamamoto, Keiko Kakegawa, Jinxing Li, Junsi Wang, Takahito Kasahara, Masato Yoshikawa
  • Patent number: 11929589
    Abstract: A light-emitting component includes: a substrate; plural light-emitting elements that are disposed on the substrate and that emit light in a direction intersecting with a surface of the substrate; and plural thyristors that are stacked on the plural light-emitting elements and that are turned ON to drive the corresponding light-emitting elements so that the light-emitting elements emit light or an amount of light emitted from the light-emitting elements is increased. Each of the plural light-emitting elements includes a current confinement region which is oxidized via a hole provided in a multilayer structure. The multilayer structure is constituted by a corresponding light-emitting element and a corresponding thyristor.
    Type: Grant
    Filed: December 20, 2020
    Date of Patent: March 12, 2024
    Assignee: FUJIFILM Business Innovation Corp.
    Inventors: Takashi Kondo, Michiaki Murata, Kenichi Ono, Masahiro Yoshikawa, Takehito Hikichi, Yuji Shirai
  • Patent number: 11911841
    Abstract: A double-acting friction stir spot welding apparatus according to the present disclosure includes a pin member (11) formed in a cylindrical shape, a shoulder member (12) formed in a hollow cylindrical shape and into which the pin member (11) is inserted, a rotary drive (57) that rotates the pin member (11) and the shoulder member (12) on an axis (Xr) coaxial with the pin member (11), and a linear drive (53) that reciprocates each of the pin member (11) and the shoulder member (12) along the axis (Xr). Oil solution (70) is disposed at at least one circumferential surface among an outer circumferential surface (11c) of the pin member (11), an inner circumferential surface (12b) of the shoulder member (12), an outer circumferential surface (12c) of the shoulder member (12), and an inner circumferential surface (13b) of a clamp member (13).
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: February 27, 2024
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Masahiro Miyake, Syuhei Yoshikawa, Yusuke Yoshida
  • Patent number: 11885049
    Abstract: A mesh belt used in a process for producing a water absorbing body which is formed by warps and wefts being woven with each other. One or more yarns which constitute(s) the warps or the wefts emerging on at least a transporting surface side of the mesh belt is made of an electrically conductive material.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: January 30, 2024
    Assignee: NIPPON FILCON CO., LTD.
    Inventors: Takehiko Tatsuno, Masahiro Yoshikawa, Teppei Hashiguchi, Shinsuke Ueno
  • Publication number: 20230212728
    Abstract: A gas wiping nozzle manufactured from parts divided along the slit length direction and maintains a gap in the width direction over the length direction in high temperature atmospheres and a method for manufacturing a hot-dip metal strip. In a gas wiping nozzle, a first and a second nozzle member are each divided along the length direction X of a slit into a plurality of nozzle members. The dimension of a divided face of the first nozzle member is 1.5T1 or more in a section of the first nozzle member where T1 is the thickness of the first nozzle member in the width direction Z of the slit, and the dimension of a divided face of the second nozzle member is 1.5T2 or more in a section of the second nozzle member where T2 is the thickness of the second nozzle member in the width direction Z of the slit.
    Type: Application
    Filed: April 21, 2021
    Publication date: July 6, 2023
    Applicant: JFE STEEL CORPORATION
    Inventors: Kenji YAMASHIRO, Hideyuki TAKAHASHI, Takumi KOYAMA, Hidetoshi INOUE, Syuhei NISHINAKA, Toshiki FUJII, Reona AISHIMA, Yutaka YANAGISAWA, Masahiro YOSHIKAWA
  • Publication number: 20230112504
    Abstract: A rectification member 32 is a rectification member that rectifies air that cools molten resin filaments discharged from a nozzle, including: a multi-cylindrical part in which a plurality of cylindrical cells 34a are formed; and a wire net 36 arranged to cover an opening part of the multi-cylindrical part. The wire net 36 has a mesh opening that is smaller than the size of the cylindrical cells 34a.
    Type: Application
    Filed: December 14, 2022
    Publication date: April 13, 2023
    Inventors: Takehiko Tatsuno, Masahiro Yoshikawa, Haruka Iida
  • Patent number: 11598032
    Abstract: A web support with a high degree of patterning freedom and excellent durability, a production method therefor, and a patterning method. The web support is used when applying a pattern to a nonwoven substance by jetting a high-pressure water stream on a web. The web support production method comprises: a step of preparing a flat metal base material; a step for forming, by etching, a first water conduction hole and second water conduction hole that pass through the front surface of the base material to the back surface, and a recess on the front surface of the base material that includes the first water conduction hole and that corresponds to the pattern; and a step for forming the base material into a cylindrical main body section by welding the edges of the base material to each other.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: March 7, 2023
    Assignee: NIPPON FILCON CO., LTD.
    Inventors: Naoki Fujita, Megumi Taguchi, Takehiko Tatsuno, Masahiro Yoshikawa
  • Publication number: 20210305771
    Abstract: A light-emitting component includes: a substrate; plural light-emitting elements that are disposed on the substrate and that emit light in a direction intersecting with a surface of the substrate; and plural thyristors that are stacked on the plural light-emitting elements and that are turned ON to drive the corresponding light-emitting elements so that the light-emitting elements emit light or an amount of light emitted from the light-emitting elements is increased. Each of the plural light-emitting elements includes a current confinement region which is oxidized via a hole provided in a multilayer structure. The multilayer structure is constituted by a corresponding light-emitting element and a corresponding thyristor.
    Type: Application
    Filed: December 20, 2020
    Publication date: September 30, 2021
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Takashi KONDO, Michiaki MURATA, Kenichi ONO, Masahiro YOSHIKAWA, Takehito HIKICHI, Yuji SHIRAI
  • Publication number: 20210214869
    Abstract: A web support with a high degree of patterning freedom and excellent durability, a production method therefor, and a patterning method. The web support is used when applying a pattern to a nonwoven substance by jetting a high-pressure water stream on a web. The web support production method comprises: a step of preparing a flat metal base material; a step for forming, by etching, a first water conduction hole and second water conduction hole that pass through the front surface of the base material to the back surface, and a recess on the front surface of the base material that includes the first water conduction hole and that corresponds to the pattern; and a step for forming the base material into a cylindrical main body section by welding the edges of the base material to each other.
    Type: Application
    Filed: October 11, 2018
    Publication date: July 15, 2021
    Inventors: Naoki FUJITA, Megumi TAGUCHI, Takehiko TATSUNO, Masahiro YOSHIKAWA
  • Publication number: 20200263332
    Abstract: A mesh belt used in a process for producing a water absorbing body which is formed by warps and wefts being woven with each other. One or more yarns which constitute(s) the warps or the wefts emerging on at least a transporting surface side of the mesh belt is made of an electrically conductive material.
    Type: Application
    Filed: April 17, 2020
    Publication date: August 20, 2020
    Inventors: Takehiko Tatsuno, Masahiro Yoshikawa, Teppei Hashiguchi, Shinsuke Ueno
  • Patent number: 10717224
    Abstract: A method of manufacturing a product with skin includes: attaching a preformed base material to a vacuum forming die on a back surface of the base material, disposing a skin material as a material of the skin on a front surface of a base material, and sucking the skin material through the vacuum forming die and the base material to deform a main portion of skin material so as to be in close contact with the front surface of the base material; cutting a surplus portion of the skin material not being in close contact with the front surface of the base material with a trim blade so that a distal end portion remains around the main portion, thereby forming the skin having the distal end portion; and winding the distal end portion of the skin around the back surface of the base material by a winding mechanism.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: July 21, 2020
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Yumi Hida, Masahiro Yoshikawa, Kenichi Furuta, Hideyuki Miura, Akira Maeda, Shingo Yokota, Takuya Ueno
  • Publication number: 20180065291
    Abstract: A method of manufacturing a product with skin includes: attaching a preformed base material to a vacuum forming die on a back surface of the base material, disposing a skin material as a material of the skin on a front surface of a base material, and sucking the skin material through the vacuum forming die and the base material to deform a main portion of skin material so as to be in close contact with the front surface of the base material; cutting a surplus portion of the skin material not being in close contact with the front surface of the base material with a trim blade so that a distal end portion remains around the main portion, thereby forming the skin having the distal end portion; and winding the distal end portion of the skin around the back surface of the base material by a winding mechanism.
    Type: Application
    Filed: August 30, 2017
    Publication date: March 8, 2018
    Inventors: Yumi HIDA, Masahiro YOSHIKAWA, Kenichi FURUTA, Hideyuki MIURA, Akira MAEDA, Shingo YOKOTA, Takuya UENO
  • Publication number: 20170136498
    Abstract: Provided is a classifier capable of classifying smaller microparticles and obtaining a narrower particle size distribution.
    Type: Application
    Filed: March 31, 2014
    Publication date: May 18, 2017
    Applicant: HOSOKAWA MICRON CORPORATION
    Inventors: MASAHIRO INOKI, MASAHIRO YOSHIKAWA, TOMOYUKI CHIBA
  • Patent number: 9555416
    Abstract: Disposed is a jet mill that has a cylindrical pulverization chamber (10) and a classification chamber (6) that connects to the pulverization chamber (10). A fine-powder discharge port (4a) and a classification rotor (7) are provided in the classification chamber (6). A feedstock supply port (5) and at least one gas emission nozzle (11) are provided in the pulverization chamber (10). The shape of the classification chamber (6) is a cone that starts on the inner wall of the pulverization chamber (10), and is angled towards the classification rotor (7). This configuration gives the jet mill high efficiency of pulverization and reduces the amount of powders left in the chamber when the jet mill has finished running.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: January 31, 2017
    Assignee: HOSOKAWA MICRON CORPORATION
    Inventors: Masahiro Yoshikawa, Tomoyuki Chiba, Takashi Shibata
  • Patent number: 8989644
    Abstract: An image forming apparatus includes an image forming device forming an image on a recording medium; and a light source that, after the image has been formed by the image forming device, irradiates the recording medium with light to fix the image on the recording medium, while the recording medium moves relatively in a predetermined movement direction. The light source includes a current supply section, a light emitting section, and a current output section. Current for light emission is supplied to the current supply section. The light emitting section includes light emitting elements that are disposed two-dimensionally. At least the light emitting elements provided side by side in the movement direction are electrically connected in parallel. The current output section outputs the current that has passed through the light emitting section. The current supply section and the light emitting section are provided side by side in the movement direction.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: March 24, 2015
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Osamu Ueno, Tomoaki Kojima, Masateru Yamamoto, Masahiro Yoshikawa, Kohei Yukawa
  • Publication number: 20140126941
    Abstract: An image forming apparatus includes an image forming device forming an image on a recording medium; and a light source that, after the image has been formed by the image forming device, irradiates the recording medium with light to fix the image on the recording medium, while the recording medium moves relatively in a predetermined movement direction. The light source includes a current supply section, a light emitting section, and a current output section. Current for light emission is supplied to the current supply section. The light emitting section includes light emitting elements that are disposed two-dimensionally. At least the light emitting elements provided side by side in the movement direction are electrically connected in parallel. The current output section outputs the current that has passed through the light emitting section. The current supply section and the light emitting section are provided side by side in the movement direction.
    Type: Application
    Filed: May 29, 2013
    Publication date: May 8, 2014
    Inventors: Osamu UENO, Tomoaki KOJIMA, Masateru YAMAMOTO, Masahiro YOSHIKAWA, Kohei YUKAWA
  • Patent number: 8659020
    Abstract: It is an object to provide an epitaxial silicon wafer that is provided with an excellent gettering ability in which a polysilicon layer is formed on the rear face side of a silicon crystal substrate into which phosphorus (P) and germanium (Ge) have been doped. A silicon epitaxial layer is grown by a CVD method on the surface of a silicon crystal substrate into which phosphorus and germanium have been doped at a high concentration. After that, a PBS forming step for growing a polysilicon layer is executed on the rear face side of a silicon crystal substrate. By the above steps, the number of LPDs (caused by an SF) that occur on the surface of the epitaxial silicon wafer due to the SF can be greatly reduced.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: February 25, 2014
    Assignee: Sumco Corporation
    Inventors: Tadashi Kawashima, Masahiro Yoshikawa, Akira Inoue, Yoshiya Yoshida
  • Publication number: 20130186993
    Abstract: Disposed is a jet mill that has a cylindrical pulverization chamber (10) and a classification chamber (6) that connects to the pulverization chamber (10). A fine-powder discharge port (4a) and a classification rotor (7) are provided in the classification chamber (6). A feedstock supply port (5) and at least one gas emission nozzle (11) are provided in the pulverization chamber (10). The shape of the classification chamber (6) is a cone that starts on the inner wall of the pulverization chamber (10), and is angled towards the classification rotor (7). This configuration gives the jet mill high efficiency of pulverization and reduces the amount of powders left in the chamber when the jet mill has finished running.
    Type: Application
    Filed: July 28, 2011
    Publication date: July 25, 2013
    Applicant: HOSOKAWA MICRON CORPORATION
    Inventors: Masahiro Yoshikawa, Tomoyuki Chiba, Takashi Shibata
  • Patent number: 8477821
    Abstract: A vertical cavity surface emitting laser that includes: a substrate; a first reflector of a first conductive type formed on the substrate; an active region formed on the first reflector; a second reflector of a second conductive type formed on the active region; and a current confining layer formed between the first reflector and the second reflector; and a metallic electrode that is formed on the second reflector, and is electrically connected to the second reflector. A conductive region with an anisotropy where a length in a longitudinal direction is different from a length in a short direction is formed in the current confining layer, and an opening defining a beam aperture is formed in the metallic electrode, and a diameter of the opening in the longitudinal direction is smaller than the length of the conductive region in the longitudinal direction.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: July 2, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masahiro Yoshikawa, Hideo Nakayama
  • Patent number: D851251
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: June 11, 2019
    Assignees: DAIYA HOLDINGS CO., LTD., MASAHIRO YOSHIKAWA
    Inventors: Masahiro Yoshikawa, Masao Matsuo, Kazunori Ogawa