Patents by Inventor Hiroki Kawai

Hiroki Kawai 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).

  • VEHICULAR HEADLIGHT
    Publication number: 20210010651
    Abstract: A vehicular headlight includes: a first light emitting element (55) that emits a first light (L1); a second light emitting element (63) that emits a second light (L2); a shade (43); and a projection lens (20), in which an upper surface of the shade (43) has a first reflection surface (43a) that reflects another part of the first light (L1) to the projection lens (20) side, and a lower surface of the shade has a second reflection surface (43b) that reflects another part of the second light (L2) to the projection lens (20) side, and a front end (43c) of the shade (43) has a step (43cs) in an up and down direction corresponding to a shape of a cut line of a light distribution pattern of the low beam.
    Type: Application
    Filed: March 13, 2019
    Publication date: January 14, 2021
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Makiko SUETSUGU, Hiroki KAWAI, Akira HANADA, Kenichi TAKADA, Yuusuke MOCHIDUKI
  • Image heating device
    Patent number: 10871735
    Abstract: A fixing device including a fixing belt having a maximum curvature in a rotational direction of the fixing belt. The number of times the fixing belt is bent when a temperature of the fixing belt is equal to or lower than a glass transition temperature of the fixing belt surface material is controlled to operate within a specified range.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: December 22, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroki Kawai, Mitsuru Hasegawa, Suguru Takeuchi
  • Image forming apparatus
    Patent number: 10845742
    Abstract: An image forming apparatus includes a fixing unit and a control unit. The fixing unit includes a rotating endless belt, a rotary member, a heating member, a driving unit, and a separation member arranged facing a circumference of the endless belt and configured to separate the recording material, after passing through the nip portion, from the endless belt. The control unit is configured to control the driving unit such that the endless belt stops along with an end of a fixing processing and rotates when a temperature of the endless belt passes a glass transition temperature of the endless belt from higher than the glass transition temperature of the endless belt to lower than the glass transition temperature of the endless belt.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: November 24, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroki Kawai, Mitsuru Hasegawa, Suguru Takeuchi
  • Horizontal Articulated Robot
    Publication number: 20200306962
    Abstract: A horizontal articulated robot includes a base; a first arm coupled to the base and configured to turn around a first axis, a second arm coupled to the first arm and configured to turn around a second axis parallel to the first axis, a third arm coupled to the second arm and configured to turn around a third axis parallel to the first axis and move along the third axis, a supporting section provided in the second arm and configured to support the third arm, and a force detecting section provided between the second arm and the supporting section and configured to detect force applied to the third arm.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 1, 2020
    Inventor: Hiroki KAWAI
  • IMAGE FORMING APPARATUS
    Publication number: 20200310309
    Abstract: An image forming apparatus includes a fixing unit and a control unit. The fixing unit includes a rotating endless belt, a rotary member, a heating member, a driving unit, and a separation member arranged facing a circumference of the endless belt and configured to separate the recording material, after passing through the nip portion, from the endless belt. The control unit is configured to control the driving unit such that the endless belt stops along with an end of a fixing processing and rotates when a temperature of the endless belt passes a glass transition temperature of the endless belt from higher than the glass transition temperature of the endless belt to lower than the glass transition temperature of the endless belt.
    Type: Application
    Filed: March 18, 2020
    Publication date: October 1, 2020
    Inventors: Hiroki Kawai, Mitsuru Hasegawa, Suguru Takeuchi
  • MAGNETIC MEMORY DEVICE
    Publication number: 20200303628
    Abstract: According to one embodiment, a magnetic memory device includes a stacked structure including a first magnetic layer having a variable magnetization direction, a second magnetic layer having a fixed magnetization direction, and a nonmagnetic layer provided between the first magnetic layer and the second magnetic layer, and containing magnesium (Mg) and oxygen (O). The nonmagnetic layer further contains an additive element selected from fluorine (F), sulfur (S), hydrogen (H) and lithium (Li).
    Type: Application
    Filed: September 13, 2019
    Publication date: September 24, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Tadaomi DAIBOU, Yasushi NAKASAKI, Tadashi KAI, Hiroki KAWAI, Takamitsu ISHIHARA, Junichi ITO
  • MEMORY DEVICE
    Publication number: 20200303637
    Abstract: According to one embodiment, a memory device includes a resistance change memory element including a first electrode, a second electrode, and an intermediate layer provided between the first electrode and the second electrode, containing germanium (Ge), tellurium (Te) and at least one element selected from lithium (Li) and sodium (Na), and at least a part of which being capable of exhibiting a crystalline state.
    Type: Application
    Filed: September 11, 2019
    Publication date: September 24, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventor: Hiroki KAWAI
  • STORAGE DEVICE
    Publication number: 20200295086
    Abstract: A storage device includes a first conductor, a second conductor, a variable resistance layer, a first portion, and a second portion. The variable resistance layer connects with the first conductor or the second conductor. The first portion is provided between the first conductor and the second conductor, and has a first threshold voltage value at which the resistance value changes. The second portion is provided between the first conductor and the first portion and/or between the second conductor and the first portion, and has a second threshold voltage value at which the resistance value changes and which is higher than the first threshold voltage value.
    Type: Application
    Filed: August 28, 2019
    Publication date: September 17, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Takeshi IWASAKI, Katsuyoshi KOMATSU, Hiroki KAWAI
  • Vehicular lamp
    Patent number: 10731824
    Abstract: A vehicular lamp includes a first light source that emits light for forming a first distribution pattern, a second light source that emits light for forming a second distribution pattern that is added to the first distribution pattern, and a light guide member disposed in front of the first light source. The light guide member includes a first incidence surface on which the light emitted from the first light source is incident, a total reflection surface by which a part of the light incident from the first incidence surface is totally reflected, and a first emission surface from which the light totally reflected by the total reflection surface is emitted toward the lamp front. A part of the light emitted from the second light source passes through the total reflection surface and the light guide member and is emitted from the first emission surface toward the lamp front.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: August 4, 2020
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Hiroki Kawai, Kenichi Takada, Kazutoshi Sakurai, Shuhei Nozue, Akira Hanada, Akinori Matsumoto, Shinji Kagiyama, Takahiko Honda
  • Force detector, robot, electronic component carrying apparatus, electronic component testing apparatus, part processing apparatus, and moving object
    Patent number: 10697840
    Abstract: A force detector includes a first substrate, a second substrate, a circuit board provided between the first substrate and the second substrate, and an element mounted on the circuit board and outputting a signal in response to an external force, wherein a hole is formed in the circuit board at a location where the element is placed, and a first convex part inserted into the hole and protruding toward the element is provided on the first substrate. Further, the element is placed within a periphery of the first convex part as seen from a direction perpendicular to the first substrate.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: June 30, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Akira Matsuzawa, Hiroki Kawai, Toshiyuki Kamiya
  • Force detection apparatus and robot
    Patent number: 10661456
    Abstract: A force detection apparatus includes a first member, a second member placed to be opposed to the first member, a sensor device placed between the first member and the second member and including a force detection element having at a piezoelectric element that outputs a signal according to an external force, and a pressurization bolt provided in an outer periphery of the sensor device in a plan view as seen from a direction in which the first member and the second member overlap and pressurizing the sensor device, wherein the first member has a groove which is between the sensor device and the pressurization bolt in the plan view.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: May 26, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Shoichi Nagamatsu, Tatsushi Kato, Hiroki Kawai
  • METHOD FOR MANUFACTURING ELECTRICAL CONNECTION COMPONENT
    Publication number: 20200161821
    Abstract: Provided is a method for manufacturing an electrical connection component, the method including forming a graphene-containing carbon film on the electrical connection component under heating by irradiation of laser light, on a region where the contact point part will be formed or has been formed, but outside of a region where the elastic part and the crimping part will be formed or have been formed. The electrical connection component has at least either one of an elastic part or a crimping part, and a contact point part.
    Type: Application
    Filed: November 15, 2019
    Publication date: May 21, 2020
    Applicant: Yazaki Corporation
    Inventor: Hiroki KAWAI
  • Method for detecting arrangement disorder of fibers in conductive composite material, and device for detecting arrangement disorder of fibers in conductive composite material
    Patent number: 10656121
    Abstract: Provided are a method and device for detecting arrangement disorder of fibers in a conductive composite material. A coil (7) is disposed at a position at which the coil (7) faces the conductive composite material, and thereby a current can be applied to the conductive composite material. Thus, work or the like for attaching electrodes to the conductive composite material is not required. As a result, the arrangement disorder of the fibers in the conductive composite material can easily be detected. A method for detecting meandering of fibers in a conductive composite material includes a step of disposing a magnetic field sensor (8) at a position at which the magnetic field sensor (8) faces a surface (Sa) of the conductive composite material such that a direction (D) of a magnetosensitive axis is horizontal with the surface (Sa) and is parallel to coil faces (7e).
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: May 19, 2020
    Assignee: IHI Corporation
    Inventors: Akinori Tsuda, Hiroki Kawai, Hiroaki Hatanaka, Yuichi Yamaguchi, Koichi Inagaki
  • Force detection apparatus and robot
    Patent number: 10654179
    Abstract: A force detection apparatus includes a first member, a second member, a piezoelectric sensor device sandwiched by the first member and the second member and outputting electric charge according to an external force, and a conversion and output circuit converting an electric charge output from the piezoelectric sensor device into a voltage and outputting the voltage. When a detectable range of a component of the external force in a predetermined axis direction is a first range, the external force is detected within the first range. When the detectable range is a second range different from the first range, the external force is detected within the second range.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: May 19, 2020
    Assignee: Seiko Epson Corporation
    Inventor: Hiroki Kawai
  • Vehicle lamp
    Patent number: 10655808
    Abstract: A vehicle lamp includes a projection lens, a first light source disposed behind the projection lens and configured to emit light forming a low-beam light distribution pattern which is a predetermined light distribution pattern, a reflector configured to reflect light emitted from the first light source toward a first rear focal point of the projection lens, and a second array light source disposed behind the projection lens and having a plurality of semiconductor light emitting elements arranged in at least one row. The second array light source is configured to emit light forming an additional light distribution pattern, and the center position or maximum light intensity position of the additional light distribution pattern overlaps with the low-beam light distribution pattern on a virtual vertical screen in front of the lamp.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: May 19, 2020
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Kenichi Takada, Tatsuma Kitazawa, Hiroki Kawai, Teruaki Yamamoto, Akira Hanada, Kenta Oishi, Akinori Matsumoto
  • Vehicle lamp and substrate
    Patent number: 10641451
    Abstract: A vehicle lamp configured to selectively perform a low-beam irradiation and a high-beam irradiation includes a projector lens, a light emitting element disposed behind the projector lens and configured to emit light for forming a low-beam light distribution pattern, a light emitting element disposed behind the projector lens and configured to emit light for forming an additional high-beam light distribution pattern, a upward reflecting surface (shade) disposed behind the projector lens and configured to form a cutoff line of the low-beam light distribution pattern, and an optical path change portion configured to change an optical path of a part of light emitted from the light emitting element so as to travel toward a portion between the low-beam light distribution pattern and the additional high-beam light distribution pattern.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: May 5, 2020
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Hiroki Kawai, Takahiko Honda, Shinji Kagiyama, Naoki Uchida, Ryuho Sato, Akinori Matsumoto, Hiroyuki Ishida, Takashi Inoue
  • IMAGE HEATING DEVICE
    Publication number: 20200133174
    Abstract: A maximum curvature in a rotational direction of a fixing belt and the number of times of bendings when a temperature of the fixing belt is equal to or lower than a glass transition temperature of the fixing belt surface material are specified, and the fixing belt controlled to operate within the specified range.
    Type: Application
    Filed: October 30, 2019
    Publication date: April 30, 2020
    Inventors: Hiroki Kawai, Mitsuru Hasegawa, Suguru Takeuchi
  • Image heating apparatus
    Patent number: 10627751
    Abstract: An image heating apparatus includes a fixing member, a pressing member, a fan, and a controller. When a mixed job including a first image forming step for continuously forming images on recording materials having a first basis weight and including a second image forming step, subsequent to the first image forming step, for continuously forming the images on recording materials having a second basis weight is executed, the controller switches, before a final recording material in the first image forming step completely passes through the nip, the operation of the fan to an operation of the fan for making a temperature of the pressing member higher than the temperature of the pressing member when the images are formed on the recording materials having the first basis weight.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: April 21, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Mitsuru Hasegawa, Akiyoshi Shinagawa, Asuna Fukamachi, Suguru Takeuchi, Hiroki Kawai
  • Method for inspecting electroconductive composite material and device for inspecting electroconductive composite material
    Patent number: 10605777
    Abstract: Provided is a method for inspecting an electroconductive composite material including disposing a detection magnetic field measurement unit, disposing a correction magnetic field measurement unit, applying a current, acquiring a detection magnetic field strength, acquiring a correction magnetic field strength, and detecting a portion in which arrangement of carbon fibers is disordered. The operation includes calculating a correction coefficient using the correction magnetic field strength and correcting the detection magnetic field strength using the correction coefficient.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: March 31, 2020
    Assignee: IHI Corporation
    Inventors: Hiroki Kawai, Akinori Tsuda, Hiroaki Hatanaka, Yuichi Yamaguchi, Koichi Inagaki
  • Force detecting device and robot
    Patent number: 10578500
    Abstract: A force detecting device attachable to a robot including an arm includes a first base including a projection having an attachment surface to which an end effector is attachable, a second base attached to the arm, and at least one piezoelectric element supported between the first base and the second base and configured to detect external forces applied to the first base and the second base.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 3, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Hiroki Kawai, Yoshiteru Nishimura