Patents by Inventor Kei Kamakura

Kei Kamakura 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: 11835713
    Abstract: An optical scanning apparatus includes a MEMS substrate, a substrate fixing section to which the MEMS substrate is fixed, and an environment detection sensor that detects an environment factor associated with the mirror. The environment detection sensor is disposed in a position where the environment detection sensor overlaps with or is adjacent to the substrate fixing section but does not overlap with the MEMS substrate in a plan view viewed in a direction perpendicular to a surface of the MEMS substrate.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: December 5, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Kei Kamakura, Hirokazu Yamaga, Takeshi Shimizu
  • Publication number: 20220271332
    Abstract: A stacked solid-state battery according to the present disclosure has a configuration in which a plurality of cells, each including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer provided between the positive electrode layer and the negative electrode layer, are stacked such that the positive electrode layers or the negative electrode layers of adjacent cells are disposed to face each other and, contains a first solid electrolyte represented by the following composition formula (1). (Li7-3xGax)(La3-yNdy)Zr2O12??(1) (In the formula (1), 0.1?x?1.0 and 0.01?y?0.20.
    Type: Application
    Filed: February 25, 2022
    Publication date: August 25, 2022
    Inventors: Tomofumi YOKOYAMA, Kei KAMAKURA, Hitoshi YAMAMOTO
  • Publication number: 20220271333
    Abstract: A stacked solid-state battery according to the present disclosure has a configuration in which a plurality of cells, each including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer provided between the positive electrode layer and the negative electrode layer, are stacked such that the positive electrode layers or the negative electrode layers of adjacent cells are disposed to face each other and, contains a first solid electrolyte represented by the following composition formula (1). Li7-x-yLa3Zr2-x-ySbxTayO12??(1) (In the formula (1), 0.01?x?1.99, 0.01?y?1.99, and 0.02?x+y?2.00.
    Type: Application
    Filed: February 25, 2022
    Publication date: August 25, 2022
    Inventors: Tomofumi YOKOYAMA, Kei KAMAKURA, Hitoshi YAMAMOTO
  • Patent number: 11235469
    Abstract: A robot controller is a robot controller that couples a three-dimensional measuring device configured to perform three-dimensional measurement of an object using a laser beam and a human detection sensor configured to detect a person based on an image obtained by imaging a detection range including the object, the robot controller including a human detection signal receiver configured to receive, from the human detection sensor, a signal indicating that the person is present within the detection range and a robot arm controller configured to control a robot arm based on the signal. When the human detection signal receiver receives, from the human detection sensor, the signal indicating that the person is present within the detection range, the robot arm controller controls the robot arm to set an emitting direction of the laser beam to a direction different from a direction of the person.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: February 1, 2022
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Hirosada Horiguchi, Shuichi Wakabayashi, Makiko Hino, Kei Kamakura
  • Publication number: 20220026538
    Abstract: A distance measuring device includes a light output unit outputting a linear laser beam, a light scanning unit including a mirror that reflects the laser beam from the light output unit while swinging and generating a pattern light on an object, a light detection unit placed in a position equal to or less than 90% of maximum swing amplitude of the mirror, and receiving the light reflected by the mirror and outputting a light reception signal, an imaging unit imaging the pattern light, a measuring unit measuring a distance to the object based on a result of imaging by the imaging unit, and a control unit controlling generation of the pattern light based on the light reception signal.
    Type: Application
    Filed: July 21, 2021
    Publication date: January 27, 2022
    Inventor: Kei KAMAKURA
  • Publication number: 20210173200
    Abstract: An optical scanning apparatus includes a MEMS substrate, a substrate fixing section to which the MEMS substrate is fixed, and an environment detection sensor that detects an environment factor associated with the mirror. The environment detection sensor is disposed in a position where the environment detection sensor overlaps with or is adjacent to the substrate fixing section but does not overlap with the MEMS substrate in a plan view viewed in a direction perpendicular to a surface of the MEMS substrate.
    Type: Application
    Filed: December 4, 2020
    Publication date: June 10, 2021
    Inventors: Kei KAMAKURA, Hirokazu YAMAGA, Takeshi SHIMIZU
  • Patent number: 10969647
    Abstract: An electrophoretic particle includes a particle and a coating layer, in which the coating layer includes at least one of dispersibility and chargeability, and includes a polymer that connects to the particle, where the polymer includes a first functional group and is connected to the particle via a connected body, the connected body has a molecular weight of 500 or less and includes a second functional group and a third functional group, and the particle, the connected body and the polymer are connected via the chemical bond formed by reacting the first and second functional groups and the chemical bond formed by reacting the hydroxyl group and the third functional group.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: April 6, 2021
    Assignee: E Ink Corporation
    Inventors: Kozo Shitagami, Kei Kamakura, Masahiko Nakazawa, Hiroki Nakahara, Harunobu Komatsu
  • Publication number: 20190389065
    Abstract: A robot controller is a robot controller that couples a three-dimensional measuring device configured to perform three-dimensional measurement of an object using a laser beam and a human detection sensor configured to detect a person based on an image obtained by imaging a detection range including the object, the robot controller including a human detection signal receiver configured to receive, from the human detection sensor, a signal indicating that the person is present within the detection range and a robot arm controller configured to control a robot arm based on the signal. When the human detection signal receiver receives, from the human detection sensor, the signal indicating that the person is present within the detection range, the robot arm controller controls the robot arm to set an emitting direction of the laser beam to a direction different from a direction of the person.
    Type: Application
    Filed: June 25, 2019
    Publication date: December 26, 2019
    Inventors: Hirosada HORIGUCHI, Shuichi WAKABAYASHI, Makiko HINO, Kei KAMAKURA
  • Patent number: 9921452
    Abstract: The electrophoretic display device includes an element substrate (first substrate), a counter substrate (second substrate) being disposed opposite to the element substrate, a partition being disposed between the element substrate and the counter substrate, and a dispersion liquid containing electrophoretic particles and the dispersion medium, which is disposed in a cell (space) defined by the partition. Further, a pixel electrodes (first electrode) is disposed on the dispersion liquid side of the element substrate, a common electrode (second electrode) is disposed on the dispersion liquid side of the counter substrate, the electrophoretic display device includes a coating layer on a surface in contact with the dispersion liquid in at least one electrode side of the pixel electrode and the common electrode, and the contact angle to water of the coating layer is not less than 60°.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: March 20, 2018
    Assignee: Seiko Epson Corporation
    Inventors: Kiyoshi Nakamura, Kei Kamakura, Soichi Moriya, Toru Katakabe
  • Publication number: 20170068145
    Abstract: The electrophoretic display device includes an element substrate (first substrate), a counter substrate (second substrate) being disposed opposite to the element substrate, a partition being disposed between the element substrate and the counter substrate, and a dispersion liquid containing electrophoretic particles and the dispersion medium, which is disposed in a cell (space) defined by the partition. Further, a pixel electrodes (first electrode) is disposed on the dispersion liquid side of the element substrate, a common electrode (second electrode) is disposed on the dispersion liquid side of the counter substrate, the electrophoretic display device includes a coating layer on a surface in contact with the dispersion liquid in at least one electrode side of the pixel electrode and the common electrode, and the contact angle to water of the coating layer is not less than 60°.
    Type: Application
    Filed: September 2, 2016
    Publication date: March 9, 2017
    Inventors: Kiyoshi Nakamura, Kei Kamakura, Soichi Moriya, Toru Katakabe
  • Publication number: 20160266462
    Abstract: An electrophoretic particle includes a particle and a coating layer, in which the coating layer includes at least one of dispersibility and chargeability, and includes a polymer that connects to the particle, where the polymer includes a first functional group and is connected to the particle via a connected body, the connected body has a molecular weight of 500 or less and includes a second functional group and a third functional group, and the particle, the connected body and the polymer are connected via the chemical bond formed by reacting the first and second functional groups and the chemical bond formed by reacting the hydroxyl group and the third functional group.
    Type: Application
    Filed: March 10, 2016
    Publication date: September 15, 2016
    Inventors: Kozo Shitagami, Kei Kamakura, Masahiko Nakazawa, Hiroki Nakahara, Harunobu Komatsu
  • Publication number: 20150205180
    Abstract: A method of manufacturing a dispersion medium includes bonding a siloxane compound to the surface of core particles by a precursor of the siloxane compound and the surface of the core particles being reacted in the dispersion medium, and removing the precursor not bonded to the core particles.
    Type: Application
    Filed: January 19, 2015
    Publication date: July 23, 2015
    Inventors: Shinobu Yokokawa, Masahiko Nakazawa, Keiichi Inoue, Kei Kamakura