Patents by Inventor Katsutoshi KONDO

Katsutoshi KONDO 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).

  • Publication number: 20210199996
    Abstract: An optical waveguide device including an optical waveguide substrate that has an electro-optic effect, is a crystal having anisotropy in thermal expansion rate, has a thickness set to 10 ?m or lower, and includes an optical waveguide and a holding substrate that holds the optical waveguide substrate, the optical waveguide substrate and the holding substrate being joined to each other, in which the holding substrate is formed of a crystal having a lower dielectric constant than the optical waveguide substrate and having anisotropy in thermal expansion rate, and the optical waveguide substrate and the holding substrate are joined to each other such that differences in thermal expansion rate between the optical waveguide substrate and the holding substrate become small in different axial directions on a joint surface.
    Type: Application
    Filed: December 21, 2020
    Publication date: July 1, 2021
    Applicant: Sumitomo Osaka Cement Co., Ltd.
    Inventors: Yuki KUGIMOTO, Yumi MURATA, Katsutoshi KONDO
  • Publication number: 20210026165
    Abstract: To provide an optical element in which an electrode is directly formed on an LN substrate, and a drift phenomenon is suppressed. In an optical element including: a substrate made of lithium niobate crystals; and an electrode disposed on the substrate, the substrate and the electrode are in direct contact with each other, and as a contact metal disposed on a surface of the electrode where the electrode is in contact with the substrate, a metal material whose standard enthalpy of formation per coordinate bond upon oxidation is greater than a standard enthalpy of formation per coordinate bond of niobium pentoxide is used.
    Type: Application
    Filed: February 27, 2019
    Publication date: January 28, 2021
    Applicant: SUMITOMO OSAKA CEMENT CO.,LTD.
    Inventors: Katsutoshi KONDO, Kiyotaka NAKANO, Eiji MURAKAMI, Junichiro ICHIKAWA
  • Patent number: 9779897
    Abstract: The switch includes the base, a plurality of the fixed contact terminals, the sliding body, the operation lever, the coil spring, and the cover. From above the base, the fixed contact terminals, the sliding body, the operation lever, and the coil spring are mounted to the base, and the sliding body is pressed against the operation lever to position the operation lever. The cover is mounted to the base from above so as to press the operation lever by the pressing portion of the cover and cause the operation lever to rotate to an initial position.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: October 3, 2017
    Assignee: OMRON Corporation
    Inventors: Kenji Shinohara, Kenji Takahama, Naoki Torikai, Hiromitsu Kokabu, Katsutoshi Kondo
  • Publication number: 20170011872
    Abstract: The switch includes the base, a plurality of the fixed contact terminals, the sliding body, the operation lever, the coil spring, and the cover. From above the base, the fixed contact terminals, the sliding body, the operation lever, and the coil spring are mounted to the base, and the sliding body is pressed against the operation lever to position the operation lever. The cover is mounted to the base from above so as to press the operation lever by the pressing portion of the cover and cause the operation lever to rotate to an initial position.
    Type: Application
    Filed: November 26, 2014
    Publication date: January 12, 2017
    Applicant: OMRON Corporation
    Inventors: Kenji SHINOHARA, Kenji TAKAHAMA, Naoki TORIKAI, Hiromitsu KOKABU, Katsutoshi KONDO
  • Patent number: 9484819
    Abstract: A regulator device includes: a plurality of regulators that are equipped in parallel between a power input terminal and a power output terminal and converts a power inputted from the power input terminal to output to the power output terminal; a dummy load circuit that is coupled to a power output system different from a power output system to the respective power output terminal of the plurality of regulators; a selector that selects a regulator to carry out an output to the power output terminal and a regulator to carry out an output to the dummy load circuit among the plurality of regulators; and a controller that obtains conversion efficiency characteristic information representing a characteristic of power conversion efficiency relative to a current flowing in the dummy load circuit for the regulator to carry out an output to the dummy load circuit.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: November 1, 2016
    Assignee: FUJITSU LIMITED
    Inventors: Katsutoshi Kondo, Kazunori Kasuga, Hirofumi Shimizu
  • Patent number: 9197130
    Abstract: A regulator device includes: a power input terminal; a power output terminal; a plurality of regulators each including an operating FET and a monitoring FET to be driven together with the operating FET, the plurality of regulators being arranged in parallel between the power input terminal and the power output terminal; and a controller configured to drive the operating FET and the monitoring FET included in one of the regulators, when the controller determines whether the monitoring FET included in the one of the regulators have degraded, the controller configured to stop driving the operating FET and the monitoring FET included in the one of the regulators and configured to drive the operating FET and the monitoring FET included in another of the regulators.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: November 24, 2015
    Assignee: FUJITSU LIMITED
    Inventors: Hirofumi Shimizu, Kazunori Kasuga, Katsutoshi Kondo
  • Publication number: 20140362005
    Abstract: An information terminal device includes an input unit that inputs, when a touch operation performed in a detection area that is associated with one of keys of a software keyboard displayed on a screen has been detected, a character associated with the key in the detection area. The information terminal device includes a determining unit that determines, when a modification of a character input by the input unit has been detected, whether the key of the pre-modification character is adjacent to a key of a post-modification character in the layout of the software keyboard. The information terminal device includes a correcting unit that extends, when the determining unit determines that the key of the pre-modification character is adjacent to the key of the post-modification character, the detection area of the key associated with the post-modification character in the arrangement direction of the key that is associated with the pre-modification character.
    Type: Application
    Filed: April 30, 2014
    Publication date: December 11, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Yuko Yazawa, Kazunori Kasuga, Hirofumi Shimizu, Katsutoshi Kondo
  • Patent number: 8680826
    Abstract: A regulator apparatus having an input terminal and an output terminal, the regulator apparatus includes: a plurality of regulators arranged in parallel between the input terminal and the output terminal; an conversion efficiency characteristic information obtaining unit that obtains conversion efficiency characteristic information representing a characteristic of a conversion efficiency with respect to an output current with regard to each of the plurality of regulators; a memory that stores the conversion efficiency characteristic information of each of the plurality of regulators obtained by the conversion efficiency characteristic information obtaining unit; and a switching control unit that performs a switching control on the plurality of regulators based on a value of the output current output from the output terminal and the conversion efficiency characteristic information stored in the memory.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: March 25, 2014
    Assignee: Fujitsu Limited
    Inventors: Katsutoshi Kondo, Kazunori Kasuga, Hirofumi Shimizu
  • Publication number: 20140049242
    Abstract: A regulator device includes: a power input terminal; a power output terminal; a plurality of regulators each including an operating FET and a monitoring FET to be driven together with the operating FET, the plurality of regulators being arranged in parallel between the power input terminal and the power output terminal; and a controller configured to drive the operating FET and the monitoring FET included in one of the regulators, when the controller determines whether the monitoring FET included in the one of the regulators have degraded, the controller configured to stop driving the operating FET and the monitoring FET included in the one of the regulators and configured to drive the operating FET and the monitoring FET included in another of the regulators.
    Type: Application
    Filed: June 27, 2013
    Publication date: February 20, 2014
    Applicant: FUJITSU LIMITED
    Inventors: Hirofumi Shimizu, Kazunori Kasuga, Katsutoshi Kondo
  • Publication number: 20110309811
    Abstract: A regulator apparatus having an input terminal and an output terminal, the regulator apparatus includes: a plurality of regulators arranged in parallel between the input terminal and the output terminal; an conversion efficiency characteristic information obtaining unit that obtains conversion efficiency characteristic information representing a characteristic of a conversion efficiency with respect to an output current with regard to each of the plurality of regulators; a memory that stores the conversion efficiency characteristic information of each of the plurality of regulators obtained by the conversion efficiency characteristic information obtaining unit; and a switching control unit that performs a switching control on the plurality of regulators based on a value of the output current output from the output terminal and the conversion efficiency characteristic information stored in the memory.
    Type: Application
    Filed: June 20, 2011
    Publication date: December 22, 2011
    Applicant: Fujitsu Limited
    Inventors: Katsutoshi KONDO, Kazunori Kasuga, Hirofumi Shimizu