Patents by Inventor Kenta Kawahara

Kenta Kawahara 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: 11979226
    Abstract: A wavelength cross-connect device performs relay processing, the relay processing being such that wavelength multiplexed signal lights, which are multiband transmitted from a plurality of routes, are demultiplexed into different wavelength bands, and for each route, respective optical signals of the different wavelength bands are amplified, then subject to route change by WSSs and outputted to output side routes M. The device includes C-band WXC units that are the same in total number as the wavelength bands of the optical signals of the respective wavelength bands and perform relay processing on optical signals of a specific wavelength band of the different wavelength bands.
    Type: Grant
    Filed: February 4, 2020
    Date of Patent: May 7, 2024
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Hiroki Kawahara, Takeshi Seki, Sachio Suda, Kohei Saito, Kenta Hirose
  • Publication number: 20220235469
    Abstract: A sliding component having a wear-resistant coating includes a sliding component formed of a Ni alloy, and a wear-resistant coating provided on a sliding surface of the sliding component. The wear-resistant coating has, at least on the surface side thereof, an Al-containing Co alloy layer which contains Co as a main component, at least one of W, Ni, Mo, Fe, Si, and C, Cr, and 0.3% by mass or more and 26% by mass or less of Al.
    Type: Application
    Filed: April 11, 2022
    Publication date: July 28, 2022
    Applicant: IHI Corporation
    Inventors: Hiroki YOSHIZAWA, Mitsutoshi WATANABE, Kenta KAWAHARA
  • Patent number: 11173951
    Abstract: Provided is an electric power steering device including a phase compensation unit having a desirable phase compensation characteristic for each vehicle speed region, which suppresses deterioration in stability of a steering system in a case where the phase compensation characteristic is changed to a different phase compensation characteristic, in which the phase compensation unit includes: a plurality of phase compensation calculation units configured to execute phase compensation calculation based on each phase compensation characteristic; a phase compensation characteristic determination unit configured to determine a phase compensation characteristic based on a vehicle speed signal output from a vehicle speed sensor; and a selection unit configured to select a phase-compensated torque signal output by the phase compensation unit from phase compensation calculation results output by the plurality of phase compensation calculation units in consideration of an amount of change in phase compensation calculatio
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: November 16, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yasuaki Hori, Kenta Kawahara, Katsuya Ikemoto, Eiji Iwami, Hideki Doi
  • Publication number: 20200391786
    Abstract: Provided is an electric power steering device including a phase compensation unit having a desirable phase compensation characteristic for each vehicle speed region, which suppresses deterioration in stability of a steering system in a case where the phase compensation characteristic is changed to a different phase compensation characteristic, in which the phase compensation unit includes: a plurality of phase compensation calculation units configured to execute phase compensation calculation based on each phase compensation characteristic; a phase compensation characteristic determination unit configured to determine a phase compensation characteristic based on a vehicle speed signal output from a vehicle speed sensor; and a selection unit configured to select a phase-compensated torque signal output by the phase compensation unit from phase compensation calculation results output by the plurality of phase compensation calculation units in consideration of an amount of change in phase compensation calculatio
    Type: Application
    Filed: November 6, 2017
    Publication date: December 17, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yasuaki HORI, Kenta KAWAHARA, Katsuya IKEMOTO, Eiji IWAMI, Hideki DOI
  • Publication number: 20160131404
    Abstract: An outdoor unit includes at least one of a hexagonal sealing nut and attention attracting means that needs to be operated by an operator when removing a hexagonal sealing nut.
    Type: Application
    Filed: March 26, 2014
    Publication date: May 12, 2016
    Inventors: Tatsuya MOCHIZUKI, Yoshihiro TANABE, Kenta KAWAHARA, Toshiyuki KUBONO, Hiroyuki JINNAI
  • Publication number: 20150040446
    Abstract: In an outdoor unit, at least the name of a refrigerant used is indicated on the outer side of a cover.
    Type: Application
    Filed: August 5, 2014
    Publication date: February 12, 2015
    Inventors: Jiro NAKASU, Hiroaki MAKINO, Minoru ISHII, Kenta KAWAHARA, Wataru YAMADA, Takahiro YAMAGUCHI
  • Patent number: 7181342
    Abstract: A vehicular navigation device for presenting a navigation content by continuing a predetermined inputting operation for navigation till the last step even if the used state changes. The navigation device comprises a presentation unit (6) for presenting a navigation content, a manual input unit (3) for receiving a plurality of inputting operations, a speech input unit (4) for receiving a speech input operation substantially identical to that of the manual input unit (3), a database (5) stored with data necessary for navigation, and a control unit (2) for providing the navigation content to the presentation unit (6) by searching the database (5) according to the inputting operation from the manual input unit (3) or the speech input unit (4).
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: February 20, 2007
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tsutomu Matsubara, Masato Hirai, Kenta Kawahara, Kenichi Ogawa, Tatsuya Mitsugi
  • Publication number: 20040176906
    Abstract: A vehicular navigation device for presenting a navigation content by continuing a predetermined inputting operation for navigation till the last step even if the used state changes. The navigation device comprises a presentation unit (6) for presenting a navigation content, a manual input unit (3) for receiving a plurality of inputting operations, a speech input unit (4) for receiving a speech input operation substantially identical to that of the manual input unit (3), a database (5) stored with data necessary for navigation, and a control unit (2) for providing the navigation content to the presentation unit (6) by searching the database (5) according to the inputting operation from the manual input unit (3) or the speech input unit (4).
    Type: Application
    Filed: January 29, 2004
    Publication date: September 9, 2004
    Inventors: Tsutomu Matsubara, Masato Hirai, Kenta Kawahara, Kenichi Ogawa, Tetsuya Mitsugi
  • Patent number: D440241
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: April 10, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kenta Kawahara, Junji Takehara
  • Patent number: D443287
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: June 5, 2001
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kenta Kawahara, Junji Takehara
  • Patent number: D419573
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: January 25, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kenta Kawahara, Tsukasa Matsuno
  • Patent number: D424584
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: May 9, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kenta Kawahara, Tsukasa Matsuno
  • Patent number: D428025
    Type: Grant
    Filed: May 20, 1999
    Date of Patent: July 11, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Takanori Miyake, Kenta Kawahara, Akihito Adachi
  • Patent number: D433042
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: October 31, 2000
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kenta Kawahara, Tomoyuki Kobayashi, Jiro Matsuyama