Patents by Inventor Keisuke Nakashima

Keisuke Nakashima 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: 11955959
    Abstract: A parallel driving device that drives parallel-connected semiconductor elements includes a control unit and a gate driving circuit. The control unit detects a temperature difference between the semiconductor elements on the basis of detected values by temperature sensors that detect temperatures of the individual semiconductor elements. The control unit generates a control signal for changing the timing at which to turn on a first semiconductor element specified from the semiconductor elements on the basis of the temperature difference. The gate driving circuit generates a first driving signal for driving the semiconductor elements, and generates a second driving signal that is the first driving signal delayed on the basis of the control signal, and applies the second driving signal to the first semiconductor element.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: April 9, 2024
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yasushi Nakayama, Yoshiko Tamada, Takayoshi Miki, Shota Morisaki, Yukio Nakashima, Kenta Uchida, Keisuke Kimura, Tomonobu Mihara
  • Patent number: 11925458
    Abstract: A motion state monitoring system, a training support system, a motion state monitoring method, and a program capable of suitably managing measurement results according to an attaching direction of a sensor are provided. A motion state monitoring system according to the present disclosure monitors a motion state of a target part of a subject's body. The motion state monitoring system includes an acquisition unit, an attaching direction detection unit, and a control processing unit. The acquisition unit acquires sensing information of a sensor attached to the target part. The attaching direction detection unit detects an attaching direction of the sensor. The control processing unit outputs information related to the sensing information in association with the attaching direction.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: March 12, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto Kobayashi, Toru Miyagawa, Issei Nakashima, Keisuke Suga, Masayuki Imaida, Manabu Yamamoto, Yohei Otaka, Masaki Katoh, Asuka Hirano, Taiki Yoshida
  • Patent number: 11927361
    Abstract: An indoor unit includes a housing that houses an electrical-component storage box that includes a body portion, a lid portion, and an engagement mechanism portion that engages the body portion and the lid portion with each other in a detachable manner. The lid portion covers an open region on a side of the body portion. The engagement mechanism portion includes an engagement claw portion provided at one of the body and lid portions and an engagement hole portion into which the claw portion is inserted, and which is formed at the other of the body and lid portions.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: March 12, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroki Nakashima, Keisuke Tomomura, Tatsuo Furuta
  • Publication number: 20230220575
    Abstract: An electrolysis system of the present disclosure includes an electrolyzer which includes an electrode to generate a gas from the electrode, and a tightening device which controls a tightening load on the electrolyzer in accordance with a pressure of the gas.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 13, 2023
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Yasuhiro FUJITA, Hiroyuki TOGO, Hirokazu NAGATE, Yousuke UCHINO, Keisuke NAKASHIMA
  • Publication number: 20210252974
    Abstract: A vehicle drive device includes a rotating electrical machine, an output member, and a reduction planetary gear device. The output member and the reduction planetary gear device are coaxially disposed side by side. The reduction planetary gear device includes a third rotating element that is selectively fixed to a case by an engagement device. A support bearing that rotatably supports the third rotating element is radially supported by the output member.
    Type: Application
    Filed: November 19, 2019
    Publication date: August 19, 2021
    Applicant: AISIN AW CO., LTD.
    Inventor: Keisuke NAKASHIMA
  • Patent number: 11028906
    Abstract: A vehicle drive system including: a rotating electric machine; an output drivingly coupled to a wheel; a differential gear device provided in a power transmission path between the rotating electric machine and the output, the differential gear device including at least a first rotating element drivingly coupled to the rotating electric machine, a second rotating element drivingly coupled to the output, and a third rotating element that is selectively fixed by a one-way clutch to a non-rotating member and that is selectively fixed by a friction brake to the non-rotating member; and a clutch that selectively couples together two of the first rotating element, the second rotating element, and the third rotating element.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: June 8, 2021
    Assignee: AISIN AW CO., LTD.
    Inventors: Takeshi Torii, Hiroshi Kato, Takuro Iwase, Keisuke Nakashima, Daisuke Yamaoka
  • Publication number: 20210091629
    Abstract: When a case of a rotary electric machine has an inner case member that houses a stator and an outer case member that houses the inner case member, a vibration that is transmitted from stator to the outer case member via inner case member is suppressed. The inner case portion is provided with a first tubular portion and a first protruding portion that protrudes toward a radial inner side from the first tubular portion on an axial first side. The outer case portion is provided with a second tubular portion and a second protruding portion that protrudes toward the radial inner side from the second tubular portion on the axial first side with respect to the first protruding portion. A coolant flow path is formed between the first tubular portion and the second tubular portion, and the first protruding portion and the second protruding portion are fixed to each other.
    Type: Application
    Filed: June 5, 2019
    Publication date: March 25, 2021
    Applicant: AISIN AW CO., LTD.
    Inventors: Takuro IWASE, Masaomi ASANO, Daisuke YAMAOKA, Takeshi TORII, Hiroaki SANJI, Jun SUZUKI, Isao FUJISHIMA, Keisuke NAKASHIMA
  • Publication number: 20200278011
    Abstract: A vehicle drive system including: a rotating electric machine; an output drivingly coupled to a wheel; a differential gear device provided in a power transmission path between the rotating electric machine and the output, the differential gear device including at least a first rotating element drivingly coupled to the rotating electric machine, a second rotating element drivingly coupled to the output, and a third rotating element that is selectively fixed by a one-way clutch to a non-rotating member and that is selectively fixed by a friction brake to the non-rotating member; and a clutch that selectively couples together two of the first rotating element, the second rotating element, and the third rotating element.
    Type: Application
    Filed: November 14, 2018
    Publication date: September 3, 2020
    Applicant: AISIN AW CO., LTD.
    Inventors: Takeshi TORII, Hiroshi KATO, Takuro IWASE, Keisuke NAKASHIMA, Daisuke YAMAOKA
  • Patent number: 10393162
    Abstract: A manufacturing method for a joint part in which a first metal piece and a second metal piece are joined to each other by performing welding by irradiating a high-energy beam to a joint surface on which the first metal piece and the second metal piece face each other, the first metal piece including a first flow path for passage of a fluid provided at a specific depth from a surface on a side exposed to the high-energy beam, the second metal piece including a second flow path for passage of the fluid provided at a specific depth from the surface on the side exposed to the high-energy beam, and the first flow path and the second flow path being coupled to each other on the joint surface.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: August 27, 2019
    Assignee: AISIN AW CO., LTD.
    Inventors: Takashi Iwama, Hiroyuki Ono, Takeshi Torii, Keisuke Nakashima, Yusuke Miyamoto, Tetsuya Aoyama
  • Publication number: 20180094287
    Abstract: A composition that efficiently produces cellulose includes cell extracts derived from a tunicate of ascidian class or yeast expressing tunicate cellulose synthase, at least one divalent cation of calcium ion and magnesium ion, cellobiose and UDP-glucose. The composition has a pH in the range of 6.6-7.2.
    Type: Application
    Filed: April 20, 2016
    Publication date: April 5, 2018
    Inventors: Keisuke NAKASHIMA, Sakura KIKUCHI, Noriyuki SATOH
  • Publication number: 20170370389
    Abstract: A manufacturing method for a joint part in which a first metal piece and a second metal piece are joined to each other by performing welding by irradiating a high-energy beam to a joint surface on which the first metal piece and the second metal piece face each other, the first metal piece including a first flow path for passage of a fluid provided at a specific depth from a surface on a side exposed to the high-energy beam, the second metal piece including a second flow path for passage of the fluid provided at a specific depth from the surface on the side exposed to the high-energy beam, and the first flow path and the second flow path being coupled to each other on the joint surface.
    Type: Application
    Filed: March 18, 2016
    Publication date: December 28, 2017
    Applicant: AISIN AW CO., LTD.
    Inventors: Takashi IWAMA, Hiroyuki ONO, Takeshi TORII, Keisuke NAKASHIMA, Yusuke MIYAMOTO, Tetsuya AOYAMA
  • Patent number: 9784364
    Abstract: A planetary carrier where the second pinion gears are disposed so as to be at least partially located in the spaces between the adjacent bridge portions, an outer peripheral surface of each of the bridge portions is provided with a spline onto which a friction engagement plate constituting a friction engagement element is fitted, an inner peripheral surface of each of the bridge portions is provided with a pair of wall portions that extend in the axial direction along side edges on both sides of each of the bridge portions and protrude radially inward, and each of the bridge portions is provided with a plurality of oil holes through which an inside and an outside of each of the bridge portions communicate with each other.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: October 10, 2017
    Assignee: AISIN AW CO., LTD.
    Inventors: Nakatsune Hattori, Motoshi Asano, Tsubasa Deguchi, Keisuke Nakashima, Takeshi Torii
  • Publication number: 20160290492
    Abstract: A planetary carrier where the second pinion gears are disposed so as to be at least partially located in the spaces between the adjacent bridge portions, an outer peripheral surface of each of the bridge portions is provided with a spline onto which a friction engagement plate constituting a friction engagement element is fitted, an inner peripheral surface of each of the bridge portions is provided with a pair of wall portions that extend in the axial direction along side edges on both sides of each of the bridge portions and protrude radially inward, and each of the bridge portions is provided with a plurality of oil holes through which an inside and an outside of each of the bridge portions communicate with each other.
    Type: Application
    Filed: November 19, 2014
    Publication date: October 6, 2016
    Applicant: AISIN AW CO., LTD.
    Inventors: Nakatsune HATTORI, Motoshi ASANO, Tsubasa DEGUCHI, Keisuke NAKASHIMA, Takeshi TORII
  • Publication number: 20160281839
    Abstract: A transmission device that includes a flange provided with first exposing portions and second exposing portions arranged alternately with each other, and is also provided with a plurality of bridges, the first and second exposing portions exposing at least part of the shaft recesses and the outer peripheral portions of the pinion shafts inserted into the shaft support holes, and also exposing the crimp receiving portions of the planetary carrier, and the bridges connecting portions between the adjacent first and second exposing portions on an inner peripheral side of either of the first and second exposing portions.
    Type: Application
    Filed: March 28, 2014
    Publication date: September 29, 2016
    Inventors: Takeshi Torii, Tsubasa Deguchi, Keisuke Nakashima
  • Patent number: 9388705
    Abstract: The sealing device includes: an outer peripheral ring 2000 that is in contact with a side wall surface of an annular groove 4100 at a low pressure side (L), and slides with respect to an inner peripheral surface of a shaft hole in a housing 5000 through which a shaft 4000 is inserted. An inner peripheral ring 3000 made of a rubber-like elastic body that is in contact with an inner peripheral surface of the outer peripheral ring 2000 and a groove bottom surface of the annular groove 4100, respectively. The outer peripheral ring 2000 is formed on its outer peripheral surface with a concave portion 2220 which extends from an end of a high pressure side (H) to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: July 12, 2016
    Assignee: NOK CORPORATION
    Inventors: Kazunari Seki, Koji Watanabe, Wataru Tokunaga, Yuki Takao, Fangman Xu, Hirotaka Mizuta, Keisuke Nakashima, Takuya Igawa, Yusuke Yoshida, Hideya Watanabe, Yosuke Kondo
  • Patent number: 9309973
    Abstract: The sealing device includes: an outer peripheral ring 2000 that is in contact with a side wall surface of an annular groove 4100 at a low pressure side (L), and slides with respect to an inner peripheral surface of a shaft hole in a housing 5000 through which a shaft 4000 is inserted. An inner peripheral ring 3000 made of a rubber-like elastic body that is in contact with an inner peripheral surface of the outer peripheral ring 2000 and a groove bottom surface of the annular groove 4100, respectively. The outer peripheral ring 2000 is formed on its outer peripheral surface with a concave portion 2220 which extends from an end of a high pressure side (H) to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: April 12, 2016
    Assignee: NOK CORPORATION
    Inventors: Kazunari Seki, Koji Watanabe, Wataru Tokunaga, Yuki Takao, Fangman Xu, Hirotaka Mizuta, Keisuke Nakashima, Takuya Igawa, Yusuke Yoshida, Hideya Watanabe, Yosuke Kondo
  • Patent number: 9157530
    Abstract: The sealing device includes: an outer peripheral ring 2000 that is in contact with a side wall surface of an annular groove 4100 at a low pressure side (L), and slides with respect to an inner peripheral surface of a shaft hole in a housing 5000 through which a shaft 4000 is inserted. An inner peripheral ring 3000 made of a rubber-like elastic body that is in contact with an inner peripheral surface of the outer peripheral ring 2000 and a groove bottom surface of the annular groove 4100, respectively. The outer peripheral ring 2000 is formed on its outer peripheral surface with a concave portion 2220 which extends from an end of a high pressure side (H) to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 13, 2015
    Assignee: NOK CORPORATION
    Inventors: Kazunari Seki, Koji Watanabe, Wataru Tokunaga, Yuki Takao, Fangman Xu, Hirotaka Mizuta, Keisuke Nakashima, Takuya Igawa, Yusuke Yoshida, Hideya Watanabe, Yosuke Kondo
  • Publication number: 20150204204
    Abstract: The sealing device includes: an outer peripheral ring 2000 that is in contact with a side wall surface of an annular groove 4100 at a low pressure side (L), and slides with respect to an inner peripheral surface of a shaft hole in a housing 5000 through which a shaft 4000 is inserted. An inner peripheral ring 3000 made of a rubber-like elastic body that is in contact with an inner peripheral surface of the outer peripheral ring 2000 and a groove bottom surface of the annular groove 4100, respectively. The outer peripheral ring 2000 is formed on its outer peripheral surface with a concave portion 2220 which extends from an end of a high pressure side (H) to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side.
    Type: Application
    Filed: March 11, 2013
    Publication date: July 23, 2015
    Inventors: Kazunari Seki, Koji Watanabe, Wataru Tokunaga, Yuki Takao, Fangman Xu, Hirotaka Mizuta, Keisuke Nakashima, Takuya Igawa, Yusuke Yoshida, Hideya Watanabe, Yosuke Kondo
  • Publication number: 20150108720
    Abstract: The sealing device includes: an outer peripheral ring 2000 that is in contact with a side wall surface of an annular groove 4100 at a low pressure side (L), and slides with respect to an inner peripheral surface of a shaft hole in a housing 5000 through which a shaft 4000 is inserted. An inner peripheral ring 3000 made of a rubber-like elastic body that is in contact with an inner peripheral surface of the outer peripheral ring 2000 and a groove bottom surface of the annular groove 4100, respectively. The outer peripheral ring 2000 is formed on its outer peripheral surface with a concave portion 2220 which extends from an end of a high pressure side (H) to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side.
    Type: Application
    Filed: March 11, 2013
    Publication date: April 23, 2015
    Inventors: Kazunari Seki, Koji Watanabe, Wataru Tokunaga, Yuki Takao, Fangman Xu, Hirotaka Mizuta, Keisuke Nakashima, Takuya Igawa, Yusuke Yoshida, Hideya Watanabe, Yosuke Kondo
  • Publication number: 20150048574
    Abstract: The sealing device includes: an outer peripheral ring 2000 that is in contact with a side wall surface of an annular groove 4100 at a low pressure side (L), and slides with respect to an inner peripheral surface of a shaft hole in a housing 5000 through which a shaft 4000 is inserted. An inner peripheral ring 3000 made of a rubber-like elastic body that is in contact with an inner peripheral surface of the outer peripheral ring 2000 and a groove bottom surface of the annular groove 4100, respectively. The outer peripheral ring 2000 is formed on its outer peripheral surface with a concave portion 2220 which extends from an end of a high pressure side (H) to a position which does not arrive at an end of a low pressure side, so as to introduce fluid thereinto from the high pressure side.
    Type: Application
    Filed: March 11, 2013
    Publication date: February 19, 2015
    Applicant: NOK CORPORATION
    Inventors: Kazunari Seki, Koji Watanabe, Wataru Tokunaga, Yuki Takao, Fangman Xu, Hirotaka Mizuta, Keisuke Nakashima, Takuya Igawa, Yusuke Yoshida, Hideya Watanabe, Yosuke Kondo