Patents by Inventor Yasuhiro Ishikawa

Yasuhiro Ishikawa 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: 20240154359
    Abstract: A fixing structure of a connector 1 includes a housing 13 and a front holder 15. The front holder 15 includes a detection portion 151, a latching lock 152, and a restriction protrusion 153. The housing 13 includes an accommodation portion 1314, a restriction recessed portion 1315, and a latching portion 1316a. A restriction surface 1533 extending to cross a height direction Z is provided on the restriction protrusion 153, and a contact surface 1315a-1 configured to come into contact with the restriction surface 1533 and support the restriction protrusion 153 is provided on the restriction recessed portion 1315. When the latching lock 152 elastically deforms in the height direction Z, the restriction surface 1533 is in contact with the contact surface 1315a-1.
    Type: Application
    Filed: November 7, 2023
    Publication date: May 9, 2024
    Applicant: Yazaki Corporation
    Inventors: Yasuhiro SASAKI, Jun ISHIKAWA, Yuki NORO
  • Publication number: 20240154360
    Abstract: A connector includes a housing with a latching lock and a lever latch section which is independent from the latching lock. A partner connector includes a partner housing with a lock section which is latchable by the latching lock. The lever is changeable between a non-latched state and a latched state, wherein when changing the lever from the non-latched state to the latched state, the lever connects the connector to the partner connector so as to cause the connector and the partner connector to approach each other in a forward-rearward direction. The connector is configured to be fixed to the partner connector by the lever being brought into the latched state and by the lock section being brought into a state in which the lock section is latched by the latching lock.
    Type: Application
    Filed: November 7, 2023
    Publication date: May 9, 2024
    Applicant: Yazaki Corporation
    Inventors: Yasuhiro SASAKI, Jun ISHIKAWA, Yuki NORO
  • Patent number: 11971265
    Abstract: A monitoring device includes: an instruction unit configured to instruct a vehicle to acquire appearance data of a monitoring object designated by a user; a detection unit configured to receive the appearance data from the vehicle and to detect whether a state of the monitoring object has changed based on the appearance data; and a monitoring result notifying unit configured to notify the user of a monitoring result of the monitoring object when the detection unit detects that the state of the monitoring object has changed.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: April 30, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Marie Ishikawa, Aya Hamajima, Daichi Hotta, Hayato Ito, Hidekazu Sasaki, Yasuhiro Kobatake, Akihiro Kusumoto
  • Patent number: 11955905
    Abstract: A three-phase/two-phase conversion unit 43 generates a composite vector i?? of three-phase AC currents based on AC currents iu, iv, and iw. An electrical angle calculation unit 44 outputs the electrical angle of the composite vector i?? with reference to the U-phase AC current iu. A quadrant calculation unit 45 obtains which quadrant of the first to sixth quadrants partitioned in advance the acquired electrical angle corresponds to, confirms whether the composite vector i?? passes through the set quadrant, and outputs quadrant information thereof. A failure detection unit 47 determines whether the composite vector i?? has rotated from the first quadrant to the sixth quadrant, and when there is a quadrant that has not been passed, considers that it is a failure state, specifies a failure part of the switching element from the relationship between the electrical angle and the failure part, and outputs failure information to a PWM signal generation unit 42.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: April 9, 2024
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Yasuhiro Ishikawa, Ryohichi Inada
  • Patent number: 11945908
    Abstract: Provided is a polycarbonate-polyorganosiloxane copolymer (A), including: a polycarbonate block (A-1) formed of a repeating unit having a specific structure; and a polyorganosiloxane block (A-2) containing a repeating unit having a specific structure, wherein the polycarbonate-polyorganosiloxane copolymer satisfies the following requirements (1) to (3): (1) the content of the polyorganosiloxane block (A-2) in the polycarbonate-polyorganosiloxane copolymer (A) is from more than 40 mass % to 70 mass % or less; (2) the polycarbonate-polyorganosiloxane copolymer has a viscosity-average molecular weight of from 10,000 or more to 23,000 or less; and (3) the polycarbonate-polyorganosiloxane copolymer includes a specific polycarbonate block as the polycarbonate block (A-1).
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: April 2, 2024
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Kazushige Ideta, Hirotoshi Ishii, Yasuhiro Ishikawa
  • Publication number: 20240093834
    Abstract: A tank includes a liner and a reinforcement layer. The liner has a body portion with a cylindrical shape, and a pair of dome-shaped portions respectively provided at both ends of the body portion in an axial direction of the body portion. The reinforcement layer covers the liner and is made of a fiber reinforced resin that is a resin-impregnated fiber bundle. The reinforcement layer includes a part reinforcement layer disposed from an apex side of each of the dome-shaped portions across a boundary between the dome-shaped portion and the body portion to part of the body portion, and an outer hoop layer disposed outside the part reinforcement layer and provided so as to press an end, adjacent to the body portion, of the part reinforcement layer.
    Type: Application
    Filed: August 24, 2023
    Publication date: March 21, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yasuhiro IIDA, Takeshi ISHIKAWA, Takuya KOBAYASHI, Naoki UEDA
  • Patent number: 11851560
    Abstract: A polycarbonate-based resin composition, including: a polycarbonate-based resin satisfying requirements (1) and (2); and an inorganic filler blended into the polycarbonate-based resin, wherein a ratio of the filler in 100 mass % of a total amount of the polycarbonate-based resin and the filler is from 0.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: December 26, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yasuhiro Ishikawa, Tomoko Abe
  • Patent number: 11697708
    Abstract: Provided is a polycarbonate-polyorganosiloxane copolymer including polycarbonate blocks (A-1) each formed of a specific repeating unit and polyorganosiloxane blocks (A-2) each containing a specific repeating unit, wherein the polycarbonate-polyorganosiloxane copolymer satisfies the following expression (F1a): 15?wM1??(F1a) wherein wM1 represents the average content of the polyorganosiloxane blocks (A-2) in polycarbonate-polyorganosiloxane copolymers each having a molecular weight determined by using a polycarbonate as a conversion reference of from 56,000 or more to 200,000 or less among polycarbonate-polyorganosiloxane copolymers obtained through the separation of the polycarbonate-polyorganosiloxane copolymer by gel permeation chromatography.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: July 11, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yasuhiro Ishikawa, Tomoko Abe, Takafumi Akimoto
  • Patent number: 11655326
    Abstract: Provided is a molded body including a polycarbonate-polyorganosiloxane copolymer which contains a polycarbonate block (A-1) formed of a repeating unit having a specific structure and a polyorganosiloxane block (A-2) containing a repeating unit having a specific structure, and in which the content of the polyorganosiloxane block (A-2) is from 20 mass % or more to 70 mass % or less, wherein the molded body has a durometer hardness of from 25 or more to 72 or less measured with a type D durometer in conformity with JIS K 6253-3:2012.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: May 23, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Kazushige Ideta, Hirotoshi Ishii, Yasuhiro Ishikawa
  • Publication number: 20230116659
    Abstract: A polycarbonate-polyorganosiloxane copolymer comprises a polycarbonate block (A-1) formed of a repeating unit with a specific structure and a polyorganosiloxane block (A-2) containing a repeating unit with a specific structure. A difference between the haze value (haze A) after retention for 3 minutes and the haze value (haze B) after retention for 20 minutes, of the polycarbonate-polyorganosiloxane copolymer or a resin composition thereof at 300° C. or 340° C., ?haze, is less than 0.4.
    Type: Application
    Filed: December 25, 2020
    Publication date: April 13, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Yasuhiro ISHIKAWA, Hajime WATANABE, Aki YAMADA
  • Publication number: 20230067874
    Abstract: A vehicle door opening device includes a lock control device configured to switch a door lock device to an unlocked state when an operation on a first operation member is detected, and a latch control device configured to: when an operation on a second operation member is detected while the door lock device is in the unlocked state, switch the latch mechanism to an unlatched state; when the operation on the second operation member is detected while the door lock device is in a locked state and when the operation on the first operation member is detected, switch the latch mechanism to the unlatched state; and, when the operation on the second operation member is detected while the door lock device is in the locked state and when the operation on the first operation member is not detected, maintain the latch mechanism in a latched state.
    Type: Application
    Filed: August 29, 2022
    Publication date: March 2, 2023
    Applicants: AISIN CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoya ISHIDA, Eiji ITAMI, Hideyuki KANIE, Yasuhiro ISHIKAWA
  • Publication number: 20220416688
    Abstract: A three-phase/two-phase conversion unit 43 generates a composite vector i?? of three-phase AC currents based on AC currents iu, iv, and iw. An electrical angle calculation unit 44 outputs the electrical angle of the composite vector i?? with reference to the U-phase AC current iu. A quadrant calculation unit 45 obtains which quadrant of the first to sixth quadrants partitioned in advance the acquired electrical angle corresponds to, confirms whether the composite vector i?? passes through the set quadrant, and outputs quadrant information thereof. A failure detection unit 47 determines whether the composite vector i?? has rotated from the first quadrant to the sixth quadrant, and when there is a quadrant that has not been passed, considers that it is a failure state, specifies a failure part of the switching element from the relationship between the electrical angle and the failure part, and outputs failure information to a PWM signal generation unit 42.
    Type: Application
    Filed: October 27, 2020
    Publication date: December 29, 2022
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Yasuhiro ISHIKAWA, Ryohichi INADA
  • Patent number: 11519485
    Abstract: The present invention relates to a lock-up clutch of a torque converter. A cover (10) is separated to a pilot (48) and includes an opening (10-1) for installing the pilot (48). Before assembling a clutch driving portion such as a piston, a separator, drive plates, a seal ring, and driven plates, to the pilot (48), rivets (53) are press-fitted into the pilot (48), the cover (10) is abutted to respective head portions of the rivets (53), and the pilot (48) is installed in the cover (10) and is fixed to the cover (10) by welding. Thereafter, the piston, the drive plates and the driven plates are disposed between the separator and the cover (10), the seal ring is contact with the separator, the separator is press-fitted into projection ends of the rivets (53), and then projection portions (53-2) of the rivets (53) are crimped.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: December 6, 2022
    Assignees: UNIPRES CORPORATION, JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Nobuhiko Furuya, Ryuta Mori, Mitsuyoshi Tako, Daisuke Nakahara, Koshi Asao, Daisuke Usui, Takumi Watanabe, Yasuhiro Ishikawa
  • Publication number: 20220363839
    Abstract: Provided is a polycarbonate-based resin composition including: a polycarbonate-polyorganosiloxane copolymer (A); and at least one kind of compound (B) selected from the group consisting of an antioxidant, a dye, a release agent, a light-diffusing agent, a flame retardant, a UV absorber, a silicone-based compound, an epoxy compound, and a polyether compound, wherein the polycarbonate-polyorganosiloxane copolymer (A) contains a polycarbonate block (A-1) and a polyorganosiloxane block (A-2), and satisfies the following requirements (1) to (3): (1) the content of the polyorganosiloxane block (A-2) is from more than 40 mass % to 70 mass % or less; (2) the copolymer has a viscosity-average molecular weight of from 10,000 to 23,000; and (3) the copolymer contains a specific polycarbonate block as the polycarbonate block (A-1).
    Type: Application
    Filed: June 30, 2020
    Publication date: November 17, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Kazushige IDETA, Yasuhiro ISHIKAWA, Hirotoshi ISHII
  • Publication number: 20220364529
    Abstract: The combustor for a rocket engine includes a combustion room configured to cause a combustion reaction between a fuel and an oxidant, an injector configured to inject the fuel and the oxidant into the combustion room, and a nozzle skirt configured to inject combustion gas generated by the combustion reaction to an outside, and an inertance increasing portion configured to increase an equivalent inertance in a vibration equivalent circuit of the combustor for the rocket engine.
    Type: Application
    Filed: August 1, 2022
    Publication date: November 17, 2022
    Applicant: IHI Corporation
    Inventors: Yasuhiro ISHIKAWA, Shinji ISHIHARA, Hatsuo MORI
  • Publication number: 20220363893
    Abstract: Provided is a molded body, including a polycarbonate-based resin composition containing: a polycarbonate-polyorganosiloxane copolymer (A); and at least one kind of compound (B) selected from the group consisting of an antioxidant, a dye, a release agent, a light-diffusing agent, a flame retardant, a UV absorber, a silicone-based compound, an epoxy compound, and a polyether compound, wherein the polycarbonate-polyorganosiloxane copolymer (A) contains a polycarbonate block (A-1) and a polyorganosiloxane block (A-2), and contains the polyorganosiloxane block (A-2) at a content of from 20 mass % to 70 mass %, and wherein the molded body has a durometer hardness of from 25 to 72, which is measured with a type D durometer in conformity with JIS K 6253-3:2012.
    Type: Application
    Filed: June 30, 2020
    Publication date: November 17, 2022
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Kazushige IDETA, Yasuhiro ISHIKAWA, Hirotoshi ISHII
  • Patent number: 11352478
    Abstract: A flame-retardant polycarbonate-based resin composition, including: a polycarbonate-based resin satisfying requirements (1) and (2); and a flame retardant, wherein the flame retardant is in an amount of from 0.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: June 7, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yasuhiro Ishikawa, Tomoko Abe, Yohei Koori
  • Publication number: 20220136593
    Abstract: A friction engaging device includes a plurality of first plates slidably fitted to an outer periphery side cylindrical member, a plurality of second plates slidably fitted to an inner periphery side cylindrical member, a piston pushing the first plates and the second plates by moving in an axial direction, a biasing member applying a bias force to the piston in the axial direction, and a plate member supporting a first end of the biasing member. The plate member slides in the axial direction in a state where the plate member is fitted to either one of the outer periphery side cylindrical member and the inner periphery side cylindrical member.
    Type: Application
    Filed: November 8, 2019
    Publication date: May 5, 2022
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventor: Yasuhiro ISHIKAWA
  • Publication number: 20220136517
    Abstract: A sealing device includes a plurality of non-contact seals provided along a sealed shaft; a contact seal provided on at least one of two sides of the plurality of non-contact seals; an injection part that supplies purge gas into a first space of spaces arranged in an axial direction of the sealed shaft, the spaces being between the plurality of non-contact seals and the contact seal; and a collector that collects the purge gas from a second space of the spaces between the plurality of non-contact seals and the contact seal, the second space being positioned to be next to the first space in the axial direction.
    Type: Application
    Filed: August 2, 2019
    Publication date: May 5, 2022
    Applicant: IHI Corporation
    Inventors: Toru KUGA, Yasuhiro ISHIKAWA
  • Patent number: 11312860
    Abstract: Provided is a polycarbonate-based resin composition, including: 50 mass % or more to 99 mass % or less of a polycarbonate-based resin (S) containing 0.1 mass % or more to 100 mass % or less of a polycarbonate-polyorganosiloxane copolymer (A), which contains a polycarbonate block (A-1) formed of a specific repeating unit and a polyorganosiloxane block (A-2) containing a specific repeating unit, and 0 mass % or more to 99.9 mass % or less of an aromatic polycarbonate-based resin (B) except the polycarbonate-polyorganosiloxane copolymer (A); and 1 mass % or more to 50 mass % or less of a polyester-based resin (C), wherein the polyorganosiloxane block (A-2) has an average chain length of from 20 or more to less than 50, and a 3-millimeter thick plate formed of the polycarbonate-based resin composition has a total light transmittance of 80% or more.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: April 26, 2022
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventor: Yasuhiro Ishikawa