Patents by Inventor Tomoya Nishikawa

Tomoya Nishikawa 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: 11934147
    Abstract: A toner comprising a toner particle comprising a binder resin and organosilicon polymer particles on a surface of the toner particle, wherein the binder resin comprising an amorphous resin and a crystalline polyester resin, an absolute value |SPcpes?SPsi| of a difference between an SP value (SPsi) of the organosilicon polymer particles and an SP value (SPcpes) of the crystalline polyester resin is not more than 2.00 (cal/cm3)1/2, and an amount of adsorbed water in the organosilicon polymer particles at a temperature of 30° C. and a humidity of 80% RH is not more than 20 mg/g.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: March 19, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Yasuhiro Hashimoto, Koji Nishikawa, Yuujirou Nagashima, Tomoya Nagaoka
  • Patent number: 11738719
    Abstract: A connecting structure of a wiper arm includes a connecting shaft provided on a wiper arm and a snap-fit provided on a wiper blade. The snap-fit includes a pair of claws defining a groove that can be engaged with the connecting shaft. A slit defined by inner walls facing each other is provided on both sides of the pair of claws in a longitudinal direction of the wiper blade. A first protrusion protruding toward inside of the slit is provided on one of the inner walls, and a second protrusion protruding toward inside of the slit is provided on the other of the inner walls. The first and second protrusions are arranged offset from each other in a direction along an axial direction of the connecting shaft.
    Type: Grant
    Filed: February 23, 2022
    Date of Patent: August 29, 2023
    Assignee: MITSUBA Corporation
    Inventors: Hiroki Kashihara, Tomoya Nishikawa
  • Publication number: 20220379849
    Abstract: A connecting structure of a wiper arm includes a connecting shaft provided on a wiper arm and a snap-fit provided on a wiper blade. The snap-fit includes a pair of claws defining a groove that can be engaged with the connecting shaft. A slit defined by inner walls facing each other is provided on both sides of the pair of claws in a longitudinal direction of the wiper blade. A first protrusion protruding toward inside of the slit is provided on one of the inner walls, and a second protrusion protruding toward inside of the slit is provided on the other of the inner walls. The first and second protrusions are arranged offset from each other in a direction along an axial direction of the connecting shaft.
    Type: Application
    Filed: February 23, 2022
    Publication date: December 1, 2022
    Applicant: MITSUBA Corporation
    Inventors: HIROKI KASHIHARA, TOMOYA NISHIKAWA
  • Patent number: 10625714
    Abstract: Base end sides of washer tubes 44, 45 are arranged in an axial direction of a swinging shaft PS at one end portion of an arm head 40, and they are drawn out from a head side pipe housing portion 41a so as to curve toward a side opposite to a shaft fixing portion 42 side. Each of the washer tubes 44, 45 is wound around the shaft fixing portion 42 during swinging of the arm head 40 without applying any load to the swinging shaft PS. No tension acts on each of the washer tubes 44, 45, and each of the washer tubes 44, 45 is not rubbed against the shaft fixing portion 42. Therefore, deterioration of the washer tubes 44, 45 can be suppressed. When the washer tubes 44, 45 are wound around the shaft fixing portion 42, a periphery of the shaft fixing portion 42 is suppressed from swelling outward in a radial direction thereof. This makes it possible to prevent the arm head 40 around the swinging shaft PS from increasing in size.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: April 21, 2020
    Assignees: MITSUBA CORPORATION, HONDA MOTOR CO., LTD
    Inventors: Masayuki Shimoyama, Tomoya Nishikawa, Atsuhiro Kuwabara, Yutaka Yamashita, Shin Fujiwara, Hideyuki Koizumi, Takeshi Sasaki, Taisuke Goto, Tatsuya Ohmaru, Yuki Takahashi
  • Patent number: 10071710
    Abstract: The swing member (63) to be subjected to swinging drive is integrally provided to the output shaft (56) outside the speed reducer case (52), the speed reducer case (52) is provided with a pair of swing regulating portions (61, 62) which prevents the swing member (63) from being moved beyond the wiping-allowable limit angle (b°) by contacting the swing member (63). As a result, the swing member (63) and the swing regulating portions (61, 62) can collectively form the regulating member (60). As a result, essential components (such as fixing plate) can be omitted from the conventional wiper apparatus. Therefore, the wiper apparatus can be improved in assembly workability, size and weight by reducing the number of components thereof, and provided with a regulating member (60) which prevents the wiper member being moved beyond the wiping-allowable limit angle (b°).
    Type: Grant
    Filed: December 25, 2014
    Date of Patent: September 11, 2018
    Assignee: Mitsuba Corporation
    Inventors: Masafumi Takimoto, Shin Akimoto, Masaaki Kimura, Takeshi Kanai, Tomoya Nishikawa, Yukiyoshi Iso
  • Publication number: 20180118171
    Abstract: Base end sides of washer tubes 44, 45 are arranged in an axial direction of a swinging shaft PS at one end portion of an arm head 40, and they are drawn out from a head side pipe housing portion 41a so as to curve toward a side opposite to a shaft fixing portion 42 side. Each of the washer tubes 44, 45 is wound around the shaft fixing portion 42 during swinging of the arm head 40 without applying any load to the swinging shaft PS. No tension acts on each of the washer tubes 44, 45, and each of the washer tubes 44, 45 is not rubbed against the shaft fixing portion 42. Therefore, deterioration of the washer tubes 44, 45 can be suppressed. When the washer tubes 44, 45 are wound around the shaft fixing portion 42, a periphery of the shaft fixing portion 42 is suppressed from swelling outward in a radial direction thereof. This makes it possible to prevent the arm head 40 around the swinging shaft PS from increasing in size.
    Type: Application
    Filed: March 23, 2016
    Publication date: May 3, 2018
    Inventors: Masayuki Shimoyama, Tomoya Nishikawa, Atsuhiro Kuwabara, Yutaka Yamashita, Shin Fujiwara, Hideyuki Koizumi, Takeshi Sasaki, Taisuke Goto, Tatsuya Ohmaru, Yuki Takahashi
  • Publication number: 20160318484
    Abstract: The swing member (63) to be subjected to swinging drive is integrally provided to the output shaft (56) outside the speed reducer case (52), the speed reducer case (52) is provided with a pair of swing regulating portions (61, 62) which prevents the swing member (63) from being moved beyond the wiping-allowable limit angle (b°) by contacting the swing member (63). As a result, the swing member (63) and the swing regulating portions (61, 62) can collectively form the regulating member (60). As a result, essential components (such as fixing plate) can be omitted from the conventional wiper apparatus. Therefore, the wiper apparatus can be improved in assembly workability, size and weight by reducing the number of components thereof, and provided with a regulating member (60) which prevents the wiper member being moved beyond the wiping-allowable limit angle (b°).
    Type: Application
    Filed: December 25, 2014
    Publication date: November 3, 2016
    Inventors: Masafumi Takimoto, Shin Akimoto, Masaaki Kimura, Takeshi Kanai, Tomoya Nishikawa, Yukiyoshi Iso
  • Patent number: D781770
    Type: Grant
    Filed: April 12, 2016
    Date of Patent: March 21, 2017
    Assignee: Mitsuba Corporation
    Inventors: Hideyuki Koizumi, Tomoya Nishikawa, Masayuki Shimoyama