Patents by Inventor Ryoichi MIZUTANI

Ryoichi MIZUTANI 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: 11938739
    Abstract: An ink refill container includes a container main body including an ink storage chamber, an ink outlet-forming portion provided on an end portion of the container main body forming an ink outlet that allows the ink to flow out from the ink storage chamber, and a valve provided in the ink outlet-forming portion configured to openably seal the ink outlet, in which the ink outlet-forming portion includes a positioning portion on an outer side of the ink outlet-forming portion. in which the positioning portion is closer to the container main body than the valve is to the container main body in a central axis direction of the ink outlet, and in which the positioning portion partially abuts against an ink tank when the valve is opened for refilling the ink to the ink tank, to thereby position the valve relative to the ink tank.
    Type: Grant
    Filed: March 15, 2023
    Date of Patent: March 26, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Tadahiro Mizutani, Ryoichi Tanaka, Manabu Akahane, Makoto Kobayashi, Naomi Kimura, Hideki Okumura, Shoma Kudo, Tetsuya Takamoto, Hiroaki Sakai
  • Patent number: 11932022
    Abstract: Convenience of an ink bottle and a bottle set is improved. An ink bottle includes: a container portion that contains ink; a guiding portion that is formed in one end portion of the container portion, and includes an outflow port from which the ink in the container portion flow out; and a cover that covers at least an end portion of the container portion on the opposite side of the guiding portion.
    Type: Grant
    Filed: February 2, 2023
    Date of Patent: March 19, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Taku Ishizawa, Tadahiro Mizutani, Ryoichi Tanaka, Manabu Akahane, Koichi Toba, Takumi Nagashima, Yoshiaki Shimizu, Tadashi Watanabe, Noriyuki Fukasawa
  • Patent number: 11618436
    Abstract: A vehicle control apparatus includes a steering device, a steering controller, a steering input member, a front-rear driving force distribution unit, and a behavior controller. The steering device steers front wheels of a vehicle. The steering controller controls and causes the steering device to perform steering automatically. The steering input member receives a steering operation inputted by a driver. The front-rear driving force distribution unit changes a front-rear driving force distribution ratio. The behavior controller predicts, if a steering operation is performed via the steering input member during the automatic steering, a behavior of the vehicle to be exhibited after steering corresponding to the steering operation, and causes, if an oversteer behavior is predicted to occur, the front-rear driving force distribution unit to change the driving force distribution ratio to a front-wheel biased distribution ratio as compared with a case where the oversteer behavior is not predicted to occur.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: April 4, 2023
    Assignee: SUBARU CORPORATION
    Inventors: Harunobu Horiguchi, Ryoichi Mizutani, Akihisa Osada, Yohei Kawashima, Yuki Sugimoto
  • Patent number: 11491959
    Abstract: A braking control device includes a target vehicle speed setting unit, a braking power control unit, and a low friction coefficient region recognition unit. The low friction coefficient region recognition unit recognizes a low friction coefficient region of a road surface between a current position of an own vehicle and a target position. The braking power control unit estimates a maximum deceleration rate assuming braking to be started after passage through the low friction coefficient region to cause deceleration to a target vehicle speed at the target position. On the condition that the maximum deceleration rate is smaller than a predetermined upper limit on a deceleration rate, the braking power control unit causes a start of generation of braking power after the passage through the low friction coefficient region.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: November 8, 2022
    Assignee: SUBARU CORPORATION
    Inventors: Harunobu Horiguchi, Ryoichi Mizutani, Akihisa Osada, Yohei Kawashima, Yuki Sugimoto
  • Patent number: 11400918
    Abstract: A vehicle control device to be installed in a vehicle includes a self-driving controller and a calculator. The self-driving controller is configured to set a target vehicle speed and a target steering angle to allow the vehicle to trace a predetermined target travel locus. The self-driving controller is configured to control the vehicle based on the target vehicle speed and the target steering angle. The calculator is configured to calculate a deviation between an index of an actual vehicle behavior and an index of a reference vehicle behavior. The self-driving controller corrects one or both of the target vehicle speed and the target steering angle in accordance with an increase of the deviation, so as to stabilize the vehicle.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: August 2, 2022
    Assignee: SUBARU CORPORATION
    Inventors: Harunobu Horiguchi, Yuta Ishizuka, Makoto Nakauchi, Ryoichi Mizutani, Masaki Sunagawa
  • Patent number: 11285951
    Abstract: A vehicle brake control apparatus includes a vibration detector configured to detect a predetermined vibration state in a frictional brake device, a power regeneration execution determination unit configured to determine, in a case where the predetermined vibration state is detected by the vibration detector, whether to permit execution of power regeneration by a power generating device or to limit the execution, a pressing force controller configured to change, in a case where the execution of the power regeneration is limited by the power regeneration execution determination unit, a pressing force of a friction material in the frictional brake device, and a driving force cooperative controller configured to adjust a driving force of a vehicle to suppress fluctuation in forward acceleration or backward acceleration of the vehicle associated with a change in the pressing force by the pressing force controller.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: March 29, 2022
    Assignee: SUBARU CORPORATION
    Inventors: Harunobu Horiguchi, Yuta Ishizuka, Makoto Nakauchi, Ryoichi Mizutani, Masaki Sunagawa
  • Publication number: 20210213919
    Abstract: A braking control device includes a target vehicle speed setting unit, a braking power control unit, and a low friction coefficient region recognition unit. The low friction coefficient region recognition unit recognizes a low friction coefficient region of a road surface between a current position of an own vehicle and a target position. The braking power control unit estimates a maximum deceleration rate assuming braking to be started after passage through the low friction coefficient region to cause deceleration to a target vehicle speed at the target position. On the condition that the maximum deceleration rate is smaller than a predetermined upper limit on a deceleration rate, the braking power control unit causes a start of generation of braking power after the passage through the low friction coefficient region.
    Type: Application
    Filed: October 1, 2020
    Publication date: July 15, 2021
    Inventors: Harunobu HORIGUCHI, Ryoichi MIZUTANI, Akihisa OSADA, Yohei KAWASHIMA, Yuki SUGIMOTO
  • Publication number: 20210139016
    Abstract: A vehicle control apparatus includes a steering device, a steering controller, a steering input member, a front-rear driving force distribution unit, and a behavior controller. The steering device steers front wheels of a vehicle. The steering controller controls and causes the steering device to perform steering automatically. The steering input member receives a steering operation inputted by a driver. The front-rear driving force distribution unit changes a front-rear driving force distribution ratio. The behavior controller predicts, if a steering operation is performed via the steering input member during the automatic steering, a behavior of the vehicle to be exhibited after steering corresponding to the steering operation, and causes, if an oversteer behavior is predicted to occur, the front-rear driving force distribution unit to change the driving force distribution ratio to a front-wheel biased distribution ratio as compared with a case where the oversteer behavior is not predicted to occur.
    Type: Application
    Filed: October 1, 2020
    Publication date: May 13, 2021
    Inventors: Harunobu HORIGUCHI, Ryoichi MIZUTANI, Akihisa OSADA, Yohei KAWASHIMA, Yuki SUGIMOTO
  • Publication number: 20200398846
    Abstract: A vehicle brake control apparatus includes a vibration detector configured to detect a predetermined vibration state in a frictional brake device, a power regeneration execution determination unit configured to determine, in a case where the predetermined vibration state is detected by the vibration detector, whether to permit execution of power regeneration by a power generating device or to limit the execution, a pressing force controller configured to change, in a case where the execution of the power regeneration is limited by the power regeneration execution determination unit, a pressing force of a friction material in the frictional brake device, and a driving force cooperative controller configured to adjust a driving force of a vehicle to suppress fluctuation in forward acceleration or backward acceleration of the vehicle associated with a change in the pressing force by the pressing force controller.
    Type: Application
    Filed: April 8, 2020
    Publication date: December 24, 2020
    Inventors: Harunobu HORIGUCHI, Yuta ISHIZUKA, Makoto NAKAUCHI, Ryoichi MIZUTANI, Masaki SUNAGAWA
  • Publication number: 20200307551
    Abstract: A vehicle control device to be installed in a vehicle includes a self-driving controller and a calculator. The self-driving controller is configured to set a target vehicle speed and a target steering angle to allow the vehicle to trace a predetermined target travel locus. The self-driving controller is configured to control the vehicle based on the target vehicle speed and the target steering angle. The calculator is configured to calculate a deviation between an index of an actual vehicle behavior and an index of a reference vehicle behavior. The self-driving controller corrects one or both of the target vehicle speed and the target steering angle in accordance with an increase of the deviation, so as to stabilize the vehicle.
    Type: Application
    Filed: January 13, 2020
    Publication date: October 1, 2020
    Inventors: Harunobu HORIGUCHI, Yuta ISHIZUKA, Makoto NAKAUCHI, Ryoichi MIZUTANI, Masaki SUNAGAWA