Patents by Inventor Kazuya Sakurai

Kazuya Sakurai 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: 11971569
    Abstract: There is provided a light emitting device that can be used as a light guide plate and has an excellent antireflection function to extraneous light, and an optical body includes: a base material; a macro concave-convex structure that is formed on one surface of the base material and emits internally propagating light that is injected in an inside of the base material from a side surface of the base material, from another surface of the base material; and a micro concave-convex structure formed periodically to follow each of both surfaces of the base material and a surface of the macro concave-convex structure, and having an average period of concavity and convexity of less than or equal to a wavelength of visible light. The surface of the macro concave-convex structure has an inclined surface, and an arrangement of the micro concave-convex structure is a zigzag arrangement.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: April 30, 2024
    Assignee: DEXERIALS CORPORATION
    Inventors: Shunichi Kajiya, Kyoko Sakurai, Katsuhiro Doi, Kazuya Hayashibe, Naoki Hanashima, Naoto Kaneko
  • Patent number: 11926210
    Abstract: A paddle shifter includes a pair of operation portions that decrease or increase the deceleration, the shift characteristic of the vehicle is set to a fixed shift mode based on the operation of the driver in response to an operation of one operation portion, a shift characteristic of the vehicle is set to a fixed shift mode based on the operation of the driver in response to an operation of the one operation portion, the shift characteristic of the vehicle is set to an automatic shift mode based on a running condition of the vehicle in response to an operation of the other operation portion, and when the one operation portion of the pair of operation portions remains in an ON state for a predetermined period of time, a change in the shift characteristic of the vehicle based on the other operation portion is activated.
    Type: Grant
    Filed: June 30, 2023
    Date of Patent: March 12, 2024
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Noriaki Suzuki, Kazuya Sakurai, Tetsuya Suko
  • Publication number: 20240066982
    Abstract: A paddle shifter includes a pair of operation portions that decrease or increase the deceleration, the shift characteristic of the vehicle is set to a fixed shift mode based on the operation of the driver in response to an operation of one operation portion, a shift characteristic of the vehicle is set to a fixed shift mode based on the operation of the driver in response to an operation of the one operation portion, the shift characteristic of the vehicle is set to an automatic shift mode based on a running condition of the vehicle in response to an operation of the other operation portion, and when the one operation portion of the pair of operation portions remains in an ON state for a predetermined period of time, a change in the shift characteristic of the vehicle based on the other operation portion is activated.
    Type: Application
    Filed: June 30, 2023
    Publication date: February 29, 2024
    Inventors: Noriaki SUZUKI, Kazuya SAKURAI, Tetsuya SUKO
  • Publication number: 20230391329
    Abstract: A vehicle speed control device is configured to: acquire an AP opening rate of an accelerator pedal of a vehicle; perform deceleration control according to an AP opening rate-target driving force characteristic; when an operation element is operated for deceleration in a state where pressing on the accelerator pedal has been released, change the characteristic to a second characteristic representing, for a deceleration force to be applied due to the release of pressing on the accelerator pedal, a second deceleration force larger than a first deceleration force that is based on the before-change characteristic; and terminate the deceleration control according to the second characteristic when a target driving force that is based on a result of applying the AP opening rate to the second characteristic has reached a target driving force that is to be applied at the release of pressing on the accelerator pedal according to the before-change characteristic.
    Type: Application
    Filed: May 30, 2023
    Publication date: December 7, 2023
    Inventors: Noriaki SUZUKI, Kazuya SAKURAI, Tetsuya SUKO
  • Publication number: 20230095519
    Abstract: A vehicle includes a regenerative brake of a rotating electric machine and a friction brake which is a mechanical brake as braking means for applying a braking force to rotations of the left and right wheels at the front and rear of the vehicle. The vehicle also includes an SOC information obtaining part that obtains an amount of charge (SOC) of a battery of the vehicle and an ECU. The ECU may include a VSA modulator and an ACC-ECU that generate, without a braking operation of the driver, a regenerative braking force with the regenerative brake and a friction braking force with the friction brake. The ECU prohibits an operation of the VSA modulator and/or an operation of the ACC-ECU according to a temperature of the friction brake and the amount of charge (SOC) of the battery.
    Type: Application
    Filed: September 26, 2022
    Publication date: March 30, 2023
    Inventors: Yoichi HOSHI, Kazuya SAKURAI
  • Patent number: 9037375
    Abstract: Provided is a vehicle brake system capable of reducing a sense of discomfort felt by a driver, even if a transmission is shifted when a braking force holding function for keeping a vehicle stationary is in operation. A vehicle brake system includes a control system capable of determining whether an automatic transmission is set in a driving mode or in a non-driving mode, and is capable of operating the braking force holding function for keeping the vehicle stationary by holding a braking force generated through a brake pedal operation. Further, the control system operates the braking force holding function when a vehicle speed becomes lower than a predetermined threshold value by the braking force generated through the brake pedal operation, and if the control system determines that the automatic transmission is set in a non-driving mode, the control unit increases the braking force and holds the braking force.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: May 19, 2015
    Assignee: Honda Motor Co., Ltd.
    Inventors: Shunpei Tahara, Tohru Ikeda, Kazuya Sakurai, Yoshinari Sugita
  • Publication number: 20140350816
    Abstract: Provided is a vehicle brake system capable of reducing a sense of discomfort felt by a driver, even if a transmission is shifted when a braking force holding function for keeping a vehicle stationary is in operation. A vehicle brake system includes a control system capable of determining whether an automatic transmission is set in a driving mode or in a non-driving mode, and is capable of operating the braking force holding function for keeping the vehicle stationary by holding a braking force generated through a brake pedal operation. Further, the control system operates the braking force holding function when a vehicle speed becomes lower than a predetermined threshold value by the braking force generated through the brake pedal operation, and if the control system determines that the automatic transmission is set in a non-driving mode, the control unit increases the braking force and holds the braking force.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 27, 2014
    Applicant: Honda Motor Co., Ltd.
    Inventors: Shunpei TAHARA, Tohru IKEDA, Kazuya SAKURAI, Yoshinari SUGITA
  • Publication number: 20070239334
    Abstract: A turning motion control system for a vehicle includes an actuator, and an actuator control device for controlling the actuator so that an actual turning motion state of the vehicle becomes close to a target turning motion state. The actuator control device is designed so that its control-permitted state and its control-stopped state can be switched from one to another through a switching device operated by a driver. When an air-pressure decreased state detecting device has detected an air-pressure decreased state, the actuator control device carries out the control of the operation of the actuator, irrespective of a switching mode of the switching device. Thus, even if an air-pressure decrease or an abnormality is generated in any of wheels in a state in which the turning motion control by the actuator has been stopped, the stability of the vehicle can be ensured.
    Type: Application
    Filed: May 31, 2007
    Publication date: October 11, 2007
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Nobuyuki Imaizumi, Yoshihiro Iwagawa, Susumu Ohta, Kazunari Okada, Hironobu Kiryu, Kazuya Sakurai, Masakazu Shiraishi, Tomoaki Sugano, Toshio Yahagi
  • Patent number: 7260459
    Abstract: A turning motion control system for a vehicle includes an actuator, and an actuator control device for controlling the actuator so that an actual turning motion state of the vehicle becomes close to a target turning motion state. The actuator control device is designed so that its control-permitted state and its control-stopped state can be switched from one to another through a switching device operated by a driver. When an air-pressure decreased state detecting device has detected an air-pressure decreased state, the actuator control device carries out the control of the operation of the actuator, irrespective of a switching mode of the switching device. Thus, even if an air-pressure decrease or an abnormality is generated in any of wheels in a state in which the turning motion control by the actuator has been stopped, the stability of the vehicle can be ensured.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: August 21, 2007
    Assignee: Honda Motor Co., Ltd.
    Inventors: Nobuyuki Imaizumi, Yoshihiro Iwagama, Susumu Ohta, Kazunari Okada, Hironobu Kiryu, Kazuya Sakurai, Masakazu Shiraishi, Tomoaki Sugano, Toshio Yahagi
  • Publication number: 20050159867
    Abstract: A turning motion control system for a vehicle includes an actuator, and an actuator control device for controlling the actuator so that an actual turning motion state of the vehicle becomes close to a target turning motion state. The actuator control device is designed so that its control-permitted state and its control-stopped state can be switched from one to another through a switching device operated by a driver. When an air-pressure decreased state detecting device has detected an air-pressure decreased state, the actuator control device carries out the control of the operation of the actuator, irrespective of a switching mode of the switching device. Thus, even if an air-pressure decrease or an abnormality is generated in any of wheels in a state in which the turning motion control by the actuator has been stopped, the stability of the vehicle can be ensured.
    Type: Application
    Filed: November 8, 2004
    Publication date: July 21, 2005
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Nobuyuki Imaizumi, Yoshihiro Iwagawa, Susumu Ohta, Kazunari Okada, Hironobu Kiryu, Kazuya Sakurai, Masakazu Shiraishi, Tomoaki Sugano, Toshio Yahagi
  • Patent number: 6760688
    Abstract: An appliance maintenance apparatus for contactlessly detecting the operation states of appliances and operating the appliances in response to the operation states of the appliances, and an appliance remote maintenance system which comprises a plurality of appliance maintenance apparatuses, and a remote diagnosis control apparatus which is communicatable with the appliance maintenance apparatus through a public network to ensure the remote diagnosis control of the appliance maintenance apparatus from a remote place.
    Type: Grant
    Filed: June 27, 2001
    Date of Patent: July 6, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuya Suzuki, Toshikazu Saito, Kazuya Sakurai
  • Publication number: 20040080543
    Abstract: A plurality of menus formed in a hierarchical structure is displayed on a liquid-crystal display portion. The menus displayed on the liquid-crystal display portion are selected by direction buttons. The execution of the menu being displayed on the liquid-crystal display portion can be selected by an execution instructing button, and can be set in a direct execution menu by a setting button. The direct execution menu is assigned to a direct-execution instructing button. The execution can be selected directly by pressing the relevant direct-execution instructing button, i.e., without effecting the operation of searching the target menu by displaying lower-level menus consecutively starting with the highest-level menu. The electronic device is capable of directly executing a menu at an arbitrary level from among a plurality of menus formed in a hierarchical structure.
    Type: Application
    Filed: October 16, 2003
    Publication date: April 29, 2004
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kazuya Sakurai, Takao Koishi
  • Publication number: 20010056336
    Abstract: Herein disclosed an appliance maintenance apparatus for contactlessly detecting the operation states of appliances, and can operate the appliances in response to the operation states of the appliances, and an appliance remote maintenance system which comprises a plurality of appliance maintenance apparatuses, and a remote diagnosis control apparatus which is communicatable with the appliance maintenance apparatus through a public network to ensure the remote diagnosis control of the appliance maintenance apparatus from a remote place. The appliance maintenance apparatus according to the present invention is constituted partly by a plurality of light receiving elements 125 respectively arranged in face-to-face and space relationship with the LED light indicators 5 and reset switch operating means 129 to operate the reset switch 9.
    Type: Application
    Filed: June 27, 2001
    Publication date: December 27, 2001
    Inventors: Kazuya Suzuki, Toshikazu Saito, Kazuya Sakurai
  • Patent number: 5810456
    Abstract: A brake system for a vehicle includes a liquid pressure generating device for generating a liquid pressure dependent upon a manual operation, actuators having output ports for outputting a liquid pressure dependent upon an electrical command signal from a controller, and which are adapted to be connected to a reservoir when the actuators are non-operative, and switchover valves switchable between a state in which wheel brakes are connected to the liquid pressure generating device, and a state in which the wheel brakes are connected to the actuators. In the brake system, on-off valves are connected between the output ports of the actuators and the switchover valves, and are opened when the liquid pressures output from the actuators is equal to or higher than a predetermined value.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: September 22, 1998
    Assignees: Honda Giken Kogyo Kabushiki Kaisha, Nissin Kogyo Co., Ltd.
    Inventors: Hiromi Inagaki, Yoshimichi Kawamoto, Kazuya Sakurai, Wataru Saito, Masaaki Kitazawa
  • Patent number: 5613740
    Abstract: A brake system for a vehicle includes a master cylinder for outputting a liquid pressure corresponding to a braking operation quantity, an electric actuator capable of outputting the liquid pressure corresponding to the braking operation quantity, and a switch-over valve capable of switching the connection and disconnection between the master cylinder and wheel brake. The electric actuator is connected to the wheel brake to block the back flow of a working liquid from the wheel brake. Braking pressure applied to the wheel brake is detected by pressure detector. When a difference between the detected braking pressure and a target braking pressure corresponding to the braking operation quantity exceeds a predetermined range, an output liquid pressure from the master cylinder is applied to the wheel brake.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: March 25, 1997
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoshimichi Kawamoto, Hiromi Inagaki, Kazuya Sakurai, Shinji Suto
  • Patent number: 5474369
    Abstract: A braking force control system of a vehicle, capable of independently controlling at least braking forces of front wheel brakes, a braking force of a left rear wheel brake and a braking force of a right rear wheel brake. The braking force control system includes front wheel-side controls for controlling the braking forces of the front wheel brakes on the basis of a quantity of operation of a brake operating member and a deceleration of the vehicle, and rear wheel-side controls for independently controlling the braking forces of the left rear wheel brake and the right rear wheel brake on the basis of a turning level of the vehicle. Thus, it is possible to provide a sufficient braking force, while stabilizing the behavior of the vehicle, during braking in a turning state of the vehicle, by conducting a control of deceleration for the front wheels increased in load during braking, and by conducting a control of turning for the rear wheels largely contributing to the control of turning.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: December 12, 1995
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiromi Inagaki, Wataru Saito, Kazuya Sakurai, Yoshimichi Kawamoto, Shinji Suto
  • Patent number: 5435634
    Abstract: An anti-lock control method for a vehicle includes the steps of: calculating an operation control quantity on the basis of a braking pressure at the start of an anti-lock control when a wheel is about to be locked during braking, and controlling the operation of an actuator, capable of adjusting the braking force of a wheel brake by the operation control quantity in order to reduce the braking force. In this process, the braking pressure at the start of anti-lock control is corrected with the locking tendency of the wheel to set an adjusted reference braking pressure, and the operation control quantity is calculated on the basis of the adjusted reference braking pressure. Thus, it is possible to determine the reference braking pressure with good accuracy, leading to an enhanced accuracy of the anti-lock control.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: July 25, 1995
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Shinji Suto, Yoshiyuki Sugimoto, Hiromi Inagaki, Kazuya Sakurai
  • Patent number: 5375917
    Abstract: A braking force control system of a vehicle includes a deviation reference control quantity determining device for determining an operation control quantity for the actuator on the basis of a deviation between a target deceleration determined on the basis of a quantity of operation of a brake operating member and a detected deceleration of the vehicle. In this control system, the level of operation speed is judged in accordance with whether or not the variation per unit time in quantity of operation of the brake operating member exceeds a preset value.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: December 27, 1994
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiromi Inagaki, Wataru Saito, Kazuya Sakurai, Yoshimichi Kawamoto
  • Patent number: 5248190
    Abstract: A hydraulic braking pressure control system for a vehicle comprises a master cylinder (M) operatively connected to a brake pedal (P), an operation-amount detector (S) for detecting the amount by which the brake pedal is operated, a hydraulic pressure control unit (2.sub.FL etc.) for controlling the hydraulic pressure to be applied to a brake device (B.sub.FL etc.) mounted on a wheel in accordance with an applied quantity of electricity, and a control circuit (3) for controlling the quantity of electricity to be applied to the hydraulic pressure control unit, in accordance with a detection value provided by the operation-amount detector. The system further includes a cut-off valve (30.sub.FL etc.) adapted to be closed in response to depression of the brake pedal, and a reservoir (R.sub.2) connected through the cut-off valve to an oil passage (27) connecting the hydraulic pressure control unit and the brake device.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: September 28, 1993
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Makoto Sato, Hiromi Inagaki, Wataru Saito, Kazuya Sakurai, Koichi Hagiwara, Makoto Horiuchi
  • Patent number: 5186525
    Abstract: A hydraulic braking pressure control system includes a shut-off valve (4) which is provided in an oil passage (58) connecting a brake device with an output port in a master cylinder and which is brought into a closed state by a control circuit when a braking operation is detected by an operation-amount detector, and a locking device (5) for inhibiting the closing of the shut-off valve when the output hydraulic pressure from a hydraulic pressure supply source in equal to or less than a predetermined value. The shut-off valve is opened when there is no braking operation, thereby ensuring that even if a hydraulic pressure is delivered from a hydraulic pressure control valve when there is no braking operation, such hydraulic pressure can be released into a reservoir.
    Type: Grant
    Filed: August 9, 1991
    Date of Patent: February 16, 1993
    Assignees: Honda Giken Kogyo Kabushiki Kaisha, Nissin Kogyo Kabushiki Kaisha
    Inventors: Makoto Sato, Hiromi Inagaki, Wataru Saito, Kazuya Sakurai, Koichi Hagiwara, Makoto Horiuchi