Patents by Inventor Masaru Sakai

Masaru Sakai 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: 20220012387
    Abstract: An information processing device includes a storage unit and a processing circuit. The storage unit is configured to store a first variable and a second variable. The processing circuit is configured to update the first variable based on the second variable, which corresponds to the first variable, weight the first variable with a first coefficient and add the weighted first variable to the corresponding second variable, calculate a problem term using the plurality of first variables, add the problem term to the second variable, calculate a first correction term including a product of a constraint term and a second coefficient, add the first correction term to the second variable, and increase absolute values of the first coefficient and the second coefficient depending on the number of updates. The constraint term is based on a constraint condition and has the first variable as an argument.
    Type: Application
    Filed: September 28, 2021
    Publication date: January 13, 2022
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA DIGITAL SOLUTIONS CORPORATION
    Inventors: Masaru SUZUKI, Hayato GOTO, Kosuke TATSUMURA, Kotaro ENDO, Yoshisato SAKAI
  • Publication number: 20210394204
    Abstract: A vehicle washing device includes: a cylinder including a cylinder tube to which a washing fluid is supplied; a piston including a piston tube that is movably inserted into the cylinder tube and opens at both ends; and a spray nozzle that is mounted at a leading end, in an extension direction, of the piston tube protruding from the cylinder tube. The spray nozzle is configured to spray the washing fluid, supplied through the inside of the piston tube, toward an object-to-be-washed. The outer circumference of the spray nozzle is fitted on the inner circumference of the piston tube.
    Type: Application
    Filed: June 16, 2021
    Publication date: December 23, 2021
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru SAKAI, Yasuhiro ICHIKAWA
  • Publication number: 20210362688
    Abstract: A vehicle cleaner system includes: a cleaner unit configured to be mounted on a vehicle and to discharge a cleaning liquid to an external sensor that acquires information outside the vehicle so as to clean the external sensor; and a cleaner control unit configured to control the cleaner unit. The cleaner control unit is configured to acquire vehicle speed information related to a traveling speed of the vehicle, and control the cleaner unit such that at least one of a discharge amount of the cleaning liquid, a discharge amount of the cleaning liquid per unit time, the number of times of discharge of the cleaning liquid, the number of times of discharge of the cleaning liquid per unit time, and a discharge time of the cleaning liquid varies according to the vehicle speed information.
    Type: Application
    Filed: March 6, 2019
    Publication date: November 25, 2021
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Kazuki KAWAMURA, Akinobu KUBOTA, Masaru SAKAI, Masaaki SATO
  • Patent number: 11142139
    Abstract: A vehicle trim structure includes a flange provided at a vehicle trim and configured to contact a counterpart member, wherein an end portion of the flange that is configured to contact the counterpart member is formed from a soft material, and a contact face of the end portion is configured with a circular arc-shaped cross-section profile.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: October 12, 2021
    Assignee: NIFCO INC.
    Inventors: Masaru Sakai, Kentaro Ahiko, Kimiharu Mishima
  • Patent number: 11097650
    Abstract: An integrated lamp-and-camera module (1) includes: a pair of license plate lamps (10R, 10L) that are disposed in a left-right direction of a license plate (LP) of a vehicle (VE), and apply light to the license plate (LP); a first camera (20) and a second camera (30) that are disposed between the pair of license plate lamps (10R, 10L) to capture an image of a rear side of the vehicle (VE); and a housing (70) to which the respective license plate lamps (10R, 10L), the first rear view camera (20), and the second camera (30) are attached. The housing (70) is attached to a vehicle body.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: August 24, 2021
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Masayuki Kondo, Hikaru Nagai, Masaru Sakai
  • Publication number: 20210179030
    Abstract: The vehicular cleaner system is provided with: a tank (2) for storing a cleaning fluid; a motor pump (3) for pumping out the cleaning fluid in the tank (2); lighting fixture nozzles (4) for spraying the cleaning fluid toward headlamps (100); sensor nozzles (5) for spraying the cleaning fluid toward on-board sensors (200); a cleaning fluid passage (9) that connects the motor pump (3) to the lighting fixture nozzles (4) and the sensor nozzles (5); and a controller (8) for controlling the spraying of the cleaning fluid.
    Type: Application
    Filed: January 16, 2018
    Publication date: June 17, 2021
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru SAKAI, Yasuhiro ICHIKAWA
  • Publication number: 20210078544
    Abstract: A vehicular washing device includes: a nozzle (4); a flow passage forming body (2) of which an internal space is a flow passage of a fluid; and a valve (21) that has a pressing tube part (22) with an axial direction coinciding with a flow direction of the fluid, is elastically deformable in a direction in which the diameter of the pressing tube part changes, and opens and closes the flow passage according to the state of deformation. A first flow passage (2a) and a second flow passage (2b) are formed as the flow passage on opposite sides of the pressing tube part. A shaft (9) with which the pressing tube part is capable of coming into close contact is located inside the valve. The valve deforms elastically according to the magnitude of the pressure of the first flow passage or the pressure of the second flow passage relative to an atmospheric pressure.
    Type: Application
    Filed: September 11, 2018
    Publication date: March 18, 2021
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Hiroaki KIMURA, Masaru SAKAI
  • Publication number: 20210039670
    Abstract: A vehicle cleaner system are mounted on an autonomous driving vehicle including a vehicle control unit capable of selectively executing an autonomous driving mode and a manual driving mode. The vehicle cleaner system includes: a cleaner unit configured to clean an external sensor; and a cleaner control unit configured to control the cleaner unit. When the vehicle control unit switches from the manual driving mode to the autonomous driving mode, the vehicle control unit is configured such that, after the cleaner control unit causes the cleaner unit to clean the external sensor or after a diagnosis is performed to ascertain whether or not the external sensor needs to be cleaned, the manual driving mode is switched to the autonomous driving mode.
    Type: Application
    Filed: March 7, 2019
    Publication date: February 11, 2021
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru SAKAI, Kazuki KAWAMURA, Akinobu KUBOTA, Masaaki SATO
  • Publication number: 20210031727
    Abstract: A vehicle cleaner system includes a front LiDAR and a front camera, which are external sensors that acquire information on an outside of a vehicle, a cleaner unit, a front tank that stores the cleaning liquid, and a cleaner control unit that controls the cleaner unit. The cleaner unit includes a front LiDAR cleaner that discharge the cleaning liquid to clean the front LiDAR, and a front camera cleaner that discharges the cleaning liquid to clean the front camera. The cleaner control unit is configured to be capable of outputting a remaining amount insufficiency prediction signal to a vehicle control unit, which controls traveling of the vehicle, when the cleaning liquid in the front tank is equal to or less than a predetermined amount.
    Type: Application
    Filed: March 15, 2019
    Publication date: February 4, 2021
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru SAKAI, Masaaki SATO, Kazuki KAWAMURA
  • Publication number: 20200406864
    Abstract: A vehicle cleaner system includes: a cleaner unit mounted on a vehicle and configured to clean an external sensor acquiring information on outside of the vehicle; an advanced notification information acquiring unit configured to acquire expressway advanced notification information notifying that the vehicle has arrived within a predetermined distance from an entrance of an expressway; and a cleaner control unit configured to, when the advanced notification information acquiring unit has acquired the expressway advanced notification information, control the cleaner unit to clean the external sensor or diagnose whether or not the external sensor needs to be cleaned by the cleaner unit.
    Type: Application
    Filed: March 4, 2019
    Publication date: December 31, 2020
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru SAKAI, Kazuki KAWAMURA, Akinobu KUBOTA, Masaaki SATO
  • Publication number: 20200247367
    Abstract: This vehicle sensor system includes an on-board sensor (6f) that can be attached to a vehicle via an aiming mechanism (40); and a cleaner (50) that has a nozzle (103) for spraying a cleaning medium onto the vehicle sensor (6f). The nozzle (103) is attached to a component (21) the position of which changes in accordance with vehicle sensor (6f) aiming.
    Type: Application
    Filed: September 13, 2018
    Publication date: August 6, 2020
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Masaru SAKAI
  • Publication number: 20200180567
    Abstract: A vehicle cleaner system that includes a single pump and a plurality of cleaners which are connected to the single pump and clean different cleaning target objects with a cleaning medium is disclosed. The cleaning target objects include a sensor which detects information on outside of a vehicle and a cleaner control unit which operates the plurality of cleaners in accordance with input of a signal. The cleaner control unit is capable of operating the plurality of cleaners such that cleaning methods of the plurality of cleaners are different from each other.
    Type: Application
    Filed: May 18, 2018
    Publication date: June 11, 2020
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru Sakai, Masayuki Kondo, Kazuki Kawamura, Akinobu Kubota
  • Publication number: 20200171998
    Abstract: An integrated lamp-and-camera module (1) includes: a pair of license plate lamps (10R, 10L) that are disposed in a left-right direction of a license plate (LP) of a vehicle (VE), and apply light to the license plate (LP); a first camera (20) and a second camera (30) that are disposed between the pair of license plate lamps (10R, 10L) to capture an image of a rear side of the vehicle (VE); and a housing (70) to which the respective license plate lamps (10R, 10L), the first rear view camera (20), and the second camera (30) are attached. The housing (70) is attached to a vehicle body.
    Type: Application
    Filed: December 5, 2017
    Publication date: June 4, 2020
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masayuki KONDO, Hikaru NAGAI, Masaru SAKAI
  • Publication number: 20200139939
    Abstract: A vehicle cleaner system includes: a window washer configured to clean a front window of a vehicle; a lamp cleaner configured to clean a headlamp; a sensor cleaner configured to clean a sensor that detects information outside the vehicle; and a cleaner control unit configured to operate at least one of the window washer, the lamp cleaner, and the sensor cleaner in accordance with input of a signal. The cleaner control unit is configured to operate the window washer, the lamp cleaner, and the sensor cleaner such that at least two or more of a number of operations of the window washer, a number of operations of the lamp cleaner, and a number of operations of the sensor cleaner are different in accordance with a predetermined number of signals.
    Type: Application
    Filed: June 12, 2018
    Publication date: May 7, 2020
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Akinobu Kubota, Masayuki Kondo, Kazuki Kawamura, Masaru Sakai
  • Publication number: 20200094752
    Abstract: A vehicle trim structure includes a flange provided at a vehicle trim and configured to contact a counterpart member, wherein an end portion of the flange that is configured to contact the counterpart member is formed from a soft material, and a contact face of the end portion is configured with a circular arc-shaped cross-section profile.
    Type: Application
    Filed: September 24, 2019
    Publication date: March 26, 2020
    Inventors: Masaru SAKAI, Kentaro AHIKO, Kimiharu MISHIMA
  • Publication number: 20190283715
    Abstract: A vehicle cleaner nozzle injects a cleaning medium on an object to be cleaned which is mounted on a vehicle. The vehicle cleaner nozzle includes a housing, a nozzle tip accommodated in an interior of the housing, and a holder configured to support the housing in a state where the housing accommodates the nozzle tip. A feedback flow path for swinging and injecting the cleaning medium is formed by accommodating the nozzle tip in the housing.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 19, 2019
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Masaru Sakai
  • Publication number: 20190283716
    Abstract: A vehicular system includes a first in-vehicle sensor having a first cleaning target surface which is provided on a design part forming an appearance of a vehicle and arranged so as to face an exterior of the vehicle. The first cleaning target surface is arranged at an inner side of the vehicle than an immediate upper portion of the first cleaning target surface. The immediate upper portion is constituted by a protrusion provided in a rear bumper.
    Type: Application
    Filed: March 8, 2019
    Publication date: September 19, 2019
    Inventors: Masaru Sakai, Masaaki Sato
  • Patent number: 10311984
    Abstract: The shaft sealing structure includes a seal ring that has abutment portions formed by dividing the seal ring along the axial direction and that is provided around a main shaft in a ring-like manner; a support member that is provided in the seal ring along the circumferential direction of the main shaft; and a thermoswitch that is connected to the support member between the abutment portions and that presses the support member toward the center of the main shaft when the temperature rises to a temperature higher than that during normal operation, in which the seal ring is fixed at a position separated from the main shaft during the normal operation and is moved by the support member toward the center of the main shaft when the temperature rises to a temperature higher than that during the normal operation.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: June 4, 2019
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Kentarou Saeki, Hidekazu Uehara, Akihiko Umeda, Masaru Sakai, Hiroshi Kuzumi, Yasuhiro Ikeda, Toshihiko Matsuo, Takanobu Otani, Hiroomi Sakuma, Hitoshi Ito, Yasushi Takayama, Tomoki Hanada, Yuji Harada
  • Publication number: 20190084530
    Abstract: A vehicle cleaning apparatus includes a nozzle configured to jet fluid toward an object to be cleaned; a cover configured to cover at least a part of the nozzle; a valve configured to open and close a channel of the fluid; and a holder including a valve disposition portion in which at least a part of the valve is disposed, and a cover attachment portion to which the cover is attached. The cover attachment portion is formed integrally with the valve disposition portion.
    Type: Application
    Filed: September 18, 2018
    Publication date: March 21, 2019
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Hiroaki KIMURA, Masaru SAKAI
  • Patent number: 10068575
    Abstract: According to an embodiment, an information notification supporting device includes an analyzer configured to analyze an input voice so as to identify voice information indicating information related to speech; a storage unit configured to store therein a history of the voice information; an output controller configured to determine, using the history of the voice information, whether a user is able to listen to a message of which the user should be notified; and an output unit configured to output the message when it is determined that the user is in a state in which the user is able to listen to the message.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: September 4, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroko Fujii, Masaru Suzuki, Kazuo Sumita, Masaru Sakai, Masahide Ariu