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: 20240097508
    Abstract: A rotary electric machine (1000) including: a rotor (200); a stator (100) surrounding a periphery of the rotor (200); a first recessed portion (133) disposed in an inner circumferential surface of a back yoke (130) of the stator (100), and extending in an axial direction of the stator (100); and a tooth (120) having one end fitted in the first recessed portion (133), a clearance formed between the first recessed portion (133) and the one end of the tooth (120) fitted in the first recessed portion (133) being smaller in a circumferential direction of the stator (100) than in a radial direction of the stator (100).
    Type: Application
    Filed: November 24, 2021
    Publication date: March 21, 2024
    Inventors: Hirooki TOKOI, Mizuki NAKAHARA, Toshifumi SUZUKI, Masaru AMAIKE, Shuuichi TAKAHASHI, Yasuei YONEOKA, Toru SAKAI
  • Publication number: 20240086300
    Abstract: Provided is a service graph analysis device 10 which detects anomalies of a monitored service 100 that implements specific features by a chained operation of multiple components. The service graph analysis device 10 includes an extraction unit 11 configured to extract a processing start event and a processing end event from monitoring data and generate a firing sequence arranging the events in chronological order, the monitoring data including information on a series of processing in the monitored service 100; and a detection unit 12 configured to determine whether the event arranged in the firing sequence can be fired in a service graph illustrating a dependency between components constituting the monitored service 100, and detect anomalies in a case where there is a non-fired event.
    Type: Application
    Filed: January 8, 2021
    Publication date: March 14, 2024
    Inventors: Masaru Sakai, Kensuke TAKAHASHI
  • Patent number: 11912246
    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: Grant
    Filed: September 13, 2018
    Date of Patent: February 27, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Masaru Sakai
  • Patent number: 11915951
    Abstract: A plasma processing apparatus includes a stage disposed in a processing chamber for mounting a wafer, a plasma generation chamber disposed above the processing chamber for plasma generation using process gas, a plate member having multiple introduction holes, made of a dielectric material, disposed above the stage and between the processing chamber and the plasma generation chamber, and a lamp disposed around the plate member for heating the wafer. The plasma processing apparatus further includes an external IR light source, an emission fiber arranged in the stage, that outputs IR light from the external IR light source toward a wafer bottom, and a light collection fiber for collecting IR light from the wafer. Data obtained using only IR light from the lamp is subtracted from data obtained also using IR light from the external IR light source during heating of the wafer. Thus, a wafer temperature is determined.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: February 27, 2024
    Assignee: HITACHI HIGH-TECH CORPORATION
    Inventors: Hiroyuki Kobayashi, Nobuya Miyoshi, Kazunori Shinoda, Tatehito Usui, Naoyuki Kofuji, Yutaka Kouzuma, Tomoyuki Watanabe, Kenetsu Yokogawa, Satoshi Sakai, Masaru Izawa
  • Publication number: 20240042968
    Abstract: A vehicle cleaning device includes a cylinder to which a cleaning fluid is supplied; a piston slidably inserted in the cylinder; a spray nozzle unit mounted at a leading end of the piston and configured to spray the cleaning fluid toward an object-to-be-cleaned; and a cap that closes a gap between the cylinder and the piston in an opening of the cylinder through which the piston protrudes. The cap includes a tubular part inside the cylinder, and the tubular part defines an end of movement of the piston. A communication hole is provided between a communication groove provided in an outer peripheral surface of the tubular part and an inner peripheral surface of the cylinder, and the gap between the cylinder and the piston communicates with the outside of the cylinder through the communication hole.
    Type: Application
    Filed: October 20, 2023
    Publication date: February 8, 2024
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru SAKAI, Yasuhiro ICHIKAWA
  • Publication number: 20240019862
    Abstract: Provided is a control device 10 for controlling an operation phase of a maintenance control system, wherein the system performs maintenance on a monitored service 100 implementing specific features by means of a chained operation of multiple components using a service graph illustrating a dependency between components constituting the monitored service 100. The control device 10 includes an acquisition unit 11 configured to acquire update information of the monitored service 100, a determination unit 13 configured to determine update convergence of the service graph, and a control unit 12 configured to shift the operation phase to a learning phase in which the service graph is updated when the update information has been received, and shift the operation phase to a detection phase in which anomalies are detected using the service graph when it is determined that the update of the service graph has converged.
    Type: Application
    Filed: January 8, 2021
    Publication date: January 18, 2024
    Inventors: Masaru Sakai, Kensuke TAKAHASHI
  • Patent number: 11845092
    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: Grant
    Filed: June 16, 2021
    Date of Patent: December 19, 2023
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru Sakai, Yasuhiro Ichikawa
  • Patent number: 11840203
    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: Grant
    Filed: September 11, 2018
    Date of Patent: December 12, 2023
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Hiroaki Kimura, Masaru Sakai
  • Publication number: 20230391293
    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: August 21, 2023
    Publication date: December 7, 2023
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru SAKAI, Kazuki KWAMURA, Akinobu Kubota, Massaki SATO
  • Patent number: 11827186
    Abstract: A vehicle cleaning device includes a cylinder to which a cleaning fluid is supplied; a piston slidably inserted in the cylinder; a spray nozzle unit mounted at a leading end of the piston and configured to spray the cleaning fluid toward an object-to-be-cleaned; and a cap that closes a gap between the cylinder and the piston in an opening of the cylinder through which the piston protrudes. The cap includes a tubular part inside the cylinder, and the tubular part defines an end of movement of the piston. A communication hole is provided between a communication groove provided in an outer peripheral surface of the tubular part and an inner peripheral surface of the cylinder, and the gap between the cylinder and the piston communicates with the outside of the cylinder through the communication hole.
    Type: Grant
    Filed: October 4, 2021
    Date of Patent: November 28, 2023
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru Sakai, Yasuhiro Ichikawa
  • Patent number: 11772612
    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: Grant
    Filed: March 4, 2019
    Date of Patent: October 3, 2023
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru Sakai, Kazuki Kawamura, Akinobu Kubota, Masaaki Sato
  • Patent number: 11752979
    Abstract: A method of assembling a vehicle cleaner nozzle provided in a vicinity of a leading end of a piston accommodated to be movable forward and backward with respect to a cylinder so as to inject a cleaning medium on an object to be cleaned which is mounted on a vehicle includes: assembling a nozzle chip to a housing along a first direction so as to form a feedback flow path for swinging and injecting the cleaning medium by accommodating the nozzle chip in an interior of the housing; and assembling the housing in a state where the housing accommodates the nozzle chip to a holder supported by the piston along the first direction.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: September 12, 2023
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Masaru Sakai
  • Patent number: 11748226
    Abstract: Provided is a service graph generation apparatus 10 for generating a service graph expressing a dependency relationship between components constituting a monitoring target service 50. The service graph generation apparatus 10 includes an acquisition unit 11 that acquires trace data including spans recording a parent-child relationship and time data of processing of components in a series of processing in a service, an analysis unit 13 that compares, for every piece of the trace data, time data between spans of the components having the same parent to estimate an order relationship or an exclusive relationship between the components, and a creation unit 14 that creates a service graph expressing all components formed of the monitoring target service 50, and the parent-child relationship, the order relationship, and the exclusive relationship between the components.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: September 5, 2023
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Masaru Sakai, Satoshi Kondo, Kensuke Takahashi
  • Patent number: 11679742
    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: Grant
    Filed: March 8, 2019
    Date of Patent: June 20, 2023
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Masaru Sakai, Masaaki Sato
  • Publication number: 20230095379
    Abstract: A branching tool serving as a check valve incorporated in a cleaner device includes: a main unit provided with an inflow channel and a first outflow channel; a sealing member that allows a flow of cleaning fluid from the inflow channel to the first outflow channel when the cleaner device is in operation and that is formed to seal a backflow of the cleaning fluid from the first outflow channel to the inflow channel when the cleaner device is not in operation; and a lid member that is combined with the main unit so as to form a housing chamber for the sealing member. The lid member has a communication hole that allows the housing chamber to communicate with the outside. The lid member or the main unit is provided with a water receiving recess arranged around the communication hole.
    Type: Application
    Filed: December 7, 2022
    Publication date: March 30, 2023
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Takahiro MATSUNAGA, Masaru SAKAI, Yasuhiro ICHIKAWA
  • Publication number: 20230082956
    Abstract: Provided is a service graph generation apparatus 10 for generating a service graph expressing a dependency relationship between components constituting a monitoring target service 50. The service graph generation apparatus 10 includes an acquisition unit 11 that acquires trace data including spans recording a parent-child relationship and time data of processing of components in a series of processing in a service, an analysis unit 13 that compares, for every piece of the trace data, time data between spans of the components having the same parent to estimate an order relationship or an exclusive relationship between the components, and a creation unit 14 that creates a service graph expressing all components formed of the monitoring target service 50, and the parent-child relationship, the order relationship, and the exclusive relationship between the components.
    Type: Application
    Filed: February 19, 2020
    Publication date: March 16, 2023
    Inventors: Masaru SAKAI, Satoshi KONDO, Kensuke TAKAHASHI
  • Publication number: 20230068467
    Abstract: An agent device 1 of a monitoring system 5 includes: an acquisition unit 22 that sequentially acquires monitored values from a processing unit 21; a removal unit 23 that generates denoised monitored values by removing noise from the monitored values; and a transmission unit that transmits the denoised monitored values to a manager device 2. The manager device 2 includes a determination unit 62 that determines the monitoring interval, at which monitored values are acquired from the agent device 1, by referencing the denoised monitored values acquired from the agent device 1.
    Type: Application
    Filed: November 12, 2019
    Publication date: March 2, 2023
    Inventors: Masaru Sakai, Kensuke TAKAHASHI, Satoshi KONDO
  • Patent number: 11427163
    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: Grant
    Filed: June 12, 2018
    Date of Patent: August 30, 2022
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Akinobu Kubota, Masayuki Kondo, Kazuki Kawamura, Masaru Sakai
  • Publication number: 20220227333
    Abstract: A vehicular air curtain device configured to send continuously, based on an operation signal, air to a sensor or a sensor cover mounted on a vehicle at a predetermined wind speed or a predetermined air flow rate in order to prevent dirt from adhering to the sensor or the sensor cover, the vehicular air curtain device includes: an air blowing mechanism; a motor configured to drive the air blowing mechanism; and an air curtain control unit configured to change a drive voltage or a drive current of the motor in accordance with a predetermined condition.
    Type: Application
    Filed: June 8, 2020
    Publication date: July 21, 2022
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Takahiro MATSUNAGA, Akinobu KUBOTA, Masaaki SATO, Masaru SAKAI, Yasuhiro ICHIKAWA, Kazuhiro SUZUKI, Yusuke FUNAMI, Toshihisa HAYAMI
  • Publication number: 20220129863
    Abstract: Visibility of a message transmitted from a maintenance object system is improved. A maintenance person support device 1 includes: a storage device 10 configured to store distribution rule data 11 in which a category of a message received from a processing unit 2 and an action name of an action corresponding to the message are associated with each other, and action definition data 12 in which the action name and a channel corresponding to the category as execution contents of the action are associated with each other; a message transmission/reception unit 21 configured to receive a message from the processing unit 2; an action execution unit 22 configured to acquire the action name corresponding to the category of the message from the distribution rule data 11 and acquire the execution contents corresponding to the acquired action name from the action definition data; and a user interface control unit 23 configured to display the message to the channel specified by the acquired execution contents.
    Type: Application
    Filed: January 30, 2020
    Publication date: April 28, 2022
    Inventors: Masaru SAKAI, Satoshi KONDO, Kensuke TAKAHASHI