Patents by Inventor Yuji Saito

Yuji Saito 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: 20240064462
    Abstract: In implementations of an audio system, when overheating of a speaker is detected, a controller controls first and second selectors to input an audio signal output by an audio source device to a cooling processing section and cause output of the cooling processing section to be output to the speaker. In the cooling processing section, a mixer mixes an audio signal obtained by removing a low-frequency component from the input audio signal by a high-pass filter with a cooling signal at an infrasonic frequency generated by a cooling signal generator and adjusted with a gain by a gain adjuster. An audio signal obtained by mixing the audio signal with the cooling signal is output from the cooling processing section via a nonlinear inverse filter. A gain setting section sets the gain such that power of the cooling signal matches power of the low-frequency component extracted by a low-pass filter.
    Type: Application
    Filed: August 1, 2023
    Publication date: February 22, 2024
    Applicant: ALPS ALPINE CO., LTD.
    Inventors: Yuji SAITO, Hiroyuki TAGUCHI, Katsuhiko EGAMI, Hiroki TOITA
  • Patent number: 11865560
    Abstract: A liquid ejection device includes: a nozzle including a nozzle opening through which a liquid is ejected; a liquid transfer tube through which the liquid is transferred to the nozzle; and a first tube with the nozzle and the liquid transfer tube being provided therein, having a first end and a second end, and having a first opening at the first end, in which the nozzle opening is positioned closer to a second end side than the first opening of the first tube, and when a position where the liquid ejected from the nozzle becomes a droplet is set as a droplet formation position, and a distance from the nozzle opening to the droplet formation position is set as a droplet formation distance, a distance between the nozzle opening and the first opening is equal to or greater than the droplet formation distance.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: January 9, 2024
    Inventors: Yuji Saito, Hirokazu Sekino, Takeshi Seto, Hideki Kojima, Takahiro Matsuzaki
  • Patent number: 11870355
    Abstract: The present disclosure includes a conversion circuit (10) having a switching element and converting DC voltage into AC voltage by switching operation of the switching element, an isolation transformer (3) for which an input side is connected to the conversion circuit (10), a rectifier circuit (4) connected to an outside of the isolation transformer (3), a resonance circuit connected to the output side of the isolation transformer (3), and a control circuit (100) for controlling the switching element, wherein the control circuit (100) turning on the switching element in a period when current flowing through resonance circuit flows from a low potential side terminal to a high potential side terminal of the switching element via the isolation transformer (3).
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: January 9, 2024
    Assignees: NISSAN MOTOR CO., LTD., RENAULT S.A.S.
    Inventors: Yusuke Zushi, Yosuke Tomita, Yuji Saito, Keisuke Takemoto, Shigeharu Yamagami
  • Publication number: 20230389232
    Abstract: An optical transceiver includes a case including a heat sink, one or more heat generating bodies disposed in the case, one or more heat conducting portions protruding from an inner wall surface of the case and thermally contacting the one or more heat generating bodies, and a heat pipe that transfers heat from the one or more heat conducting portions to the heat sink.
    Type: Application
    Filed: October 26, 2021
    Publication date: November 30, 2023
    Applicant: Fujikura Ltd.
    Inventors: Mohammad Shahed Ahamed, Yuji Saito, Akihiro Takamiya, Tsuyoshi Ogawa
  • Patent number: 11822075
    Abstract: A display device according to one aspect of the present invention includes: a display unit configured to have display information and emits visible light having a continuous spectrum; an infrared cut-off part configured to transmit the visible light from the display unit and to reduce the amount of infrared light striking the display unit; and a reflecting part configured to reflect the visible light having passed through the infrared cut-off part. The infrared cut-off part includes a first polymer film and a second polymer film, the first polymer film includes an infrared cut-off layer configured to reduce infrared light transmission, and the second polymer film includes a high-retardation polyester film and is disposed between the first polymer film and the display unit.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: November 21, 2023
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Yuji Saito, Noboru Iwata, Atsushi Ono, Kentaro Tamura
  • Publication number: 20230339230
    Abstract: A liquid ejection device includes: a head unit having at least one nozzle and configured to eject a liquid containing a solvent and a cleaning agent from the nozzle; and a liquid transport tube configured to transport the liquid to the head unit. A content of the cleaning agent in the liquid is 1% by weight or more. The liquid is ejected from the head unit in a continuous flow, and the continuous flow is converted into droplets to collide with the object in a form of droplets.
    Type: Application
    Filed: April 20, 2023
    Publication date: October 26, 2023
    Inventors: Hirokazu SEKINO, Yuji SAITO, Masaki KATO
  • Patent number: 11780221
    Abstract: A liquid ejection device includes: an ejecting unit configured to eject a liquid from a nozzle in a first direction; and a light source unit configured to emit light in a first optical path and a second optical path which are arranged such that the first optical path and the second optical path intersect on an extension line in the first direction from the nozzle. With the liquid ejection device having such a configuration, it becomes easy to eject the liquid at a position having a preferable interval with respect to an object.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: October 10, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Yuji Saito, Yasuyoshi Hama, Hideki Kojima
  • Patent number: 11745211
    Abstract: Provided is a liquid ejection device that includes a nozzle that ejects a liquid, a liquid conveying tube that conveys the liquid to the nozzle, an outer tube that is internally provided with the nozzle and the liquid conveying tube, and a first vibration applying unit that applies vibration to the nozzle or the liquid conveying tube. The first vibration applying unit is provided between the nozzle and the outer pipe or between the liquid conveying tube and the outer pipe.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: September 5, 2023
    Inventors: Takahiro Matsuzaki, Hirokazu Sekino, Hideki Kojima, Takeshi Seto, Yuji Saito
  • Publication number: 20230276185
    Abstract: A speaker has a magnetic angle sensor that detects the displacement of the vibration system of the speaker. A non-linearity compensation filter compensates for output distortion due to a non-linear parameter of the speaker. A transfer function of a linear inverse filter is applied so that output distortion is eliminated from the displacement, detected by the magnetic angle sensor, of the vibration system. A controller drives the speaker by using a test signal, and measures a response from the detected displacement of the vibration system. If error between the measured response and the theoretical value, theoretically determined from the design specifications, of the response is small, the controller uses the theoretical value, theoretically determined from the design specifications, of the non-linear parameter as an active non-linear parameter and sets, in the non-linearity compensation filter, a transfer function that compensates for distortion in an output due to the active non-linear parameter.
    Type: Application
    Filed: January 31, 2023
    Publication date: August 31, 2023
    Applicant: Alps Alpine Co., LTD
    Inventors: Yuji SAITO, Katsuhiko EGAMI, Hiroyuki TAGUCHI
  • Patent number: 11701886
    Abstract: A liquid ejection device includes: a nozzle through which a liquid is ejected; a liquid transfer tube through which the liquid is transferred to the nozzle; and a vibration generation unit configured to generate vibration, in which the vibration generation unit is in contact with one of the liquid, the nozzle, and the liquid transfer tube, and when the liquid ejected from the nozzle flies as a plurality of droplets in a state where the vibration generation unit does not generate vibration, and the number of the droplets passing through a predetermined position in a unit time is defined as a droplet frequency, a frequency of the vibration generated by the vibration generation unit is equal to or less than the droplet frequency.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: July 18, 2023
    Inventors: Hirokazu Sekino, Takeshi Seto, Hideki Kojima, Takahiro Matsuzaki, Yuji Saito
  • Publication number: 20230203252
    Abstract: A silicone rubber composition is provided. The composition comprises: (A) a straight chain organopolysiloxane having at least two alkenyl groups in a molecule; (B) a resinous organopolysiloxane containing: SiO4/2 unit, R12R2SiO1/2 unit and R13SiO1/2 unit, wherein R1 independently represents an alkyl group having 1 to 12 carbon atoms and R2 represents an alkenyl group having 2 to 12 carbon atoms, and containing 0.1 to 5.0 mass % of the alkenyl groups; (C) an organopolysiloxane having at least two silicon atom-bonded hydrogen atoms in a molecule; (D) a hydrosilylation reaction catalyst; (E) a reinforcing silica fine powder; and (F) an intumescent flame retardant. When the composition is coated on a woven material, such as a base material for an airbag or the like, the composition can provide the woven material with sufficient flame retardance even with a low coating amount, and the composition can suppress an aperture of the woven material.
    Type: Application
    Filed: April 27, 2021
    Publication date: June 29, 2023
    Inventors: Tomoko TASAKI, Yuji SAITO
  • Patent number: 11663539
    Abstract: A vehicle ride-sharing assist system includes a terminal including a user interface and a terminal processing unit; an action information managing server; and a ride-sharing managing server configured to create an operation schedule based on a desired ride-sharing condition, which includes at least one of a departure place, a departure time, an arrival place, and an arrival time of each user, transmitted from the terminal processing unit. The ride-sharing managing server is configured to set a recommended ride-sharing condition, which includes at least one of the departure place, the departure time, the arrival place, and the arrival time suitable for each user, based on the action information and transmit the recommended ride-sharing condition to the terminal processing unit. The terminal processing unit is configured to cause the user interface to display the recommended ride-sharing condition on receiving the recommended ride-sharing condition from the ride-sharing managing server.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: May 30, 2023
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Hiroyuki Tanabe, Yuji Saito, Toru Kimura, Kuniaki Matsushima
  • Publication number: 20230012785
    Abstract: In a speaker distortion correction device, an input signal passes through a nonlinear-portion correction filter and is input into a linear inverse filter. An output signal from the linear inverse filter is output into a speaker through an amplifier. For the nonlinear-portion correction filter, transfer characteristics (filter coefficients) are set that eliminate distortion due to nonlinear characteristics of the speaker. With a difference, as an error, between vibration of the speaker without distortion relative to an input signal and vibration of a vibration system of the speaker measured by a vibration measurement unit, an adaptive-algorithm execution unit performs an adaptive operation that adaptively updates filter coefficients of the linear inverse filter.
    Type: Application
    Filed: July 8, 2022
    Publication date: January 19, 2023
    Applicant: Alps Alpine Co., LTD
    Inventors: Yuji Saito, Hiroki Toita, Hiroyuki Taguchi, Ryosuke Tachi, Tatsuya Mashiko
  • Patent number: 11550770
    Abstract: Time-series data indicating a temporal variation of an index, which indicates a usage state of each of resources that are used by multiple processes, is acquired, and an operation-data matrix including vectors is generated based on the time-series data such that each of the vectors indicates the time-series data at a predetermined time interval and includes as an element the index indicating the usage state of one of the resources at the predetermined time interval. A basis matrix including a predetermined number of basis vectors is generated by performing nonnegative matrix factorization on the operation-data matrix. Component values, which respectively correspond to the resources, indicated by each of the predetermined number of the basis vectors are extracted, and information on the extracted component values is output as usage states of the resources that are used by each of the multiple processes.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: January 10, 2023
    Assignee: FUJITSU LIMITED
    Inventors: Yuji Saito, Tetsuya Uchiumi, Yukihiro Watanabe
  • Patent number: 11482204
    Abstract: In a first system signal processing unit, a first system auxiliary filter generates a correction signal for correcting an error signal from a noise signal, a first system subtractor subtracts the correction signal from an output of a first microphone to obtain an error signal, an adaptive filter performs an adaptive operation using the error signal to generate a cancel sound output from a first speaker, and a DMS detects a position of a user's ear. When the position of the user's ear moves, the controller stops the adaptive operation, updates the transfer function of the first system auxiliary filter to the transfer function corresponding to the noise cancel position matching the position of the user's ear, gradually changes the transfer function of the adaptive filter to the transfer function corresponding to the matching noise cancel position, and resumes the adaptive operation after the change is completed.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: October 25, 2022
    Assignees: ALPS ALPINE CO., LTD., A SCHOOL CORPORATION KANSAI UNIVERSITY
    Inventors: Ryosuke Tachi, Yuji Saito, Yoshinobu Kajikawa
  • Publication number: 20220333365
    Abstract: The present disclosure provides a sanitary washing device including a shutter that opens and closes an opening and a shutter washing unit that is configured to wash the front surface of the shutter, the shutter having a simple structure. A sanitary washing device includes: a shutter configured to open and close an opening formed in a functional unit; and a shutter washing unit arranged above the shutter and configured to wash a front surface of the shutter in a state in which the shutter closes the opening.
    Type: Application
    Filed: March 16, 2022
    Publication date: October 20, 2022
    Applicant: LIXIL Corporation
    Inventors: Kengo MURATA, Yuji SAITO, Katsunori TOMITA, Hirokazu SHIMASAKI
  • Publication number: 20220252766
    Abstract: An optical film includes a film body defining an upper surface, a lower surface opposite to the upper surface, and at least one outer edge extending between the upper and lower surfaces. The optical film also includes at least one energy radiated discolored portion formed in the film body. The at least one energy radiated discolored portion includes a radiation absorbing material.
    Type: Application
    Filed: August 3, 2020
    Publication date: August 11, 2022
    Inventors: Yuji Saito, Jiro Hattori
  • Patent number: 11371472
    Abstract: A first member has a plated layer. A second member is pressed against the plated layer and causes a tensile stress in the first member. A breakage probability is a probability of breakage of the plated layer caused by the tensile stress. A characteristic line represents a relationship between an elastic modulus of the plated layer and the breakage probability. A characteristic slope of the characteristic line is a ratio of an increase in the breakage probability to a decrease in the elastic modulus. A characteristic change point appears on the characteristic line at which the elastic slope increases to exceed a predetermined slope as the elastic modulus gradually decreases. A characteristic change elastic modulus is the elastic modulus at the characteristic change point. The plated layer contains at least a chromium component and has the elastic modulus larger than the characteristic change elastic modulus.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: June 28, 2022
    Assignee: DENSO CORPORATION
    Inventor: Yuji Saito
  • Patent number: 11367025
    Abstract: An analysis method includes: executing first accumulation processing for accumulating analysis reports including an analysis item regarding an analysis target and analysis results with respect to the analysis item; executing first extraction processing for extracting the analysis item and texts representing the analysis results from each of the analysis reports accumulated; executing first identification processing for identifying analysis techniques corresponding to the texts extracted; executing generation processing for generating analysis patterns; executing second identification processing for identifying first analysis patterns; executing third identification processing for identifying other analysis patterns; executing second accumulation processing for accumulating pattern information; executing second extraction processing for extracting the analysis item and the texts from a new analysis report; and executing output processing for identifying an analysis technique.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: June 21, 2022
    Assignee: FUJITSU LIMITED
    Inventors: Tetsuya Uchiumi, Yuji Saito, Masahiro Asaoka, Reiko Kondo, Yukihiro Watanabe
  • Patent number: 11354201
    Abstract: A method performed by an apparatus is provided. The apparatus extracts a virtual machine before starting operation from among virtual machines within a range of influence of a failure upon detection of the failure. With reference to a storage unit storing history information concerning operation of a virtual machine, the apparatus generates first information corresponding to time intervals of operation start time of the extracted virtual machine, second information corresponding to movement required time required to move the extracted virtual machine out of the range of influence of the failure, and third information corresponding to recovery required time required for recovery of the failure detected to have occurred. The apparatus determines whether to move the extracted virtual machine out of the range of influence of the failure, based on the generated first, second, and third information.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: June 7, 2022
    Assignee: FUJITSU LIMITED
    Inventors: Reiko Kondo, Yukihiro Watanabe, Masahiro Asaoka, Tetsuya Uchiumi, Fumi Iikura, Kazuhiro Suzuki, Shingo Okuno, Yuji Saito