Patents by Inventor Takashi Fujiwara

Takashi Fujiwara 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: 20220018360
    Abstract: A centrifugal compressor includes: an impeller including a main body portion and a plurality of blades provided on an outer peripheral surface of the main body portion; an intake flow path facing the impeller in a rotational axis direction; and a throttling mechanism including a throttling member provided in the intake flow path, a ratio obtained by dividing a distance between an outer peripheral end of a leading edge of the blade and the throttling member by a maximum protruding height of the throttling member protruding from an inner wall surface of the intake flow path is equal to or less than 4.
    Type: Application
    Filed: October 1, 2021
    Publication date: January 20, 2022
    Applicant: IHI Corporation
    Inventors: Atsushi YONEMURA, Ryota SAKISAKA, Takashi FUJIWARA, Takahiro BAMBA
  • Publication number: 20220017373
    Abstract: To provide an amorphous silicon forming composition, which has high affinity with a substrate, is excellent in filling properties, and is capable of forming a thick film. [Means for Solution] An amorphous silicon forming composition comprising: (a) a block copolymer comprising a linear and/or cyclic block A having a polysilane skeleton comprising 5 or more silicon and a block B having a polysilazane skeleton comprising 20 or more silicon, wherein at least one silicon in the block A and at least one silicon in the block B are connected by a single bond and/or a crosslinking group comprising silicon, and (b) a solvent.
    Type: Application
    Filed: November 26, 2019
    Publication date: January 20, 2022
    Inventors: Naoko NAKAMOTO, Takashi FUJIWARA, Atsuhiko SATO
  • Patent number: 11228220
    Abstract: A bus-bar unit includes bus-bars and a bus-bar holder supporting the bus-bars. Each bus-bar includes first and second bus-bar pieces. The first bus-bar piece includes a coil wire connection portion connected to a coil wire drawn from the stator and a first joint terminal joined to the second bus-bar piece. The second bus-bar piece includes an external connection terminal connected to an external apparatus and a second joint terminal joined to the first bus-bar piece. At least a portion of the first bus-bar pieces is embedded in the bus-bar holder. The first joint terminal includes a joint surface which faces and is joined to the second joint terminal and an opposite surface facing a side opposite to the joint surface. The joint surface and the opposite surface of the first joint terminal are exposed from the bus-bar holder.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: January 18, 2022
    Assignee: NIDEC CORPORATION
    Inventors: Masanori Yoshikawa, Yusaku Yoshida, Hideo Fujiwara, Takashi Seguchi, Kosuke Ogawa
  • Publication number: 20220009782
    Abstract: The present invention provides a method for producing a novel amorphous silicon sacrifice film and an amorphous silicon forming composition capable of filling trenches having a high aspect ratio to form an amorphous silicon sacrifice film that is excellent in affinity with a substrate. A method for producing an amorphous silicon sacrifice film, comprising (i) polymerizing a cyclic polysilane comprising 5 or more silicon or a composition comprising the cyclic polysilane by light irradiation and/or heating to form a polymer having a polysilane skeleton, (ii) applying an amorphous silicon forming composition comprising said polymer having a polysilane skeleton, polysilazane and a solvent above a substrate to form a coating film, and (iii) heating the coating film in a non-oxidizing atmosphere.
    Type: Application
    Filed: November 26, 2019
    Publication date: January 13, 2022
    Inventors: Naoko NAKAMOTO, Takashi FUJIWARA, Atsuhiko SATO
  • Patent number: 11215190
    Abstract: Provided is a centrifugal compressor, including: an impeller including blades; a main flow passage including a narrowing portion, which is formed on a front side of the impeller and has a diameter smaller than a diameter of each of the blades; an auxiliary flow passage, which has one end communicating to the main flow passage on the impeller side with respect to the narrowing portion and another end communicating to the main flow passage on a side away from the impeller with respect to the narrowing portion; and a movable portion which is movable between a first position and a second position, the second position being different from the first position in position in a rotation axis direction and a rotation direction of the impeller and in opening degree of the auxiliary flow passage.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: January 4, 2022
    Assignee: IHI Corporation
    Inventors: Takashi Fujiwara, Ryusuke Numakura
  • Patent number: 11209335
    Abstract: A monitoring system includes a plurality of sensor terminals installed for a target to be measured, a base station wirelessly communicating with the sensor terminals, and a calculator communicable with the base station. The sensor terminal includes a sensor element which acquires vibration information of a target to be measured, an arithmetic unit which performs an arithmetic operation for data including the vibration information of the sensor element, and a wireless communication unit. The arithmetic unit performs a reduction process for reducing an amount of data of the sensor element. The wireless communication unit transmits data processed by the arithmetic unit to the base station. After the transmitted data is received, the base station transmits it to the calculator. The calculator includes a signal processing unit. The signal processing unit complements the reduction-processed data to acquire vibration information, and averages the vibration information for a predetermined period of time.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: December 28, 2021
    Assignee: HITACHI, LTD.
    Inventors: Kazuo Ono, Yuudai Kamada, Ryosuke Fujiwara, Takashi Endo
  • Publication number: 20210397125
    Abstract: An image-forming apparatus includes: a toner cartridge configured to accommodate toner; a drum cartridge for use with the toner cartridge; and a controller. The drum cartridge includes a photosensitive drum, and a drum memory storing a first type information indicating a type of the drum cartridge. The controller is configured to communicate with the drum memory. The controller is configured to perform: reading the first type information from the drum memory; and changing an operation of the image-forming apparatus based on the type indicated by the first type information.
    Type: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Takashi SUZUKI, Shingo FUJIWARA, Tadao KYOTANI
  • Publication number: 20210230374
    Abstract: [Problem] To provide a novel polymer, which fills trenches having narrow widths and high aspect ratios and can form a thicker film. [Means for Solution] The block copolymer comprises a linear or cyclic block A having a polysilane skeleton comprising 5 or more silicon and a block B having a polysilazane skeleton comprising 20 or more silicon.
    Type: Application
    Filed: May 29, 2019
    Publication date: July 29, 2021
    Inventors: Takashi FUJIWARA, Yuji TASHIRO
  • Publication number: 20210120137
    Abstract: An image reading device according to the present disclosures installed in an image forming apparatus includes a document placing table having an image reader, and an auto document feeder (ADF) rotatably supported by the document placing table. The ADF is configured to rotatable between a closed position where an upper surface of the document placing table is uncovered and an opened position where the upper surface is covered. The ADF includes a document tray, a document discharge tray arranged at a lower position than the document tray with a space, a front wall fixed to a front side of the document tray. A cutout part is formed on the front wall, a front side of the space is opened through the cutout part. The ADF further includes a hand grip provided to an upper edge of the cutout part, and the hand grip is used to lift up the ADF from the closed position toward the opened positon.
    Type: Application
    Filed: October 20, 2020
    Publication date: April 22, 2021
    Inventors: Yoshihiro Okamoto, Takashi Fujiwara, Tomoyuki Mizuno
  • Publication number: 20210088054
    Abstract: A centrifugal compressor includes: a compressor housing in which an intake passage is formed; a compressor impeller provided in the intake passage; an actuator that causes a rod to linearly move in a direction intersecting with a rotation axis direction of the compressor impeller; a connection member connected to the rod; a throttle member including a protruding portion; a connection shaft extending in the rotation axis direction and connecting the connection member and the throttle member; and a rotation shaft extending in a direction parallel to the connection shaft and serving as a rotation center of the throttle member.
    Type: Application
    Filed: December 9, 2020
    Publication date: March 25, 2021
    Applicant: IHI Corporation
    Inventors: Ryota SAKISAKA, Takashi FUJIWARA, Atsushi YONEMURA, Wataru UEDA, Hiroshi SAITO, Yusei YOKOYAMA, Takahiro BAMBA
  • Publication number: 20210061608
    Abstract: An image forming apparatus includes a discharging tray for supporting a sheet, an operation panel and a supporting member. The sheet is discharged toward a sheet discharging direction that is a direction toward which the sheet is discharged. The operation panel is located at a position which is different from the position of the discharging tray in a width direction orthogonal to the sheet discharging direction and above the discharging tray. The supporting member is disposed at the discharging tray and capable of supporting the discharged sheet with the discharging tray. A front end portion of the supporting member is located above an upper surface of the discharging tray. At least a part of the front end portion of the supporting member overlaps the operation panel when viewed in the width direction.
    Type: Application
    Filed: August 17, 2020
    Publication date: March 4, 2021
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Takashi FUJIWARA, Yuji TAKIMOTO, Shota SHINOYA
  • Publication number: 20210040959
    Abstract: Provided is a centrifugal compressor, including: a movable member which is movable between a first position and a second position, the first position being a position at which an opening degree of an auxiliary flow passage arranged more on an outer diameter side than a main flow passage becomes a first opening degree, the second position being a position at which an opening degree of the auxiliary flow passage becomes a second opening degree smaller than the first opening degree; and a linear actuator configured to drive the movable member in a rotation axis direction of the impeller.
    Type: Application
    Filed: October 27, 2020
    Publication date: February 11, 2021
    Applicant: IHI Corporation
    Inventors: Yusei YOKOYAMA, Takashi FUJIWARA, Wataru UEDA, Hiroshi SAITO
  • Patent number: 10907257
    Abstract: In a projection material for mechanical plating, a steel particle is used as a core, and the surrounding surface thereof is coated with a zinc alloy in which the content of Al is more than 5% by mass but equal to or less than 16% by mass, the content of Mg is equal to or more than 5.5% by mass but equal to or less than 15% by mass and the remaining portion is Zn and an impurity, and the content of Fe is equal to or more than 3% by mass but equal to or less than 80% by mass. In this way, the corrosion resistance of a zinc-based coating itself formed in mechanical plating is remarkably enhanced without dependence on protective coating formation treatment such as chromate treatment.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: February 2, 2021
    Assignees: DOWA IP CREATION CO., LTD., HONDA MOTOR CO., LTD.
    Inventors: Takashi Fujiwara, Naohisa Okamoto, Kenji Kimura, Tsutomu Miyadera
  • Patent number: 10865065
    Abstract: An image reading device includes: a supply tray including a movable plate which moves from a first position to a second position according to a decrease in the number of sheet to be supported by a supply tray; a discharge guide including a discharge opening for discharging the sheet conveyed by a conveyance guide to a discharge tray, and moves from a third position to a fourth position according to the decrease in the number of the sheets to be supported by the supply tray; a first drive source and a first drive train that transmits a drive force from the first drive source to a discharge roller. The discharge roller discharges a sheet through a discharge opening by receiving the drive force from the first drive source.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: December 15, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tetsuo Ito, Takashi Fujiwara
  • Publication number: 20200371455
    Abstract: A pressing drive mechanism, which drives a secondary transfer roller to press an intermediate transfer belt, includes: a motor that generates a driving force for driving the secondary transfer roller in a driving direction; a transmission mechanism that transmits the driving force to the secondary transfer roller to drive the secondary transfer roller in the driving direction; a hardware processor that controls the driving force of the motor to control a position in the driving direction of the secondary transfer roller; and a biasing member that biases the secondary transfer roller in a direction of pressing the intermediate transfer belt. The hardware processor controls the driving force of the motor in synchronization with a timing at which a front end of a sheet reaches the secondary transfer roller; and drives the secondary transfer roller to a predetermined pressing position by using a biasing force by the biasing member.
    Type: Application
    Filed: April 15, 2020
    Publication date: November 26, 2020
    Inventors: Masahito TAKANO, Jun ONISHI, Takashi FUJIWARA
  • Patent number: 10841444
    Abstract: An image reading apparatus includes: a supply tray, which supports sheets to be supplied and includes a movable plate configured to move from a first position to a second position as the sheet supported by the supply tray is decreased, the second position being higher than the first position; a discharge tray; a conveyance guide; a reading sensor; a discharge unit, which includes a discharge opening to discharge the sheet conveyed by the conveyance guide to the discharge tray and is configured to move from a third position to a fourth position as the sheet supported by the paper feed tray is decreased, the fourth position being higher than the third position; and a first drive source, which generates a drive force, wherein the discharge unit is configured to move by receiving the drive force and to transmit the drive force to the movable plate.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: November 17, 2020
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Takashi Fujiwara, Kazutoshi Nakamura
  • Patent number: 10800630
    Abstract: A discharge unit includes a first discharge guide which guides the sheet conveyed by the conveyance guide, a second discharge guide which includes the discharge opening, and guides the sheet guided by the first discharge guide toward the discharge tray, and a discharge roller and a discharge pinch roller which are provided in the second discharge guide. The first discharge guide is rotatable around a first axis which is parallel with an axial direction of the discharge roller. The second discharge guide is connected to the first discharge guide to be rotatable around a second axis which is parallel with the first axis. An angle at which the second discharge guide is inclined with respect to a sheet supporting surface in the discharge tray is constant while the discharge unit is moving from the third position up to the fourth position.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: October 13, 2020
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Takashi Fujiwara
  • Patent number: 10788045
    Abstract: Provided is a discharge section structure for a centrifugal compressor provided with a scroll flow passage and a discharge flow passage connected to the scroll flow passage. The discharge section structure includes a tongue section provided in a branching section between the scroll flow passage and the discharge flow passage; a first flow passage section having a center of curvature on an origin side of the scroll flow passage; and a second flow passage section communicating with the first flow passage section and having a center of curvature on an outer side of the scroll flow passage. The first flow passage section includes at least a part of the scroll flow passage, and the second flow passage section includes at least a part of the discharge flow passage. The tongue section faces the second flow passage section and is located in the middle of the second flow passage section.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: September 29, 2020
    Assignee: IHI Corporation
    Inventor: Takashi Fujiwara
  • Patent number: 10638005
    Abstract: In a scanner, a document cover is pivotable about a pivot axis between a closed position to cover the document table and an open position to expose the document table. An operation panel is movable between a first position and a second position lower than the first position. The operation panel in the first position overlaps with the document cover in the closed position when viewed in a perpendicular direction to the pivot axis of the document cover. The document cover is away from the operation panel in the perpendicular direction. The moving mechanism is configured to move the operation panel to the second position in response to pivoting of the document cover to the open position, and to move the operation panel to the first position in response to the pivoting of the document cover to the closed position.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: April 28, 2020
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Takashi Fujiwara
  • Patent number: 10627747
    Abstract: An image forming apparatus includes: a hardware processor that performs feedforward control on a motor; a driving roller that drives an intermediate transfer belt for transferring a toner image; a drive transmission system that transmits a driving force of the motor; a first detector that detects a speed of a driving shaft of the motor; a second detector that detects a speed of a driving shaft of the drive transmission system; and a storage that stores a plurality of sets of control data having different conformity states, wherein the plurality of sets of control data include pairs of a feedforward operation pattern and a drive transmission system deformation pattern, the drive transmission system deformation pattern corresponds to a fluctuation pattern of difference values, and the hardware processor compares the fluctuation pattern of difference values with the plurality of sets of control data.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: April 21, 2020
    Assignee: KONICA MINOLTA, INC.
    Inventors: Jun Onishi, Masahito Takano, Takashi Fujiwara