Patents by Inventor Kazuyoshi Takahashi

Kazuyoshi Takahashi 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: 20210286294
    Abstract: An image forming apparatus includes: an annular transfer belt having an outer surface on which an image is transferred; a nip portion that forms a nip region for nipping a recording medium with an outer surface of the transfer belt; a facing portion that faces the nip region from an inner side of the transfer belt and transfers the image from the transfer belt to the recording medium in the nip region by charging the transfer belt; and a transport unit including a holding portion that holds the recording medium, transports the recording medium by moving the holding portion, and causes the recording medium together with the holding portion to pass the nip region while holding the recording medium at the holding portion.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 16, 2021
    Applicant: FUJIFILM Business Innovation Corp.
    Inventors: Tomoaki YOSHIOKA, Masaaki TAKAHASHI, Kazuyoshi HAGIWARA, Yoko MIYAMOTO, Toshiaki BABA
  • Patent number: 11099507
    Abstract: A sheet separation device configured to separate a two-ply sheet, in which two sheets are bonded together at a portion, includes a rotator, a nipping member disposed opposite the rotator and configured to nip the two-ply sheet with the rotator, a conveyor configured to convey the two-ply sheet between the rotator and the nipping member, and a winding member disposed adjacent to the rotator. The conveyor conveys the two-ply sheet with a bonded portion of the two-ply sheet being an upstream end or a downstream end of the two-ply sheet in a conveyance direction of the two-ply sheet. The winding member winds the two-ply sheet around the rotator, to create a difference in winding circumferential length between the two sheets and separate the two sheets. The sheet separation device further includes control circuitry configured to adjust a winding amount of the two-ply sheet around the rotator.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: August 24, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Takahiro Watanabe, Tomohiro Furuhashi, Michitaka Suzuki, Tomomichi Hoshino, Wataru Takahashi, Fumiharu Yoneyama, Kazuyoshi Matsuo, Makoto Hidaka, Koki Sakano, Akira Kunieda, Takuya Morinaga, Yohsuke Haraguchi
  • Patent number: 11097920
    Abstract: A sheet folding apparatus includes a conveyance member to convey a sheet from an ejection member at a first speed lower than a conveyance speed by the ejection member or a second speed substantially same as or higher than the conveyance speed; a registration member; a pair of first and second rollers to rotate in forward and reverse directions; a plurality of folding rollers downstream from the second roller, to rotate in forward and reverse directions to fold the sheet; and circuitry to determine whether the sheet is equal to or smaller than a reference length from an exit position from the ejection member to a folding start position downstream from the pair of the first and second rollers. The circuitry performs first-speed folding when the sheet is equal to or smaller than the reference length and performs second-speed folding when the sheet is longer than the reference length.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: August 24, 2021
    Assignee: Ricoh Company, Ltd.
    Inventors: Akira Kunieda, Tomohiro Furuhashi, Michitaka Suzuki, Wataru Takahashi, Fumiharu Yoneyama, Kazuyoshi Matsuo, Makoto Hidaka, Takahiro Watanabe, Takuya Morinaga, Yohsuke Haraguchi
  • Patent number: 10967485
    Abstract: A clamping apparatus is provided with: a metallic detector that is provided to a pivot shaft pivotally moving integrally with a clamp arm under the operation of a driving unit, in such a manner as to extend along the pivot shaft so as to be around the axis thereof; and one proximity sensor that is arranged so as to be opposed to the detector and that detects the magnetic loss of the detector. The detector is formed so that the area of a sensor opposing part opposed to a detection surface of the proximity sensor changes in association with the pivotal moving of the pivot shaft.
    Type: Grant
    Filed: May 29, 2017
    Date of Patent: April 6, 2021
    Assignee: SMC CORPORATION
    Inventors: Atsushi Terasaki, Kazuyoshi Takahashi, Atsushi Tamai, Koichi Katsumata
  • Publication number: 20200407870
    Abstract: A method of estimating an oxygen concentration in monocrystalline silicon, which is pulled up by a pull-up device having a hot zone with a plane-asymmetric arrangement with respect to a plane defined by a crystal pull-up shaft and an application direction of a horizontal magnetic field, includes, in at least one of a neck-formation step or a shoulder-formation step for the monocrystalline silicon: a step of measuring a surface temperature of a silicon melt at a point defining a plane-asymmetric arrangement of a hot zone, and a step of estimating the oxygen concentration in a straight body of the pulled-up monocrystalline silicon based on the measured surface temperature of the silicon melt and a predetermined relationship between the surface temperature of the silicon melt and the oxygen concentration in the monocrystalline silicon.
    Type: Application
    Filed: February 27, 2019
    Publication date: December 31, 2020
    Applicant: SUMCO CORPORATION
    Inventors: Shin MATSUKUMA, Kazuyoshi TAKAHASHI, Toshinori SEKI, Tegi KIM, Ryusuke YOKOYAMA
  • Patent number: 10800008
    Abstract: A clamp device is provided with a detection section which detects the pivotal position of a clamp arm. The detection section has: a cam section which is provided on a pivot shaft, includes a predetermined cam surface, and is formed so that the radial distance from the center of the pivot shaft to the cam surface varies circumferentially; and a proximity sensor which detects the position of the cam surface which varies as the pivot shaft pivots.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: October 13, 2020
    Assignee: SMC CORPORATION
    Inventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Takeshi Seo, Jiro Mandokoro, Koichi Katsumata
  • Patent number: 10744621
    Abstract: A clamp device is equipped with a clamp body, a piston rod, a link mechanism, a detection mechanism for detecting a state of rotary motion of a clamp arm, and a determination unit for determining whether a state of clamping exists. The detection mechanism includes a first proximity sensor, and a knuckle joint having a first sloped surface. The determination unit, on the basis of a comparison of an output signal from the first proximity sensor to a clamp threshold value, determines whether a state of clamping exists, and on the basis of a comparison to a clamping force generation threshold value, determines whether a state of generation of clamping force exists.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: August 18, 2020
    Assignee: SMC CORPORATION
    Inventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Takeshi Seo, Jiro Mandokoro, Koichi Katsumata
  • Patent number: 10661412
    Abstract: A clamp apparatus including two pairs of first and second clamp arms, which are supported rotatably with respect to a body and are disposed mutually in parallel. First and second cam members including respective cam surfaces are provided on ends of the first and second clamp arms. The first cam members are pressed by rollers upon lowering of a block body under a driving action of a first cylinder that makes up a drive unit. The first clamp arms are rotated to assume a clamped state. The second cam members are pressed by rollers upon lowering of a block body under a driving action of a second cylinder of the drive unit, whereby the second clamp arms are rotated to assume a clamped state.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: May 26, 2020
    Assignee: SMC CORPORATION
    Inventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Masaharu Kobayashi
  • Patent number: 10549394
    Abstract: The present invention relates to a clamp device. The clamp device is provided with a driving force transmission mechanism, which transmits driving force from a drive unit to clamp arms. The driving force transmission mechanism converts the rectilinear movement of a piston rod of the drive unit into: a first operation, in which the clamp arms rotate while moving in directions toward or away from each other; and a second operation, in which the clamp arms move in parallel in directions toward or away from each other with gripping surfaces in a mutually parallel state.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: February 4, 2020
    Assignee: SMC CORPORATION
    Inventors: Chiaki Fukui, Kazuyoshi Takahashi, Takeshi Seo
  • Patent number: 10543584
    Abstract: A clamp apparatus is equipped with first and second clamp arms supported rotatably with respect to a body, and a drive unit having a pair of first and second pistons displaced under the supply of a pressure fluid. A driving force of the drive unit is transmitted to the first and second clamp arms through knuckle joints, which are connected to first and second piston rods, power-boost levers, and link arms. The power-boost levers are formed such that the length from a support pin toward the knuckle joint is longer than the length from the support pin toward the link arm.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: January 28, 2020
    Assignee: SMC CORPORATION
    Inventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Masaharu Kobayashi
  • Publication number: 20190252952
    Abstract: A motor includes a motor body, a speed reduction unit, a brush holder, and a circuit board. The motor body rotationally drives a rotation shaft. The speed reduction unit reduces speed of rotation of the rotation shaft. The brush holder is held by a motor case of the motor body and a gear housing of the speed reduction unit. The circuit board is arranged in a board receptacle that is open in a direction orthogonal to a motor flattened surface. The brush holder includes a terminal that is directly and electrically connected to the circuit board.
    Type: Application
    Filed: October 31, 2017
    Publication date: August 15, 2019
    Applicant: DENSO CORPORATION
    Inventors: Akihiro OTAWARA, Tomoaki OZAKI, Suguru YAMABE, Kazuyoshi TAKAHASHI
  • Patent number: 10335927
    Abstract: A clamp apparatus including first and second clamp arms, which are supported rotatably on a body, with a cover being installed to cover outer sides of the body. The cover includes openings through which portions of the first and second clamp arms are inserted and rotatably operated. An unloading tray is arranged in the body at a position below the openings in the direction of gravity. Spatter, which invades into the clamp apparatus from the openings when a welding operation is carried out on a workpiece that is clamped by the first and second clamp arms, is deposited on the unloading tray, and the spatter is eliminated by taking out the unloading tray to the exterior of the clamp apparatus.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: July 2, 2019
    Assignee: SMC CORPORATION
    Inventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Masaharu Kobayashi
  • Publication number: 20190184526
    Abstract: A clamping apparatus is provided with: a metallic detector that is provided to a pivot shaft pivotally moving integrally with a clamp arm under the operation of a driving unit, in such a manner as to extend along the pivot shaft so as to be around the axis thereof; and one proximity sensor that is arranged so as to be opposed to the detector and that detects the magnetic loss of the detector. The detector is formed so that the area of a sensor opposing part opposed to a detection surface of the proximity sensor changes in association with the pivotal moving of the pivot shaft.
    Type: Application
    Filed: May 29, 2017
    Publication date: June 20, 2019
    Applicant: SMC CORPORATION
    Inventors: Atsushi TERASAKI, Kazuyoshi TAKAHASHI, Atsushi TAMAI, Koichi KATSUMATA
  • Patent number: 10241318
    Abstract: A telescoping sight having a sight housing, a moveable lens within the sight housing, a course focus adjustment control being operable to move the moveable lens via a spiral track, and a fine focus adjustment control, the fine focus adjustment control being interoperable with the spiral track.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: March 26, 2019
    Assignee: SIGHTRON, INC.
    Inventors: Kazuyoshi Takahashi, Shuji Moriai, Takayoshi Narukawa
  • Patent number: 10173303
    Abstract: A clamping device has a pair of first and second clamping arms rotatably supported with respect to a body, and a cam member having a cam surface is removably provided at one end of each of the first and second clamping arms. A pair of rollers pivotally supported by a block body constituting a drive unit are each in contact with the cam member. By a descent of the block body under the driving action of the drive unit, the cam surface of the cam member is pressed by the rollers, and the cam surface inclined in the displacement direction of the block body and recessed in a cross-sectional arc shape is pressed.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: January 8, 2019
    Assignee: SMC CORPORATION
    Inventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Masaharu Kobayashi
  • Patent number: 10011004
    Abstract: A driving force transmission mechanism of a clamp apparatus includes first link arms, which are pivotally supported for rotation on ends of first and second piston rods, and second link arms, which connect other ends of the first link arms to respective ends on one end side of first and second clamp arms. Further, first rollers, which are provided on the one end of the first link arms, are guided in a horizontal direction along guide grooves of first guide members, and second rollers, which are provided on the other ends of the first link arms and the second link arms, are guided in a vertical direction along guide grooves of second guide members.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: July 3, 2018
    Assignee: SMC CORPORATION
    Inventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Masaharu Kobayashi
  • Publication number: 20180141222
    Abstract: The purpose of the present invention is to reduce stress on the ring finger during use of a pair of scissors, and to reduce the burden for hairdressers. A moving blade being continuous with a thumb ring via a handle portion comprises a first scissor half, while a stationary blade being continuous with a ring-finger ring via a handle portion comprises a second scissor half. The first scissor half and the second scissor half are pivotably coupled at a pivot point. The second scissor half is formed by a scissor half blade side portion and a scissor half ring side portion being coupled by a coupling portion, which includes a pivot mechanism and an elastic mechanism. The scissor half ring side portion is pivotable about a coupling axis with respect to the scissor half blade side portion. The elastic mechanism acts so as to turn back (oppose) the pivotal movement.
    Type: Application
    Filed: April 8, 2015
    Publication date: May 24, 2018
    Applicant: HIKARI CORPORATION
    Inventor: Kazuyoshi TAKAHASHI
  • Publication number: 20180141176
    Abstract: The present invention relates to a clamp device. The clamp device is provided with a driving force transmission mechanism, which transmits driving force from a drive unit to clamp arms. The driving force transmission mechanism converts the rectilinear movement of a piston rod of the drive unit into: a first operation, in which the clamp arms rotate while moving in directions toward or away from each other; and a second operation, in which the clamp arms move in parallel in directions toward or away from each other with gripping surfaces in a mutually parallel state.
    Type: Application
    Filed: January 5, 2016
    Publication date: May 24, 2018
    Applicant: SMC CORPORATION
    Inventors: Chiaki FUKUI, Kazuyoshi TAKAHASHI, Takeshi SEO
  • Patent number: 9969060
    Abstract: A clamp apparatus includes a pair of first and second clamp arms supported rotatably on a body. The clamp apparatus also includes a manual release mechanism capable of manually releasing a clamped state in the case that an output from a drive unit to the first and second clamp arms is stopped and the clamped state of a workpiece is locked. The manual release mechanism includes a release lever disposed rotatably on a first plate body. By an operator operating the release lever to thereby rotate the release lever, a block body of a driving force transmission mechanism is pressed and moved upwardly, and pressing forces applied to the first and second clamp arms in widthwise outside directions thereof by a pair of rollers, are released. Consequently, gripping members of the first and second clamp arms are rotated in directions away from each other to thereby cause an unclamped state.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: May 15, 2018
    Assignee: SMC CORPORATION
    Inventors: Chiaki Fukui, Kazuyoshi Takahashi, Hideki Sasaki, Masaharu Kobayashi
  • Patent number: 9908219
    Abstract: A clamp apparatus includes a pair of first and second clamp arms. A driving force transmission mechanism transmits a driving force of a drive unit, whereby the first clamp arm is operated to rotate via a link arm, while simultaneously, the second clamp arm is rotated, and after being rotated through a predetermined angle, under moving action of a roller, which is inserted into a cam groove of a link plate, rotation of the second clamp arm is stopped and maintained in advance with respect to the first clamp arm. Consequently, after positioning of a workpiece has been carried out by the second clamp arm, rotation of which is stopped, the first clamp arm continues to be rotated, whereby the workpiece is clamped.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: March 6, 2018
    Assignee: SMC KABUSHIKI KAISHA
    Inventors: Kazuyoshi Takahashi, Hideki Sasaki