Patents by Inventor Yuji Yamashita

Yuji Yamashita 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).

  • Patent number: 10774852
    Abstract: A hydraulic system for a working machine includes a hydraulic actuator having a first fluid chamber and a second fluid chamber, an accumulator, an outputting fluid tube to output an operation fluid, and a switching valve to be switched between a first position and a second position. The first position allows the first fluid chamber and the second fluid chamber to be communicated with the outputting fluid tube and thereby allowing a floating operation. The second position allows the first fluid chamber and the accumulator to be communicated with each other, allows the second fluid chamber and the outputting fluid tube to be communicated with each other, and thereby allows an anti-vibration operation.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: September 15, 2020
    Assignee: KUBOTA CORPORATION
    Inventors: Yuji Fukuda, Keigo Honda, Ryosuke Kinugawa, Ryuki Nishimoto, Yuji Yamashita, Daisuke Sakurai
  • Patent number: 10638908
    Abstract: The present invention is a method for manufacturing cleaning members obtained by cutting multi-layer webs formed by: spreading fiber bundles, the lengthwise directions of which are parallel to the direction in which said are conveyed; and layering together at least the spread and non-woven fabric strips. Said method includes a step in which, before spreading, two or more are joined together, forming one or more join sections. Said joins are performed by joining the back end (with respect to the conveyance direction) of one to the front end (with respect to the conveyance direction) of the next fiber bundle.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: May 5, 2020
    Assignee: UNICHARM CORPORATION
    Inventors: Hiroaki Goto, Takayuki Matsumoto, Shigetomo Takahashi, Yuji Yamashita
  • Patent number: 10568484
    Abstract: A method for continuously producing a cleaning member obtained from a multilayer web that includes at least a fiber bundle with hollow fibers, and non-woven fabric strips includes at least: a step for preparing a guide member provided with a pair of width-adjusting member, and having a predetermined interval; a step for conveying a fiber bundle strip, such as the fiber bundle with hollow fibers, between the pair of width-adjusting members of the guide member, and adjusting the width of the fiber bundle strip so as to match the aforementioned interval; a step for forming the multilayer web by overlaying the strip-like fiber bundle, the width of which has been adjusted, on the non-woven fabric strips; and a step for joining the components of the multilayer web.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: February 25, 2020
    Assignee: UNICHARM CORPORATION
    Inventors: Shigetomo Takahashi, Hiroaki Goto, Takayuki Matsumoto, Yuji Yamashita
  • Patent number: 10422108
    Abstract: A cabin includes: a panel disposed on a side of an operator seat, the panel including: a plurality of cross members extending in a first direction; and a plurality of transverse members intersecting with the plurality of cross members each other and extending in a second direction; a glass panel disposed on a side of the panel; a window frame disposed on the glass panel; a window panel disposed on the window frame, the window panel being configured to move in the first direction or in the second direction; a projecting member disposed on a side of the window panel, the side being an identical side to the operator seat, the projecting member being configured to move together with the window panel; and a guide portion configured to accept insertion of the projecting member and to limit a moving distance of the window panel.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: September 24, 2019
    Assignee: KUBOTA CORPORATION
    Inventors: Yuji Yamashita, Hiroaki Kurachi, Masahiro Kuroda, Hiroyuki Anami, Toshihiko Takemura
  • Publication number: 20190257437
    Abstract: A pressure regulating valve includes a casing, a holder, a fixed valve, a movable valve, a spring member, a diaphragm, and a filter. The filter is configured to filter fluid flowing from a flow inlet of the casing into a pressure chamber. The filter includes a filtering part for filtering fluid and a holding part including a frame part for holding an outer periphery of the filtering part. An alignment structure configured to align the holding part at a predetermined position is provided between the holding part of the filter and the holder, or between the holding part of the filter and the casing.
    Type: Application
    Filed: August 14, 2017
    Publication date: August 22, 2019
    Applicant: AISAN KOGYO KABUSHIKI KAISHA
    Inventors: Shinya HIGASHI, Koji YOSHIDA, Toshiaki AKAMATSU, Yuji YAMASHITA, Satoshi NAKAMURA, Kensuke NIWA
  • Patent number: 10357926
    Abstract: Provided are a metal/CFRP composite structure which has lightweight and high strength by combining hot-pressed metal material(s) and carbon fiber reinforced plastic (CFRP) material(s), and its manufacturing method and apparatus. A metal blank material is heated to a temperature at which quenching is possible to obtain a first intermediate product quenched by hot-pressing. The first intermediate product, and a carbon fiber reinforced plastic (CFRP) prepreg comprising carbon fiber and uncured thermoset plastic are set into CFRP forming dies followed by press-forming the prepreg to obtain a secondary intermediate product having the CFRP in intimate contact with a surface of the first intermediate product. The CFRP and the first intermediate product are firmly adhered together by thermal curing of thermoset plastic located in the boundary of the CFRP and the first intermediate product, by subjecting the thermoset plastic contained in the CFRP prepreg to thermal curing.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: July 23, 2019
    Assignee: AISIN TAKAOKA CO., LTD.
    Inventors: Kiyohito Kondo, Yuji Yamashita
  • Patent number: 10344452
    Abstract: A cabin includes: a panel disposed on a side of an operator seat, the panel including: a plurality of cross members extending in a first direction; and a plurality of transverse members intersecting with the plurality of cross members each other and extending in a second direction; a glass panel disposed on a side of the panel; a window frame disposed on the glass panel; a window panel disposed on the window frame, the window panel being configured to move in the first direction or in the second direction; a projecting member disposed on a side of the window panel, the side being an identical side to the operator seat, the projecting member being configured to move together with the window panel; and a guide portion configured to accept insertion of the projecting member and to limit a moving distance of the window panel.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: July 9, 2019
    Assignee: KUBOTA CORPORATION
    Inventors: Yuji Yamashita, Hiroaki Kurachi, Masahiro Kuroda, Hiroyuki Anami, Toshihiko Takemura, Satoshi Tajima, Kunihiro Suzuki, Hayato Kawano, Hideo Imai
  • Patent number: 10328660
    Abstract: There is provided a composite structure, comprising a base member(s) made of metallic material, and a reinforcement member(s) made of fiber reinforced plastic including reinforcement fibers which are aligned in a uni-direction, wherein at least one slit is formed on the reinforcement member(s) so as to extend in an orientation direction of the reinforcement fibers.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: June 25, 2019
    Assignees: AISIN TAKAOKA CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuji Yamashita, Kiyohito Kondo, Yoshimasa Sawada, Hirokazu Kawabe, Yoshiteru Inamoto
  • Patent number: 10260213
    Abstract: A working machine includes a travel device, a motive power transmission device configured to transmit a motive power to the travel device, a transmission case configured to house the motive power transmission device, and a hydraulic operation fluid tank disposed on an upper surface of the transmission case.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: April 16, 2019
    Assignee: KUBOTA CORPORATION
    Inventors: Ryohei Sumiyoshi, Hideo Imai, Noriyoshi Kubo, Hiroyuki Anami, Hiroyuki Hata, Toyoaki Yasuda, Masahiro Kuroda, Kohei Higashiyama, Yuji Yamashita, Satoshi Tajima, Shunichiro Mori, Hayato Ido, Toshihiko Takemura, Shinsuke Hisatake, Hajime Tamaki, Hiroshi Koyamatsu
  • Patent number: 10241155
    Abstract: A method for inspecting a constituent unit cell to be stacked in an all-solid secondary battery of the present disclosure includes (A) measuring an open-circuit voltage between the positive electrode and the negative electrode of a constituent unit cell before a short-circuiting step is performed, (B) temporarily short-circuiting the positive electrode and the negative electrode of the constituent unit cell, (C) measuring an open-circuit voltage between the positive electrode and the negative electrode of the constituent unit cell after a given time has elapsed since the end of step (B), and (D) judging the constituent unit cell to be unusable when the open-circuit voltage measured in step (C) is less than a threshold value. A method for manufacturing an all-solid secondary battery of the present disclosure includes stacking a plurality of constituent unit cells excluding constituent unit cells judged to be unusable by the above inspection method.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: March 26, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yuji Yamashita
  • Patent number: 10232560
    Abstract: A manufacturing method of a composite structure includes: (a) preparing: a metallic sheet(s) having a through-hole(s) penetrating throughout the metallic sheet(s) in its thickness direction; (b) setting a prepreg(s), constituting a fiber reinforced plastic sheet(s), and the metallic sheet in a pair of dies, which have a recess(es) arranged at a position(s) opposed to one side opening(s) of the through-hole(s), the recess(es) having a larger diameter than the one side opening; (c) closing the dies, wherein, upon closing, (ca) the prepreg(s) and the metallic sheet are molded to the predetermined shape, while surface-contacting therebetween, (cb) at least one of the prepreg(s) and a patch member(s) is extruded into the through-hole(s), so that the shaft part is molded, and (cc) the patch member(s) forms at least part of a head part(s) in the recess(es), the head part(s) integrated with the shaft part(s) and engaging on the metallic sheet(s).
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: March 19, 2019
    Assignee: AISIN TAKAOKA CO., LTD.
    Inventors: Kiyohito Kondo, Yuji Yamashita
  • Patent number: 10150366
    Abstract: A work machine includes a machine body, a motor provided in a rear portion of the machine body, a bonnet which covers a rear of the motor and which is openable, a tank disposed between the motor and the bonnet, and a support member. The support member includes a bracket supporting the tank on the bonnet such that the tank is separated from the bonnet.
    Type: Grant
    Filed: December 26, 2016
    Date of Patent: December 11, 2018
    Assignee: KUBOTA CORPORATION
    Inventors: Yuji Yamashita, Ryohei Sumiyoshi, Toyoaki Yasuda, Toshihiko Takemura, Kunihiro Suzuki
  • Publication number: 20180344121
    Abstract: A method for continuously producing a cleaning member obtained from a multilayer web that includes at least a fiber bundle with hollow fibers, and non-woven fabric strips includes at least: a step for preparing a guide member provided with a pair of width-adjusting member, and having a predetermined interval; a step for conveying a fiber bundle strip, such as the fiber bundle with hollow fibers, between the pair of width-adjusting members of the guide member, and adjusting the width of the fiber bundle strip so as to match the aforementioned interval; a step for forming the multilayer web by overlaying the strip-like fiber bundle, the width of which has been adjusted, on the non-woven fabric strips; and a step for joining the components of the multilayer web.
    Type: Application
    Filed: August 6, 2018
    Publication date: December 6, 2018
    Inventors: Shigetomo TAKAHASHI, Hiroaki GOTO, Takayuki MATSUMOTO, Yuji YAMASHITA
  • Publication number: 20180298585
    Abstract: A cabin includes: a panel disposed on a side of an operator seat, the panel including: a plurality of cross members extending in a first direction; and a plurality of transverse members intersecting with the plurality of cross members each other and extending in a second direction; a glass panel disposed on a side of the panel; a window frame disposed on the glass panel; a window panel disposed on the window frame, the window panel being configured to move in the first direction or in the second direction; a projecting member disposed on a side of the window panel, the side being an identical side to the operator seat, the projecting member being configured to move together with the window panel; and a guide portion configured to accept insertion of the projecting member and to limit a moving distance of the window panel.
    Type: Application
    Filed: June 14, 2018
    Publication date: October 18, 2018
    Applicant: KUBOTA CORPORATION
    Inventors: Yuji YAMASHITA, Hiroaki KURACHI, Masahiro KURODA, Hiroyuki ANAMI, Toshihiko TAKEMURA
  • Patent number: 10098516
    Abstract: A method of continuously producing a cleaning member obtained from a multilayer web that includes at least a fiber bundle and a non-woven fabric, includes the following steps: preparing a guide member provided with a pair of width-adjusting members having a predetermined interval therebetween; conveying a fiber bundle through the pair of width-adjusting members of the guide member to adjust the width of the fiber bundle strip so as to match the aforementioned interval; forming the multilayer web by overlaying the fiber bundle, the width of which has been adjusted, on the non-woven fabric; and joining the fiber bundle and non-woven fabric.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: October 16, 2018
    Assignee: UNICHARM CORPORATION
    Inventors: Shigetomo Takahashi, Hiroaki Goto, Takayuki Matsumoto, Yuji Yamashita
  • Publication number: 20180291589
    Abstract: A cabin includes: a panel disposed on a side of an operator seat, the panel including: a plurality of cross members extending in a first direction; and a plurality of transverse members intersecting with the plurality of cross members each other and extending in a second direction; a glass panel disposed on a side of the panel; a window frame disposed on the glass panel; a window panel disposed on the window frame, the window panel being configured to move in the first direction or in the second direction; a projecting member disposed on a side of the window panel, the side being an identical side to the operator seat, the projecting member being configured to move together with the window panel; and a guide portion configured to accept insertion of the projecting member and to limit a moving distance of the window panel.
    Type: Application
    Filed: June 14, 2018
    Publication date: October 11, 2018
    Applicant: KUBOTA CORPORATION
    Inventors: Yuji YAMASHITA, Hiroaki KURACHI, Masahiro KURODA, Hiroyuki ANAMI, Toshihiko TAKEMURA, Satoshi TAJIMA, Kunihiro SUZUKI, Hayato KAWANO, Hideo IMAI
  • Publication number: 20180272630
    Abstract: A metal plate, a fabric formed of reinforcing fibers, and thermosetting adhesives are layered on each other in a die in a die clamping direction. The thermosetting adhesives are forced to enter the fabric by clamping the die to produce a fiber reinforced plastic material with the thermosetting adhesives therein being in an uncured state. At the same time, the fiber reinforced plastic material is molded into a shape specified by the die. The thermosetting adhesives are allowed to cure in the die to cure the molded fiber reinforced plastic material, and the fiber reinforced plastic material and the metal plate are bonded each other.
    Type: Application
    Filed: March 19, 2018
    Publication date: September 27, 2018
    Applicant: AISIN TAKAOKA CO., LTD.
    Inventors: Kiyohito KONDO, Yuji YAMASHITA, Shigenari NARAHARA
  • Patent number: 10070765
    Abstract: A method of continuously producing a cleaning member obtained from a multilayer web that includes at least a fiber bundle and a non-woven fabric, includes the following steps: preparing a guide member provided with a pair of width-adjusting members having a predetermined interval therebetween; conveying a fiber bundle through the pair of width-adjusting members of the guide member to adjust the width of the fiber bundle strip so as to match the aforementioned interval; forming the multilayer web by overlaying the fiber bundle, the width of which has been adjusted, on the non-woven fabric; and joining the fiber bundle and non-woven fabric.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: September 11, 2018
    Assignee: UNICHARM CORPORATION
    Inventors: Shigetomo Takahashi, Hiroaki Goto, Takayuki Matsumoto, Yuji Yamashita
  • Patent number: 10052842
    Abstract: A composite structure having a laminated structure made of fiber reinforced plastic and metallic material comprises a base member(s) made of metallic material; and a reinforcement member(s) made of fiber reinforced plastic, the reinforcement member(s) comprising: a first reinforcement part(s) made of fiber reinforced plastic including reinforcement fibers which are aligned in a uni-direction, and a second reinforcement part(s) made of fiber reinforced plastic including at least reinforcement fibers which are aligned in a crossing direction relative to the uni-direction in which the reinforcement fibers of the first reinforcement part(s) are aligned, and interposed between the base member(s) and the first reinforcement part(s), the reinforcement member(s) further comprising a thermosetting resin included in a bonding site with the base member(s).
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: August 21, 2018
    Assignees: AISIN TAKAOKA CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuji Yamashita, Kiyohito Kondo, Takeki Matsumoto, Hirokazu Kawabe, Yoshiteru Inamoto
  • Patent number: 10030362
    Abstract: A cabin includes: a panel disposed on a side of an operator seat, the panel including: a plurality of cross members extending in a first direction; and a plurality of transverse members intersecting with the plurality of cross members each other and extending in a second direction; a glass panel disposed on a side of the panel; a window frame disposed on the glass panel; a window panel disposed on the window frame, the window panel being configured to move in the first direction or in the second direction; a projecting member disposed on a side of the window panel, the side being an identical side to the operator seat, the projecting member being configured to move together with the window panel; and a guide portion configured to accept insertion of the projecting member and to limit a moving distance of the window panel.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: July 24, 2018
    Assignee: KUBOTA CORPORATION
    Inventors: Yuji Yamashita, Hiroaki Kurachi, Masahiro Kuroda, Hiroyuki Anami, Toshihiko Takemura, Satoshi Tajima, Kunihiro Suzuki, Hayato Kawano, Hideo Imai