Patents by Inventor Yuji Kubota

Yuji Kubota 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: 11114672
    Abstract: A carbon catalyst, a battery electrode, and a battery, each exhibits excellent catalytic performance. A carbon catalyst contains two kinds of transition metals and has such a carbon structure that an interplanar spacing d002, which is determined from a Bragg angle of one of three diffraction peaks fbroad, fmiddle, and fnarrow obtained by separating a diffraction peak around a diffraction angle (2?) of 26° in an X-ray diffraction pattern of powder X-ray diffraction with a CuK? ray, the one diffraction peak being the diffraction peak fbroad, is 0.374 nm or more.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: September 7, 2021
    Assignees: NISSHINBO HOLDINGS INC., NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Yoshikazu Kobayashi, Yuji Kubota, Jun-ichi Ozaki, Takafumi Ishii, Takuya Maie
  • Publication number: 20210190186
    Abstract: In a screw device where a shim is disposed between two nuts, a screw device that can detect preload is provided. The preload detectable screw device includes: two nuts; a shim sandwiched and compressed between the two nuts; a coupling portion configured to couple the two nuts in such a manner as to be incapable of relative rotation to each other; and a force sensor for detecting preload. A contact surface of at least one of the two nuts with the shim is provided with a recess, spaced apart from the coupling portion, in such a manner as to reduce the contact area. The force sensor is attached near the recess on an outer surface of the shim.
    Type: Application
    Filed: October 12, 2018
    Publication date: June 24, 2021
    Inventors: Yuji KUBOTA, Hirofumi SUZUKI, Takamitsu TOMIYAMA
  • Patent number: 10935116
    Abstract: A seal member for a ball screw device, which is fixed to an axial end surface of a nut member of the ball screw device and is configured to seal a gap between the nut member and the screw shaft, the seal member including: a plurality of base plates which each have a through hole having an inner diameter larger than an outer diameter of the screw shaft; a spacer plate, which is sandwiched between two base plates adjacent to each other, and has a seal accommodation hole having an inner diameter larger than an inner diameter of a through hole of the base plates; and a seal plate, which has a shaft-fitting hole corresponding to a sectional shape of the screw shaft in a direction perpendicular to an axial direction, and is arranged in the seal accommodation hole of the spacer plates.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: March 2, 2021
    Assignee: THK CO., LTD.
    Inventors: Yuji Kubota, Futoshi Nakamura, Tetsuhiro Nishide, Kotaro Kawai, Bin Zhao, Tomoyuki Sugiyama
  • Publication number: 20200408290
    Abstract: A seal member for a ball screw device, which is fixed to an axial end surface of a nut member of the ball screw device and is configured to seal a gap between the nut member and the screw shaft, the seal member including: a plurality of base plates which each have a through hole having an inner diameter larger than an outer diameter of the screw shaft; a spacer plate, which is sandwiched between two base plates adjacent to each other, and has a seal accommodation hole having an inner diameter larger than an inner diameter of a through hole of the base plates; and a seal plate, which has a shaft-fitting hole corresponding to a sectional shape of the screw shaft in a direction perpendicular to an axial direction, and is arranged in the seal accommodation hole of the spacer plates.
    Type: Application
    Filed: January 5, 2018
    Publication date: December 31, 2020
    Applicant: THK CO., LTD.
    Inventors: Yuji Kubota, Futoshi Nakamura, Tetsuhiro Nishide, Kotaro Kawai, Bin Zhao, Tomoyuki Sugiyama
  • Patent number: 10821905
    Abstract: A method, apparatus, and system for mounting interchangeably mounting a module to a vehicle seat. The module may include a mounting portion. The docking apparatus may include a mounting receiving portion selectively engageable with the mounting portion of the module. The docking apparatus may further include one or more seat anchor fastening members that are selectively engageable with one or more child seat anchors of the vehicle seat. The docking apparatus may further include a support member operatively connected to an adjustment portion. The support member abut a portion of the vehicle seat, and the adjustment portion may be capable of altering the position of the docking apparatus with relation to the vehicle seat.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: November 3, 2020
    Assignee: HONDA MOTOR CO., LTD
    Inventor: Yuji Kubota
  • Patent number: 10780804
    Abstract: A vehicle seat that can include a seat cushion and a concealing lid. The seat cushion can include a lower foam portion, an upper foam portion, and a buckle hole that extends through each of the lower foam portion and the upper foam portion. The concealing lid can be movably connected to the seat cushion to selectively close and open at least a portion of the buckle hole. The concealing lid can span at least a portion of the buckle hole when the concealing lid is in the closed position. The concealing lid can include an end portion that extends into a gap between the upper foam portion and the lower foam portion when the concealing lid is in the closed position. The end portion of the concealing lid can be spaced away from lower foam portion when the concealing lid is in the opened position.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: September 22, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuji Kubota, Derek S. Lindsay, Ross L. Burghardt, Michael C. Mraz
  • Publication number: 20200243873
    Abstract: A carbon catalyst, a battery electrode, and a battery each having excellent catalytic activity and excellent durability. The carbon catalyst includes iron, exhibits a weight reduction ratio in the temperature range from 200° C. to 1,200° C. of 12.0 wt % or less measured by thermogravimetric analysis in a nitrogen atmosphere, and has a carbon structure that exhibits, in X-ray absorption fine structure analysis of a K absorption edge of the iron, the following (a) and/or (b): (a) a ratio of a normalized absorbance at 7,130 eV to a normalized absorbance at 7,110 eV is 7.0 or more; and (b) a ratio of a normalized absorbance at 7,135 eV to a normalized absorbance at 7,110 eV is 7.0 or more.
    Type: Application
    Filed: July 3, 2018
    Publication date: July 30, 2020
    Applicant: NISSHINBO HOLDINGS INC.
    Inventors: Yoshikazu KOBAYASHI, Yuji KUBOTA, Tetsutaro SATO, Takeaki KISHIMOTO
  • Publication number: 20200171470
    Abstract: A carbon catalyst has: a carbon structure that exhibits a nitrogen desorption temperature range from 800° C.-1,000° C. of 0.75×10?5 mol/g or more or a nitrogen desorption amount in the range from 600° C. to 1,000° C. of 1.20×10?5 mol/g or more in a temperature programmed desorption method including measuring nitrogen desorption amount temperature range from 600° C. -1,000° C.; a carbon structure exhibits a zeta potential isoelectric point of pH 9.2 or more; or a carbon structure exhibits a ratio of an intensity of a first nitrogen peak within a range of a binding energy of 398.0±1.0 eV, to an intensity of a second nitrogen peak having a peak top within a range of a binding energy of 400.5±1.0 eV, of 0.620 or more, the first and second nitrogen peaks obtained by separating a peak derived from a 1s orbital of a nitrogen atom in a photoelectron spectrum obtained by X-ray photoelectron spectroscopy.
    Type: Application
    Filed: July 3, 2018
    Publication date: June 4, 2020
    Applicant: NISSHINBO HOLDINGS INC.
    Inventors: Yuji KUBOTA, Takeaki KISHIMOTO, Kumi NARIZUKA, Tetsutaro SATO
  • Publication number: 20200127301
    Abstract: A carbon catalyst has a carbon structure with a crystallite size Lc falling within 0.90 nm or more and 1.20 nm or less calculated through use of a Bragg angle of a diffraction peak fbroad at a diffraction angle 2? of 24.0°±4.0° obtained by separating a diffraction peak in the vicinity of a diffraction angle 2? of 26° in an X-ray diffraction pattern obtained by powder X-ray diffraction using a CuK? ray, and a carbon dioxide desorption amount from 650° C. to 1,200° C. of 97 ?mol/g or less, a total of a carbon monoxide desorption amount and a carbon dioxide desorption amount from 650° C. to 1,200° C. of 647 ?mol/g or less, or a carbon monoxide desorption amount from 650° C. to 1,200° C. of 549 ?mol/g or less in a temperature programmed desorption method including measuring a carbon dioxide desorption amount from 25° C. to 1,200° C.
    Type: Application
    Filed: July 3, 2018
    Publication date: April 23, 2020
    Applicant: NISSHINBO HOLDINGS INC.
    Inventors: Tetsutaro SATO, Yuji KUBOTA, Takeaki KISHIMOTO, Kumi NARIZUKA, Koji KAMATA, Yoshikazu KOBAYASHI
  • Patent number: 10578010
    Abstract: In a control device for an internal combustion engine, when a target pre/post compressor pressure ratio calculated by a target pre/post compressor pressure ratio calculation part is more than a turbine-limit-time pre/post compressor pressure ratio calculated by a turbine-limit-time pre/post compressor pressure ratio calculation part, an upper limit of the target pre/post compressor pressure ratio is limited by the turbine-limit-time pre/post compressor pressure ratio, and a change rate of the target pre/post compressor pressure ratio is limited by a change rate limit value during a change rate limitation period after upper limit limitation processing starts, thereby preventing the target pre/post compressor pressure ratio from being suddenly fluctuated by a sudden fluctuation in a compressor passage flow rate, and suppressing the occurrence of the over rotation of the turbine and the control hunting.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: March 3, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Toshiaki Maruo, Yuji Kubota, Takahiko Ono
  • Patent number: 10525853
    Abstract: A method, apparatus, and system for retaining a stow strap is disclosed. The stow strap may be usable with a stowable automotive seat. A seat stowing mechanism may be housed at least partially within the inner portion of the seat. A stow strap may be interoperable with the seat stowing mechanism, wherein the stow strap passes from the inner seat to the outer rear seatback surface of the seat through an opening in the outer rear seatback of the seat. Pulling the stow strap imparts a force in a first direction on the seat stowing mechanism. A stow strap retaining mechanism may be spaced from the opening and may provide a reactive force in a return direction to return the stow strap toward the outer rear seatback surface when the stow strap is pulled away from the rear seatback surface.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: January 7, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuji Kubota, Derek S. Lindsay, Ross L. Burghardt
  • Patent number: 10436298
    Abstract: Provided a screw feeding device, in which a buffer mechanism is incorporated between a rod member and a nut member. The screw feeding device includes: a screw shaft; the nut member, which has a flange portion, the rod member, which has a mounting portion facing the flange portion and a hollow portion; and a buffer mechanism, which connects the flange portion and the mounting portion, in which the buffer mechanism includes: a plurality of shafts, a pair of separators, through which the plurality of shafts pass, and which is movable along the plurality of shafts; and an elastic member, provided between the pair of separators, in which the plurality of shafts include: a shaft, fixed to the flange portion; and a shaft fixed to the mounting portion.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: October 8, 2019
    Assignees: HIRATA CORPORATION, THK CO., LTD.
    Inventors: Bungo Matsumoto, Yuji Kubota, Tomoya Uchikoshi
  • Publication number: 20190275917
    Abstract: A method, apparatus, and system for retaining a stow strap is disclosed. The stow strap may be usable with a stowable automotive seat. A seat stowing mechanism may be housed at least partially within the inner portion of the seat. A stow strap may be interoperable with the seat stowing mechanism, wherein the stow strap passes from the inner seat to the outer rear seatback surface of the seat through an opening in the outer rear seatback of the seat. Pulling the stow strap imparts a force in a first direction on the seat stowing mechanism. A stow strap retaining mechanism may be spaced from the opening and may provide a reactive force in a return direction to return the stow strap toward the outer rear seatback surface when the stow strap is pulled away from the rear seatback surface.
    Type: Application
    Filed: March 6, 2018
    Publication date: September 12, 2019
    Inventors: Yuji KUBOTA, Derek S. Lindsay, Ross L. Burghardt
  • Publication number: 20190275949
    Abstract: A method, apparatus, and system for mounting interchangeably mounting a module to a vehicle seat. The module may include a mounting portion. The docking apparatus may include a mounting receiving portion selectively engageable with the mounting portion of the module. The docking apparatus may further include one or more seat anchor fastening members that are selectively engageable with one or more child seat anchors of the vehicle seat. The docking apparatus may further include a support member operatively connected to an adjustment portion. The support member abut a portion of the vehicle seat, and the adjustment portion may be capable of altering the position of the docking apparatus with relation to the vehicle seat.
    Type: Application
    Filed: March 12, 2018
    Publication date: September 12, 2019
    Inventor: Yuji KUBOTA
  • Patent number: 10388967
    Abstract: A porous carbon catalyst exhibiting excellent catalytic activity and a method of producing the same, and an electrode and a battery. The porous carbon catalyst is obtained through carbonization of an organic polymer porous body having a skeleton containing a metal in an inside thereof. The porous carbon catalyst may have a skeleton containing the metal in an inside thereof, and the skeleton may be a particle aggregate-like skeleton. The method of producing a porous carbon catalyst includes carbonizing an organic polymer porous body having a skeleton containing a metal in an inside thereof.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: August 20, 2019
    Assignee: NISSHINBO HOLDINGS INC.
    Inventors: Yasuo Imashiro, Yuji Kubota, Akiko Taira
  • Publication number: 20190190034
    Abstract: A carbon catalyst, a battery electrode, and a battery, each exhibits excellent catalytic performance. A carbon catalyst contains two kinds of transition metals and has such a carbon structure that an interplanar spacing d002, which is determined from a Bragg angle of one of three diffraction peaks fbroad, fmiddle, and fnarrow obtained by separating a diffraction peak around a diffraction angle (2?) of 26° in an X-ray diffraction pattern of powder X-ray diffraction with a CuK? ray, the one diffraction peak being the diffraction peak fbroad, is 0.374 nm or more.
    Type: Application
    Filed: June 1, 2017
    Publication date: June 20, 2019
    Applicants: NISSHINBO HOLDINGS INC., NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY
    Inventors: Yoshikazu KOBAYASHI, Yuji KUBOTA, Jun-ichi OZAKI, Takafumi ISHII, Takuya MAIE
  • Publication number: 20190024575
    Abstract: In a control device for an internal combustion engine, when a target pre/post compressor pressure ratio calculated by a target pre/post compressor pressure ratio calculation part is more than a turbine-limit-time pre/post compressor pressure ratio calculated by a turbine-limit-time pre/post compressor pressure ratio calculation part, an upper limit of the target pre/post compressor pressure ratio is limited by the turbine-limit-time pre/post compressor pressure ratio, and a change rate of the target pre/post compressor pressure ratio is limited by a change rate limit value during a change rate limitation period after upper limit limitation processing starts, thereby preventing the target pre/post compressor pressure ratio from being suddenly fluctuated by a sudden fluctuation in a compressor passage flow rate, and suppressing the occurrence of the over rotation of the turbine and the control hunting.
    Type: Application
    Filed: January 17, 2018
    Publication date: January 24, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Toshiaki MARUO, Yuji KUBOTA, Takahiko ONO
  • Publication number: 20180328411
    Abstract: The lubricating oil supply device including: a storage body, which has a large number of air gaps thereinside, and is configured to retain the lubricating oil in the air gaps; a casing, which includes an accommodating chamber for the storage body, has an opening facing the raceway shaft and opening the accommodating chamber, and is fixed to the slide member; and a coating body, which is arranged in the opening of the casing to be held in abutment against the raceway shaft, and receives the lubricating oil to be supplied from the storage body, wherein the storage body has a cutout portion corresponding to the opening of the casing, and wherein the coating body has an air gap ratio smaller than an air gap ratio of the storage body and is sandwiched in the cutout portion of the storage body to push outward the cutout portion.
    Type: Application
    Filed: November 30, 2016
    Publication date: November 15, 2018
    Applicant: THK CO., LTD.
    Inventors: Masahiko Yoshino, Yuji Kubota, Yohei Amemiya
  • Publication number: 20180259045
    Abstract: Provided a screw feeding device, in which a buffer mechanism is incorporated between a rod member and a nut member. The screw feeding device includes a screw shaft; the nut member, which has a flange portion, the rod member, which has a mounting portion facing the flange portion and a hollow portion, and a buffer mechanism, which connects the flange portion and the mounting portion, in which the buffer mechanism includes, a plurality of shafts, a pair of separators, through which the plurality of shafts pass, and which is movable along the plurality of shafts; and an elastic member, provided between the pair of separators, in which the plurality of shafts include: a shaft, fixed to the flange portion; and a shaft fixed to the mounting portion.
    Type: Application
    Filed: December 3, 2015
    Publication date: September 13, 2018
    Applicants: HIRATA CORPORATION, HIRATA CORPORATION, THK CO., LTD., THK CO., LTD.
    Inventors: Bungo Matsumoto, Yuji Kubota, Tomoya Uchikoshi
  • Patent number: 10066716
    Abstract: A disclosed screw device provides an allowance for the accuracy of a recess in an end surface of a nut. A nut has a communicating hole communicating in an axial direction, and is provided at an axial end surface of the nut with a recess communicating with the communicating hole. A circulation member including a turn-around path is placed in the recess. When the circulation member is placed in the recess, the turn-around path of the circulation member is linked to a loaded rolling element rolling groove and the communicating hole of the nut to form a circulation path of a rolling element. A clearance between the circulation member and a wall surface of the recess permits the circulation member to move. The circulation member placed in the recess is not fixed in the recess, and is covered with a lid member to be attached to the nut.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: September 4, 2018
    Assignee: THK CO., LTD.
    Inventors: Futoshi Nakamura, Tetsuhiro Nishide, Yuji Kubota, Tsutomu Togashi