Patents by Inventor Hirofumi Kikuchi

Hirofumi Kikuchi 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: 12186855
    Abstract: Disclosed is a polishing pad including a polishing layer having a polishing surface, wherein the polishing surface includes a deep-groove region having a first pattern formed by a deep groove or hole having a depth of 0.3 mm or more, and a land region that is a region other than the deep-groove region, and the land region includes shallow recesses having a second pattern and a depth of 0.01 to 0.1 mm, and a plurality of island-like land portions surrounded by the shallow recesses and having a maximum distance in a horizontal direction of 8 mm or less.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: January 7, 2025
    Assignee: KURARAY CO., LTD.
    Inventors: Mitsuru Kato, Hirofumi Kikuchi, Chihiro Okamoto, Shinya Kato
  • Publication number: 20220226962
    Abstract: Disclosed is a polishing pad including a polishing layer having a polishing surface, wherein the polishing surface includes a deep-groove region having a first pattern formed by a deep groove or hole having a depth of 0.3 mm or more, and a land region that is a region other than the deep-groove region, and the land region includes shallow recesses having a second pattern and a depth of 0.01 to 0.1 mm, and a plurality of island-like land portions surrounded by the shallow recesses and having a maximum distance in a horizontal direction of 8 mm or less.
    Type: Application
    Filed: June 4, 2020
    Publication date: July 21, 2022
    Applicant: KURARAY CO., LTD.
    Inventors: Mitsuru KATO, Hirofumi KIKUCHI, Chihiro OKAMOTO, Shinya KATO
  • Patent number: 10696252
    Abstract: A vehicle body rear part structure includes a bumper beam, an extension, and a gusset. The bumper beam extends in a vehicle width direction in a rear part of a vehicle body. The extension is provided for attaching the bumper beam to the vehicle body. The gusset is provided between the bumper beam and the extension and at an inner position in a vehicle width direction of the extension. A deformation facilitating part is provided on a middle part of the gusset.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: June 30, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Atsushi Hasegawa, Hiroyoshi Watanabe, Keiichiro Okuyama, Hirofumi Kikuchi
  • Patent number: 10501125
    Abstract: A vehicle body rear portion structure includes a rear end panel, a rear side frame, a rear end cross member, a first gusset, and a second gusset. The rear end cross member extends in a vehicle width direction along the rear end panel and is separately disposed above the rear side frame. The first gusset connects the rear side frame to the rear end panel. The second gusset connects the rear side frame to the rear end cross member above the first gusset.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: December 10, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Yuki Muramatsu, Kengo Kishida, Hirofumi Kikuchi, Kazutaka Kanezashi, Keiichiro Okuyama
  • Patent number: 10471995
    Abstract: An upper side joint section that extends inward in a vehicle width direction from a vicinity of a rear side frame and a lateral side joint section that extends downward from the upper side joint section and that is separated in the vehicle width direction from the rear side frame are provided on a rear floor panel of a vehicle body rear part structure. The rear panel has: a frame joint part to which the rear side frame is joined; a first floor joint part to which the upper side joint section of the rear floor panel is joined; and a second floor joint part to which the lateral side joint section of the rear floor panel is joined. A longitudinal bead is provided on a part of the rear panel between the frame joint part and the second floor joint part. The longitudinal bead extends to a lower end of the rear panel and is opened downward.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: November 12, 2019
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kenta Sugawara, Kengo Kishida, Hirofumi Kikuchi, Kazutaka Kanezashi, Keiichiro Okuyama
  • Patent number: 10451445
    Abstract: An absolute encoder that receives a current from an electronic power supply includes: a plurality of regulators connected in parallel with one another that receive a drive current from an electronic power supply in which a magnitude of a constant voltage output to the absolute encoder and a magnitude of a drive current needed for outputting the constant voltage are different; a voltage detection unit configured to detect an output voltage of at least one regulator of the plurality of regulators; and an abnormality detection unit for detecting an abnormality of a current from an electronic power supply consumed when the absolute encoder is driven based on the output voltage detected by the voltage detection unit.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: October 22, 2019
    Assignee: FANUC CORPORATION
    Inventors: Shouhei Nisino, Hirofumi Kikuchi
  • Publication number: 20190218697
    Abstract: Disclosed herein is a method for manufacturing a polishing pad, including the step of filling the interior of bundles of ultrafine fibers which have an average fineness of from 0.01 to 0.8 dtex with a polymeric elastomer having a glass transition temperature of ?10° C. or below, storage moduli at 23° C. and 50° C. of from 90 to 900 MPa, and a water absorption ratio, when saturated with water at 50° C. of from 0.2 to 5 mass %. Also disclosed herein are polishing pads obtained by the method above.
    Type: Application
    Filed: March 28, 2019
    Publication date: July 18, 2019
    Applicant: KURARAY CO., LTD.
    Inventors: Kimio NAKAYAMA, Nobuo TAKAOKA, Mitsuru KATO, Hirofumi KIKUCHI
  • Patent number: 10309804
    Abstract: An encoder signal processor comprises an analog signal adjustment circuit for adjusting, based on an adjusting signal, at least one of an offset and an amplitude of a sinusoidal analog signal with two phases having a 90-degree difference outputted in accordance with a travel of a target to be measured, a position detection circuit for calculating position data of a target to be measured based on a digital signal obtained through analog/digital conversion of an analog signal adjusted, a velocity change amount detection circuit for detecting a change amount of velocity per predetermined detection cycle from a velocity calculated based on position data outputted while a target to be measured is traveling at a constant velocity, and an adjusting signal generation circuit for generating an adjusting signal that minimizes the change amount of velocity detected and transmitting the adjusting signal to the analog signal adjustment circuit.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: June 4, 2019
    Assignee: FANUC CORPORATION
    Inventors: Hirofumi Kikuchi, Takurou Hayashi
  • Publication number: 20190016282
    Abstract: A vehicle body rear part structure includes a bumper beam, an extension, and a gusset. The bumper beam extends in a vehicle width direction in a rear part of a vehicle body. The extension is provided for attaching the bumper beam to the vehicle body. The gusset is provided between the bumper beam and the extension and at an inner position in a vehicle width direction of the extension. A deformation facilitating part is provided on a middle part of the gusset.
    Type: Application
    Filed: June 4, 2018
    Publication date: January 17, 2019
    Inventors: Atsushi Hasegawa, Hiroyoshi Watanabe, Keiichiro Okuyama, Hirofumi Kikuchi
  • Publication number: 20190009822
    Abstract: An upper side joint section that extends inward in a vehicle width direction from a vicinity of a rear side frame and a lateral side joint section that extends downward from the upper side joint section and that is separated in the vehicle width direction from the rear side frame are provided on a rear floor panel of a vehicle body rear part structure. The rear panel has: a frame joint part to which the rear side frame is joined; a first floor joint part to which the upper side joint section of the rear floor panel is joined; and a second floor joint part to which the lateral side joint section of the rear floor panel is joined. A longitudinal bead is provided on a part of the rear panel between the frame joint part and the second floor joint part. The longitudinal bead extends to a lower end of the rear panel and is opened downward.
    Type: Application
    Filed: June 6, 2018
    Publication date: January 10, 2019
    Inventors: Kenta Sugawara, Kengo Kishida, Hirofumi Kikuchi, Kazutaka Kanezashi, Keiichiro Okuyama
  • Publication number: 20190002031
    Abstract: A vehicle body rear portion structure includes a rear end panel, a rear side frame, a rear end cross member, a first gusset, and a second gusset. The rear end cross member extends in a vehicle width direction along the rear end panel and is separately disposed above the rear side frame. The first gusset connects the rear side frame to the rear end panel. The second gusset connects the rear side frame to the rear end cross member above the first gusset.
    Type: Application
    Filed: June 4, 2018
    Publication date: January 3, 2019
    Inventors: Yuki Muramatsu, Kengo Kishida, Hirofumi Kikuchi, Kazutaka Kanezashi, Keiichiro Okuyama
  • Publication number: 20180372514
    Abstract: An absolute encoder that receives a current from an electronic power supply includes: a plurality of regulators connected in parallel with one another that receive a drive current from an electronic power supply in which a magnitude of a constant voltage output to the absolute encoder and a magnitude of a drive current needed for outputting the constant voltage are different; a voltage detection unit configured to detect an output voltage of at least one regulator of the plurality of regulators; and an abnormality detection unit for detecting an abnormality of a current from an electronic power supply consumed when the absolute encoder is driven based on the output voltage detected by the voltage detection unit.
    Type: Application
    Filed: June 18, 2018
    Publication date: December 27, 2018
    Applicant: FANUC CORPORATION
    Inventors: Shouhei Nisino, Hirofumi Kikuchi
  • Publication number: 20170075374
    Abstract: A numerical control system includes a numerical controller, an absolute encoder which detects a rotational displacement of a motor controlled by the numerical controller, batteries each of which supplies backup power to at least one of the numerical controller and the absolute encoder, A/D conversion circuits which analog/digital-convert voltages output from the batteries and output digital signals, the A/D conversion circuits being located in one device selected from the numerical controller and the absolute encoder and supplied with a backup voltage by the battery, and a display which displays the voltage values of the batteries on the basis of the above-mentioned digital signals and is located in the numerical controller.
    Type: Application
    Filed: September 9, 2016
    Publication date: March 16, 2017
    Applicant: FANUC CORPORATION
    Inventors: Youhei Kondou, Hirofumi Kikuchi
  • Patent number: 9466902
    Abstract: A detector comprising a circuit board, a board-side connector which is mounted on the circuit board, and a flexible cable which has a terminal part inserted in the board-side connector, wherein a reinforcement member of the flexible cable is attached to an end part of the flexible cable which includes the terminal part, and the reinforcement member includes a foldable part which allows local bending of the end part of the flexible cable.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: October 11, 2016
    Assignee: Fanuc Corporation
    Inventors: Taisei Fujimoto, Hirofumi Kikuchi
  • Publication number: 20160252375
    Abstract: An encoder signal processor comprises an analog signal adjustment circuit for adjusting, based on an adjusting signal, at least one of an offset and an amplitude of a sinusoidal analog signal with two phases having a 90-degree difference outputted in accordance with a travel of a target to be measured, a position detection circuit for calculating position data of a target to be measured based on a digital signal obtained through analog/digital conversion of an analog signal adjusted, a velocity change amount detection circuit for detecting a change amount of velocity per predetermined detection cycle from a velocity calculated based on position data outputted while a target to be measured is traveling at a constant velocity, and an adjusting signal generation circuit for generating an adjusting signal that minimizes the change amount of velocity detected and transmitting the adjusting signal to the analog signal adjustment circuit.
    Type: Application
    Filed: February 25, 2016
    Publication date: September 1, 2016
    Applicant: FANUC CORPORATION
    Inventors: Hirofumi Kikuchi, Takurou Hayashi
  • Patent number: 9321142
    Abstract: The subject is to provide a polymer material which enables to improve planarity and planarization efficiency of a polished surface and is useful as a polishing pad which generates only a few scratches. The said subject is solved by a polymer material having a tensile modulus at 50° C. after saturation swelling with 50° C. water of 130 to 800 MPa, a loss tangent at 50° C. of not more than 0.2, and a contact angle with water of not more than 80°.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: April 26, 2016
    Assignee: KURARAY CO., LTD.
    Inventors: Chihiro Okamoto, Shinya Kato, Shunji Kaneda, Hirofumi Kikuchi
  • Publication number: 20150229052
    Abstract: A detector comprising a circuit board, a board-side connector which is mounted on the circuit board, and a flexible cable which has a terminal part inserted in the board-side connector, wherein a reinforcement member of the flexible cable is attached to an end part of the flexible cable which includes the terminal part, and the reinforcement member includes a foldable part which allows local bending of the end part of the flexible cable.
    Type: Application
    Filed: February 10, 2015
    Publication date: August 13, 2015
    Inventors: Taisei Fujimoto, Hirofumi Kikuchi
  • Patent number: 8823576
    Abstract: When a communication abnormality occurs between an encoder and communication circuit apparatus in a work apparatus feeding back data output from encoders for control by a control apparatus, an encoder communication circuit is used in place of the encoder to identify the location of occurrence of the abnormality. The encoder communication circuit outputs encoder data comprised position or speed data and alarm data to said control apparatus when connected to the control apparatus through a communication cable.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: September 2, 2014
    Assignee: Fanuc Ltd
    Inventors: Mitsuyuki Taniguchi, Hirofumi Kikuchi
  • Patent number: 8692502
    Abstract: An encoder having a function for detecting noise which may affect an internal signal of the encoder, without using a noise detecting circuit within the encoder, whereby the cost and size thereof may be reduced. The encoder has a detecting part adapted to detect the movement of an electric motor or a driven object; a signal processing circuit adapted to process a detection signal from the detecting part and obtain positional data of the motor or the object; and a transmitting part adapted to transmit the positional data from the signal processing circuit at regular time intervals and a fluctuation component calculated on the basis of the positional data, to external equipment. The signal processing circuit has a fluctuation component detecting circuit adapted to detect a fluctuation comment included in the calculated positional data, and the detected fluctuation component is transmitted to the external controller as an amount of noise.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: April 8, 2014
    Assignee: Fanuc Corporation
    Inventors: Mitsuyuki Taniguchi, Hiroya Terashima, Hirofumi Kikuchi, Tokuhisa Matsukane
  • Patent number: 8647179
    Abstract: It is an object of the present invention to provide a polishing pad that is resistant to scratching and also has excellent flattening performance. One aspect of the present invention is a polishing pad, comprising a fiber-entangled body formed from fiber bundles made up of ultrafine fibers in which the average cross sectional area is between 0.01 and 30 ?m2, and a macromolecular elastomer, wherein part of the macromolecular elastomer is present inside the fiber bundles, whereby the ultrafine fibers are bundled, the number of fiber bundles per unit of surface area present in a cross section in the thickness direction is at least 600 bundles per square millimeter, and the volumetric ratio of a portion excluding voids is between 55 and 95%.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: February 11, 2014
    Assignee: Kuraray Co., Ltd.
    Inventors: Kimio Nakayama, Nobuo Takaoka, Mitsuru Kato, Hirofumi Kikuchi, Jiro Tanaka