Patents by Inventor Akihiro Koike

Akihiro Koike 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: 10635043
    Abstract: A powder container is for use with an image forming apparatus, and the image forming apparatus includes a driving protrusion that is rotatable and that protrudes toward an upstream side in an insertion direction in which the powder container is inserted. The powder container includes a container body to store powder, a cap attached to the container body, and a transmitted structure provided on the cap to contact the driving protrusion. The transmitted structure extends outward from an outer circumference of the powder container. The cap is rotatable relative to the container body in a predetermined angular range. The rotation of the cap relative to the container body is restricted so that the container body rotates along with the rotation of the cap when the rotation of the cap exceeds the predetermined angular range.
    Type: Grant
    Filed: July 17, 2019
    Date of Patent: April 28, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Nobuo Takami, Kiyonori Tsuda, Ryoichi Teranishi, Junichi Matsumoto, Toshio Koike, Yutaka Takahashi, Junji Yamabe, Akihiro Kawakami, Keinosuke Kondoh, Atsushi Inoue
  • Publication number: 20200063688
    Abstract: A problem is to provide a sliding member capable of improving friction characteristics under an environment of a lubricant containing Mo, and a production method therefor. A solution is a sliding member 10, wherein a sliding portion 11 is formed of a metallic material, and the sliding member 10 has, at a surface layer part of the sliding portion 11, a Ti-containing thermally sprayed coating 12 formed by thermally spraying, as a thermal spraying material, a metallic material containing Ti as a composition. The sliding member 10 slides under the environment of the lubricant containing Mo as an additive, in which active Ti exposed on a surface by sliding accelerates decomposition reaction of the additive contained in the lubricant to form a molybdenum disulfide-containing low-friction coating having low friction on the surface of the sliding portion 11.
    Type: Application
    Filed: August 20, 2019
    Publication date: February 27, 2020
    Applicants: TOYOTA MOTOR EAST JAPAN, INC., TOYOTA JIDOSHA KABUSHIKI KAISHA, Tocalo Co., Ltd.
    Inventors: Ryo Koike, Kazuyoshi Manabe, Akihiro Kanno
  • Patent number: 10525725
    Abstract: There is provided an image recording method including applying a first ink and a second ink, each of which contains a surfactant and the like, to a recording medium. Critical micelle concentration c1 (mass %) of the surfactant and concentration c2 (mass %) of the surfactant in each ink satisfy a relationship of “c1×2?c2”; an HLB value of the surfactant is smaller than 13; content V1 (mass %) of the surfactant in the first ink is larger than content V2 (mass %) of the surfactant in the second ink.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: January 7, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Akihiro Taya, Masahiro Terada, Hidetaka Kawamura, Yohei Masada, Masanobu Ootsuka, Takaharu Aotani, Yutaka Yoshimasa, Shoji Koike
  • Patent number: 10513623
    Abstract: An aqueous ink according to the present invention is an aqueous ink for ink jet, containing a solvent A and a resin particle. The solvent A is alcohol of which aqueous solubility at 20° C. is 5% by mass or less, a vapor pressure at 20° C. is 0.5 mmHg or less and a surface tension at 20° C. is 30 mN/m or more. A content (% by mass) of the solvent A is 0.7 times or more to 7.0 times or less in terms of a ratio based on aqueous solubility (% by mass) of the solvent A at 20° C. The amount of a surface anionic functional group of the resin particle is 0.55 mmol/g or more to 2.00 mmol/g or less.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: December 24, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masanobu Ootsuka, Masahiro Terada, Hidetaka Kawamura, Akihiro Taya, Yohei Masada, Takaharu Aotani, Shoji Koike, Yutaka Yoshimasa
  • Publication number: 20190339642
    Abstract: A powder container is for use with an image forming apparatus, and the image forming apparatus includes a driving protrusion that is rotatable and that protrudes toward an upstream side in an insertion direction in which the powder container is inserted. The powder container includes a container body to store powder, a cap attached to the container body, and a transmitted structure provided on the cap to contact the driving protrusion. The transmitted structure extends outward from an outer circumference of the powder container. The cap is rotatable relative to the container body in a predetermined angular range. The rotation of the cap relative to the container body is restricted so that the container body rotates along with the rotation of the cap when the rotation of the cap exceeds the predetermined angular range.
    Type: Application
    Filed: July 17, 2019
    Publication date: November 7, 2019
    Inventors: Nobuo TAKAMI, Kiyonori TSUDA, Ryoichi TERANISHI, Junichi MATSUMOTO, Toshio KOIKE, Yutaka TAKAHASHI, Junji YAMABE, Akihiro KAWAKAMI, Keinosuke KONDOH, Atsushi INOUE
  • Patent number: 10394186
    Abstract: A powder container is for use with an image forming apparatus, and the image forming apparatus includes a driving protrusion that is rotatable and that protrudes toward an upstream side in an insertion direction in which the powder container is inserted. The powder container includes a container body to store powder, a cap attached to the container body, and a transmitted structure provided on the cap to contact the driving protrusion. The transmitted structure extends outward from an outer circumference of the powder container. The cap is rotatable relative to the container body in a predetermined angular range. The rotation of the cap relative to the container body is restricted so that the container body rotates along with the rotation of the cap when the rotation of the cap exceeds the predetermined angular range.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: August 27, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Nobuo Takami, Kiyonori Tsuda, Ryoichi Teranishi, Junichi Matsumoto, Toshio Koike, Yutaka Takahashi, Junji Yamabe, Akihiro Kawakami, Keinosuke Kondoh, Atsushi Inoue
  • Patent number: 10371603
    Abstract: A device for measuring a tire ground state includes a traveling surface, a tire drive unit grounding a tire on the traveling surface and rolls the tire, a measuring sheet mounted to a partial area of the traveling surface for measuring the tire ground state, a protection sheet covering the measuring sheet, and a backward and forward tensile force application mechanism applying a tensile force along a tire forward traveling direction to the protection sheet. A space conducting the protection sheet to a portion below the traveling surface is formed in at least one of a delay side and an advance side of the measuring sheet in the tire forward traveling direction on the traveling surface, and the backward and forward tensile force application mechanism is structured such as to pull at least one end of the protection sheet in the tire forward traveling direction from below the traveling surface.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: August 6, 2019
    Assignee: TOYO TIRE CORPORATION
    Inventor: Akihiro Koike
  • Publication number: 20190232734
    Abstract: In the present invention, virtual regions each having a width of 1/2n (where n is a natural number greater than or equal to 1) of the detection width of a force sensor provided on a tire travel surface are set in a region to be measured of a tire. The contact position between the tire travel surface and tire is shifted along a prescribed direction such that the force sensor touches a single virtual region a plurality of times, and the sensor is used to carry out force measurement a plurality of times. Mapping data is generated that associates each measurement time with data about the positional relationship between the virtual regions and sensor. Force values for each virtual region are calculated on the basis of the sensor detection values and the force balance relationship between the sensor and virtual regions determined by a mapping data generation unit.
    Type: Application
    Filed: June 5, 2017
    Publication date: August 1, 2019
    Applicant: TOYO TIRE CORPORATION
    Inventor: Akihiro Koike
  • Publication number: 20190204775
    Abstract: A powder container is for use with an image forming apparatus, and the image forming apparatus includes a driving protrusion that is rotatable and that protrudes toward an upstream side in an insertion direction in which the powder container is inserted. The powder container includes a container body to store powder, a cap attached to the container body, and a transmitted structure provided on the cap to contact the driving protrusion. The transmitted structure extends outward from an outer circumference of the powder container. The cap is rotatable relative to the container body in a predetermined angular range. The rotation of the cap relative to the container body is restricted so that the container body rotates along with the rotation of the cap when the rotation of the cap exceeds the predetermined angular range.
    Type: Application
    Filed: December 28, 2018
    Publication date: July 4, 2019
    Inventors: Nobuo TAKAMI, Kiyonori TSUDA, Ryoichi TERANISHI, Junichi MATSUMOTO, Toshio KOIKE, Yutaka TAKAHASHI, Junji YAMABE, Akihiro KAWAKAMI, Keinosuke KONDOH, Atsushi INOUE
  • Publication number: 20190113440
    Abstract: A method having: acquiring pressure distribution data at which there are a plurality of measurement points for which forces along three axes have been measured; calculating friction coefficients based on the forces along the three axes at the respective measurement points; generating associated data, linking a contact patch pressure and a maximum friction coefficient that is capable of being exhibited at the contact patch pressure, for a plurality of situations based on a single situation represented by a contact patch pressure and a friction coefficient exhibited at the contact patch pressure at a single measurement point; identifying maximum friction coefficients corresponding to contact patch pressures at respective measurement points based on the associated data; and calculating a margin of the friction coefficient, which is a difference between the maximum friction coefficient and the friction coefficient.
    Type: Application
    Filed: October 1, 2018
    Publication date: April 18, 2019
    Applicant: TOYO TIRE & RUBBER CO., LTD.
    Inventor: Akihiro Koike
  • Publication number: 20180164187
    Abstract: A device for measuring a tire ground state includes a traveling surface, a tire drive unit grounding a tire on the traveling surface and rolls the tire, a measuring sheet mounted to a partial area of the traveling surface for measuring the tire ground state, a protection sheet covering the measuring sheet, and a backward and forward tensile force application mechanism applying a tensile force along a tire forward traveling direction to the protection sheet. A space conducting the protection sheet to a portion below the traveling surface is formed in at least one of a delay side and an advance side of the measuring sheet in the tire forward traveling direction on the traveling surface, and the backward and forward tensile force application mechanism is structured such as to pull at least one end of the protection sheet in the tire forward traveling direction from below the traveling surface.
    Type: Application
    Filed: November 8, 2017
    Publication date: June 14, 2018
    Applicant: TOYO TIRE & RUBBER CO., LTD.
    Inventor: Akihiro Koike
  • Patent number: 7100595
    Abstract: In relation to a blade cutting stone or concrete, a blade, preventing wearing of a core while preventing the core from wobbling, cuttable at a stable speed is provided. In a blade formed by providing slots on the outer peripheral edge of a circular core and fixing a superabrasive layer to a portion of the outer peripheral surface of the core located between the slots, the superabrasive layer consists of a first superabrasive layer having an extension formed by partially extending the superabrasive layer toward the inner periphery of the core and a second superabrasive layer.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: September 5, 2006
    Assignee: A.L.M.T. Corp.
    Inventors: Akihiro Koike, Takahiro Hirata
  • Publication number: 20050121017
    Abstract: In relation to a blade cutting stone or concrete, a blade, preventing wearing of a core while preventing the core from wobbling, cuttable at a stable speed is provided. In a blade formed by providing slots on the outer peripheral edge of a circular core and fixing a superabrasive layer to a portion of the outer peripheral surface of the core located between the slots, the superabrasive layer consists of a first superabrasive layer having an extension formed by partially extending the superabrasive layer toward the inner periphery of the core and a second superabrasive layer.
    Type: Application
    Filed: March 28, 2003
    Publication date: June 9, 2005
    Inventors: Akihiro Koike, Takahiro Hirata
  • Patent number: 6614194
    Abstract: Two motor fans are driven by two 4-pole direct current motors, respectively. Rotational speed of the two motors is controlled in three stages, namely low speed, intermediate speed and high speed. Specifically, at the time of low speed operation the two motors are connected in series with four poles, at the time of intermediate speed operation the two motors are connected in parallel with three poles, and at the time of high speed operation the two motors are connected in parallel with four poles.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: September 2, 2003
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Toshimi Kobayashi, Akihiro Koike, Hironori Saito, Ayumu Kubota
  • Publication number: 20020093299
    Abstract: Two motor fans are driven by two 4-pole direct current motors, respectively. Rotational speed of the two motors is controlled in three stages, namely low speed, intermediate speed and high speed. Specifically, at the time of low speed operation the two motors are connected in series with four poles, at the time of intermediate speed operation the two motors are connected in parallel with three poles, and at the time of high speed operation the two motors are connected in parallel with four poles.
    Type: Application
    Filed: January 7, 2002
    Publication date: July 18, 2002
    Inventors: Toshimi Kobayashi, Akihiro Koike, Hironori Saito, Ayumu Kubota
  • Patent number: 5697359
    Abstract: A blade comprises a disc-shaped substrate having a major surface and an outer peripheral edge portion encircling the major surface, and an abrasive grain layer mounted on the outer peripheral edge portion of the substrate. The substrate includes a first disc having a major surface, and a second disc having a major surface which is superposed on that of the first disc. The major surface of the second disc is separated from that of the first disc, thereby defining a clearance between the major surfaces of the first and second discs and correspondingly forming a convex surface region on the outside surface of the substrate. The peripheral portion of the convex surface region is provided with a contact portion where the major surfaces of the first and second discs are slidably in contact with each other.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: December 16, 1997
    Assignee: Osaka Diamond Industrial Co.
    Inventors: Yukio Okanishi, Kosuke Mitsui, Akihiro Koike, Nobuo Urakawa, Tsutomu Takubo
  • Patent number: D512293
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: December 6, 2005
    Assignee: A.L.M.T. Corp.
    Inventors: Akihiro Koike, Takahiro Hirata
  • Patent number: D483631
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: December 16, 2003
    Assignee: A.L.M.T. Corp.
    Inventors: Akihiro Koike, Takahiro Hirata
  • Patent number: D392864
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: March 31, 1998
    Assignee: Osaka Diamond Industrial Co., Ltd.
    Inventors: Akihiro Koike, Tamotsu Nakano, Mineo Ohnishi
  • Patent number: D422865
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: April 18, 2000
    Assignee: Osaka Diamond Industrial Co., Ltd.
    Inventors: Akihiro Koike, Tamotsu Nakano, Mineo Ohnishi