Patents by Inventor Takuya Kitamura

Takuya Kitamura 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: 10719028
    Abstract: A process cartridge includes a developer carrier including a dielectric portion and a conductive portion on a surface thereof, a regulation member, and an image carrier disposed so as to come into contact with the developer carrier. The developer carrier and the image carrier are rotationally driven such that a surface of the developer carrier and a surface of the image carrier move at linear velocities different from each other at a contact portion, and the developer remaining on the image carrier after the developer image is transferred from the image carrier, is collected by the developer carrier at the contact portion.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: July 21, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji An, Kazunari Hagiwara, Takuya Kitamura, Takashi Hiramatsu, Jun Miura
  • Patent number: 10696751
    Abstract: Provided are a solid preparation comprising an alkyl cellulose which provides excellent moldability and disintegrability even in a small amount of the alkyl cellulose, and a production method therefor. Specifically, provided are a solid preparation having an alkyl cellulose having a specific surface area by BET method of 0.5 to 10.0 m2/g and a dissolution start temperature of 5 to 27° C.; and a method for producing a solid preparation having the steps of: mixing a cellulose pulp and a first alkali metal hydroxide solution with stirring to obtain alkali cellulose, reacting the alkali cellulose with an alkylating agent to obtain a first reaction mixture, mixing the first reaction mixture and a second alkali metal hydroxide solution with stirring and without further addition of any alkylating agent to obtain a second reaction mixture, and pulverizing an alkyl cellulose isolated from the second reaction mixture to obtain an alkyl cellulose.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: June 30, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takuya Yokosawa, Naosuke Maruyama, Akira Kitamura
  • Publication number: 20200133161
    Abstract: A developing apparatus, includes: a developer bearing member configured to bear a developer; and a regulating member that is disposed in contact with a surface of the developer bearing member, and configured to regulate the developer borne on the developer bearing member. On the surface of the developer bearing member, a conductive portion having a first surface roughness and first electric resistance, and a dielectric portion having a second surface roughness, which is smaller than the first surface roughness, and second electric resistance, which is larger than the first electric resistance, are disposed. In a case where the developer borne on the developer bearing member is charged by friction with the regulating member, a charging polarity of the dielectric portion is the same polarity as a charging polarity of the developer.
    Type: Application
    Filed: October 23, 2019
    Publication date: April 30, 2020
    Inventors: Takuya Kitamura, Kenji Shindo, Kazunari Hagiwara, Takahiro Kawamoto, Ryo Sugiyama
  • Publication number: 20200077121
    Abstract: Aspects of the present disclosure provide an image processing device that includes circuitry configured to perform a decoding process on an encoded stream for generating an image. The encoded stream is arranged into largest coding units (LCUs), and filtering parameters applicable to each LCU are provided at a beginning portion of the corresponding LCU. The circuitry is further configured to perform adaptive offset filtering on portions of the image that correspond to the LCUs using the filtering parameters set at the beginning portions of the LCUs, respectively.
    Type: Application
    Filed: November 7, 2019
    Publication date: March 5, 2020
    Applicant: Sony Corporation
    Inventors: Hironari SAKURAI, Ohji NAKAGAMI, Takuya KITAMURA, Yoichi YAGASAKI
  • Patent number: 10567805
    Abstract: Aspects of the present disclosure provide an image processing device that includes circuitry configured to perform a decoding process on an encoded stream for generating an image. The encoded stream is arranged into largest coding units (LCUs), and filtering parameters applicable to each LCU are provided at a beginning portion of the corresponding LCU. The circuitry is further configured to perform adaptive offset filtering on portions of the image that correspond to the LCUs using the filtering parameters set at the beginning portions of the LCUs, respectively.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: February 18, 2020
    Assignee: SONY CORPORATION
    Inventors: Hironari Sakurai, Ohji Nakagami, Takuya Kitamura, Yoichi Yagasaki
  • Publication number: 20200050126
    Abstract: A process cartridge includes a developer carrier including a dielectric portion and a conductive portion on a surface thereof, a regulation member, and an image carrier disposed so as to come into contact with the developer carrier. The developer carrier and the image carrier are rotationally driven such that a surface of the developer carrier and a surface of the image carrier move at linear velocities different from each other at a contact portion, and the developer remaining on the image carrier after the developer image is transferred from the image carrier, is collected by the developer carrier at the contact portion.
    Type: Application
    Filed: August 7, 2019
    Publication date: February 13, 2020
    Inventors: Koji An, Kazunari Hagiwara, Takuya Kitamura, Takashi Hiramatsu, Jun Miura
  • Patent number: 10550202
    Abstract: There is provided is a hydroxyalkyl alkyl cellulose exhibiting good flowability and high compressibility. More specifically, provided are a hydroxyalkyl alkyl cellulose having a volume-based average particle diameter, determined by dry laser diffractometry, of 50 to 100 ?m, and having, on a basis of a dynamic image analysis to divide all particles into fine particles, spherical particles and fibrous particles, a volume fraction of the fibrous particles consisting of long and short fibrous particles relative to all of the particles of 45 to 70%, and a volume fraction of the fine particles relative to all of the particles of less than 2.0%; a solid preparation including the hydroxyalkyl alkyl cellulose; and others.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: February 4, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takuya Yokosawa, Taishi Kitaguchi, Yasuyuki Hirama, Akira Kitamura
  • Publication number: 20190390304
    Abstract: There are provided: an aluminum alloy magnetic disk substrate including: an aluminum alloy base material including an aluminum alloy containing 0.4 to 3.0 mass % (hereinafter, simply referred to as “%”) of Fe, 0.1 to 3.0% of Mn, 0.005 to 1.000% of Cu, and 0.005 to 1.000% of Zn, with the balance of Al and unavoidable impurities; and an electroless Ni—P plated layer formed on a surface of the aluminum alloy base material, in which the peak value (BLEI) of Fe emission intensity at an interface between the electroless Ni—P plated layer and the aluminum alloy base material, as determined by a glow discharge optical emission spectrometry device, is lower than Fe emission intensity (AlEI) in the interior of the aluminum alloy base material, as determined by the glow discharge optical emission spectrometry device; and a method for producing the aluminum alloy magnetic disk substrate.
    Type: Application
    Filed: January 30, 2018
    Publication date: December 26, 2019
    Inventors: Takuya MURATA, Kotaro KITAWAKI, Makoto YONEMITSU, Naoki KITAMURA, Takashi NAKAYAMA, Hideyuki HATAKEYAMA, Ryo SAKAMOTO, Sadayuki TODA
  • Patent number: 10444660
    Abstract: A developing apparatus includes a developer carrying member, a developer container, and a regulating member to regulate the thickness of the developer. The regulating member includes a support member having one end fixed to the developer container and the other end free, with the support member extending in a direction opposite to the rotating direction of the developer carrying member, and a contact member to be fixed to the other end of the support member and to contact the developer carrying member. The contact member includes a contact curved surface along a peripheral surface of the developer carrying member, and an opposite surface to face the developer carrying member. The contact pressure of the contact curved surface applied to the developer carrying member decreases as a location on the developer carrying member approaches a downstream side in the rotating direction.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: October 15, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kazunari Hagiwara, Takaaki Shinkawa, Koji An, Takashi Mukai, Takuya Kitamura
  • Patent number: 10437171
    Abstract: A regulating portion includes a first contact portion, a second contact portion, opposed surface portion, and a second opposed surface portion. When, in a plane orthogonal to the rotation axis direction of a developer bearing member, the fixed end and the free end of a supporting member are connected by an imaginary straight line, a contact position where the first contact portion contacts the developer bearing member is located on the downstream side, in the rotation direction of the developer bearing member, of a point of contact of a tangent line parallel to the imaginary straight line with the outer periphery of the developer bearing member.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: October 8, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Koji An, Kazunari Hagiwara, Takaaki Shinkawa, Takashi Mukai, Takuya Kitamura
  • Publication number: 20190284668
    Abstract: There are provided: an aluminum alloy substrate for a magnetic disk, including 2.0 to 10.0 mass % (hereinafter, simply referred to as “%”) of Mg, 0.003 to 0.150% of Cu, 0.05 to 0.60% of Zn, 0.03 to 1.00% of Mn, and 0.00001 to 0.00200% of Be, as well as Fe restricted to 0.50% or less, Si restricted to 0.50% or less, Cr restricted to 0.30% or less, and Cl restricted to 0.005% or less, with the balance of Al and unavoidable impurities; and a method of producing the aluminum alloy substrate for a magnetic disk.
    Type: Application
    Filed: October 27, 2017
    Publication date: September 19, 2019
    Inventors: Takuya MURATA, Kotaro KITAWAKI, Makoto YONEMITSU, Naoki KITAMURA, Yasuo FUJII, Tetsu SAKAI, Hideki TAKAHASHI, Takashi MORI
  • Publication number: 20190289286
    Abstract: The present disclosure relates to image processing apparatus and method intended to be capable of suppressing deterioration in image quality. [Solution] A predicated image is generated using inter-prediction and constrained intra-prediction, the inter-prediction using as a reference image an image of a past frame processed before a current frame, the constrained intra-prediction using no neighboring pixels subjected to inter-prediction, the image of the past frame being encoded, stored in a frame memory, read from the frame memory, and then decoded. The present disclosure is applicable to, in one example, an image processing apparatus, an image coding apparatus, or the like.
    Type: Application
    Filed: November 28, 2017
    Publication date: September 19, 2019
    Inventors: TAKUYA KITAMURA, NOBUO UEKI
  • Publication number: 20190278198
    Abstract: When a new development device is mounted, a control unit of an image forming apparatus identifies a development device type. When an identification result corresponds to a first development device containing a first amount of developer, an agitation member operates in a first mode. When the identification result corresponds to a second development device containing a second amount of developer higher than the first amount, the agitation member operates in a second mode. A second operation amount of the agitation member in the second mode is higher than a first operation amount of the agitation member in the first mode. A developer containing chamber of the development device is provided with a discharge opening from which the developer is discharged. The operations in the first and second modes are performed after a sealing member sealing the discharge opening is removed and also before a normal image forming process is executed.
    Type: Application
    Filed: March 7, 2019
    Publication date: September 12, 2019
    Inventors: Jun Miura, Takuya Kitamura, Kazunari Hagiwara, Takashi Hiramatsu, Koji An
  • Patent number: 10394162
    Abstract: A relation between a first thickness of a resin layer in an upstream portion of a contact nip in which the resin layer that covers a supporting member of a regulating blade makes contact with a developing roller and a second thickness of the resin layer in a downstream portion of the contact nip is set such that the second thickness is smaller than the first thickness. A potential difference having the same polarity as a toner charging polarity toward the supporting member is created between the supporting member and the developing roller.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: August 27, 2019
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Takashi Mukai, Kazunari Hagiwara, Koji An, Takaaki Shinkawa, Takuya Kitamura
  • Patent number: 10355374
    Abstract: A terminal fitting (1) includes a rectangular tube (11) with a bottom wall (12), two side walls (13A, 13B) rising from the bottom wall (12) and a ceiling wall (15) facing the bottom wall (12). The rectangular tube (11) includes a terminal insertion opening (17) on one end, and a tab (T) is insertable therein. A resilient contact piece (21) is arranged along the bottom wall (12) inside the rectangular tube (11). Two protection walls (31A, 31B) extend respectively from the side walls (13A, 13B) to close the terminal insertion opening (17), leaving a clearance for entrance of the tab (T) between the ceiling wall (15) and the protection walls. The protection walls (31A, 31B) have facing edges (35A, 35B) facing the mating protection walls (31B, 31A), and the facing edges (35A, 35B) extend obliquely with respect to a line (L) perpendicular to the bottom wall (12).
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: July 16, 2019
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Keishi Kitamura, Naotaka Tanikawa, Takuya Masumoto
  • Patent number: 10314786
    Abstract: Provided is a hydroxyalkyl alkyl cellulose exhibiting good flowability and high compressibility. More specifically, there are provided a hydroxyalkyl alkyl cellulose having a volume-based average particle size, determined by dry laser diffractometry, of more than 100 ?m and not more than 150 ?m; and after dividing all particles into fine particles, spherical particles and fibrous particles by a dynamic image analysis, a volume fraction of the fibrous particles relative to all of the particles of more than 40% and not more than 50%, and a volume fraction of the fine particles relative to all of the particles of less than 2.0%; a solid preparation including the hydroxyalkyl alkyl cellulose; and others.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: June 11, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Taishi Kitaguchi, Yasuyuki Hirama, Takuya Yokosawa, Akira Kitamura
  • Publication number: 20190172487
    Abstract: An aluminum alloy plate for a magnetic disc substrate according to the present disclosure includes, in mass %, Mg: 3.0 to 8.0%, Cu: 0.002 to 0.150%, Zn: 0.05 to 0.60%, Fe: 0.001 to 0.060%, Si: 0.001 to 0.060%, Be: 0.00001 to 0.00200%, Cr: 0.200% or less, Mn: 0.500% or less, and Cl: 0.00300% or less, with the balance being Al and inevitable impurities, and an abundance of a Cr oxide having a maximum diameter of 3 to 10 ?m observed in a metal structure is 1 or less per single side of a disc.
    Type: Application
    Filed: February 1, 2019
    Publication date: June 6, 2019
    Inventors: Kotaro KITAWAKI, Takuya MURATA, Akira HIBINO, Naoki KITAMURA, Hiroki OTA, Yasuo FUJII, Hideki TAKAHASHI, Takashi MORI
  • Publication number: 20190113861
    Abstract: A relation between a first thickness of a resin layer in an upstream portion of a contact nip in which the resin layer that covers a supporting member of a regulating blade makes contact with a developing roller and a second thickness of the resin layer in a downstream portion of the contact nip is set such that the second thickness is smaller than the first thickness. A potential difference having the same polarity as a toner charging polarity toward the supporting member is created between the supporting member and the developing roller.
    Type: Application
    Filed: October 5, 2018
    Publication date: April 18, 2019
    Inventors: Takashi Mukai, Kazunari Hagiwara, Koji An, Takaaki Shinkawa, Takuya Kitamura
  • Publication number: 20190113862
    Abstract: Provided is a developing apparatus including a developer carrying member, a developer container, and a regulating member to regulate the thickness of the developer. The regulating member includes a support member such that one end is fixed to the developer container, the other end is a free end, and the support member extends in a direction opposite to the rotating direction of the developer carrying member, and a contact member to be fixed to the other end of the support member and to contact the developer carrying member. The contact member includes a contact curved surface along a peripheral surface of the developer carrying member, and an opposite surface to face the developer carrying member. The contact pressure of the contact curved surface applied to the developer carrying member decreases as a location on the developer carrying member approaches downstream side in the rotating direction.
    Type: Application
    Filed: October 10, 2018
    Publication date: April 18, 2019
    Inventors: Kazunari Hagiwara, Takaaki Shinkawa, Koji An, Takashi Mukai, Takuya Kitamura
  • Publication number: 20190101847
    Abstract: A regulating portion includes a first contact portion, a second contact portion, opposed surface portion, and a second opposed surface portion. When, in a plane orthogonal to the rotation axis direction of a developer bearing member, the fixed end and the free end of a supporting member are connected by an imaginary straight line, a contact position where the first contact portion contacts the developer bearing member is located on the downstream side, in the rotation direction of the developer bearing member, of a point of contact of a tangent line parallel to the imaginary straight line with the outer periphery of the developer bearing member.
    Type: Application
    Filed: September 25, 2018
    Publication date: April 4, 2019
    Inventors: Koji An, Kazunari Hagiwara, Takaaki Shinkawa, Takashi Mukai, Takuya Kitamura