Patents by Inventor Takayuki Kato

Takayuki Kato 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).

  • Ceramics hollow particles, composite material containing ceramics hollow particles and sliding member
    Publication number: 20060188720
    Abstract: The present invention provides (1) hollow ceramics particles having a hollow structure formed by a porous shell layer comprising ceramics powders bonded to each other and having an average particle diameter of from 10 to 100 ?m and a breaking strength of 5×104 MPa or more, (2) a hollow ceramics particles-containing composite material comprising hollow ceramics particles dispersed in a matrix which hollow ceramics particles formed by a porous shell layer comprising ceramics powders bonded to each other, wherein the aforementioned hollow ceramics particles are hollow particles obtained by sintering a precursor comprising the aforementioned ceramics powder covered by a resin powder in such an arrangement that a part of the aforementioned ceramics powder is embedded in the resin powder, and (3) a sliding member made of the aforementioned a hollow ceramics particles-containing composite material.
    Type: Application
    Filed: March 18, 2004
    Publication date: August 24, 2006
    Inventors: Takayuki Kato, Makoto Egashira, Yashiro Shimizu, Takeo Hyodo
  • Object lens and endoscope using it
    Patent number: 7085064
    Abstract: An objective lens includes, in order from the object side, a first lens (L1) with negative power, a second lens (L2) with positive power, an aperture stop (AS), and a third lens (L3) with positive power. A lens component located on the image side of the aperture stop (AS) is constructed with a positive single lens or a plurality of positive single lenses, and the objective lens satisfies the following conditions: 45<vd1?vd2 ?0.6<f1/f2<?0.3 where vd1 is the Abbe's number of the first lens, vd2 is the Abbe's number of the second lens, f1 is the focal length of the first lens, and f2 is the focal length of the second lens.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: August 1, 2006
    Assignee: Olympus Corporation
    Inventors: Tsutomu Uzawa, Ken Kasai, Takayuki Kato
  • Recycling method and image forming apparatus manufactured using recycling method
    Patent number: 7082660
    Abstract: A recycling method of an apparatus having a part includes a collecting step of collecting a part from the apparatus; a processing step of processing the collected part to adapt it to an apparatus having different specifications; and a mounting step of mounting the part processed in the processing step on the apparatus.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: August 1, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Kato, Yasuyoshi Yamamoto, Masahiro Funakoshi, Masaaki Saito, Ikuo Takeuchi, Shinsuke Ubayashi, Naoya Kikkawa, Akihiro Shimizu, Hideaki Miyazawa
  • Inkjet recording apparatus
    Patent number: 7052126
    Abstract: An inkjet recording apparatus for providing a high-quality image wherein a recording medium is thoroughly sucked by a conveyance belt and is accurately conveyed, thereby saving much time and effort. A conveyance belt 7 for supporting and conveying a recording medium 4 is provided, and an electrostatic generator 10 is installed to generate electrostatic force for sucking the recording medium 4 and to supply electrostatic force to the conveyance belt 7, wherein the conveyance belt 7 is designed in such a way that at least the recording medium contact surface is adhesive.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: May 30, 2006
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Keiichiro Suzuki, Takayuki Kato, Taku Mitsuhashi
  • Inkjet printer
    Publication number: 20060092211
    Abstract: An inkjet printer having: recording head 1 including a plurality of nozzles; defective nozzle detection means 8 for detecting a defective nozzle from which ink droplets are not ejected for each of the of aforesaid recording head 1; a determination means for determining a level of a defective nozzle occurrence situation that is detected by aforesaid defective nozzle detection means 8; and an operation control means for controlling the execution of operations of a printer based on the determination result in aforesaid determination means.
    Type: Application
    Filed: October 17, 2005
    Publication date: May 4, 2006
    Inventors: Hiroaki Arakawa, Takayuki Kato
  • Inkjet printer
    Publication number: 20060082605
    Abstract: An inkjet printer, including a recording head having a nozzle to jet ink droplets, a control section to control jetting of the ink droplets from the nozzle of the recording head at predetermined driving conditions for jetting the ink droplets, a velocity detecting section to detect ink droplets jetting velocity from the nozzle of the recording head, a temperature detecting section to detect temperature of the recording head or ambient temperature of the recording head, a first changing section to change the driving conditions to alter the ink droplets jetting velocity to a targeted velocity based on detected results of the velocity detecting section, and a second changing section to change the driving conditions at a time differing from a time of the first changing section to alter the ink droplets jetting velocity to the targeted velocity based on the detected results of the temperature detecting section.
    Type: Application
    Filed: October 14, 2005
    Publication date: April 20, 2006
    Inventors: Hiroaki Arakawa, Takayuki Kato, Shingo Tsubotani
  • Radio receiver and radio receiving method
    Publication number: 20060068735
    Abstract: A radio receiver comprises an LNA which amplifies An RF signal, a quadrature demodulator which directly demodulates the amplified RF signal into a B/B signal, using a LO signal, a VGA which amplifies the B/B signal, a DC offset canceller which executes feedback control on the amplified B/B signal, and a gain controller which controls at least the gain of the LNA, the gain controller including a signal intensity detector which detects the intensity of the amplified B/B signal, a gain selector which selects a desired one of preset gains on the basis of the detected intensity, a timing controller which controls timing of switching to the selected desired gain, and a gain control signal generator which changes, in accordance with the controlled timing, the interval at which an LNA gain control signal is generated.
    Type: Application
    Filed: November 17, 2005
    Publication date: March 30, 2006
    Inventors: Takehiko Toyoda, Hiroshi Yoshida, Takayuki Kato
  • Radio receiver and radio receiving method
    Publication number: 20060068734
    Abstract: A radio receiver comprises an LNA which amplifies An RF signal, a quadrature demodulator which directly demodulates the amplified RF signal into a B/B signal, using a LO signal, a VGA which amplifies the B/B signal, a DC offset canceller which executes feedback control on the amplified B/B signal, and a gain controller which controls at least the gain of the LNA, the gain controller including a signal intensity detector which detects the intensity of the amplified B/B signal, a gain selector which selects a desired one of preset gains on the basis of the detected intensity, a timing controller which controls timing of switching to the selected desired gain, and a gain control signal generator which changes, in accordance with the controlled timing, the interval at which an LNA gain control signal is generated.
    Type: Application
    Filed: November 17, 2005
    Publication date: March 30, 2006
    Inventors: Takehiko Toyoda, Hiroshi Yoshida, Takayuki Kato
  • Foot depressing parking brake apparatus
    Publication number: 20060053952
    Abstract: A foot depressing parking brake apparatus including a brake pedal main body 3 pivotably supported by a support shaft 2, a ratchet plate 4 having ratchet teeth 4b and attached to the brake pedal main body 3, a ratchet pole 6 rotatably attached to a pivot pin 5 and constituting a shaft hole inserted with the pivot pin 5 by a long hole 7, and a toggle spring 10 for exerting a turning force to the ratchet pole 6, wherein a brake operating state in which a claw portion 6a of the ratchet pole 6 is brought in mesh with the ratchet teeth 4b of the ratchet plate 4 and a brake releasing state in which the meshing is released are realized.
    Type: Application
    Filed: August 10, 2005
    Publication date: March 16, 2006
    Inventors: Shinji Fujioka, Masateru Momozu, Takayuki Kato
  • Apparatus for producing a composite material including ceramic hollow particles and aluminum or aluminum alloy and method for producing the composite material the same
    Patent number: 7011135
    Abstract: An apparatus 1 for producing a composite material including ceramic hollow particles and one of aluminum and aluminum alloy pressurizes a gas feeding member 20, a molten stock vessel 30, a packing 50, a forming mold 60 and an air-removal ceramic filter 80 by means of an upper pressure die 11 and a lower pressure die 12 and introduces an Ar gas thereby allowing molten aluminum 40 or molten aluminum alloy 40 to infiltrate in gaps between the plural ceramic hollow particles.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: March 14, 2006
    Assignee: Yazaki Corporation
    Inventors: Takayuki Kato, Hiroshi Suzuki
  • Recycling method using a modified part and image forming apparatus manufactured using the recycling method
    Patent number: 6983113
    Abstract: A recycling method in an apparatus having a part includes a part removal step of removing a part from the apparatus, and a mounting step of mounting to the apparatus a part having a specification different from that of the removed part.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: January 3, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasuyoshi Yamamoto, Masahiro Funakoshi, Masaaki Saito, Ikuo Takeuchi, Shinsuke Ubayashi, Takayuki Kato, Naoya Kikkawa, Akihiro Shimizu, Hideaki Miyazawa
  • Recycling method, and image forming apparatus manufactured using recycling method
    Publication number: 20050249520
    Abstract: A recycling method in an apparatus having a part includes a part removal step of removing a part from the apparatus, and a mounting step of mounting to the apparatus a part having a specification different from that of the removed part.
    Type: Application
    Filed: July 15, 2005
    Publication date: November 10, 2005
    Applicant: Canon Kabushiki Kaisha
    Inventors: Yasuyoshi Yamamoto, Masahiro Funakoshi, Masaaki Saito, Ikuo Takeuchi, Shinsuke Ubayashi, Takayuki Kato, Naoya Kikkawa, Akihiro Shimizu, Hideaki Miyazawa
  • Producing method for zirconia hollow particles
    Publication number: 20050238570
    Abstract: A producing method for producing zirconia hollow particles in which a zirconia powder mutually combines to form a porous shell layer thereby constructing a hollow structure, the method being characterized in mixing under a pressurized contact a resin powder and a zirconia powder of a grain size smaller than that of the resin powder, thereby forming a precursor by covering a surface of the resin powder with the zirconia powder in a partially embedded state, and calcining the precursor to expel the resin powder and to mutually sinter the zirconia powder.
    Type: Application
    Filed: March 21, 2005
    Publication date: October 27, 2005
    Inventors: Takayuki Kato, Makoto Egashira, Yasuhiro Shimizu, Takeo Hyodo, Miyuki Fukunaga
  • Object lens and endoscope using it
    Publication number: 20050225872
    Abstract: An objective lens includes, in order from the object side, a first lens (L1) with negative power, a second lens (L2) with positive power, an aperture stop (AS), and a third lens (L3) with positive power. A lens component located on the image side of the aperture stop (AS) is constructed with a positive single lens or a plurality of positive single lenses, and the objective lens satisfies the following conditions: 45<vd1?vd2 ?0.6<f1/f2<?0.3 where vd1 is the Abbe's number of the first lens, vd2 is the Abbe's number of the second lens, f1 is the focal length of the first lens, and f2 is the focal length of the second lens.
    Type: Application
    Filed: May 14, 2004
    Publication date: October 13, 2005
    Inventors: Tsutomu Uzawa, Ken Kasai, Takayuki Kato
  • Developer supply apparatus and developer supply container
    Patent number: 6952549
    Abstract: A developer supply apparatus includes a holding member for detachably holding a developer supply container having a developer discharge opening and a sealing member for sealing the developer discharge opening; a rotatable member rotatably supported on the holding member; a converting mechanism, provided at a connecting portion between the rotatable member and the holding member, for converting a rotation of the rotatable member to a sliding operation of the holding member; wherein the sealing member moves from a closing position to an opening position by the sliding operation.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: October 4, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Kato, Akihiro Shimizu
  • Developer supply apparatus and developer supply container
    Publication number: 20050191094
    Abstract: A developer supply apparatus includes a holding member for detachably holding a developer supply container having a developer discharge opening and a sealing member for sealing the developer discharge opening; a rotatable member rotatably supported on the holding member; a converting mechanism, provided at a connecting portion between the rotatable member and the holding member, for converting a rotation of the rotatable member to a sliding operation of the holding member; wherein the sealing member moves from a closing position to an opening position by the sliding operation.
    Type: Application
    Filed: April 27, 2005
    Publication date: September 1, 2005
    Applicant: Canon Kabushiki Kaisha
    Inventors: Takayuki Kato, Akihiro Shimizu
  • Inkjet recording apparatus
    Publication number: 20050068399
    Abstract: An inkjet recording apparatus for providing a high-quality image wherein a recording medium is thoroughly sucked by a conveyance belt and is accurately conveyed, thereby saving much time and effort. A conveyance belt 7 for supporting and conveying a recording medium 4 is provided, and an electrostatic generator 10 is installed to generate electrostatic force for sucking the recording medium 4 and to supply electrostatic force to the conveyance belt 7, wherein the conveyance belt 7 is designed in such a way that at least the recording medium contact surface is adhesive.
    Type: Application
    Filed: September 15, 2004
    Publication date: March 31, 2005
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Keiichiro Suzuki, Takayuki Kato, Taku Mitsuhashi
  • Method for producing ferrite hollow particles
    Publication number: 20050006826
    Abstract: A method for producing ferrite hollow particles having a hollow structure formed by mutual sintering of ferrite powder, including: a) a step of mixing a resin powder and a ferrite powder of a particle size smaller than that of the resin powder under an under compaction thereby forming ferrite powder-coated particles in which ferrite powder coats, in a partially embedded state, surface of the resin powder; and b) a step of heat treating the obtained ferrite powder-coated particles thereby removing the resin powder and mutually sintering the ferrite powder.
    Type: Application
    Filed: July 7, 2004
    Publication date: January 13, 2005
    Inventor: Takayuki Kato
  • Method of producing hollow alumina particle
    Publication number: 20040265221
    Abstract: A method of producing hollow alumina particles capable of controlling the grain size of hollow alumina particles and providing high formation ratio of hollow particles while suppressing the formation of solid particles, the method comprising irradiating supersonic waves to an aqueous solution containing aluminum nitrate or aluminum acetate, and a surfactant or an organic acid to generate micro-liquid droplets in an atomized state, introducing the generated micro-liquid droplets only for the portion of minute liquid droplets having a certain grain size or less by an air stream and burning them in air.
    Type: Application
    Filed: April 19, 2004
    Publication date: December 30, 2004
    Applicant: YAZAKI CORPORATION
    Inventors: Takayuki Kato, Tomohiro Taniguchi, Makoto Egashira, Yasuhiro Shimizu, Takeo Hyodo, Kazutaka Kamitani
  • Apparatus for producing a composite material including ceramic hollow particles and aluminum or aluminum alloy and method for producing the composite material the same
    Publication number: 20040238148
    Abstract: An apparatus 1 for producing a composite material including ceramic hollow particles and one of aluminum and aluminum alloy pressurizes a gas feeding member 20, a molten stock vessel 30, a packing 50, a forming mold 60 and an air-removal ceramic filter 80 by means of an upper pressure die 11 and a lower pressure die 12 and introduces an Ar gas thereby allowing molten aluminum 40 or molten aluminum alloy 40 to infiltrate in gaps between the plural ceramic hollow particles.
    Type: Application
    Filed: March 19, 2004
    Publication date: December 2, 2004
    Applicant: YAZAKI CORPORATION
    Inventors: Takayuki Kato, Hiroshi Suzuki