Patents by Inventor Masashi Takahashi

Masashi Takahashi 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: 7853188
    Abstract: A technology capable of suppressing the generation of transfer scattering of a toner image on an intermediate transfer body and contributing to an improvement in image quality in an image forming apparatus employing an intermediate transfer system is provided. An image forming apparatus is configured to include an intermediate transfer body to which a toner imager is transferred from an image carrier, the intermediate transfer body having an elastic surface layer having a center point average roughness of 0.1 times or more of a volume average particle size of a used toner and a ten-point average roughness of not more than the volume average particle size of the used toner; and a development section which develops an electrostatic latent image on the image carrier by using a toner having a shape factor SF-1 in the range of from 100 to 130 and a shape factor SF-2 in the range of from 100 to 140.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: December 14, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Takeshi Watanabe, Minoru Yoshida, Masashi Takahashi
  • Patent number: 7848680
    Abstract: There is provided a technique in which in a four-rotation intermediate transfer system image forming apparatus, even in a state where a large amount of transfer residual toner is generated, the occurrence of color mixture of toners can be effectively suppressed.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: December 7, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Masashi Takahashi, Minoru Yoshida, Takeshi Watanabe
  • Publication number: 20100301366
    Abstract: According to one embodiment, an organic EL device includes an insulating substrate, an organic EL element including a pixel electrode arranged in an active area above the insulating substrate, an organic layer arranged on the pixel electrode, and an opposed electrode arranged on the organic layer, a wiring arranged in a peripheral area outside the active area above the insulating substrate and electrically connected to the opposed electrode that extends from the active area to the peripheral area, and a conductive layer formed on the opposed electrode in a connection portion that connects the wiring and the opposed electrode.
    Type: Application
    Filed: May 25, 2010
    Publication date: December 2, 2010
    Inventor: Masashi TAKAHASHI
  • Publication number: 20100296839
    Abstract: There is provided an image forming apparatus in which occurrence of defective cleaning is prevented, replacement is easy, and occurrence of toner spillage can also be prevented. A cleaner unit of an image forming apparatus of the invention includes a cleaning member that is brought into contact with a toner bearing body in order to collect toner from the toner bearing body bearing the toner, a toner removal member to remove the toner from the cleaning member, and a waste toner storage part to store the removed toner, the cleaning member, the toner removal member and the waste toner storage part are integrally constructed into a unit structure, and the unit is constructed to be attachable to and detachable from the toner bearing body or a main body of the image forming apparatus.
    Type: Application
    Filed: August 9, 2010
    Publication date: November 25, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Takeshi Watanabe, Masashi Takahashi, Mitsuaki Kouyama
  • Publication number: 20100260509
    Abstract: There is provided a photoreceptor cleanerless image forming apparatus capable of decreasing color mixture or an exposure error due to reverse transfer toner or untransferred toner. An image forming apparatus 100 according to the present invention comprises four image forming units 100a, 100b, 100c, and 100d configured to be photoreceptor cleanerless in a 4-drum tandem manner. Each image forming unit includes a photoreceptor 103a, 103b, 103c, or 103d, a charger 105a, 105b, 105c, or 105d, an exposure apparatus 106a, 106b, 106c, or 106d, and a developing apparatus 109a, 109b, 109c, or 109d. When exposure intensities Iy, Ic, Im, and Ik are assumed for exposure sources of the exposure apparatuses in the image forming units which form yellow, magenta, cyan, and black images, respectively, the exposure intensities are configured to satisfy conditions of Ik?Ic?Im?Iy and Ik>Iy. This decreases an exposure error (image hysteresis) in an image formed on paper.
    Type: Application
    Filed: June 28, 2010
    Publication date: October 14, 2010
    Inventors: Shinji Aoki, Masashi Takahashi, Masashi Hiroki, Takeshi Watanabe
  • Patent number: 7811526
    Abstract: This invention provides a dripping nozzle device to produce ADU particles with good sphericity, a device for recovering a feedstock liquid to prepare a uniform feedstock liquid, a device for supplying a feedstock liquid to form drops with a uniform volume, a device for solidifying the surfaces of drops so that the drops will not deform easily when they fall onto and hit the surface of an aqueous ammonia solution, a device for circulating an aqueous ammonia solution so that the uranyl nitrate in the drops can be changed to ammonium diuranate completely, to such an extent that uranyl nitrate in the center of each drop is changed to ammonium diuranate, and an apparatus for producing ammonium diuranate particles with good sphericity. The dripping nozzle device is provided with a single vibrator to vibrate nozzles simultaneously. The device for recovering a feedstock liquid recovers the feedstock liquid remaining in the nozzles and mixes it with a fresh feedstock liquid.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: October 12, 2010
    Assignee: Nuclear Fuel Industries, Ltd.
    Inventors: Kazutoshi Okubo, Masashi Takahashi, Tomoo Takayama, Kazuhisa Nishimura, Masaki Honda
  • Publication number: 20100240212
    Abstract: A semiconductor device manufacturing method includes a process for filling holes in a dielectric film with tungsten. The process deposits tungsten in the holes, partially etches the deposited tungsten, and then deposits additional tungsten in the holes. Voids that may be left by the first tungsten deposition step are made accessible by openings formed in the etching step, and are then filled in by the second tungsten deposition step. Tungsten hexafluoride may be used as both a deposition source gas and an etching gas, providing a simple and inexpensive process that is suitable for high-volume production.
    Type: Application
    Filed: March 15, 2010
    Publication date: September 23, 2010
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventor: Masashi Takahashi
  • Patent number: 7796918
    Abstract: There is provided an image forming apparatus in which occurrence of defective cleaning is prevented, replacement is easy, and occurrence of toner spillage can also be prevented. A cleaner unit of an image forming apparatus of the invention includes a cleaning member that is brought into contact with a toner bearing body in order to collect toner from the toner bearing body bearing the toner, a toner removal member to remove the toner from the cleaning member, and a waste toner storage part to store the removed toner, the cleaning member, the toner removal member and the waste toner storage part are integrally constructed into a unit structure, and the unit is constructed to be attachable to and detachable from the toner bearing body or a main body of the image forming apparatus.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: September 14, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Takeshi Watanabe, Masashi Takahashi, Mitsuaki Kouyama
  • Publication number: 20100195912
    Abstract: An imaging device of the present invention comprises an imaging section for forming a subject image and outputting image data, a face detection section for detecting a person's face based on the image data, a decoration image selection section for selecting a decoration image from a plurality of decoration image data, in accordance with a face detected by the face detection section, and a first combining section for combining the selected decoration image and the face image. Also, an image composition and display device of the present invention comprises a storage section for storing image data, a decoration image selection section for selecting a decoration image from a plurality of decoration image data, in accordance with a face detected from image data, and a first combining section for combining the selected decoration image and the face image.
    Type: Application
    Filed: February 4, 2010
    Publication date: August 5, 2010
    Inventors: Naohisa Nakada, Akira Tani, Yuiko Uemura, Masashi Takahashi, Osamu Nonaka
  • Patent number: 7764297
    Abstract: There is provided a photoreceptor cleanerless image forming apparatus capable of decreasing color mixture or an exposure error due to reverse transfer toner or untransferred toner. An image forming apparatus 100 according to the present invention comprises four image forming units 100a, 100b, 100c, and 100d configured to be photoreceptor cleanerless in a 4-drum tandem manner. Each image forming unit includes a photoreceptor 103a, 103b, 103c, or 103d, a charger 105a, 105b, 105c, or 105d, an exposure apparatus 106a, 106b, 106c, or 106d, and a developing apparatus 109a, 109b, 109c, or 109d. When exposure intensities Iy, Ic, Im, and Ik are assumed for exposure sources of the exposure apparatuses in the image forming units which form yellow, magenta, cyan, and black images, respectively, the exposure intensities are configured to satisfy conditions of Ik?Ic?Im?Iy and Ik >Iy. This decreases an exposure error (image hysteresis) in an image formed on paper.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: July 27, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Shinji Aoki, Masashi Takahashi, Masashi Hiroki, Takeshi Watanabe
  • Publication number: 20100166548
    Abstract: A steam turbine blade includes a coating film formed at least a portion of a surface of the steam turbine blade, the coating film containing a ceramic matrix and nanosheet particles dispersed in the ceramic matrix. The steam turbine blade is employed as one of stator blades or one of rotor blades in a steam turbine. The steam turbine includes a turbine rotor, the rotor blades implanted in the turbine rotor, the stator blades provided in an upstream side of the corresponding rotor blades, and a turbine casing supporting the stator blades and accommodating turbine rotor, the rotor blades and the stator blades. The steam turbine is also configured such that the rotor blades are paired with the corresponding stator blades to form turbine stages arranged in an axial direction of the turbine rotor, thereby forming steam paths.
    Type: Application
    Filed: December 17, 2009
    Publication date: July 1, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Akio SAYANO, Masashi Takahashi, Masahiro Saito, Kazuyoshi Nakajima, Jianshun Huang, Kazuhiko Mori
  • Patent number: 7727612
    Abstract: An automotive vehicle floor mat M to be laid on a foot space of a driver's seat, characterized in that retainer holes to be retained at retainer pins implanted on a vehicle floor side, are provided at two positions at a predetermined interval near a rear edge portion of the mat, a first retainer hole of the two position retainer holes is provided on a right rear side of the mat and in the vicinity of a rear extension portion of an accelerator pedal, a second retainer hole is provided on a rear extension portion of a brake pedal and rather on a center side of the mat than the first retainer hole, a retainer member having a rigidity is provided on an inner edge of each retainer hole, and a thickness of the retainer member is smaller than a height of the retainer pins.
    Type: Grant
    Filed: September 3, 2001
    Date of Patent: June 1, 2010
    Assignee: Honda Access Corp.
    Inventors: Hirotaka Haraguchi, Hinako Tamagawa, Toshihide Matsuoka, Masashi Takahashi
  • Publication number: 20100128792
    Abstract: A method of decoding videos comprises the steps of performing, in respect of a decoding objective area of decoding objective frame, a motion search by using images of plural frames finished with decoding and deciding, on the basis of the result of the motion search, whether an image of the decoding objective area is to be generated through an interpolation process or a decoded image is to be generated through motion compensation using data included in an encoding stream.
    Type: Application
    Filed: November 18, 2009
    Publication date: May 27, 2010
    Applicant: HITACHI CONSUMER ELECTRONICS CO., LTD.
    Inventors: Shohei SAITO, Masashi TAKAHASHI, Muneaki YAMAGUCHI, Hiroaki ITO, Koichi HAMADA
  • Patent number: 7715758
    Abstract: An apparatus and method for cleaning a plurality of drums in an image forming apparatus includes applying a first bias to each of a plurality of disturbing members, each disturbing member associated with a corresponding drum of a plurality of drums. While performing an image forming operation wherein at least one of the plurality of drums is not use, the bias is changed of a disturbing member corresponding to at least one of the plurality of drums not used in performing the image forming operation from the first bias to a second bias different from the first bias.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: May 11, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Takeshi Watanabe, Masashi Takahashi, Minoru Yoshida
  • Patent number: 7711217
    Abstract: An active sensor 10 is positioned on an outside of a pipe 60 so as to detect a thickness of the pipe. The active sensor comprises: an oscillator 15 capable of inputting oscillatory waves into the pipe and sweeping a frequency of the oscillatory waves within a desired range; and an optical fiber sensor mounted on the pipe, the optical fiber sensor detecting the oscillatory waves generated in the pipe.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: May 4, 2010
    Assignees: Kabushiki Kaisha Toshiba, Lazoc Incorporated
    Inventors: Masashi Takahashi, Keiichi Sasaki, Nobuo Yamaga, Norio Ahiko, Koichi Yoshimura, Masanobu Ohi, Yoshio Mochida, Yuuichi Machijima, Takehiro Shirai
  • Patent number: 7711113
    Abstract: An ID-based encryption and signature technique, according to which more efficient and higher speed processing is possible. In generation of public parameters, an element P of a group G1 of order q is selected, and then, g=e(P, P) calculated in advance is added to the public parameters. At the time of encryption and verification, a public key ID is associated with an element PID of the group G1, using u?Zq* and two elements P1 and P2 (included in the public parameters) of G1 and calculating PID=P1+uP2. The above-mentioned elements P1 and P2 are determined by P1=s1P and P2=s2P using random numbers s1, s2?Zq* as a part of a master key, and a private key of a user is determined by dID=(s1+us2)?1P.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: May 4, 2010
    Assignee: Hitachi, Ltd.
    Inventor: Masashi Takahashi
  • Patent number: 7650086
    Abstract: There is provided a technique in which when an image forming processing with toners of plural colors is performed, a residual toner on a transfer-receiving member to which toner images are transferred by plural image forming units is not discarded, but is reused as a black toner, and a deterioration in picture quality due to a change in color tone of the black toner is prevented.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: January 19, 2010
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Masashi Takahashi, Minoru Yoshida, Takeshi Watanabe
  • Publication number: 20100008690
    Abstract: It is an object of the invention to provide an image forming apparatus in which the quality of output images is improved by defining the relation between a measured value of an adhesion of toner and a physical property value of an intermediate belt and related technologies thereof. In an image forming apparatus which transfers a toner image formed on a photoconductive member primarily onto the intermediate transfer belt and then transfers the same secondarily onto an image bearing medium, a relation; 40<F×R×L<1×104 (N?cm2), where F(N) is an average adhesion between the intermediate transfer belt and toner, R(?cm) is a resistivity, and L(cm) is a thickness of the intermediate transfer belt is satisfied.
    Type: Application
    Filed: July 8, 2009
    Publication date: January 14, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Masashi Takahashi, Minoru Yoshida, Takeshi Watanabe
  • Publication number: 20090325124
    Abstract: To provide a fixture mount fixing tool for preventing damage of a fixture in the storage container, when a fixture mount and the fixture are engaged, the fixture mount fixing tool includes a top part (2) having a bolt insertion through-hole (1) and a droop part (3) drooped therefrom, the bolt insertion through-hole (1) includes an engagement hole (4) engaged with a regular polygonal-shaped part (Zb) formed on an end part outer face of the fixture mount (Z), and/or the droop part (3) includes engagement faces contacted with plane parts on an outer face of the fixture mount (Z),and the droop part (3) includes a locking part (3b) locked with a container holding hole of a base table for holding the storage container (Y) or a locking part (3b) locked with engagement part formed on the side face of the container (Y).
    Type: Application
    Filed: June 30, 2009
    Publication date: December 31, 2009
    Applicant: GC Corporation
    Inventors: Naoto Fujii, Masashi Takahashi
  • Patent number: D616548
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: May 25, 2010
    Assignee: GC Corporation
    Inventors: Nassib Fares, Joseph F. Saade, Ryosuke Ikeya, Shinichiro Hanada, Masashi Takahashi