Patents by Inventor Yukio Watanabe

Yukio Watanabe 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).

  • Publication number: 20070025228
    Abstract: There is provided an optical pickup apparatus that can obtain a stable servo signal by reducing stray light generated by diffraction in a recording layer other than a recording layer on which light is condensed. A hologram element provided in an optical pickup apparatus for recording information onto a recording medium and/or reproducing information on the recording medium by use of light includes fourth and fifth divisions where at least first-order diffracted light among diffracted light beams obtained by reflection and diffraction on a recording layer other than a light-condensed recording layer on which light is condensed by an objective lens so as not to be directed toward first and second light-receiving elements for detecting focus position information and third to eighth light-receiving elements for detecting track position information.
    Type: Application
    Filed: July 31, 2006
    Publication date: February 1, 2007
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kazunori Matsubara, Shinzoh Murakami, Tetsuo Ueyama, Kazuhiro Tsuchida, Yukio Watanabe, Osamu Miyazaki
  • Publication number: 20070022277
    Abstract: Systems and methods for modes of operation for processing data are disclosed. While executing a program in one mode the hazard checking logic present in the microprocessor system may be utilized to check or ameliorate the hazards caused by the execution of this program. However, when a program does not need this hazard checking, the microprocessor may execute this program in a mode where some portion of the hazard checking logic of the microprocessor may not be utilized in conjunction with the execution of this program. This allows the higher speed execution of these types of programs by eliminating checking for dependencies, the detection of false load/store dependencies, the insertion of unnecessary stalls into the execution pipeline of the microprocessor or other hardware operations. Furthermore, by reducing the use of hazard detection logic a decrease in power consumption may also be effectuated.
    Type: Application
    Filed: July 20, 2005
    Publication date: January 25, 2007
    Inventors: Kenji Iwamura, Takeki Osanai, Yukio Watanabe
  • Publication number: 20060269690
    Abstract: A method for forming a low dielectric constant film includes the steps of: introducing reaction gas comprising an organo Si gas and an inert gas into a reactor of a capacitively-coupled CVD apparatus; adjusting a size of fine particles being generated in the vapor phase to a nanometer order size as a function of a plasma discharge period inside the reactor; and depositing fine particles generated on a substrate being placed between upper and lower electrodes inside the reactor while controlling a temperature gradient between the substrate and the upper electrode at about 100° C./cm or less.
    Type: Application
    Filed: May 27, 2005
    Publication date: November 30, 2006
    Applicants: ASM JAPAN K.K., Kyushu University, National University Corporation
    Inventors: Yukio Watanabe, Masaharu Shiratani, Kazunori Koga, Shota Nunomura, Shingo Ikeda, Nobuo Matsuki, Atsuki Fukazawa
  • Patent number: 7122446
    Abstract: Part of light emitted downward by an active layer is reflected by an electrode functioning as a reflective layer, and travels upward to radiate outside. Since the electrode is made of a metal, it reflects almost all light regardless of its incident angle, and light can be efficiently extracted.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: October 17, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koichi Nitta, Haruhiko Okazaki, Yukio Watanabe, Chisato Furukawa
  • Publication number: 20060105583
    Abstract: A method for forming a low dielectric constant film includes the steps of: introducing reaction gas comprising an organo Si gas and an inert gas into a reactor of a capacitively-coupled CVD apparatus; adjusting a size of fine particles being generated in the vapor phase to a nanometer order size as a function of a plasma discharge period inside the reactor; and depositing fine particles generated on a substrate being placed inside the reactor.
    Type: Application
    Filed: November 17, 2004
    Publication date: May 18, 2006
    Applicants: ASM JAPAN K.K., Kyushu University, National University Corporation
    Inventors: Shingo Ikeda, Nobuo Matsuki, Yoshinori Morisada, Yukio Watanabe, Masaharu Shiratani, Kazunori Koga, Shota Nunomura
  • Patent number: 7042448
    Abstract: The present invention provides an image processing unit, an image processing system, and an image processing method capable of achieving a higher speed and a higher efficiency in a rendering and implementing a low cost of the system. The image processing unit according to the present invention comprises a main storing portion for storing information of three-dimensional objects, a plurality of calculating portions for processing images based on three-dimensional object information which are read from the main storing portion, and a hierarchical storing portion having a plurality of hierarchies and connected between the main storing portion and the plurality of calculating portions to store a part of information at a lower level into a higher level sequentially, wherein image processing by the plurality of calculating portions are performed in parallel.
    Type: Grant
    Filed: March 17, 2003
    Date of Patent: May 9, 2006
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Atsushi Kunimatsu, Kiyoji Ueno, Hideki Yasukawa, Yukio Watanabe, Takayuki Kamei, Takanao Amatsubo
  • Publication number: 20060020771
    Abstract: In a multiprocessor system of a hierarchy configuration as a parallel computer of a common-bus structure, a processing unit (120) in an intermediate stage has a processor (123) having a programmable function that is equal to a normal processor, an instruction memory (125), and a data memory (127). The processing unit (120) receives a status signal from a lower processor (143), and a DMA controller (151) having a memory for the transfer of large sized data performs compression, decompression, programmable load dispersion, and load dispersion according to the state of operation of each lower processor.
    Type: Application
    Filed: September 26, 2005
    Publication date: January 26, 2006
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Atsushi Kunimatsu, Yukio Watanabe, Hideki Yasukawa
  • Publication number: 20050255615
    Abstract: A high-luminance light emitting element is manufactured by a method comprising: forming a light emitting layer on a first surface of a GaP substrate including the first surface and a second surface opposed to the first surface and having an area smaller than the first area, the light emitting layer emitting light of a wavelength ? permitted to pass through the GaP substrate; forming a plurality of side surfaces on the GaP substrate to be respectively aslant by substantially the same angle to become narrower toward the second surface; and forming a plurality of depressions and protrusions as high as 0.1? to 3? on the side surfaces.
    Type: Application
    Filed: July 22, 2005
    Publication date: November 17, 2005
    Inventors: Hideto Sugawara, Yukio Watanabe, Hirohisa Abe, Kuniaki Konno
  • Patent number: 6956241
    Abstract: A high-luminance light emitting element is manufactured by a method comprising: forming a light emitting layer on a first surface of a GaP substrate including the first surface and a second surface opposed to the first surface and having an area smaller than the first area, the light emitting layer emitting light of a wavelength ? permitted to pass through the GaP substrate; forming a plurality of side surfaces on the GaP substrate to be respectively aslant by substantially the same angle to become narrower toward the second surface; and forming a plurality of depressions and protrusions as high as 0.1 ? to 3 ? on the side surfaces.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: October 18, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hideto Sugawara, Yukio Watanabe, Hirohisa Abe, Kuniaki Konno
  • Patent number: 6938149
    Abstract: A renaming apparatus configured to set a correspondence between a physical register number and a logical register number. The apparatus includes a control register configured to store the correspondence between the physical register number and the logical register number and a control register setting part configured to set the control register in accordance with the content of an instruction, when an instruction for setting the correspondence between the physical register number and the logical register number is included in the issued string of instructions.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: August 30, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Atsushi Kunimatsu, Yukio Watanabe
  • Publication number: 20050180293
    Abstract: An optical pickup converts a laser beam from a semiconductor laser (1) into a parallel ray with a collimator lens (2), and divides it into a main beam (30), a sub-beam (+1st order component) (31), and a sub-beam (?1st order component) (32) with a gradient multiple-division type phase difference grating (3). After passing through a beam splitter (4), an objective lens (5) condenses the light beams on a track (61) of an optical disc (6), and the reflected light that has passed through the objective lens 5 is reflected at the beam splitter (4) and is guided into optical detectors (8A, 8B, and 8C) by a condensing lens (7). Accordingly, in a tracking error signal detecting method using the push-pull signals of the main beam and sub-beams, an offset produced by an objective lens shift or a disc tilt can be cancelled at low cost without lowering the efficiency of using light.
    Type: Application
    Filed: April 18, 2003
    Publication date: August 18, 2005
    Inventors: Tetsuo Ueyama, Keiji Sakai, Renzaburou Miki, Osamu Miyazaki, Yukio Watanabe
  • Publication number: 20050147765
    Abstract: A method for producing particles having a monocrystalline diamond structure, comprises the steps of operating a plasma chamber (100) containing a reaction gas with at least one carbon compound and generating a reactive plasma, providing seed particles in said plasma chamber (100) which are arranged under the influence of external gravity compensating forces within the reactive plasma, and polydirectional growing carbon with diamond structure on said seed particles, so that growing diamond containing particles are formed.
    Type: Application
    Filed: November 22, 2002
    Publication date: July 7, 2005
    Inventors: Volker Dose, Gregor Morfill, Vladimir Fortov, Noriyoshi Sato, Yukio Watanabe
  • Publication number: 20050035362
    Abstract: Part of light emitted downward by an active layer is reflected by an electrode functioning as a reflective layer, and travels upward to radiate outside. Since the electrode is made of a metal, it reflects almost all light regardless of its incident angle, and light can be efficiently extracted.
    Type: Application
    Filed: July 20, 2004
    Publication date: February 17, 2005
    Inventors: Koichi Nitta, Haruhiko Okazaki, Yukio Watanabe, Chisato Furukawa
  • Patent number: 6846686
    Abstract: A semiconductor light-emitting device, including a first substrate of a first conductivity type, a first bonding layer provided on the first substrate and consisting essentially of a GaP material of the first conductivity type, a second bonding layer provided on the first bonding layer, coincident with the first bonding layer in the planar direction of the crystal, having the first conductivity type, and consisting essentially of a material represented by a formula InxGayP, where 0?x, y?1, and x+y=1, and a light-emitting layer comprising a first cladding layer, an active layer, and a second cladding layer, which are successively provided on the second bonding layer, each of the active layer and first and second cladding layers consisting essentially of a material represented by a formula InxGayAlzP, where x+y+z=1, and 0?x, y, z?1.
    Type: Grant
    Filed: May 5, 2003
    Date of Patent: January 25, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ryo Saeki, Hideto Sugawara, Yukio Watanabe, Tamotsu Jitosho
  • Publication number: 20050003034
    Abstract: A stiffness-taper tubing and a manufacturing method and apparatus for such, in which the bonding strength in a transition section between resins having different stiffness is increased, where the length of the transition section is shortened and operability is improved, and where the volume of residual resin when switching resins is reduced as well as the degradation of the quality of residual resin due to heating is suppressed. An apparatus for manufacturing stiffness-taper tubing may include a mandrel having a mixing portion, which is tapered and has projections formed thereon.
    Type: Application
    Filed: August 3, 2004
    Publication date: January 6, 2005
    Inventors: Yukio Watanabe, Takeshi Kizuka
  • Publication number: 20040252620
    Abstract: Regional borderlines that are the borderlines between the first region and the second region on a diffraction grating of an optical pickup partially overlap a group of y-axis parallel borderlines that are borderlines between pattern A and pattern B that are parallel to a direction parallel to the y-axis.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 16, 2004
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yukio Watanabe, Tetsuo Ueyama
  • Patent number: 6809345
    Abstract: A semiconductor light emitting element and a semiconductor light emitting device, which are high in optical output, uniform in emission of light and high in production yield and productivity, comprise: an electrically conductive transparent substrate having a first surface and a second surface opposed to each other; a semiconductor epitaxial layer formed on a location of the first surface of the substrate; a first electrode formed on the semiconductor epitaxial layer; a second electrode formed on a location of the second surface of the substrate offset from alignment with the first electrode; and a groove formed to indent from the second surface of the substrate toward the first surface in a location between the first electrode and the second electrode.
    Type: Grant
    Filed: June 20, 2003
    Date of Patent: October 26, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Yukio Watanabe
  • Patent number: 6809734
    Abstract: A computer architecture and programming model for high speed processing over broadband networks are provided. The architecture employs a consistent modular structure, a common computing module and uniform software cells. The common computing module includes a control processor, a plurality of processing units, a plurality of local memories from which the processing units process programs, a direct memory access controller and a shared main memory. A synchronized system and method for the coordinated reading and writing of data to and from the shared main memory by the processing units also are provided. A hardware sandbox structure is provided for security against the corruption of data among the programs being processed by the processing units. The uniform software cells contain both data and applications and are structured for processing by any of the processors of the network. Each software cell is uniquely identified on the network.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: October 26, 2004
    Assignees: Sony Computer Entertainment Inc., Kabushiki Kaisha Toshiba, International Business Machines Corporation
    Inventors: Masakazu Suzuoki, Takeshi Yamazaki, Charles Ray Johns, Shigehiro Asano, Atsushi Kunimatsu, Yukio Watanabe
  • Patent number: 6808380
    Abstract: An apparatus for manufacturing stiffness-taper tubing includes a die having an extrusion hole, a die holder for holding the die, and a mandrel mounted inside the die holder and that fits in the extrusion hole. The apparatus forms stiffness-taper tubing by switching between and supplying resins having different stiffnesses over the mandrel from a plurality of resin-supply ports formed in the die holder such that the stiffness gradually changes in the lengthwise direction. A mandrel insertion hole connecting to the extrusion hole is formed in the die holder and the mandrel is mounted in this mandrel insertion hole. The plurality of resin-supply ports open to a cylindrical space formed between the inner surface of the mandrel insertion hole and the outer surface of the mandrel at a position separated from the extrusion hole in the die, and the plurality of resins flow together in this space.
    Type: Grant
    Filed: January 2, 2002
    Date of Patent: October 26, 2004
    Assignee: GMA Co., Ltd.
    Inventors: Yukio Watanabe, Takeshi Kizuka
  • Patent number: 6803603
    Abstract: Part of light emitted downward by an active layer is reflected by an electrode functioning as a reflective layer, and travels upward to radiate outside. Since the electrode is made of a metal, it reflects almost all light regardless of its incident angle, and light can be efficiently extracted.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: October 12, 2004
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koichi Nitta, Haruhiko Okazaki, Yukio Watanabe, Chisato Furukawa