Patents by Inventor Yasuhiro Tanaka

Yasuhiro Tanaka 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: 20110157701
    Abstract: In a diffractive optical element, a first optical member and a second optical member are stacked, and a diffraction grating is formed at an interface between the first and second optical members. The diffractive optical element is configured so that the followings fall within a predetermined range: an inter-material gradient which is a ratio of an amount of change in reference refractive indexes between the first optical member and the second optical member, to an amount of change in principal dispersions between the first optical member and the second optical member; and a blaze wavelength of the diffraction grating.
    Type: Application
    Filed: December 28, 2010
    Publication date: June 30, 2011
    Inventors: Kazuhiro YAMADA, Yasuhiro Tanaka
  • Patent number: 7957255
    Abstract: A storage unit stores a preamble signal defined in a legacy system and a preamble signal defined in a MIMO system. A monitoring unit in a transmitting apparatus monitors the existence of any communication apparatus which is not compatible with the MIMO system but accepts the legacy system. A channel characteristics acquiring unit derives the characteristics of a radio channel between the transmitting apparatus and a receiving apparatus. A selector selects a packet format based on a monitoring result obtained by the monitoring unit. The selector also selects where to place LTS, based on the characteristics of wireless channel derived by the channel characteristics acquiring unit.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: June 7, 2011
    Assignees: Sanyo Electric Co., Ltd., NTT Data Sanyo System Corporation
    Inventors: Seigo Nakao, Yasuhiro Tanaka, Nobuo Higashida
  • Patent number: 7920455
    Abstract: A complex optical element includes a first optical portion and a second optical portion which are made of materials different from each other. The second optical portion is bonded to an optical functional face of the first optical portion. A concavoconvex face part is formed at the central part of the bond area between the first optical portion and the second optical portion.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: April 5, 2011
    Assignee: Panasonic Corporation
    Inventors: Katsuhiko Hayashi, Jun Murata, Yasuhiro Tanaka, Michihiro Yamagata
  • Patent number: 7911998
    Abstract: A radio apparatus communicates with a plurality of terminal apparatuses by using a packet signal composed of at least one stream. A control unit divides a certain period into a plurality of partial periods and assigns respectively the plurality of partial periods to the plurality of terminal apparatuses by associating the periods with the terminal apparatuses. The control unit also generates a packet signal for use in control and packet signals for use in inquiry. In so doing, the control unit generates the inquiry packet signals for the plurality of respective terminal apparatuses, as a single packet signal. A baseband processing unit and other units transmit the control packet signal and then transmit the inquiry packet signals, and receive packet signals, containing inquiry results, from the plurality of respective terminal apparatuses.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: March 22, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Yasuhiro Tanaka
  • Patent number: 7907507
    Abstract: A storage unit stores a preamble signal defined in a legacy system and a preamble signal defined in a MIMO system. A monitoring unit in a transmitting apparatus monitors the existence of any communication apparatus which is not compatible with the MIMO system but accepts the legacy system. A channel characteristics acquiring unit derives the characteristics of a radio channel between the transmitting apparatus and a receiving apparatus. A selector selects a packet format based on a monitoring result obtained by the monitoring unit. The selector also selects where to place LTS, based on the characteristics of wireless channel derived by the channel characteristics acquiring unit.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: March 15, 2011
    Assignees: Sanyo Electric Co., Ltd., NTT Data Sanyo System Corporation
    Inventors: Seigo Nakao, Yasuhiro Tanaka, Nobuo Higashida
  • Patent number: 7902179
    Abstract: A pharmaceutical composition containing a heterocyclic compound of the formula (I) wherein each symbol is as defined in the specification, an isomer thereof, a solvate thereof or a pharmaceutically acceptable salt thereof as an active ingredient has a superior TNF-? production suppressing action. Accordingly, it is useful for the prophylaxis or treatment of various diseases caused by abnormal production of TNF-?.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: March 8, 2011
    Assignee: Ajinomoto Co., Inc.
    Inventors: Yasuhiro Tanaka, Kohichi Fujita, Yoshitomo Chujoh, Syunsuke Fukuda, Yuka Ikenoue, Tomoyuki Tagami, Akira Chiba, Ariko Kodaira, Hideki Matsumoto, Tadakiyo Nakagawa, Tatsuhiro Yamada, Manabu Suzuki, Masahiro Murata
  • Patent number: 7904116
    Abstract: An examining unit examines the radio wave environments on at least one of a plurality of frequency channels usable in communications. Based on a result of examination by the examining unit, a selector selects a frequency channel to be used for communications. While using the channel selected by the selector, an execution unit transmits signals from a plurality of antennas to a terminal apparatus and performs calibration on the plurality of antennas by receiving signals from the terminal apparatus via the plurality of antennas.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: March 8, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Yasuhiro Tanaka, Seigo Nakao
  • Publication number: 20110054663
    Abstract: A three-dimensional modeling apparatus includes a stage, a head, a movement mechanism, and a control unit. The head supplies a process liquid that is one of a solution and a dispersion liquid onto the stage to cause a material that constitutes a three-dimensional object to be precipitated out of the process liquid by evaporating one of a solvent and a dispersion medium therefrom. The movement mechanism relatively moves the head and the stage. The control unit controls a drive of the movement mechanism to form the three-dimensional object.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 3, 2011
    Applicant: SONY CORPORATION
    Inventors: Takeshi Matsui, Yasuhiro Tanaka, Junichi Kuzusako, Ikuko Tsurui
  • Publication number: 20110032811
    Abstract: A diffractive optical element includes a first optical part and a second optical part bonded to each other with a bonded surface therebetween configured as a diffraction surface. In this diffractive optical element, the diffraction order of diffracted light with the largest quantity of light out of diffracted light for one of a plurality of kinds of laser beams obtained on the diffraction surface is different from the diffraction order for at least another laser beam.
    Type: Application
    Filed: August 11, 2010
    Publication date: February 10, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Yasuhiro TANAKA, Michihiro Yamagata, Katsuhiko Hayashi
  • Patent number: 7880794
    Abstract: An object of the present invention is to provide: a thin imaging device in which a high image resolution is obtained and in which the resolution does not uniformly vary even when the shooting distance is changed; and a lens array used therein. The present invention relates to an imaging device comprising: a lens array 130 constructed by arranging in parallel a plurality of lens elements having optical power in at least one surface; and an image sensor 110 in which an optical image formed by an optical system having each of the lens elements is received by each of mutually different imaging regions each having a plurality of photoelectric conversion sections so that the optical image is converted into an electric image signal, wherein each lens element and the imaging region corresponding to the lens element constitute an imaging unit, while the imaging units have diverse imaging region areas. The present invention relates also to a lens array used therein.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: February 1, 2011
    Assignee: Panasonic Corporation
    Inventors: Michihiro Yamagata, Hiroaki Okayama, Kazutake Boku, Yasuhiro Tanaka, Kenichi Hayashi, Yoshimasa Fushimi, Shigeki Murata, Takayuki Hayashi
  • Patent number: 7875835
    Abstract: The present invention makes a proposal of a heating component for a pipe joint which can be easily mounted on a pipe joint and also can stabilize the assembly quality to the pipe joint. The heating component for a pipe joint is characterized in that the heating component for a pipe joint has partially thereon fitting portions each having an inner face shape fitted with a part of an outer shape of the pipe joint, and also, a holding recess portion for holding therein a heating wire is formed on an inner face portion other than the fitting portions; when the heating wire is held in the holding recess portion, and then, the heating component for piping joint is mounted to the joint by fitting the fitting portions with the parts of the outer shape of the joint, the heating wire held in the holding recess portion comes in contact with the pipe joint.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: January 25, 2011
    Assignees: Nissan Diesel Motor Co., Ltd., Nitta Moore Company
    Inventors: Yasuhiro Tanaka, Atsushi Izumi, Akinobu Tsuda, Kazunori Sawada
  • Publication number: 20110007065
    Abstract: There is a need for decreasing a variation in times for writing to TFT elements for pixels in a direction along the extension of a gate line in a liquid crystal display apparatus. A display apparatus includes a display panel having multiple gate lines and multiple drain lines arranged in a matrix and a data driver for outputting a display data signal to each drain line. The data driver includes: an internal control signal generation circuit for generating an internal control signal for setting a timing to output a data signal to a drain line of each block on a block basis by dividing the plurality of drain lines into multiple blocks; and a register circuit for recording a setting for division of the block, a setting for a delay direction and a delay width of a timing to output the data signal, and a setting for rising and falling of an internal control signal.
    Type: Application
    Filed: September 20, 2010
    Publication date: January 13, 2011
    Inventors: Yasuhiro Tanaka, Hironobu Isami, Haruhisa Iida, Hidenori Kikuchi, Yukihide Ode
  • Publication number: 20110005426
    Abstract: A recording liquid ejected contains 70% by mass to less than 90% by mass of water, glycerol, a coloring agent, and a compound having a hydroxy group in an amount satisfying relationship: 0.25<y<S60÷2500. The compound is solid at ordinary temperature and pressure and satisfied relationships: Q20<?10 and S60?S20>10. In the relationships, Q20 represents a heat of dissolution of the compound in water at 20° C. and 103 hPa on a KJ/mol basis, S20 represents the solubility of the compound at 20° C. in water, S60 represents the solubility of the compound at 60° C. in water, and Y represents the content of the compound.
    Type: Application
    Filed: June 29, 2010
    Publication date: January 13, 2011
    Applicant: SONY CORPORATION
    Inventors: Yasuhiro Tanaka, Ikuko Tsurui
  • Patent number: 7850319
    Abstract: A light-absorbing member has a substrate (101, 111) made of a material capable of absorbing light of which reflection is to be prevented, and an antireflection structure (102, 112, 303) having structural elements arranged on the surface of the curve in an array form at a period smaller than the wavelength of the light. The substrate having the shape of a curve viewed from a macroscopic viewpoint. The structural elements have a shape protruding or being recessed from a reference face corresponding to the curve of the substrate, and are arranged so that the straight lines connecting the reference face to the tips of the respective structural elements are nearly parallel to one another.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: December 14, 2010
    Assignee: Panasonic Corporation
    Inventors: Motonobu Yoshikawa, Yoshiharu Yamamoto, Michihiro Yamagata, Yasuhiro Tanaka
  • Publication number: 20100278030
    Abstract: An optical system for optical pickup, which optical system is used for performing recording, reproducing, and/or erasing of information on an optical recording medium and has a simple configuration, is provided. An optical pickup device 1 includes a collimator lens system 23, a beam expander 33, and an objective lens system 34 that includes an S-SIL element 27b. The beam expander 33 includes a lens element 33c that is supported so as to be movable in a direction perpendicular to an optical axis. By moving the lens element 33c in the direction perpendicular to the optical axis, a coma aberration of a spot on a recording layer can be compensated in a state where the interval between a surface of an optical recording medium 28 and the S-SIL element 27b opposed thereto is maintained constant.
    Type: Application
    Filed: September 19, 2008
    Publication date: November 4, 2010
    Inventors: Yasuhiro Tanaka, Michihiro Yamagata, Katsuhiko Hayashi, Masahiro Birukawa
  • Patent number: 7824005
    Abstract: A liquid ejection device includes: a liquid ejection head which includes an ejection surface and an ejection port formed at the ejection surface, ejects a droplet of liquid from the ejection port, and allows the liquid to land on an object; an elastic absorbing member which comes into contact with the ejection surface of the liquid ejection head, and absorbs the liquid adhering to the ejection surface; and moving means for moving the absorbing member with respect to the ejection surface while the absorbing member is in contact with the ejection surface, in which the absorbing member has a surface layer which is impregnated with a solution containing a surfactant.
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: November 2, 2010
    Assignee: Sony Corporation
    Inventors: Yuji Yakura, Masahiro Koike, Shota Nishi, Yasuhiro Tanaka
  • Publication number: 20100271706
    Abstract: The present disclosure relates to an optical member in which an antireflection concave-convex structure for suppressing reflection of light is provided on its surface, and an optical system, an optical unit and an optical device each including the optical member. The present disclosure provides an optical member in which the generation of reflection light and diffraction light is sufficiently suppressed and which can be fabricated in a simple manner. A antireflection concave-convex structure (15) for suppressing reflection of light, formed of filiform convex portions (16) regularly arranged, is provided on an interior surface (1a) of a lens tube (1). The antireflection concave-convex structure (15) is configured so that an angle between a normal vector of an incident plane of the light whose reflection is to be suppressed and a vector connecting respective apexes of adjacent two of the structure units at the incident surface is 60 degrees or less.
    Type: Application
    Filed: June 20, 2007
    Publication date: October 28, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Kazuhiro Yamada, Yasuhiro Tanaka, Michihiro Yamagata, Makoto Umetani, Takamasa Tamura, Motonobu Yoshikawa, Hiroshi Yamaguchi, Masaaki Sunohara
  • Patent number: 7821487
    Abstract: There is a need for decreasing a variation in times for writing to TFT elements for pixels in a direction along the extension of a gate line in a liquid crystal display apparatus. A display apparatus includes a display panel having multiple gate lines and multiple drain lines arranged in a matrix and a data driver for outputting a display data signal to each drain line. The data driver includes: an internal control signal generation circuit for generating an internal control signal for setting a timing to output a data signal to a drain line of each block on a block basis by dividing the plurality of drain lines into multiple blocks; and a register circuit for recording a setting for division of the block, a setting for a delay direction and a delay width of a timing to output the data signal, and a setting for rising and falling of an internal control signal.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: October 26, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Yasuhiro Tanaka, Hironobu Isami, Haruhisa Iida, Hidenori Kikuchi, Yukihide Ode
  • Publication number: 20100254248
    Abstract: An optical system for optical pickup, which optical system is used for performing recording, reproducing, and/or erasing of information on an optical recording medium and has a simple configuration, is provided. An optical pickup device 1 includes a collimator lens system 23, a beam expander 33, and an objective lens system 34 that includes an S-SIL element 27b. The beam expander 33 includes three lens elements 33a to 33c. By moving in an optical axis direction, the two lens elements 33a and 33b included in the beam expander 33 adjust a focal point of a spot formed within an optical recording medium 28, and compensate a spherical aberration caused by the difference in depth between recording layers.
    Type: Application
    Filed: September 19, 2008
    Publication date: October 7, 2010
    Inventors: Yasuhiro Tanaka, Michihiro Yamagata, Katsuhiko Hayashi, Masahiro Birukawa
  • Publication number: 20100246379
    Abstract: A storage unit stores a preamble signal defined in a legacy system and a preamble signal defined in a MIMO system. A monitoring unit in a transmitting apparatus monitors the existence of any communication apparatus which is not compatible with the MIMO system but accepts the legacy system. A channel characteristics acquiring unit derives the characteristics of a radio channel between the transmitting apparatus and a receiving apparatus. A selector selects a packet format based on a monitoring result obtained by the monitoring unit. The selector also selects where to place LTS, based on the characteristics of wireless channel derived by the channel characteristics acquiring unit.
    Type: Application
    Filed: April 15, 2010
    Publication date: September 30, 2010
    Applicant: Sanyo Electric Co., Ltd./NTT Data Sanyo System Corporation
    Inventors: Seigo NAKAO, Yasuhiro Tanaka, Nobuo Higashida