Patents by Inventor Takao Nakamura

Takao Nakamura 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: 20080030335
    Abstract: A plurality of RFID tags that store therein position information and other information are arranged at different locations, and a tag extracting device extracts at least one RFID tag among the RFID tags. The tag extracting device includes a reading unit that reads position information from a plurality of information-read RFID tags from among the plurality of RFID tags; a determining unit that determines, based on read position information, an area where the information-read RFID tags are concentrated; and an extracting unit that extracts at least one RFID tag from among the information-read RFID tags as a target RFID tag whose the other information is to be used in subsequent processing.
    Type: Application
    Filed: June 27, 2007
    Publication date: February 7, 2008
    Applicants: FUJITSU LIMITED, Ajinomoto Co., Inc.
    Inventors: Hirotake Nishida, Norihiro Nakamura, Haruo Obana, Takeshi Miki, Ichirou Ono, Takao Nakamura, Hideshi Numata
  • Publication number: 20080018428
    Abstract: A communication device includes a radio frequency identification tag that performs a radio communication with a predetermined device. A first metal body has an electrical conductivity. A space adjustment unit is configured to adjust a space between the first metal body and the radio frequency identification tag. The first metal body is configured to be replaced with a second metal body, and when the first metal body is replaced with the second metal body, the space adjustment unit is configured to adjust a space between the second metal body and the radio frequency identification tag.
    Type: Application
    Filed: July 17, 2007
    Publication date: January 24, 2008
    Applicant: FUJITSU LIMITED
    Inventors: Norihiro NAKAMURA, Hirotaka NISHIDA, Naohiro HIROTA, Haruo OBANA, Ichirou ONO, Takeshi MIKI, Takao NAKAMURA, Hideshi NUMATA
  • Publication number: 20070292612
    Abstract: A metal-organic vaporizing and feeding apparatus includes: a retention vessel for retaining a metal-organic material; a bubbling gas feeding path connected to the retention vessel, for feeding bubbling gas to the metal-organic material; a metal-organic gas feeding path connected to the retention vessel, for feeding metal-organic gas generated in the retention vessel and dilution gas to a deposition chamber; a dilution gas feeding path connected to the metal-organic gas feeding path, for feeding the dilution gas to the metal-organic gas feeding path; a flow rate regulator provided in the bubbling gas feeding path, for regulating flow rate of the bubbling gas; a pressure regulator for regulating pressure of the dilution gas; and a sonic nozzle disposed in the metal-organic gas feeding path on a downstream side of a connecting position between the metal-organic gas feeding path and the dilution gas feeding path.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 20, 2007
    Inventors: Masaki Ueno, Toshio Ueda, Takao Nakamura, Koichi Ishikawa, Ken Takahashi, Osamu Yasaku, Kazuo Ujiie, Kikurou Takemoto
  • Publication number: 20070278485
    Abstract: A substrate inspection method allowing inspection of all a plurality of substrates each provided at its surface with a plurality of layers by determining quality of the plurality of layers as well as methods of manufacturing the substrate and an element using the substrate inspection method are provided. The substrate inspection method includes a step of preparing the substrate provided at its main surface with the plurality of layers, a film forming step, a local etching step, and an inspection step or a composition analysis step. In the step, a concavity is formed in a region provided with an epitaxial layer of the main surface of the substrate by removing at least partially the epitaxial layer. In the inspection step, the inspection is performed on the layer exposed in the concavity.
    Type: Application
    Filed: June 1, 2007
    Publication date: December 6, 2007
    Inventors: Takao Nakamura, Toshio Ueda, Takashi Kyono
  • Patent number: 7294867
    Abstract: The semiconductor light generating device comprises a light generating region 3, a first AlX1Ga1-X1N semiconductor (0?X1?1) layer 5 and a second AlX2Ga1-X2N semiconductor (0?X2?1) layer 7. In this semiconductor light generating device, the light generating region 3 is made of III-nitride semiconductor, and includes a InAlGaN semiconductor layer. The first AlX1Ga1-X1N semiconductor (0?X1?1) layer 5 is doped with a p-type dopant, such as magnesium, and is provided on the light generating region 3. The second AlX2Ga1-X2N semiconductor layer 7 has a p-type concentration smaller than the first AlX1Ga1-X1N semiconductor layer 5. The second AlX2Ga1-X2N semiconductor (0?X2?1) layer 7 is provided between the light generating region 3 and the first AlX1Ga1-X1N semiconductor layer 5.
    Type: Grant
    Filed: January 11, 2005
    Date of Patent: November 13, 2007
    Assignees: Sumitomo Electric Industries, Ltd., Riken
    Inventors: Katsushi Akita, Takao Nakamura, Hideki Hirayama
  • Publication number: 20070252162
    Abstract: To provide a light-emitting device using a nitride semiconductor which can attain high-power light emission by highly efficient light emission and a manufacturing method thereof, the light-emitting device includes a GaN substrate and a light-emitting layer including an InAlGaN quaternary alloy on a side of a first main surface of GaN substrate.
    Type: Application
    Filed: June 12, 2007
    Publication date: November 1, 2007
    Applicants: Sumitomo Electric Industries, Ltd., RIKEN
    Inventors: Hideki Hirayama, Katsushi Akita, Takao Nakamura
  • Publication number: 20070164306
    Abstract: The invention provides Group III nitride semiconductor crystals of a size appropriate for semiconductor devices and methods for manufacturing the same, Group III nitride semiconductor devices and methods for manufacturing the same, and light-emitting appliances. A method of manufacturing a Group III nitride semiconductor crystal includes a process of growing at least one Group III nitride semiconductor crystal substrate on a starting substrate, a process of growing at least one Group III nitride semiconductor crystal layer on the Group III nitride semiconductor crystal substrate, and a process of separating a Group III nitride semiconductor crystal, constituted by the Group III nitride semiconductor crystal substrate and the Group III nitride semiconductor crystal layer, from the starting substrate, and is characterized in that the Group III nitride semiconductor crystal is 10 ?m or more but 600 ?m or less in thickness, and is 0.2 mm or more but 50 mm or less in width.
    Type: Application
    Filed: May 13, 2005
    Publication date: July 19, 2007
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Seiji Nakahata, Hideaki Nakahata, Koji Uematsu, Makoto Kiyama, Youichi Nagai, Takao Nakamura
  • Publication number: 20070141642
    Abstract: The present inventors conducted a similarity search of the amino acid sequence of known G protein-coupled receptor proteins in GenBank, and obtained a novel human GPCR gene “BG37”. cDNA containing the ORF of the gene was cloned and its nucleotide sequence was determined. Moreover, novel GPCR “BG37” genes from mouse and rat were isolated. Use of the novel GPCR of the present invention enables screening of ligands, compounds inhibiting the binding to a ligand, and candidate compounds of pharmaceuticals which can regulate signal transduction from the “BG37” receptor.
    Type: Application
    Filed: February 8, 2007
    Publication date: June 21, 2007
    Applicant: Banyu Pharmaceutical Co., Ltd.
    Inventors: Takaharu Maruyama, Takao Nakamura, Hiraku Itadani, Ken-Ichi Tanaka
  • Patent number: 7202509
    Abstract: In order to provide light emitting devices which have simple constructions and thus can be fabricated easily, and can stably provide high light emission efficiencies for a long time period, a light emitting device includes an n-type nitride semiconductor layer at a first main surface side of a nitride semiconductor substrate, a p-type nitride semiconductor layer placed more distantly from the nitride semiconductor substrate than the n-type nitride semiconductor layer at the first main surface side and a light emitting layer placed between the n-type nitride semiconductor layer and the p-type nitride semiconductor layer at the first main surface side. The nitride semiconductor substrate has a resistivity of 0.5 ?·cm or less and the p-type nitride semiconductor layer side is down-mounted so that light is emitted from the second main surface of the nitride semiconductor substrate at the opposite side from the first main surface.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: April 10, 2007
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Youichi Nagai, Makoto Kiyama, Takao Nakamura, Takashi Sakurada, Katsushi Akita, Koji Uematsu, Ayako Ikeda, Koji Katayama, Susumu Yoshimoto
  • Patent number: 7198914
    Abstract: The present inventors conducted a similarity search of the amino acid sequence of known G protein-coupled receptor proteins in GenBank, and obtained a novel human GPCR gene “BG37”. cDNA containing the ORF of the gene was cloned and its nucleotide sequence was determined. Moreover, novel GPCR “BG37” genes from mouse and rat were isolated. Use of the novel GPCR of the present invention enables screening of ligands, compounds inhibiting the binding to a ligand, and candidate compounds of pharmaceuticals which can regulate signal transduction from the “BG37” receptor.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: April 3, 2007
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Takaharu Maruyama, Takao Nakamura, Hiraku Itadani, Ken-Ichi Tanaka
  • Publication number: 20070067636
    Abstract: A method for embedding digital watermark data in digital data contents includes the steps of obtaining a frequency coefficient of block data of digital data contents, obtaining a complexity of the block data, obtaining an amount of transformation of the frequency coefficient from the complexity and the digital watermark data, and embedding the digital watermark data by transforming the frequency coefficient. In addition, a method for reading digital watermark data includes the steps of calculating a probability of reading ‘1’ or ‘0’ in a read bit sequence by using a test method on the basis of binary distribution, determining the presence or absence of digital watermark data according to the probability, and reconstituting digital watermark data. Another method includes the steps of performing soft decision in code theory by assigning weights to the digital watermark sequence with a weighting function, and reconstituting digital watermark data.
    Type: Application
    Filed: November 16, 2006
    Publication date: March 22, 2007
    Inventors: Hiroshi Ogawa, Takao Nakamura, Atsuki Tomioka, Youichi Takashima
  • Patent number: 7190004
    Abstract: A light emitting device includes a nitride semiconductor substrate with a resistivity of 0.5 ?·cm or less, an n-type nitride semiconductor layer and a p-type nitride semiconductor layer placed more distantly from the nitride semiconductor substrate than the n-type nitride semiconductor layer at a first main surface side of the nitride semiconductor substrate, and a light emitting layer placed between the n-type nitride semiconductor layer and the p-type nitride semiconductor layer, wherein one of the nitride semiconductor substrate and the p-type nitride semiconductor layer is mounted at the top side which emits light and the other is placed at the down side, and a single electrode is placed at the top side. Therefore, there is provided a light emitting device which has a simple configuration thereby making it easy to fabricate, can provide a high light emission efficiency for a long time period, and can be easily miniaturized.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: March 13, 2007
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Youichi Nagai, Makoto Kiyama, Takao Nakamura, Takashi Sakurada, Katsushi Akita, Koji Uematsu, Ayako Ikeda, Koji Katayama, Susumu Yoshimoto
  • Publication number: 20070015220
    Abstract: A full-length cDNA encoding a human-derived G protein-coupled receptor protein is isolated by screening a human hippocampus library. Also, a rat-derived cDNA corresponding to the human-derived cDNA is isolated. Proteins encoded by these cDNAs have an activity of lowering intracellular cAMP concentration under stimulation with histamine. These proteins are usable as tools in screening ligands thereof or in screening candidate compounds for drugs capable of regulating signal transduction from the above proteins.
    Type: Application
    Filed: June 6, 2006
    Publication date: January 18, 2007
    Inventors: Hiraku Itadani, Tetsuo Takimura, Takao Nakamura, Masahiko Kobayashi, Ken-Ichi Tanaka, Yusuke Hidaka, Masataka Ohta
  • Patent number: 7164778
    Abstract: A method for embedding a watermark into a digital image. The method includes independently changing real number components and imaginary number components of each of coefficient values of a complex watermark coefficient matrix using a key, from the watermark to be embedded in the digital image. The method further includes a step for performing a discrete Fourier inverse transform on the sequence matrix of the changed watermark and generating a watermark pattern. The method also includes a step for adding like tiling the water mark pattern to the original image, and generating an embedded image.
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: January 16, 2007
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Takao Nakamura, Hiroshi Ogawa, Atsuki Tomioka, Youichi Takashima
  • Patent number: 7147289
    Abstract: A wheel cover (10) has a plurality of vent holes (15) along an outer peripheral portion of a wheel cover body (11) at positions opposed to solid portions (8) between disc openings (6) in a road wheel (1). An engagement member (12) projects from the edge portion (16) of the vent hole (15), toward the wheel disc (2) of the road wheel (1). A disc-locking portion (18) projects from the tip end portion of the engagement member (12), toward the vent hole (15), and preferably includes locking protrusions (31, 32) engageable with a peripheral portion (7) of the disc opening (6), so that a retainer (24) is engaged with a retainer locking concave portion (35) to urge and hold the disc-locking portion (18).
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: December 12, 2006
    Assignee: Altia Hashimoto Co., Ltd.
    Inventor: Takao Nakamura
  • Publication number: 20060204032
    Abstract: A method for embedding a watermark into digital data, when the watermark is to be embedded in a digital image, independently changes real number components and imaginary number components of each of coefficient values of a complex watermark coefficient matrix using key, from the watermark to be embedded in the digital image, a step for performing a discrete Fourier inverse transform on the sequence matrix of the changed watermark and generating a watermark pattern; and a step for adding like tiling the water mark pattern to the original image, and generating an embedded image.
    Type: Application
    Filed: April 25, 2006
    Publication date: September 14, 2006
    Inventors: Takao Nakamura, Hiroshi Ogawa, Atsuki Tomioka, Youichi Takashima
  • Publication number: 20060193491
    Abstract: A method for embedding a watermark into digital data, when the watermark is to be embedded in a digital image, independently changes real number components and imaginary number components of each of coefficient values of a complex watermark coefficient matrix using key, from the watermark to be embedded in the digital image, a step for performing a discrete Fourier inverse transform on the sequence matrix of the changed watermark and generating a watermark pattern; and a step for adding like tiling the water mark pattern to the original image, and generating an embedded image.
    Type: Application
    Filed: April 25, 2006
    Publication date: August 31, 2006
    Inventors: Takao Nakamura, Hiroshi Ogawa, Atsuki Tomioka, Youichi Takashima
  • Patent number: 7074594
    Abstract: A full-length cDNA encoding a human-derived G protein-coupled receptor protein is isolated by screening a human hippocampus library. Also, a rat-derived cDNA corresponding to the human-derived cDNA is isolated. Proteins encoded by these cDNAs have an activity of lowering intracellular cAMP concentration under stimulation with histamine. These proteins are usable as tools in screening ligands thereof or in screening candidate compounds for drugs capable of regulating signal transduction from the above proteins.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: July 11, 2006
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Hiraku Itadani, Tetsuo Takimura, Takao Nakamura, Masahiko Kobayashi, Ken-Ichi Tanaka, Yusuke Hidaka, Masataka Ohta
  • Patent number: 7072492
    Abstract: A method for embedding digital watermark data in digital data contents includes the steps of obtaining a frequency coefficient of block data of digital data contents, obtaining a complexity of the block data, obtaining an amount of transformation of the frequency coefficient from the complexity and the digital watermark data, and embedding the digital watermark data by transforming the frequency coefficient. In addition, a method for reading digital watermark data includes the steps of calculating a probability of reading ‘1’ or ‘0’ in a read bit sequence by using a test method on the basis of binary distribution, determining the presence or absence of digital watermark data according to the probability, and reconstituting digital watermark data. Another method includes the steps of performing soft decision in code theory by assigning weights to the digital watermark sequence with a weighting function, and reconstituting digital watermark data.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: July 4, 2006
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Hiroshi Ogawa, Takao Nakamura, Atsuki Tomioka, Youichi Takashima
  • Publication number: 20060126889
    Abstract: A digital watermark embedding apparatus for embedding digital watermark information by superimposing macroblock patterns on an image is disclosed. The digital watermark embedding apparatus: spreads input digital watermark information to obtain an embedding series having a length corresponding to a number of pixel blocks of a macroblock pattern; selects at least a frequency from among predetermined plural frequencies according to a term value of the embedding series corresponding to a position of a pixel block in the macroblock pattern, and sets a waveform pattern corresponding to the selected frequency as a pixel of the pixel block; and amplifies, with an embedding strength value, the macroblock pattern on which a waveform pattern is superimposed on each pixel block by the waveform pattern setting unit, and superimposes the macroblock pattern on an input image like a tile.
    Type: Application
    Filed: January 31, 2005
    Publication date: June 15, 2006
    Applicant: NIPPON TELEGRAPH AND TELEPHONE CORP.
    Inventors: Takao Nakamura, Atsushi Katayama, Masashi Yamamuro