Patents by Inventor Koji Ueno

Koji Ueno 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: 8665201
    Abstract: A display device includes: a source driver; a plurality of gate drivers which share a plurality of scan signal lines to which they are connected; a gate output judging section for judging whether or not each of the plurality of gate drivers has a failure, on the basis of timing at which a gate signal Gout is outputted from a corresponding one of the plurality of gate drivers; and a control section for, in a case where the gate output judging section judges that the gate driver has a failure, switching over to the gate driver. This makes it possible to extend a lifetime of the display device with not a complicated arrangement but a simple arrangement.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: March 4, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Koji Ueno
  • Patent number: 8530699
    Abstract: The objective of the present invention is to provide a process for producing highly pure (meth) acrylic acid stably and efficiently with crystallization. The process for production of (meth)acrylic acid according to the present invention is characterized in comprising the steps of cooling a crude (meth)acrylic acid solution in a crystallization apparatus until the temperature of a cooling medium discharged from the crystallization apparatus is stabilized in the range of higher than the solidification point of the crude (meth)acrylic acid solution in the crystallization apparatus and not more than the solidification point plus 5° C.; then bringing the crude (meth)acrylic acid solution in the crystallization apparatus to a supercooled condition by setting the temperature of a cooling medium supplied to the crystallization apparatus at the temperature of not more than the solidification point of the crude (meth)acrylic acid solution minus 1° C.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: September 10, 2013
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yoshitake Ishii, Koji Ueno
  • Patent number: 8514262
    Abstract: An information processing apparatus is connected with at least one external apparatus via a network. An input image of a first user related to the information processing apparatus is accepted while displaying a plurality of target images on a display. The plurality of target images includes an image of a second user related to the external apparatus. A gaze of the first user is detected from the input image. A target image looked by the first user is recognized from the plurality of target images, based on the gaze. A first head model as a head model of the first user, and a first texture to be projected onto the first head model, are generated. A first ID to identify a subject of the target image, the first head model and the first texture, are transmitted to the external apparatus.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: August 20, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Koji Ueno, Nobuhiro Shimogori, Sogo Tsuboi, Keisuke Nishimura, Akira Kumano
  • Publication number: 20130030794
    Abstract: According to one embodiment, a speaker clustering apparatus includes a clustering unit, an extraction unit, and an error detection unit. The clustering unit is configured to extract acoustic features for speakers from an acoustic signal, and to cluster utterances included in the acoustic signal into the speakers by using the acoustic features. The extraction unit is configured to acquire character strings representing contents of the utterances, and to extract linguistic features of the speakers by using the character strings. The error detection unit is configured to decide that, when one of the character strings does not fit with a linguistic feature of a speaker into which an utterance of the one is clustered, the utterance is erroneously clustered by the clustering unit.
    Type: Application
    Filed: March 6, 2012
    Publication date: January 31, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoo Ikeda, Manabu Nagao, Osamu Nishiyama, Hirokazu Suzuki, Koji Ueno, Nobuhiro Shimogori
  • Patent number: 8232329
    Abstract: An inkjet ink that prevents paper deformation such as curling, and also exhibits favorable pigment dispersibility. The inkjet ink includes at least a pigment, water, a water-soluble organic solvent having an ? value of not more than 65, and a dispersant, wherein the dispersant is a copolymer having a unit A represented by general formula (a) shown below and a unit B represented by general formula (b) shown below, and the mass ratio between the water-soluble organic solvent and the water satisfies (water-soluble organic solvent)/water=5/5 to 8/2. [In general formula (a), R1 represents a hydrogen atom or a lower alkyl group, and m represents an integer of 1 to 3.] [In general formula (b), R2 and R3 each represents a hydrogen atom or a lower alkyl group, wherein R2 and R3 may be the same or different, and n represents an integer of 1 to 250.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: July 31, 2012
    Assignees: Tokyo University of Science Educational Foundation Administrative Organization, Riso Kagaku Corporation
    Inventors: Hidenori Otsuka, Masayuki Fukaishi, Takashi Ishizuka, Koji Ueno, Yoshihiro Saito, Teruaki Okawa, Naofumi Ezaki
  • Publication number: 20120108847
    Abstract: The objective of the present invention is to provide a crystallization device and a crystallization process for obtaining (meth)acrylic acid with higher purity without causing leakage of a crude solution by preventing complete clogging in a crystallization tube from occurring.
    Type: Application
    Filed: June 24, 2010
    Publication date: May 3, 2012
    Inventors: Kazuhiko Sakamoto, Koji Ueno, Yoshitake Ishii, Masatsugu Kitaura
  • Publication number: 20120108857
    Abstract: PROBLEM An object of the present invention is to provide a crystallization unit capable of producing a purified acrylic acid having high purity efficiently. SOLUTION The present invention provides a crystallization unit to separate an acrylic acid-containing solution into a mother liquid and a purified acrylic acid, wherein the crystallization unit comprises a crystallizer having an exit to take out the mother liquid and the purified acrylic acid alternately; a supply line to supply the acrylic acid-containing solution to the crystallizer; and a recovery line to recover the mother liquid and the purified acrylic acid alternately from the crystallizer which is connected to the exit, and wherein the recovery line is equipped with an opening and closing unit consisting of a ball valve or a gate valve.
    Type: Application
    Filed: June 24, 2010
    Publication date: May 3, 2012
    Inventors: Kazuhiko Sakamoto, Koji Ueno, Yoshitake Ishii, Masatsugu Kitaura
  • Publication number: 20120083624
    Abstract: The objective of the present invention is to provide a process for production of (meth)acrylic acid with improved production efficiency by efficiently shifting from heating procedure to cooling procedure for a crystallizer. A process for production of (meth)acrylic acid according to the present invention is characterized in comprising the steps of crystallizing (meth)acrylic acid from a crude (meth)acrylic acid solution by using a batch type crystallizer, and melting the obtained (meth)acrylic acid crystal to obtain a (meth)acrylic acid melted liquid; wherein preliminary cooling of the crystallizer for the next crystallization step is started during transferring the (meth)acrylic acid melted liquid from the crystallizer.
    Type: Application
    Filed: June 24, 2010
    Publication date: April 5, 2012
    Inventors: Kazuhiko Sakamoto, Koji Ueno, Yoshitake Ishii, Nakagawa Satoshi
  • Publication number: 20120071620
    Abstract: PROBLEM There is provided a melting method of (meth)acrylic acid crystal which is capable of providing a higher quality of (meth)acrylic acid without carrying out an additional purification treatment to (meth)acrylic acid obtained by a crystallization operation accompanied by melting of (meth)acrylic acid. In addition, there is provided a simple method for adjusting a content of polymerization inhibitor in a product (meth)acrylic acid. SOLUTION In the crystallization method melting (meth)acrylic acid crystal while wetting with the crystalline molten liquid, a polymerization inhibitor is added to a molten liquid melted after initiation of melting, and all of crystal is melted while circulating and feeding the molten liquid containing said polymerization inhibitor to the crystal.
    Type: Application
    Filed: May 27, 2010
    Publication date: March 22, 2012
    Inventors: Kazuhiko Sakamoto, Koji Ueno, Yoshitake Ishii, Harunori Hirao, Satoshi Nakagawa
  • Publication number: 20120046495
    Abstract: The objective of the present invention is to provide a process for producing highly pure (meth) acrylic acid stably and efficiently with crystallization. The process for production of (meth)acrylic acid according to the present invention is characterized in comprising the steps of cooling a crude (meth)acrylic acid solution in a crystallization apparatus until the temperature of a cooling medium discharged from the crystallization apparatus is stabilized in the range of higher than the solidification point of the crude (meth)acrylic acid solution in the crystallization apparatus and not more than the solidification point plus 5° C.; then bringing the crude (meth)acrylic acid solution in the crystallization apparatus to a supercooled condition by setting the temperature of a cooling medium supplied to the crystallization apparatus at the temperature of not more than the solidification point of the crude (meth)acrylic acid solution minus 1° C.
    Type: Application
    Filed: May 7, 2010
    Publication date: February 23, 2012
    Inventors: Yoshitake Ishii, Koji Ueno
  • Publication number: 20120034605
    Abstract: Disclosed is a method for determining the presence or absence of a colorectal tumor, specifically colorectal cancer or colorectal adenoma, with high sensitivity and high specificity by employing the methylation of DNA as a measure. Also disclosed is a kit for carrying out the method. Specifically, measurement is made on the degree of methylation of one or more CpG sequences contained in the region lying between positions -477 to -747, more preferably a CGCG sequence contained in the region lying between positions -688 to -691, in TWIST1 gene (Homo sapiens twist homolog 1; Drosophila gene) located on the genome sequence of a test cell.
    Type: Application
    Filed: April 5, 2010
    Publication date: February 9, 2012
    Applicant: A&T CORPORATION
    Inventors: Yuji Hinoda, Yutaka Suehiro, Koji Ueno, Toshiyuki Okada
  • Publication number: 20120015440
    Abstract: A spheroid composite includes: a substrate including a cell-adhesive porous base material and plural hydrophilic regions and hydrophobic regions that are disposed on the porous base material and formed by curing a photosensitive composition, wherein the photosensitive composition includes a branched polyalkylene glycol derivative having three or more polyalkylene glycol groups, each having a polymerizable substituent at a terminal thereof, and a tri- or higher-valent linking group that binds to the polyalkylene glycol groups; and spheroids formed in the hydrophobic regions on the substrate, the plural spheroids having a uniform size. A spheroid-containing hydrogel, which includes a hydrogel and two or more spheroids having a uniform size with a diameter of from 70 ?m to 400 ?m that are disposed in the hydrogel in such a manner that the two or more spheroids do not contact each other, can favorably maintain the function of the plural spheroids contained within the hydrogel.
    Type: Application
    Filed: September 8, 2009
    Publication date: January 19, 2012
    Applicant: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORG.
    Inventors: Hidenori Otsuka, Tomomi Satomi, Koji Ueno, Masashi Yamamoto, Yuichi Nakasone, Kyoko Akashi
  • Publication number: 20110319661
    Abstract: A process for producing (meth)acrylic acid of the present invention comprises the steps in the following order: a crystallization step of supplying a cooling medium cooled by a heat source device to a crystallizer to obtain a (meth)acrylic acid crystal from a crude (meth)acrylic acid solution; an adjustment step of returning the cooling medium discharged from the crystallizer to the crystallizer without cooling; a sweating step of supplying a heating medium to the crystallizer to partially melt the (meth)acrylic acid crystal, thereby obtaining a melted liquid, and discharging the melted liquid from the crystallizer; and a melting step of supplying the heating medium to the crystallizer to melt the (meth)acrylic acid crystal, thereby obtaining purified (meth)acrylic acid. According to the present invention, purified (meth)acrylic acid with high purity can be obtained.
    Type: Application
    Filed: January 29, 2010
    Publication date: December 29, 2011
    Inventors: Kazuhiko Sakamoto, Koji Ueno, Yoshitake Ishii, Takashi Sugimoto, Masatsugu Kitaura, Satoshi Nakagawa, Kunihiko Suzuki
  • Publication number: 20110284470
    Abstract: [PROBLEM] There is provided a method for regenerating a filter, by which deterioration of the color tone of purified acrylic acid can be prevented.
    Type: Application
    Filed: January 26, 2010
    Publication date: November 24, 2011
    Inventors: Koji Ueno, Kunihiko Suzuki, Atsushi Sugano
  • Publication number: 20110148825
    Abstract: A display device includes: a source driver; a plurality of gate drivers which share a plurality of scan signal lines to which they are connected; a gate output judging section for judging whether or not each of the plurality of gate drivers has a failure, on the basis of timing at which a gate signal Gout is outputted from a corresponding one of the plurality of gate drivers; and a control section for, in a case where the gate output judging section judges that the gate driver has a failure, switching over to the gate driver. This makes it possible to extend a lifetime of the display device with not a complicated arrangement but a simple arrangement.
    Type: Application
    Filed: October 6, 2009
    Publication date: June 23, 2011
    Applicant: Sharp Kabushiki Kaisha
    Inventor: Koji Ueno
  • Publication number: 20100220897
    Abstract: An information processing apparatus is connected with at least one external apparatus via a network. An input image of a first user related to the information processing apparatus is accepted while displaying a plurality of target images on a display. The plurality of target images includes an image of a second user related to the external apparatus. A gaze of the first user is detected from the input image. A target image looked by the first user is recognized from the plurality of target images, based on the gaze. A first head model as a head model of the first user, and a first texture to be projected onto the first head model, are generated. A first ID to identify a subject of the target image, the first head model and the first texture, are transmitted to the external apparatus.
    Type: Application
    Filed: February 25, 2010
    Publication date: September 2, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koji UENO, Nobuhiro Shimogori, Sogo Tsuboi, Keisuke Nishimura, Akira Kumano
  • Publication number: 20100159212
    Abstract: An inkjet ink that prevents paper deformation such as curling, and also exhibits favorable pigment dispersibility. The inkjet ink includes at least a pigment, water, a water-soluble organic solvent having an ? value of not more than 65, and a dispersant, wherein the dispersant is a copolymer having a unit A represented by general formula (a) shown below and a unit B represented by general formula (b) shown below, and the mass ratio between the water-soluble organic solvent and the water satisfies (water-soluble organic solvent)/water=5/5 to 8/2. [In general formula (a), R1 represents a hydrogen atom or a lower alkyl group, and m represents an integer of 1 to 3.] [In general formula (b), R2 and R3 each represents a hydrogen atom or a lower alkyl group, wherein R2 and R3 may be the same or different, and n represents an integer of 1 to 250.
    Type: Application
    Filed: August 27, 2009
    Publication date: June 24, 2010
    Applicants: TOKYO UNIVERSITY OF SCIENCE EDUCATIONAL FOUNDATION ADMINISTRATIVE ORGANIZATION, RISO KAGAKU CORPORATION
    Inventors: Hidenori Otsuka, Masayuki Fukaishi, Takashi Ishizuka, Koji Ueno, Yoshihiro Saito, Teruaki Okawa, Naofumi Ezaki
  • Publication number: 20090218079
    Abstract: There is provided a heat-emitting element cooling apparatus capable of enhancing cooling effect on a heat-emitting element as well as reducing noise. A heat sink includes a core portion and a plurality of radiation fins fixed to the core portion. Dimensions of the core portion and the radiation fins are defined in such a manner that the diameter L1 of the core portion should be 37% to 45% of the diameter L2 of a shape depicted by a virtual connecting line which connects end portions of the radiation fins.
    Type: Application
    Filed: February 26, 2009
    Publication date: September 3, 2009
    Applicant: SANYO DENKI CO., LTD.
    Inventors: Michinori Watanabe, Haruhisa Maruyama, Toshiki Ogawara, Koji Ueno
  • Patent number: 7514581
    Abstract: The objective of the present invention is to provide methods of efficiently purifying and producing acrylic acid by removing solid acrylic acid polymers dissolving and existing in crude acrylic acid supplied to purifying process. The purifying method of the present invention comprises: filtrating the crude acrylic acid to obtain a filtrate at temperature from 15 to 70° C. and at liquid linear velocity of 5 m/s or less, wherein the crude acrylic acid contains an acrylic acid of 50% by mass or more; and purifying the acrylic acid from the filtrate. The producing method of the present invention comprises carrying out the purifying method.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: April 7, 2009
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yoshitake Ishii, Koji Ueno
  • Patent number: 7381839
    Abstract: The objective of the present invention is to provide method for acrylic acid in which a generation of polymerized substance is prevented while acrylic acid is stored in a storage tank. A method of the present invention for producing acrylic acid, comprising storing acrylic acid in a storage tank, wherein a process liquid containing 50 mass % or more of acrylic acid is subjected to at least one filtering operation at 15 to 70° C. when the process liquid is supplied to the storage tank.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: June 3, 2008
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Koji Ueno, Yoshitake Ishii