Patents by Inventor Toshiya Aoki

Toshiya Aoki 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: 20030122773
    Abstract: A control signal generating circuit CTL for controlling the writing into pixels PIX instructs a data signal line drive circuit SD2, which is for driving pixels in a non-display area, to write a voltage VB or a voltage VW which are for non-displaying, not only in the first frame but also once in a predetermined number of frames. In other words, the pixels in the display area is refreshed at intervals longer than those in the case of refreshing the pixels in each frame. Thus, even if the mobility of an active element is high and the leak current on the occasion of OFF-state is large, or even if a large amount of electric charge is accumulated because of the photoelectric effect due to the use of a backlight, it is possible to prevent unnecessary displaying on the display area, which is caused because the writing into the pixels in the display area influences on the pixels in the non-display area, and hence it is possible to improve the quality of partial displaying, while restraining the power consumption.
    Type: Application
    Filed: December 11, 2002
    Publication date: July 3, 2003
    Inventors: Hajime Washio, Yasuyoshi Kaise, Sachio Tsujino, Kazuhiro Maeda, Keiji Takahashi, Yasushi Kubota, Toshiya Aoki
  • Publication number: 20030040085
    Abstract: Disclosed is a method for producing glycine, which comprises subjecting an aqueous solution of glycinonitrile to a hydrolysis reaction in a hydrolysis reaction system under the action of a microbial enzyme, thereby converting the glycinonitrile to glycine while by-producing ammonia, wherein the hydrolysis reaction system contains at least one organic impurity compound inhibiting the microbial enzyme, wherein the organic impurity compound has a molecular weight of 95 or more and contains at least one member selected from the group consisting of a nitrile group, a carboxyl group, an amide group, an amino group, a hydroxyl group and a trimethyleneamine structure, and wherein the hydrolysis reaction is performed under conditions wherein, during the hydrolysis reaction, the content of the organic impurity compound inhibiting the microbial enzyme in the hydrolysis reaction system is maintained at a level of 10% by weight or less, based on the weight of the hydrolysis reaction system.
    Type: Application
    Filed: June 17, 2002
    Publication date: February 27, 2003
    Inventors: Toshiya Aoki, Kiyoshi Kawakami, Kazumasa Otsubo
  • Publication number: 20030020681
    Abstract: A color signal correction circuit for correcting a color signal which displays data on each pixel of a display apparatus, comprising: a color signal input section for inputting a color signal of N bits (N is a natural number); an addition section for adding second and third color signals corresponding to first and second adjacent pixels which are adjacent to the predetermined pixel to obtain addition value data; a first comparison section for subtracting duplicated color signal data, which is obtained by duplicating a first color signal corresponding to the predetermined pixel, from the addition value data to obtain a difference value; a LSB determination section for determining an LSB according to the difference value; and a color signal generation section for adding N higher order bits of the duplicated color signal data and the LSB, so as to generate a color signal of (N+1) bits.
    Type: Application
    Filed: July 26, 2002
    Publication date: January 30, 2003
    Inventors: Kazuyuki Arita, Toshiya Aoki
  • Patent number: 6214954
    Abstract: Disclosed is an olefin polymerization catalyst comprising: a transition metal compound comprising one transition metal selected from the group consisting of Ti, Zr and Hf, and at least two ligands, wherein one ligand is a group having a cyclopentadienyl skeleton, and the remaining at least one ligand is a monovalent, bidentate, anionic chelating ligand having two coordinating atoms each coordinated to the transition metal, one of which atoms is selected from the group consisting of O, S, Se and Te, and the other of which atoms is selected from the group consisting of N, S, Se and Te, and wherein one of the remaining at least one ligand is optionally bonded to the group having a cyclopentadienyl skeleton through a bridging group. Also disclosed is a method for efficiently producing an olefin homopolymer or olefin copolymer by using this catalyst.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: April 10, 2001
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Yu Nitto, Tokitaka Kaneshima, Toshiya Aoki
  • Patent number: 5817724
    Abstract: Disclosed is an olefin polymerization method using a highly active catalyst comprising a transition metal selected from metals of Groups IIIA including the lanthanide series, IVA, VA, VIA, VIIA and VIII of the Periodic Table of the Elements, and ligands L.sup.1 and L.sup.2 bonded thereto, wherein a combination of L.sup.1 and L.sup.2 is (1) a combination of ligand L.sup.1 which is a group containing at least one phosphorus-containing group and ligand L.sup.2 which is a ligand having a .sigma.-bond, or a ligand having a .sigma.-bond and a bond selected from at least one .pi.-bond and at least one lone electron pair donative bond; (2) a combination of ligand L.sup.1 which is a 5-membered heterocyclic pentadentate ligand having one or more heteroatoms and ligand L.sup.2 which is a ligand having a .sigma.-bond, or a ligand having a .sigma.-bond and a bond selected from at least one .pi.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: October 6, 1998
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Toshiya Aoki, Tokitaka Kaneshima
  • Patent number: 4925971
    Abstract: A method for producing aliphatic O-arylurethanes by the reaction of an aliphatic primary amine with an aromatic hydroxyl compound and urea. Ammonia produced as a by-product in the reaction is removed during the reaction so that the ammonia concentration of the reaction solution is maintained at 2 wt % or less.
    Type: Grant
    Filed: December 2, 1988
    Date of Patent: May 15, 1990
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Toshiya Aoki, Hiroshi Ishida, Shinsuke Fukuoka