Patents by Inventor Noriaki Ohba

Noriaki Ohba 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: 5229966
    Abstract: As latch circuit is supplied with a readout control signal for reading out data and a reference voltage for determining "1" or "0" of address data. The latch circuit latches address data for selecting a memory cell array according to the readout control signal and the reference voltage. A reference voltage generation circuit for generating the reference voltage includes resistors connected between first and second power sources and an output node which is connected between the resistors and from which the reference voltage is output. A transistor serving as an interruption circuit for interrupting the current path is connected between the first power source and the resistor. The transistor is turned off to interrupt a through current flowing between the first and second power sources when the readout signal is set in the stand-by state.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: July 20, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takashi Ohsawa, Noriaki Ohba
  • Patent number: 5015262
    Abstract: Cloth is dyed using a reactive dye, an alkaline substance and a leveling agent. The leveling agent is one or more substances selected from the group consisting of phospholipids obtained from animals or plants, compounds having the formula I and compounds having the formula II: ##STR1## wherein R.sub.1 and R.sub.3 each denotes alkyl, alkenyl, hydroxyalkyl, or M, with the proviso that both of R.sub.1 and R.sub.3 are not M simultaneously; R.sub.2 denotes alkylene having 2 to 4 carbon atoms; 1 and m each denote 0 or an integer of at least 1; and M denotes alkali metal or hydrogen, ##STR2## wherein R.sub.4 denotes alkyl, alkenyl, hydroxyalkyl, straight chain, hydroxy-substituted alkenyloxy or branched chain, hydroxy-substituted alkenyloxy; X and Y each denote hydrogen, alkoxy, alkyl, or ##STR3## wherein M denotes alkali metal or hydrogen; and n denotes an integer of at least 1.
    Type: Grant
    Filed: December 26, 1988
    Date of Patent: May 14, 1991
    Assignee: Nihon Surfactant Kogyo K.K.
    Inventors: Noriaki Ohba, Yujin Tabata, Tateyuki Nagatomi
  • Patent number: 4976743
    Abstract: Fiber articles are uniformly dyed with use of a dyeing auxiliary composition which comprises an anionic surfactant of the alpha-hydroxysulfonic acid type and an organic polybasic polymer and has a pH of 9 or higher.
    Type: Grant
    Filed: March 31, 1989
    Date of Patent: December 11, 1990
    Assignee: Nihon Surfactant Kogyo K.K.
    Inventors: Noriaki Ohba, Yujin Tabata, Masaaki Nagatsuka, Tateyuki Nagatomi, Helmut Klicker