Patents by Inventor Hirokazu Hamada

Hirokazu Hamada 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: 20160246211
    Abstract: To provide a conductive roller which can attain a desired conductivity and low compression set and which can suppress production material cost. A conductive roller having a core and a conductive elastic layer disposed on the core, wherein the conductive elastic layer is formed of a vulcanized product of a rubber blend base containing NBR and ECO with a peroxide vulcanizing agent; the NBR is a low-nitrile type rubber having an acrylonitrile content lower than 25 mass %; and the ratio by mass of NBR to ECO, NBR:ECO, satisfies the following relationship (1): 40:60 to 75:25 . . . (1).
    Type: Application
    Filed: February 23, 2016
    Publication date: August 25, 2016
    Inventors: Hirokazu HAMADA, Lei WANG
  • Patent number: 6510140
    Abstract: In order to easily understand a synthetic quality degree, a ratio of each of parameters in the entirety, etc. in an ATM line to be evaluated, cell data is received from the ATM line and abnormal cells are detected by a misinserted cell detection section, a lost cell detection section and an errored cell detection section. The numbers of abnormal cells occurring in the same time period are counted by a misinserted cell count section, a lost cell count section and an errored cell count section. A total number graph display section displays a strip-shaped total number graph, which corresponds in length to a sum of count results of the respective count sections, successively on a time-axis of a screen of a display device. An items display section discriminatively displays a plurality of regions into which the total number graph is divided such that the regions have lengths corresponding to the numbers of abnormal cells counted by the respective count sections.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: January 21, 2003
    Assignee: Anritsu Corporation
    Inventor: Hirokazu Hamada
  • Patent number: 5856284
    Abstract: A detergent composition comprising:(A) glycerol derivative having the following Formula (I) ##STR1## (B) a water-soluble polyhydric alcohol; and (C) at least one surfactant selected from the group consisting of an anionic surfactant, wherein component (A) and component (C) are in a ratio of from 2:1 to 1:100 by weight. When the detergent composition is used to clean skin, the skin remains moisturized after cleaning without stickiness or tackiness and without excess degreasing or dryness.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: January 5, 1999
    Assignee: Kao Corporation
    Inventors: Hirokazu Hamada, Kiyoko Nakagaki, Masaki Itabashi
  • Patent number: 5681804
    Abstract: A detergent composition comprising:(A) glycerol derivative having the following Formula (I) ##STR1## (B) a water-soluble polyhydric alcohol; and (C) at least one surfactant selected from the group consisting of an anionic surfactant, wherein component (A) and component (C) are in a ratio of from 2:1 to 1:100 by weight. When the detergent composition is used to clean skin, the skin remains moisturized after cleaning without stickiness or tackiness and without excess degreasing or dryness.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: October 28, 1997
    Assignee: Kao Corporation
    Inventors: Hirokazu Hamada, Kiyoko Nakagaki, Masaki Itabashi
  • Patent number: 5496492
    Abstract: A detergent composition comprising:(A) glycerol derivative having the following Formula (I) ##STR1## (B) a water-soluble polyhydric alcohol; and (C) at least one surfactant selected from the group consisting of an anionic surfactant, wherein component (A) and component (C) are in a ratio of from 2:1 to 1:100 by weight. When the detergent composition is used to clean skin, the skin remains moisturized after cleaning without stickiness or tackiness and without excess degreasing or dryness.
    Type: Grant
    Filed: April 21, 1994
    Date of Patent: March 5, 1996
    Assignee: Kao Corporation
    Inventors: Hirokazu Hamada, Kiyoko Nakagaki, Masaki Itabashi
  • Patent number: 5480905
    Abstract: Compounds represented by the general formula (I): ##STR1## (where R.sub.1 is an admantyl group; R.sub.2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or an aralkyl group; R.sub.3 is a 1,4-benzodioxane ring that may optionally have 1-4 substituents selected from among a lower alkyl group, a lower alkoxy group, a halogen atom, an amino group, a hydroxyl group and a lower alkylcarbonyl group; n is an integer of 1-4) or a salt thereof. These compounds have both antianxiety and antidepressant actions and yet they cause less side effects. Therefore, they can be used as excellent drugs that are highly effective in the prevention and treatment of various diseases such as neurosis. psychosomatic diseases, autonomic imbalance and depression.
    Type: Grant
    Filed: January 6, 1995
    Date of Patent: January 2, 1996
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Akira Koda, Tatsuo Miyauchi, Yoshitake Kanbe, Hirokazu Hamada