Patents by Inventor Katsuhisa Hirayama

Katsuhisa Hirayama 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).

  • Degreasing method for aluminium hard foil, aluminium hard foil, aluminium hard foil electrode member, and lithium ion secondary battery using said member
    Publication number: 20090269609
    Abstract: An aluminum hard foil is degreased without reducing the hardness to improve the coating performance of coating material. A foil-rolled aluminum foil is subjected to a low-temperature heat treatment for holding the aluminum foil at 80 to 160° C. for 1 hour or more. The low-temperature heat treatment is preferably performed by subjecting the aluminum foil to batch processing with the aluminum foil coiled.
    Type: Application
    Filed: January 7, 2005
    Publication date: October 29, 2009
    Applicant: SHOWA DENKO K.K.
    Inventor: Katsuhisa Hirayama
  • Device for sampling steel material
    Patent number: 4942773
    Abstract: A cutting device for collecting a quantoback analysis sample in a hot state from a preferred position of a continuously cast steel piece is disclosed. According to this invention, a dish like recess is cut on the surface of a cast steel piece while leaving a center column, then the root of the center column is cut and the cut free portion taken out as a sample.
    Type: Grant
    Filed: March 21, 1989
    Date of Patent: July 24, 1990
    Assignees: Kawasaki Steel Corp., Nippon Air Brake Co., Ltd.
    Inventors: Kaizo Okamoto, Akira Ichihara, Akimune Sato, Kenji Hirata, Katsuhisa Hirayama, Eiji Hina, Shigeru Nakaji, Minoru Sakamoto, Takashi Tanaka, Keizo Shimizu
  • Method of sampling steel material and a device therefor
    Patent number: 4833930
    Abstract: A method and a device for collecting a quantoback analysis sample in hot state from a preferred position of a continuously cast steel piece are disclosed. According to this invention, a dish like recess is cut on the surface of cast steel piece while leaving a center column, then the root of left center column is root cut and taken out as sample. A cutting device and a way for accessing the cutting device are presented for operating this process.
    Type: Grant
    Filed: July 28, 1987
    Date of Patent: May 30, 1989
    Assignees: Kawasaki Steel Corp., Nippon Air Brake Co., Ltd.
    Inventors: Kaizo Okamoto, Akira Ichihara, Akimune Sato, Kenji Hirata, Katsuhisa Hirayama, Eiji Hina, Shigeru Makaji, Minoru Sakamoto, Takashi Tanaka, Keizo Shimizu
  • Methods for controlling blowing, controlling the slag formation and predicting slopping in the blowing of molten pig iron in LD converter
    Patent number: 4398948
    Abstract: Methods for controlling blowing, controlling the slag formation and predicting sloping in the blowing of molten pig iron in LD converter are carried out by measuring acceleration of the horizontal movement of a detector, such as a lance provided in the converter, which is caused only by the slag impinging against the lance, by an accelerator, integrating the measured values to obtain integrated average values at every several seconds, and programming the integrated average values in a computer.
    Type: Grant
    Filed: May 28, 1981
    Date of Patent: August 16, 1983
    Assignee: Kawasaki Steel Corporation
    Inventors: Kanji Emoto, Masayuki Onishi, Hirosuke Yamada, Katsuhisa Hirayama, Hideshi Ohzu, Masakatsu Ogawa, Yasuo Masuda