Patents by Inventor Kazuyuki Yoshimoto

Kazuyuki Yoshimoto 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).

  • Light-alloy casting heat treatment method
    Patent number: 6214136
    Abstract: The film boiling state of a refrigerant is maintained for a time longer than in the prior art by t to lower the nuclear boiling start temperature to a temperature at which the material proof strength of a work exceeds thermal stress, thereby lowering the cooling rate of the work. In addition, by controlling the cooling rate in hardening, the film boiling state of the refrigerant is maintained to a temperature at which the material proof strength exceeds thermal stress, thereby cooling the work at a temperature equal to or higher than the critical cooling rate of the work.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: April 10, 2001
    Assignee: Mazda Motor Corporation
    Inventors: Kazuyuki Yoshimoto, Ryoji Abe, Yukihiro Sugimoto, Fuminori Ishimura, Yukio Yamamoto, Nobuyuki Oda, Yukiyoshi Fukuda, Toshio Miyatani, Hiroshi Kodama, Akihiro Nakano
  • Metallic porous product and composite product thereof and method of producing the same
    Patent number: 6103397
    Abstract: A metallic porous product is produced by applying a slurry of a mixture of skeleton constituent metal particles and property modifying particles to an inflammable porous foam, burning the inflammable porous foam having open pores by heat to provide a metallic skeleton structure, and sintering the metallic skeleton structure.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: August 15, 2000
    Assignee: Mazda Motor Corporation
    Inventors: Yukihiro Sugimoto, Nobuyuki Oda, Kazuyuki Yoshimoto, Makoto Fujita, Yukio Yamamoto
  • Hydrogen gas supply systems for hydrogen engine and method of supplying hydrogen gas to the hydrogen gas supply system
    Patent number: 5462021
    Abstract: A hydrogen gas supply system for a hydrogen engine has a hydrogen gas cartridge which is detachably attached to the engine. The cartridge has a casing in which hydrogen gas storage alloy and a heating medium passage for heating the hydrogen gas storage alloy are housed. The engine is provided with a hydrogen gas supply passage which leads hydrogen gas discharged from the hydrogen gas cartridge to the engine, a heating medium supply passage which supplies heating medium to the heating medium passage in the hydrogen gas cartridge and a heating medium return passage through which the heating medium flows out of the hydrogen gas cartridge is returned. The hydrogen gas cartridge is provided with a hydrogen gas takeout port, a heating medium inlet and a heating medium outlet.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: October 31, 1995
    Assignee: Mazda Motor Corporation
    Inventors: Takanori Minami, Noriaki Shiraishi, Tsutomu Shimizu, Kenji Takamuku, Yoshinori Tsushio, Yoshio Mizushima, Kazuyuki Yoshimoto, Masaki Kadokura
  • Method for producing hydrogen storage alloy resistant to micronization
    Patent number: 5223054
    Abstract: Hydrogen storage alloy includes porous base hydrogen storage alloy and Mg which is fused, conjugated with the base hydrogen storage alloy and diffused in the base hydrogen storage alloy.
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: June 29, 1993
    Assignee: Mazda Motor Corporation
    Inventors: Kazuyuki Yoshimoto, Toru Ogasawara, Eiji Hiraki, Shinichi Tanioka