Patents by Inventor Yoshihito Isshiki

Yoshihito Isshiki 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).

  • PROCESS FOR PRODUCING SEMI-SOLIDIFIED SLURRY OF IRON ALLOY
    Publication number: 20120055284
    Abstract: A process for producing a semi-solidified slurry of an iron alloy including the steps of pouring a melt of an iron alloy into a semi-solidified slurry producing vessel 30 and cooling the melt therein to obtain a semi-solidified slurry having a crystallized solid phase and a residual liquid phase, wherein a hypereutectoid or hypoeutectic cast iron composition containing 0.8-4.3 wt. % C is used as a material, a melt of the composition is poured into the semi-solidified slurry producing vessel in a predetermined amount at a time, a temperature of the melt when poured into the semi-solidified slurry producing vessel is controlled to be not lower than a crystallization initiation temperature of the composition and not greater than a temperature that is 50° C. higher than the crystallization initiation temperature, and a cooling rate of the melt poured into the semi-solidified slurry producing vessel is controlled not to exceed 20° C. per minute.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 8, 2012
    Applicant: Kogi Corporation
    Inventors: Syuichi Shikai, Yasushi Fujinaga, Minoru Sasaki, Yoshihito Isshiki, Susumu Nishikawa
  • PROCESS AND APPARATUS FOR PRODUCING SEMI-SOLIDIFIED SLURRY OF IRON ALLOY
    Publication number: 20110193273
    Abstract: A process for producing a semi-solidified slurry of an iron alloy including the steps of pouring a melt of an iron alloy into a semi-solidified slurry producing vessel 30 and cooling the melt therein to obtain a semi-solidified slurry having a crystallized solid phase and a residual liquid phase, wherein a hypoeutectic cast iron composition is used as a material, a melt of the composition is poured into the semi-solidified slurry producing vessel 30 in a predetermined amount at a time, a temperature of the melt when poured into the semi-solidified slurry producing vessel 30 is controlled to be not lower than a crystallization initiation temperature of the composition and not greater than a temperature that is 50° C. higher than the crystallization initiation temperature, and a cooling rate of the melt poured into the semi-solidified slurry producing vessel 30 is controlled not to exceed 20° C. per minute.
    Type: Application
    Filed: March 21, 2011
    Publication date: August 11, 2011
    Applicant: Kogi Corporation
    Inventors: Syuichi SHIKAI, Yasushi Fujinaga, Minoru Sasaki, Yoshihito Isshiki, Susumu Nishikawa
  • PROCESS AND APPARATUS FOR PRODUCING SEMI-SOLIDIFIED SLURRY OF IRON ALLOY
    Publication number: 20100024927
    Abstract: A process for producing a semi-solidified slurry of an iron alloy including the steps of pouring a melt of an iron alloy into a semi-solidified slurry producing vessel 30 and cooling the melt therein to obtain a semi-solidified slurry having a crystallized solid phase and a residual liquid phase, wherein a hypoeutectic cast iron composition is used as a material, a melt of the composition is poured into the semi-solidified slurry producing vessel 30 in a predetermined amount at a time, a temperature of the melt when poured into the semi-solidified slurry producing vessel 30 is controlled to be not lower than a crystallization initiation temperature of the composition and not greater than a temperature that is 50° C. higher than the crystallization initiation temperature, and a cooling rate of the melt poured into the semi-solidified slurry producing vessel 30 is controlled not to exceed 20° C. per minute.
    Type: Application
    Filed: February 6, 2007
    Publication date: February 4, 2010
    Inventors: Syuichi Shikai, Yasushi Fujinaga, Minoru Sasaki, Yoshihito Isshiki, Susumu Nishikawa