Patents by Inventor Atsushi Kondoh

Atsushi Kondoh 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).

  • BORONIC ACID COMPOUND AND METHOD FOR PRODUCING SAME
    Publication number: 20240124496
    Abstract: The invention provides a method for producing radiolabeled tyrosine derivatives with good purity and stability, by a safe method suitable for industrial production of pharmaceuticals. The invention relates to a method for producing Compound (5) and Radiolabeled Compound (6) as follows: wherein each symbol is as defined in the description.
    Type: Application
    Filed: March 24, 2022
    Publication date: April 18, 2024
    Applicant: OSAKA UNIVERSITY
    Inventors: Yoshifumi SHIRAKAMI, Kazuko KANEDA, Yuichiro KADONAGA, Tadashi WATABE, Atsushi TOYOSHIMA, Koichi FUKASE, Atsushi SHINOHARA, Toshio YAMANAKA, Yutaka KONDOH
  • Method for producing piston for internal-combustion engine
    Patent number: 8240039
    Abstract: A method is provided for producing a piston for an internal-combustion engine of the structure in which a piston body which is composed of a crown having a groove for fitting a piston ring into an outer circumference surface and a skirt in connection with the bottom of the crown is provided with an annular cavity for flowing cooling liquid on an inside of the groove, the method comprising the steps of: forming the crown and the skirt individually; forming an annular groove for the annular cavity in the inner bottom of the crown and an annular rib in connection with the open edge of the annular groove before the crown and the skirt are joined together; bending the rib toward the opening of the annular groove by application of pressure to close the opening of the annular groove to thereby form the annular cavity; and joining the crown and the skirt together.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: August 14, 2012
    Assignees: Riken Forge Co., Ltd, Art Metal Mfg. Co., Ltd.
    Inventors: Atsushi Kondoh, Osamu Tanaka, Shoji Kanai, Takaaki Komatsu
  • METHOD FOR PRODUCING PISTON FOR INTERNAL-COMBUSTION ENGINE
    Publication number: 20090071001
    Abstract: A method is provided for producing a piston for an internal-combustion engine of the structure in which a piston body which is composed of a crown having a groove for fitting a piston ring into an outer circumference surface and a skirt in connection with the bottom of the crown is provided with an annular cavity for flowing cooling liquid on an inside of the groove, the method comprising the steps of: forming the crown and the skirt individually; forming an annular groove for the annular cavity in the inner bottom of the crown and an annular rib in connection with the open edge of the annular groove before the crown and the skirt are joined together; bending the rib toward the opening of the annular groove by application of pressure to close the opening of the annular groove to thereby form the annular cavity; and joining the crown and the skirt together.
    Type: Application
    Filed: September 11, 2008
    Publication date: March 19, 2009
    Applicants: RIKEN FORGE CO., LTD., ART METAL MFG. CO., LTD.
    Inventors: Atsushi KONDOH, Osamu TANAKA, Shoji KANAI, Takaaki KOMATSU