Patents by Inventor Hiroshi Yachi

Hiroshi Yachi 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).

  • POWER TRANSMISSION DEVICE FOR WORK VEHICLE
    Publication number: 20220397189
    Abstract: A power transmission device for a work vehicle includes: a transmission case; a gear transmission contained in the transmission case and configured to receive motive power from a power source; a differential mechanism contained in the transmission case and configured to receive motive power from the gear transmission and transmit the motive power to a left wheel and a right wheel; and a gear cover covering a lower portion of a ring gear of the differential mechanism.
    Type: Application
    Filed: June 6, 2022
    Publication date: December 15, 2022
    Applicant: KUBOTA CORPORATION
    Inventors: Atsushi JINNAI, Sota KITAMURA, Koichi KURODA, Hiroshi YACHI
  • Lubricant base oil and method of producing the same
    Patent number: 8012342
    Abstract: This invention relates to lubricant base oil having high viscosity indexes and low pour points, and particularly to lubricant base oil consisting essentially of a normal paraffin and an isoparaffin, wherein (a) an average carbon number Nc in one molecule is not less than 28 but not more than 40, and (b) an average branch number Nb in one molecule calculated from a ratio of CH3 carbon to total carbon determined by 13C-NMR analysis and the average carbon number Nc in one molecule is not more than (0.2Nc?3.1) but not less than 1.5.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: September 6, 2011
    Assignee: Japan Energy Corporation
    Inventors: Manabu Kobayashi, Katsuaki Ishida, Masayuki Saito, Hiroshi Yachi
  • Lubricant base oil and method of producing the same
    Publication number: 20070138052
    Abstract: This invention relates to lubricant base oil having high viscosity indexes and low pour points, and particularly to lubricant base oil consisting essentially of a normal paraffin and an isoparaffin, wherein (a) an average carbon number Nc in one molecule is not less than 28 but not more than 40, and (b) an average branch number Nb in one molecule calculated from a ratio of CH3 carbon to total carbon determined by 13C-NMR analysis and the average carbon number Nc in one molecule is not more than (0.2Nc?3.1) but not less than 1.5.
    Type: Application
    Filed: March 18, 2005
    Publication date: June 21, 2007
    Applicant: Japan Energy Corporation
    Inventors: Manabu Kobayashi, Katsuaki Ishida, Masayuki Saito, Hiroshi Yachi