Patents by Inventor Mitsuhiro Maehara

Mitsuhiro Maehara 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).

  • Roller-type rocker arm
    Patent number: 10280813
    Abstract: A roller-type rocker arm had a function for transmitting a rotational motion of a cam to an intake and exhaust valve. The roller-type rocker arm includes a roller shaft, an inner ring roller slidably attached to an outer circumference surface of the roller shaft, and an outer ring roller slidably attached to an outer circumference surface of the inner ring roller. The inner ring roller is made of a resin material.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: May 7, 2019
    Assignee: Kabushiki Kaisha Riken
    Inventor: Mitsuhiro Maehara
  • Roller type rocker arm
    Patent number: 10119428
    Abstract: A roller-type rocker arm includes a roller shaft. A sliding surface of an outer circumference surface of the roller shaft includes a number of dimples. An inner ring roller is slidably attached to the outer circumference surface of the roller shaft. An inner circumference surface and an outer circumference surface of the inner ring roller include a number of dimples. An outer ring roller is slidably attached to the outer circumference surface of the inner ring roller. An inner circumference surface of the outer ring roller includes a number of dimples.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: November 6, 2018
    Assignee: Kabushiki Kaisha Riken
    Inventor: Mitsuhiro Maehara
  • Roller-Type Rocker Arm
    Publication number: 20170284233
    Abstract: A roller-type rocker arm had a function for transmitting a rotational motion of a cam to an intake and exhaust valve. The roller-type rocker arm includes a roller shaft, an inner ring roller slidably attached to an outer circumference surface of the roller shaft, and an outer ring roller slidably attached to an outer circumference surface of the inner ring roller. The inner ring roller is made of a resin material.
    Type: Application
    Filed: April 14, 2015
    Publication date: October 5, 2017
    Applicant: Kabushiki Kaisha Riken
    Inventor: Mitsuhiro Maehara
  • Roller Type Rocker Arm
    Publication number: 20170044936
    Abstract: A roller-type rocker arm includes a roller shaft. A sliding surface of an outer circumference surface of the roller shaft includes a number of dimples. An inner ring roller is slidably attached to the outer circumference surface of the roller shaft. An inner circumference surface and an outer circumference surface of the inner ring roller include a number of dimples. An outer ring roller is slidably attached to the outer circumference surface of the inner ring roller. An inner circumference surface of the outer ring roller includes a number of dimples.
    Type: Application
    Filed: April 14, 2015
    Publication date: February 16, 2017
    Inventor: Mitsuhiro Maehara
  • Morpholinone derivatives and method of use
    Patent number: 4237132
    Abstract: A series of new 4,6-disubstituted 2-morpholinone derivatives were prepared either by a reaction of corresponding epoxide derivatives with phenylglycine derivatives or by the reaction of isopropanol derivatives with carboxylic acid derivatives. The new morpholinone derivatives are useful for the prevention or the treatment of arteriosclerosis.
    Type: Grant
    Filed: June 4, 1976
    Date of Patent: December 2, 1980
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Hiromu Murai, Katsuya Ohata, Hiroshi Enomoto, Shoichi Chokai, Mitsuhiro Maehara, Katsuhide Saito, Takayuki Ozaki
  • Substituted N-(carboxymethyl)-3-aminopropan-2-ol derivatives
    Patent number: 4064252
    Abstract: New carboxylic acid derivatives are proposed for use as agents in the treatment or prevention of arteriosclerosis. 1-(p-chlorophenoxy)-3-(N-phenyl-N-carbomethoxymethylamino)-2-propanol is a typical compound.
    Type: Grant
    Filed: June 4, 1976
    Date of Patent: December 20, 1977
    Assignee: Nippon Shinyaku Co., Ltd.
    Inventors: Hiromu Murai, Katsuya Ohata, Hiroshi Enomoto, Shoichi Chokai, Mitsuhiro Maehara, Katsuhide Saito, Takayuki Ozaki