Patents by Inventor Masayuki Sumiyoshi

Masayuki Sumiyoshi 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).

  • Patent number: 6211681
    Abstract: A power source monitoring apparatus for monitoring a state of a subject power source which consists of at least one of a plurality of electric power sources in an electric system wherein a load device having at least one electrically operated load is electrically connected to the power sources, the monitoring device apparatus a detecting portion which detects a voltage and/or a current of at least one of the load device and the plurality of electric power sources, and a diagnosing device which diagnoses the subject power source for an abnormality on the basis of an output of the detecting portion, while the electric system is placed in a power supply state wherein an electric power is permitted to be supplied from only the subject power source to the load device.
    Type: Grant
    Filed: May 2, 2000
    Date of Patent: April 3, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazunori Kagawa, Tsuyoshi Yano, Masayuki Sumiyoshi, Yoshiaki Kominami, Akihiro Otomo, Eiji Nakamura
  • Patent number: 5686032
    Abstract: A process and an apparatus for forming a gasket directly on a workpiece having a joining surface which has an annular gasket-fixing groove, wherein a mold having a gasket-forming groove which cooperates with the gasket-fixing groove to define a cavity for forming the gasket is clamped to the joining surface of the workpiece, and a material is injected into the cavity through an injection passage which is formed through the mold and which communicates with the gasket-forming groove. The material is cured into the gasket, and the mold is removed from the workpiece. The mold may have two elastic sealing members disposed on inner and outer sides of the gasket-forming groove, respectively, so as to extend along the gasket-forming groove, and provide pressure-tight sealing of the cavity when the body is placed on the workpiece such that the sealing members are held in elastic pressure-tight contact with the joining surface.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: November 11, 1997
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tatsuya Mizobe, Masayuki Sumiyoshi, Hiroyuki Miwa
  • Patent number: 5665243
    Abstract: Disclosed herein is a technique of removing metal contained in a solution through chelation, which makes it possible to preclude undesired aggregation and permit effective aggregation through an aggregating process. A surface active agent containing a hydrophobic group, a hydrophilic group and a chelating group is added to the solution to be processed, and subsequently an aggregating process is carried out. The chelating group chelates metal, the hydrophilic group prevents undesired aggregation, and the hydrophobic group is effectively aggregated in the aggregating process. Various uses are possible by selecting the charge of ligand.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: September 9, 1997
    Assignees: Toyota Jidosha Kabushiki Kaisha, MEC International Corporation, Heijiro Ojima
    Inventors: Naoki Abe, Koji Mizuno, Masayuki Sumiyoshi, Katsuya Murakami, Kojiro Murayama, Koichi Sugiura, Fumio Kawahara, Mitsuru Tomoto, Heijiro Ojima
  • Patent number: 5650056
    Abstract: An apparatus for removing metal contained in a solution through chelation which includes a means for adding a surface active agent containing a hydrophobic group, a hydrophilic group and a chelating group to a metal containing solution held within a metal solution accommodating means. An electric field applying means is adapted to apply an electric field to the solution containing means and further means is provided for separating an aggregate from the metal contained solution.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: July 22, 1997
    Assignees: Toyota Jidosha Kabushiki Kaisha, Mec International Corporation, Heijiro Ojima
    Inventors: Naoki Abe, Koji Mizuno, Masayuki Sumiyoshi, Katsuya Murakami, Kojiro Murayama, Koichi Sugiura, Fumio Kawahara, Mitsuru Tomono, Heijiro Ojima
  • Patent number: 5587060
    Abstract: Disclosed herein is a technique of removing metal contained in a solution through chelation, which makes it possible to preclude undesired aggregation and permit effective aggregation through an aggregating process. A surface active agent containing a hydrophobic group, a hydrophilic group and a chelating group is added to the solution to be processed, and subsequently an aggregating process is carried out. The chelating group chelates metal, the hydrophilic group prevents undesired aggregation, and the hydrophobic group is effectively aggregated in the aggregating process. Various uses are possible by selecting the charge of ligand.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: December 24, 1996
    Assignees: Toyota Jidosha Kabushiki Kaisha, MEC International Corporation, Heijiro Ojima
    Inventors: Naoki Abe, Koji Mizuno, Masayuki Sumiyoshi, Katsuya Murakami, Kojiro Murayama, Koichi Sugiura, Fumio Kawahara, Mitsuru Tomono, Heijiro Ojima