Patents by Inventor Fumio Ikesue

Fumio Ikesue 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).

  • Water-based lubricants containing sulfur as a coordinating atom and uses thereof
    Patent number: 6852678
    Abstract: An aqueous lubricant is provided which by simple application onto metal surfaces forms lubricating films required for heavy working of metals, and which contains no oil. The aqueous lubricant is prepared by suspending or dispersing a metal chelate compound in water with a surfactant or the like. The metal chelate compound has a polydentate or multidentate chelate ligand, in which at least one of the coordinating atoms is sulfur, coordinated to the coordination site of at least one metal species selected from among zinc, manganese, iron, molybdenum, tin and antimony. When applied onto metal surfaces, the aqueous lubricant forms effective lubricating films on the metal surfaces. The lubricating films contain sulfur as coordinating atoms and therefore, extreme pressure produces sulfur radicals through decomposition by tribo-chemical reactions. The sulfur radicals are highly reactive and react rapidly with the metal surface to produce metal sulfides with a lubricating effect.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: February 8, 2005
    Assignees: MEC International Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Heijiro Ojima, Masahiko Takeuchi, Fumio Ikesue, Noritoshi Kaskimura, Fumio Kawahara, Mitsuru Tomono
  • Water-based lubricants containing sulfur as a coordinating atom and uses thereof
    Publication number: 20020111278
    Abstract: An aqueous lubricant is provided which by simple application onto metal surfaces forms lubricating films required for heavy working of metals, and which contains no oil. The aqueous lubricant is prepared by suspending or dispersing a metal chelate compound in water with a surfactant or the like. The metal chelate compound has a polydentate or multidentate chelate ligand, in which at least one of the coordinating atoms is sulfur, coordinated to the coordination site of at least one metal species selected from among zinc, manganese, iron, molybdenum, tin and antimony. When applied onto metal surfaces, the aqueous lubricant forms effective lubricating films on the metal surfaces. The lubricating films contain sulfur as coordinating atoms and therefore, extreme pressure produces sulfur radicals through decomposition by tribo-chemical reactions. The sulfur radicals are highly reactive and react rapidly with the metal surface to produce metal sulfides with a lubricating effect.
    Type: Application
    Filed: November 19, 2001
    Publication date: August 15, 2002
    Inventors: Heijiro Ojima, Masahiko Takeuchi, Fumio Ikesue, Noritoshi Kashimura, Fumio Kawahara, Mitsuru Tomono