Patents by Inventor Takenori Ikeda

Takenori Ikeda 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).

  • Fuel cell separator manufacturing method and fuel cell separator
    Publication number: 20040028959
    Abstract: A fuel cell separator having hydrophilic areas and water-repelling areas is manufactured by selectively charging a hydrophilic molding material and a water-repellent molding material into a mold and integrally compression molding the charged materials. The process can be used for the low-cost, high-volume production of fuel cell separators. Even separators having a complex channel geometry can be easily and selectively conferred with hydrophilicity and water-repellency, and can be provided with a uniform density and uniform pores.
    Type: Application
    Filed: August 12, 2003
    Publication date: February 12, 2004
    Inventors: Ayumi Horiuchi, Takenori Ikeda, Kazuo Saito
  • Polyvinyl chloride resin composition
    Patent number: 5055522
    Abstract: A polyvinyl chloride resin composition is disclosed, which comprises (a) a vinyl chloride homo- or copolymer, (B) a plasticizer, (C) a blocked urethane prepolymer as essential components, the blocked urethane prepolymer (C) being a prepolymer of isocyanurate type polyisocyanate prepared from an alkylene diisocyanate which may contain in the alkylene chain thereof a substituted or unsubstituted cyclohexane or aromatic ring.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: October 8, 1991
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Takenori Ikeda, Mitsuru Ohtsubo, Shunji Arimoto, Noboru Okoshi
  • Pigment paste
    Patent number: 4710230
    Abstract: A pigment paste comprising a pigment and as a pigment dispersing agent, a compound having a basic structure represented by the following formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group, and R.sub.2 represents a residue of a diol or polyol, or a mixture of said pigment dispersing agent and an organic solvent, said pigment being dispersed in said pigment dispersing agent or in said mixture.
    Type: Grant
    Filed: April 21, 1986
    Date of Patent: December 1, 1987
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Noboru Okoshi, Masatoshi Motomura, Mitsuru Ohtsubo, Takenori Ikeda
  • Coating resin composition
    Patent number: 4533716
    Abstract: A coating resin composition consisting essentially of(A) a triazine-type resin obtained by co-condensing a triazine-type amino compound represented by the general formula ##STR1## wherein X is hydrogen, methyl, ethyl, propyl, phenyl or amino, formaldehyde and a polyol and as required, a monohydric alcohol, and(B) a polyisocyanate,the solids weight ratio of (A) to (B) being from 5:95 to 95:5.
    Type: Grant
    Filed: August 3, 1984
    Date of Patent: August 6, 1985
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Noboru Okoshi, Takenori Ikeda
  • Pigment paste
    Patent number: RE33853
    Abstract: A pigment paste comprising a pigment and as a pigment dispersing agent, a compound having a basic structure represented by the following formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group, and R.sub.2 represents a residue of a diol or polyol, or a mixture of said pigment dispersing agent and an organic solvent, said pigment being dispersed in said pigment dispersing agent or in said mixture.
    Type: Grant
    Filed: December 18, 1989
    Date of Patent: March 24, 1992
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Noboru Okoshi, Masatoshi Motomura, Mitsuru Ohtsubo, Takenori Ikeda