Patents by Inventor Hidemi Nakanishi

Hidemi Nakanishi 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).

  • Precision product container
    Patent number: 6537627
    Abstract: A precision product container of the present invention comprises a resin composition as a base material, which comprises a polycarbonate resin and an epoxy compound. Such precision product container can remarkably prevent products contained therein from being contaminated by chlorine and is suitable as a container for a precision product which is free from operational errors of the precision product contained therein when this product is subsequently assembled or processed.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: March 25, 2003
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Sadao Kumai, Tsutomu Suzuki, Tatsuaki Hirohata, Takehito Ushiki, Masaaki Miyamoto, Hidemi Nakanishi, Yoshitaka Shiraishi
  • PRECISION PRODUCT CONTAINER
    Publication number: 20020132073
    Abstract: A precision product container of the present invention comprises a resin composition as a base material, which comprises a polycarbonate resin and an epoxy compound. Such precision product container can remarkably prevent products contained therein from being contaminated by chlorine and is suitable as a container for a precision product which is free from operational errors of the precision product contained therein when this product is subsequently assembled or processed.
    Type: Application
    Filed: May 28, 1999
    Publication date: September 19, 2002
    Inventors: SADAO KUMAI, TSUTOMU SUZUKI, TATSUAKI HIROHATA, TAKEHITO USHIKI, MASAAKI MIYAMOTO, HIDEMI NAKANISHI, YOSHITAKA SHIRAISHI
  • Method for producing a block copolyamide
    Patent number: 5011893
    Abstract: A method for producing a block copolyamide, which comprises polycondensing a prepolymer prepared from a dimerized fatty acid and a diamine and having a number average molecular weight of from 1,000 to 50,000, with a polyamide material other than said prepolymer component or a prepolymer thereof.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: April 30, 1991
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Masaaki Miyamoto, Hidemi Nakanishi, Takayoshi Tanaka
  • Process for producing polyamide
    Patent number: 4937289
    Abstract: Disclosed herein is a process for producing a polyamide comprising polymerizing at least one monomer of polyamide in the presence of(1) a hydrocarbon polymer having at least one group selected from the group consisting of a carboxyl group, a derivative group of carboxylic acid, an amino group, and a hydroxyl group, or(2) a polymer produced by reacting the hydrocarbon polymer with a polyamide, or polymerizing at least one monomer of polyamide in the presence of the hydrocarbon polymer.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: June 26, 1990
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Shinichiro Koga, Masaaki Miyamoto, Hidemi Nakanishi
  • Polyamide resin
    Patent number: 4921932
    Abstract: A copolyamide resin containing a dimerized fatty acid as a copolymer component, which has (1) at least 25 equivalent %, based on the total number of terminal groups, of hydrocarbon groups having from 6 to 22 carbon atoms at its terminals, (2) a content of a dimerized fatty acid of from 0.1 to 40% by weight based on the total amount of the resin, and (3) a melt viscosity as measured at 240.degree. C. of from 2,000 to 15,000 poise.
    Type: Grant
    Filed: August 5, 1988
    Date of Patent: May 1, 1990
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Mitsuhiko Tamura, Masaaki Miyamoto, Hidemi Nakanishi, Takayoshi Tanaka
  • Process for producing polyamide
    Patent number: 4810753
    Abstract: Disclosed herein is a process for producing a polyamide comprising polymerizing at least one monomer of polyamide in the presence of(1) a hydrocarbon polymer having at least one group selected from the group consisting of a carboxyl group, a derivative group of carboxylic acid, an amino group, and a hydroxyl group, or(2) a polymer produced by reacting the hydrocarbon polymer with a polyamide, or polymerizing at least one monomer of polyamide in the presence of the hydrocarbon polymer.
    Type: Grant
    Filed: October 22, 1986
    Date of Patent: March 7, 1989
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Shinichiro Koga, Masaaki Miyamoto, Hidemi Nakanishi
  • Hydrocarbon terminated polyamide resin and process for producing the same
    Patent number: 4684713
    Abstract: Disclosed herein are a polyamide resin of a relative viscosity of from 2.5 to 6, having hydrocarbon group(s) of 6 to 22 carbon atoms as the end group(s) thereof, the number of the hydrocarbon group(s) being 40 to 100% of the total number of the end groups of the polyamide, and a process for producing the polyamide resin.
    Type: Grant
    Filed: January 2, 1986
    Date of Patent: August 4, 1987
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Katsuhisa Kohyama, Masaaki Miyamoto, Hidemi Nakanishi, Norimichi Koga