Patents by Inventor Masayoshi Oba

Masayoshi Oba 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).

  • Publication number: 20070092725
    Abstract: The invention provides: a process for producing zeolite-coated glass fibers in which a silicon compound and an aluminum compound can be simultaneously imparted to glass fibers through one immersion treatment to conduct a zeolite-yielding reaction; and a fibrous structure produced by the process. The process for producing zeolite-coated glass fibers of the invention comprises treating glass fibers with an aqueous solution which contains a silicon compound, an aluminum compound, and sodium hydroxide each dissolved therein, the total amount (Y) of the silicon compound and the aluminum compound in terms of silicon oxide and aluminum oxide, respectively, being 0.0703-1.6403% by mass and the sodium hydroxide concentration (X) in the aqueous solution being 4-15% by mass, the relationship between the total amount (Y) in terms of the sum of silicon oxide and aluminum oxide and the sodium hydroxide concentration (X) being represented by the following expression (I). Y?0.1427X?0.
    Type: Application
    Filed: October 18, 2006
    Publication date: April 26, 2007
    Applicant: NISSHINBO INDUSTRIES, INC.
    Inventors: Masayoshi Oba, Hiroshi Inoue, Jiro Fukuda
  • Patent number: 6203577
    Abstract: A method for shrink-proofing a cellulosic fiber textile that involves liquid ammonia treatment, hot water or alkali treatment under tension or under no tension, and with optional resin treatment.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: March 20, 2001
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Yuichi Yanai, Takayuki Hirai, Masayoshi Oba, Kiyoshi Ikeda, Yasushi Takagi, Takeo Ishikawa, Kazuhiko Harada, Hirotaka Iida, Ryuichi Ito, Osamu Hasegawa
  • Patent number: 6042616
    Abstract: A method for finishing a cellulose fiber-containing textile fabric comprises treating a cellulose fiber-containing textile fabric with liquid ammonia, applying a resin finishing agent to said fabric, subjecting subsequently to either or both of a hot calendering treatment and a heat treatment, and finally treating the resultant fabric with hot water. The resultant fabric keeps its shape stability including a crease or shrink resistance when washed, without involving any problem on residual formaldehyde.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: March 28, 2000
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Yuichi Yanai, Masayoshi Oba, Kazuhiko Ichimura, Yasushi Takagi, Kazuhiko Harada
  • Patent number: 5910279
    Abstract: Creases are formed in a cellulosic fiber textile by treating the fiber textile with liquid ammonia, creasing the fiber textile, and treating the fiber textile with hot water or alkaline solution substantially simultaneous with or subsequent to the creasing step. Fully durable creases are formed in the cellulosic fiber textile without detracting from strength.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: June 8, 1999
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Yuichi Yanai, Takayuki Hirai, Masayoshi Oba, Kiyoshi Ikeda, Yasushi Takagi, Takeo Ishikawa, Kazuhiko Harada, Hirotaka Iida, Kazuhiko Arakawa, Masazumi Ii, Yuzo Nakamura
  • Patent number: 5879410
    Abstract: A process for resin finishing textile containing cellulosic fiber comprises the steps of using a resin finishing agent chiefly containing a cellulose-reactive N-methylol compound having two or more functional groups and a reaction catalyst, mainly reacting only one functional group of the cellulose-reactive N-methylol compound with cellulose, water washing, again imparting reaction catalyst, drying, garment making, and heat treating. The process eliminates the conventional postcuring method drawbacks of loss of color fastness and discoloration owing to dye decomposition and formaldehyde increase by unreacted resin and residual reaction catalyst during long storage before heat treatment, and simultaneously achieves high crease-resistant property, shrink resistance, good feeling, excellent pleating property, and anti-puckering property.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: March 9, 1999
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Yuichi Yanai, Masayoshi Oba, Yasushi Takagi, Tadashi Isogai