Patents by Inventor Hiroyasu Matsumoto

Hiroyasu Matsumoto 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: 6874196
    Abstract: A reed cleaning apparatus is provided with rotary brushes (16) supported on a carriage (3) that travels along the upper bar (2) of a reed for rotation about an axis parallel to guide groove (17) formed in the reed. Flexible shafts (15) are used to transmit rotative force to the rotary brushes (16) to form the reed cleaning apparatus in compact construction, to dispose the rotary brushes close to the reed, to form the rotary brushes in a small diameter, and to enable cleaning the reed with warp yarns extended through the reed by depressing the warp yarns. The rotary brushes are disposed at the opposite longitudinal ends, respectively, of the carriage (3) to enable the reed cleaning apparatus to clean the entire length of the reed.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: April 5, 2005
    Assignees: Takayama Reed Co., Ltd., Tagawa Kikai Ltd.
    Inventors: Takatsugu Kato, Hiroyasu Matsumoto
  • Publication number: 20040034960
    Abstract: A reed cleaning apparatus is provided with rotary brushes (16) supported on a carriage (3) that travels along the upper bar (2) of a reed for rotation about an axis parallel to guide groove (17) formed in the reed. Flexible shafts (15) are used to transmit rotative force to the rotary brushes (16) to form the reed cleaning apparatus in compact construction, to dispose the rotary brushes close to the reed, to form the rotary brushes in a small diameter, and to enable cleaning the reed with warp yarns extended through the reed by depressing the warp yarns. The rotary brushes are disposed at the opposite longitudinal ends, respectively, of the carriage (3) to enable the reed cleaning apparatus to clean the entire length of the reed.
    Type: Application
    Filed: August 20, 2002
    Publication date: February 26, 2004
    Applicants: TAKAYAMA REED CO., LTD, TAGAWA KIKAI LTD
    Inventors: Takatsugu Kato, Hiroyasu Matsumoto
  • Patent number: 4976292
    Abstract: A weft end treating device for a shuttleless loom comprises a yarn holding device which holds the free end of an inserted weft and tensions the weft in synchronism with the beating motion, and pushing dents for pushing the free end of the weft into the yarn holding device when the weft is beaten up. The yarn holding device is fixedly mounted on the frame of a loom at a position on the extension line of the cloth fell on the weft arriving side. The pushing dents are fixedly provided on the sley, of the loom opposite to the yarn holding device.
    Type: Grant
    Filed: June 15, 1989
    Date of Patent: December 11, 1990
    Assignee: Tagawa Kikai Co., Ltd.
    Inventor: Hiroyasu Matsumoto
  • Patent number: 4574847
    Abstract: A rotary drum type weft storage apparatus for a shuttleless weaving machine of the type wherein a weft yarn from a yarn supply source is wound up onto and stored on a rotating yarn storing drum. It comprises a holding drum provided on a yarn releasing side of a yarn storing drum, a ring loosely fitted on an outer periphery of the holding drum, a retaining member for retaining the ring, and a reciprocal driving mechanism for moving the retaining member into and out of engagement with the larger diameter portion of the holding drum.
    Type: Grant
    Filed: January 16, 1985
    Date of Patent: March 11, 1986
    Assignee: Tagawa Kikai Co., Ltd.
    Inventor: Hiroyasu Matsumoto
  • Patent number: 4130549
    Abstract: A process for preparing an epoxy resin, which comprises reacting p-hydroxybenzoic acid and bisphenol A with an epihalohydrin in the presence of a base using a quaternary ammonium salt as a catalyst, the amount of the p-hydroxybenzoic acid being 10 to 90 mole% and the amount of the bisphenol A being 90 to 10 mole%, both based on the total amount of the hydroxybenzoic acid and bisphenol A.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: December 19, 1978
    Assignee: Kabushiki Kaisha Venoseiyaku oyo Kenkyuso
    Inventors: Ryuzo Ueno, Hiroyasu Matsumoto