Patents by Inventor Hozuma Okada

Hozuma Okada 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: 8202600
    Abstract: A sheet of an artificial leather substrate contains an upper-layer nonwoven fabric A (1) and a base nonwoven fabric B (2). The upper-layer nonwoven fabric A (1) is a wet-laid nonwoven fabric having a density of 0.30 to 0.50 g/cm3 and being produced with synthetic fibers in which the component fibers have a fineness of 0.005 to 1.1 dtex, a fiber length of 3 to 10 mm and a weight per unit area of 20 to 150 g/m2, and the base nonwoven fabric B (2) is a layer of a nonwoven fabric having a density of 0.15 g/cm3 or more and less than 0.28 g/cm3 and being produced with synthetic fibers in which the component fibers have a fineness greater than that of the component fibers of the upper-layer nonwoven fabric A and 4.5 dtex or less, a fiber length of 2 to 15 mm and a weight per unit area of 50 to 400 g/m2. The upper-layer nonwoven fabric A (1) and the base nonwoven fabric B (2) are layered, made into a single body by entanglement of the component fibers of both layers and impregnated with an elastic polymer.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: June 19, 2012
    Assignee: Tradik Co., Ltd.
    Inventors: Hozuma Okada, Kunio Ichihashi
  • Publication number: 20090291250
    Abstract: A sheet of an artificial leather substrate contains an upper-layer nonwoven fabric A (1) and a base nonwoven fabric B (2). The upper-layer nonwoven fabric A (1) is a wet-laid nonwoven fabric having a density of 0.30 to 0.50 g/cm3 and being produced with synthetic fibers in which the component fibers have a fineness of 0.005 to 1.1 dtex, a fiber length of 3 to 10 mm and a weight per unit area of 20 to 150 g/m2, and the base nonwoven fabric B (2) is a layer of a nonwoven fabric having a density of 0.15 g/cm3 or more and less than 0.28 g/cm3 and being produced with synthetic fibers in which the component fibers have a fineness greater than that of the component fibers of the upper-layer nonwoven fabric A and 4.5 dtex or less, a fiber length of 2 to 15 mm and a weight per unit area of 50 to 400 g/m2. The upper-layer nonwoven fabric A (1) and the base nonwoven fabric B (2) are layered, made into a single body by entanglement of the component fibers of both layers and impregnated with an elastic polymer.
    Type: Application
    Filed: July 25, 2007
    Publication date: November 26, 2009
    Applicant: Tradik Co., Ltd.
    Inventors: Hozuma Okada, Kunio Ichihashi
  • Patent number: 4621489
    Abstract: A textile fabric woven or knitted by the use of cored yarns, each of which cored yarns comprises a thread wadding, composed by a bundle of inner fibers having a high water retentivity, and a thread sheath composed of a plurality of outer fibers arranged exteriorly of the thread wadding so as to substantially completely enclose the inner fibers. The outer fibers has a high moisture permeability and a low water retentivity, and the inner fibers are substantially completely encompassed by the outer fibers in a predetermined thickness while permitted to expand upon absorption of water or moisture vapor.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: November 11, 1986
    Assignee: Sakashita Co., Ltd.
    Inventor: Hozuma Okada
  • Patent number: 4530873
    Abstract: A sweat absorbent textile fabric suitable as a material for outerwears including sportwears comprises a water absorbent fabric layer having a high moisture absorbency and a water permeable fabric layer having a low moisture absorbency and a high moisture permeability. These fabric layers may be integrally connected, such as by knitting or by the use of a bonding agent, together to provide a double-layered fabric structure. When in use, the combination of these fabric layer is used together with an outer fabric layer to be positioned on one side of the water absorbent fabric layer opposite to the water permeable fabric layer.
    Type: Grant
    Filed: July 10, 1984
    Date of Patent: July 23, 1985
    Assignee: Sakashita Co., Ltd.
    Inventor: Hozuma Okada
  • Patent number: 4465730
    Abstract: A leather-like textile material comprising a multi-layered substrate having at least first and second knitted or woven fabric layers, and a leather-like covering provided on one surface of the second fabric layer opposite to the first fabric layer. The first fabric layer is made of a material having a high water permeability, but a low water retentivity, and the second fabric layer is made of a material having a high water retentivity.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: August 14, 1984
    Assignee: Sakashita Co., Ltd.
    Inventor: Hozuma Okada
  • Patent number: 4430811
    Abstract: A footwear such as shoes, boots, slippers etc., comprises a three-layered structure including an outer cover, an intermediate layer made of foamed urethane and an inner cover.The inner cover has a double-layered structure including first and second layer of fabric and the first and second layer are so combined as not only to show good absorption of the sweat emitted from the wearer's foot but also to keep the surface thereof held in contact to the foot dry.
    Type: Grant
    Filed: January 4, 1982
    Date of Patent: February 14, 1984
    Assignee: Sakashita Co., Ltd.
    Inventor: Hozuma Okada