Patents by Inventor Tosirou Yamaguchi

Tosirou Yamaguchi 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: 8312588
    Abstract: A window-screen-cleaning fabric comprises a base cloth and a plurality of fibers comprising (A) a crimped fiber and (B) a flat fiber. In the fabric, the crimped fibers and the flat fibers are raised from a first surface of the base cloth, and the height of the flat fibers from the first surface of the base cloth is greater than that of the crimped fibers from the first surface of the base cloth.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: November 20, 2012
    Assignees: Maru-T Ohtsuka Corp., Linzer Products Corp.
    Inventors: Tosirou Yamaguchi, Toshikazu Ohyama
  • Publication number: 20090271938
    Abstract: A window-screen-cleaning fabric comprises a base cloth and a plurality of fibers comprising (A) a crimped fiber and (B) a flat fiber. In the fabric, the crimped fibers and the flat fibers are raised from a first surface of the base cloth, and the height of the flat fibers from the first surface of the base cloth is greater than that of the crimped fibers from the first surface of the base cloth.
    Type: Application
    Filed: March 16, 2009
    Publication date: November 5, 2009
    Applicants: KURARAY CO., LTD., MARU-T OHTSUKA CORP., LINZER PRODUCTS CORP.
    Inventors: Tosirou YAMAGUCHI, Toshikazu Ohyama
  • Patent number: 7319078
    Abstract: A novel porous fibrous structure containing from 10 to 100% by weight of wet heat bonding fibers, having cellular cavities in the fibrous structure of the fibers, in which a plurality of indefinite cellular cavities are present independently or in a state of partially connected in the inside of the fibrous structure, at least a portion of the fibers constituting the fibrous structure is heat bonding by the wet heat bonding fibers, and a process for producing such porous fibrous structure.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: January 15, 2008
    Assignee: Kuraray Co., Ltd.
    Inventors: Tosirou Yamaguchi, Hisaharu Kuwahara, Hirokuni Tanii
  • Publication number: 20070056132
    Abstract: A paint roller comprises a liquid-impermeable tubular core member 6 with an engaging element 9 having a male structure of a separable fastener and a height of 0.3 to 4.0 mm on a surface thereof, and a cover member 8 with a female structure and a loop on the inner surface capable of male-female engaging with the engaging element on the surface of the core member. The density of the engaging element on the surface of the core member is 30 to 150/cm2. Thus, in such paint roller, when the cover member becomes dirty, damaged, or worn, the cover member can be exchanged to a new cover member. Such that, a roller body is repeatedly usable, and the paint roller can provide a good painted surface. Moreover, there is also provided an effect roller in which a painting pattern can be changed optionally.
    Type: Application
    Filed: October 5, 2004
    Publication date: March 15, 2007
    Applicants: Kuraray Co., Ltd., MARU-T OHTSUKA CORP.
    Inventors: Tosirou Yamaguchi, Toshikazu Ohyama
  • Patent number: 6993941
    Abstract: A sliver-knit material causing less buckling fatigue or deformation during compression and improved with shedding, in which a pile thread contains 30% or more of staple fibers having steric crimps, and a dense layer (Bo) and a bulky layer (Su) on the side of the upper layer in contact with the dense layer (Bo) are formed, where the ratio of height between the dense layer (Bo) and the bulky layer (Su) in the sliver-knit material is from 2:5 to 1:1, and at least a portion of fibers present in the dense layer (Bo) are folded back.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: February 7, 2006
    Assignee: Kuraray Co., Ltd.
    Inventor: Tosirou Yamaguchi
  • Publication number: 20050109069
    Abstract: A sliver-knit material causing less buckling fatigue or deformation during compression and improved with shedding, in which a pile thread contains 30% or more of staple fibers having steric crimps, and a dense layer (Bo) and a bulky layer (Su) on the side of the upper layer in contact with the dense layer (Bo) are formed, where the ratio of height between the dense layer (Bo) and the bulky layer (Su) in the sliver-knit material is from 2:5 to 1:1, and at least a portion of fibers present in the dense layer (Bo) are folded back.
    Type: Application
    Filed: October 6, 2004
    Publication date: May 26, 2005
    Applicant: KURARAY CO. LTD.
    Inventor: Tosirou Yamaguchi
  • Publication number: 20030213083
    Abstract: Provided is an inexpensive roller brush for painting, which has good paint holdability and good paint releasability and of which the brush face is smooth and homogeneous. Using the roller brush, the painted face is good and its quality is high. The roller brush is fabricated by covering a paint-impervious roll core with a paint holder of a fibrous circular material that contains conjugate fibers comprising a high-melting-point polymer component A and a low-melting-point polymer component B. In this, the fibrous circular material contains thermal-fusing conjugate fibers and at least a part of the fibers are fused to form a porous structure.
    Type: Application
    Filed: May 16, 2003
    Publication date: November 20, 2003
    Applicant: KURARAY CO. LTD,
    Inventor: Tosirou Yamaguchi
  • Publication number: 20030054721
    Abstract: A novel porous fibrous structure containing from 10 to 100% by weight of wet heat bonding fibers, having cellular cavities in the fibrous structure of the fibers, in which a plurality of indefinite cellular cavities are present independently or in a state of partially connected in the inside of the fibrous structure, at least a portion of the fibers constituting the fibrous structure is heat bonding by the wet heat bonding fibers, and a process for producing such porous fibrous structure.
    Type: Application
    Filed: October 30, 2002
    Publication date: March 20, 2003
    Applicant: KURARAY CO. LTD.
    Inventors: Tosirou Yamaguchi, Hisaharu Kuwahara, Hirokuni Tanii
  • Publication number: 20030032358
    Abstract: A novel porous fibrous structure containing from 10 to 100% by weight of wet heat bonding fibers, having cellular cavities in the fibrous structure of the fibers, in which a plurality of indefinite cellular cavities are present independently or in a state of partially connected in the inside of the fibrous structure, at least a portion of the fibers constituting the fibrous structure is heat bonding by the wet heat bonding fibers, and a process for producing such porous fibrous structure.
    Type: Application
    Filed: October 11, 2002
    Publication date: February 13, 2003
    Applicant: KURARAY CO. LTD.
    Inventors: Tosirou Yamaguchi, Hisaharu Kuwahara, Hirokuni Tanii
  • Patent number: 6508897
    Abstract: A novel porous fibrous structure containing from 10 to 100% by weight of wet heat bonding fibers, having cellular cavities in the fibrous structure of the fibers, in which a plurality of indefinite cellular cavities are present independently or in a state of partially connected in the inside of the fibrous structure, at least a portion of the fibers constituting the fibrous structure is heat bonding by the wet heat bonding fibers, and a process for producing such porous fibrous structure.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: January 21, 2003
    Assignee: Kuraray Co., Ltd.
    Inventors: Tosirou Yamaguchi, Hisaharu Kuwahara, Hirokuni Tanii
  • Patent number: 5875526
    Abstract: A female member of a Hook-and-Loop fastener made of double knit goods, in which a pile is provided at least in a portion on one side A of the double knit goods. The pile contains a crimped yarn, the percentage crimp (K.sub.1) of which is not more than 15%, the single fiber fineness of filaments composing the yarn is not less than 3 denier; and the yarn is knitted together with the yarn composing the other side B of the double knit goods only on one side A.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: March 2, 1999
    Assignee: Kuraray Co., Ltd.
    Inventor: Tosirou Yamaguchi