Patents by Inventor Miyoko Hirai

Miyoko Hirai 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: 6840842
    Abstract: An objective of the present invention is to provide a burnishing pad, capable of removing dirt by burnishing a place (i.e., a dirty point) onto which dirt attaches to impart sufficient luster, and being biodegraded; a burnishing machine equipped with the burnishing pad; and a burnishing method using the burnishing pad. The burnishing pad of the invention is comprised of a lock-like fiber composite in which adjacent fibers are bonded at intersection thereof, wherein said fiber is at least one selected from the group consisting of a vegetable fiber and an animal fiber. And another burnishing pad is a fiber composite comprised of thick fibers of 150 ?m or more in fiber diameter. These pads can be equipped with a porous supporting layer, respectively. The porous supporting layer has a mean 5% modulus strength of 20 N/5 cm width or more at 70° C. and a unit area weight of 100 g/m2 or less.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: January 11, 2005
    Assignees: Toyo Cushion Co., Ltd., Japan Vilene Company, Ltd.
    Inventors: Miyoko Hirai, Yukio Suzuki, Kazuo Irobe, Takanobu Haruki, Yoshihiro Suzuki, Naohiko Shimono, Hiroki Kanamaru
  • Publication number: 20030124958
    Abstract: An objective of the present invention is to provide a burnishing pad, capable of removing dirt by burnishing a place (i.e., a dirty point) onto which dirt attaches to impart sufficient luster, and being biodegraded; a burnishing machine equipped with the burnishing pad; and a burnishing method using the burnishing pad. The burnishing pad of the invention is comprised of a rock-like fiber composite in which adjacent fibers are bonded at intersection thereof, wherein said fiber is at least one selected from the group consisting of a vegetable fiber and an animal fiber. And another burnishing pad is a fiber composite comprised of thick fibers of 150 &mgr;m or more in fiber diameter. These pads can be equipped with a porous supporting layer, respectively. The porous supporting layer has a mean 5% modulus strength of 20N/5 cm width or more at 70° C. and a unit area weight of 100 g/m2 or less.
    Type: Application
    Filed: December 12, 2002
    Publication date: July 3, 2003
    Applicant: TOYO CUSHION CO., LTD.
    Inventors: Miyoko Hirai, Yukio Suzuki, Kazuo Irobe, Takanobu Haruki, Yoshihiro Suzuki, Naohiko Shimono, Hiroki Kanamaru