Patents by Inventor Keiko Ota

Keiko Ota 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: 8944241
    Abstract: A conveyor chain that enables magnet pieces for attracting and retaining articles conveyed on the chain. The magnet pieces are incorporated into synthetic resin link modules without changing a predetermined chain width and dimensioning of other device components. A large number of link rows consisting of a number of synthetic resin link modules are connected together so as to have a predetermined chain width W. At least some of the synthetic resin link modules have magnet storing blind holes which open in the chain width direction from link side surfaces such that a magnet piece can be insertably stored in the magnet storing blind hole and securely enclosed by the link side surface of an adjacent synthetic resin link module in the chain width direction.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: February 3, 2015
    Assignee: Tsubakimoto Chain Co.
    Inventors: Hajime Ozaki, Keiko Ota
  • Patent number: 8695784
    Abstract: There is provided a chain conveyor apparatus that realizes an accumulation operating environment that allows metallic articles to be readily and temporarily dammed up and retained at an accumulation position. Reduced power is required to operate the conveyor chain. Articles are attracted to and retained on the conveyor by using the magnetic force of magnet pieces. Attraction detaching pieces are built in rows of synthetic resin link modules to detach and release the articles. A projection driving mechanism is provided along a straight area on an inner circumferential side of the conveyor chain to project the attraction detaching pieces in and out of a loading surface of the rows of synthetic resin link modules.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: April 15, 2014
    Assignee: Tsubakimoto Chain Co.
    Inventor: Keiko Ota
  • Publication number: 20130319830
    Abstract: There is provided a chain conveyor apparatus that realizes an accumulation operating environment that allows metallic articles to be readily and temporarily dammed up and retained at an accumulation position. Reduced power is required to operate the conveyor chain. Articles are attracted to and retained on the conveyor by using the magnetic force of magnet pieces. Attraction detaching pieces are built in rows of synthetic resin link modules to detach and release the articles. A projection driving mechanism is provided along a straight area on an inner circumferential side of the conveyor chain to project the attraction detaching pieces in and out of a loading surface of the rows of synthetic resin link modules.
    Type: Application
    Filed: May 16, 2013
    Publication date: December 5, 2013
    Applicant: TSUBAKIMOTO CHAIN CO.
    Inventor: KEIKO OTA
  • Publication number: 20120073938
    Abstract: A conveyor chain that enables magnet pieces for attracting and retaining articles conveyed on the chain. The magnet pieces are incorporated into synthetic resin link modules without changing a predetermined chain width and dimensioning of other device components. A large number of link rows consisting of a number of synthetic resin link modules are connected together so as to have a predetermined chain width W. At least some of the synthetic resin link modules have magnet storing blind holes which open in the chain width direction from link side surfaces such that a magnet piece can be insertably stored in the magnet storing blind hole and securely enclosed by the link side surface of an adjacent synthetic resin link module in the chain width direction.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 29, 2012
    Applicant: TSUBAKIMOTO CHAIN CO.
    Inventors: Hajime OZAKI, Keiko OTA
  • Patent number: 7282481
    Abstract: A heparin-binding protein functionalized by covalently bonding thereto a sugar chain, a method for producing the protein and a pharmaceutical composition containing the protein as an active ingredient, as well as a method of functionalizing a natural protein having no sugar chain by covalently bonding thereto a sugar chain.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: October 16, 2007
    Assignee: Director-General of Agency of Industrial Science and Technology
    Inventors: Toru Imamura, Masahiro Asada, Syuichi Oka, Masashi Suzuki, Atsuko Yoneda, Keiko Ota, Yuko Oda, Kazuko Miyakawa, Noriko Orikasa, Chie Asada, Tetsuhito Kojima
  • Publication number: 20060079451
    Abstract: A heparin-binding protein functionalized by covalently bonding thereto a sugar chain, a method for producing the protein and a pharmaceutical composition containing the protein as an active ingredient, as well as a method of functionalizing a natural protein having no sugar chain by covalently bonding thereto a sugar chain.
    Type: Application
    Filed: November 23, 2005
    Publication date: April 13, 2006
    Applicant: Director-General of Agency of Industrial Science and Technology
    Inventors: Toru Imamura, Masahiro Asada, Syuichi Oka, Masashi Suzuki, Atsuko Yoneda, Keiko Ota, Yuko Oda, Kazuko Miyakawa, Noriko Orikasa, Chie Asada, Tetsuhito Kojima
  • Patent number: 7005415
    Abstract: A heparin-binding protein functionalized by covalently bonding thereto a sugar chain, a method for producing the protein and a pharmaceutical composition containing the protein as an active ingredient, as well as a method for functionalizing a natural protein having no sugar chain by covalently bonding thereto a sugar chain.
    Type: Grant
    Filed: July 22, 1998
    Date of Patent: February 28, 2006
    Assignee: Director-General Agency of Industrial Science and Technology
    Inventors: Toru Imamura, Masahiro Asada, Syuichi Oka, Masashi Suzuki, Atsuko Yoneda, Keiko Ota, Yuko Oda, Kazuko Miyakawa, Noriko Orikasa, Chie Asada, Tetsuhito Kojima