Patents by Inventor Towako Takeishi

Towako Takeishi 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: 9321906
    Abstract: A thermoplastic resin composite with improved specific flexural strength, and a molded body containing the thermoplastic resin composite. A thermoplastic resin composite containing a resin component which is a polyamide resin or polypropylene resin, and hollow glass microspheres, wherein the hollow glass microspheres are surface treated with from 0.5 to 3 mass % of a silane coupling agent and from 1 to 5 mass % of a synthetic resin emulsion, based on 100 mass % of hollow glass microspheres.
    Type: Grant
    Filed: May 1, 2012
    Date of Patent: April 26, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Towako Takeishi, Takujiro Yamabe, Kyoko Takakuwa
  • Publication number: 20150218349
    Abstract: The present disclosure provides a plurality of glass bubbles having an average true density of up to about 0.55 grams per cubic centimeter and a size distribution including a median size in a range from about 15 micrometers to 40 micrometers. A hydrostatic pressure at which ten percent by volume of the plurality of glass bubbles collapses is at least about 100 megapascals. In some embodiments, the plurality of glass bubbles is a graded fraction preparable by classifying a second plurality of glass bubbles, wherein the second plurality of glass bubbles has a higher percentage of glass bubbles with a size of up to ten micrometers than the first plurality of glass bubbles. Composites including the plurality of glass bubbles are also disclosed.
    Type: Application
    Filed: April 13, 2015
    Publication date: August 6, 2015
    Inventors: Stephen E. Amos, Robert W. Hunter, Ronald J. Israelson, Towako Takeishi, Mark J. Williams, Takujiro Yamabe
  • Patent number: 9006302
    Abstract: The present disclosure provides a plurality of glass bubbles having an average true density of up to about 0.55 grams per cubic centimeter and a size distribution including a median size in a range from about 15 micrometers to 40 micrometers. A hydrostatic pressure at which ten percent by volume of the plurality of glass bubbles collapses is at least about 100 megapascals. In some embodiments, the plurality of glass bubbles is a graded fraction preparable by classifying a second plurality of glass bubbles, wherein the second plurality of glass bubbles has a higher percentage of glass bubbles with a size of up to ten micrometers than the first plurality of glass bubbles. Composites including the plurality of glass bubbles are also disclosed.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: April 14, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Stephen E. Amos, Robert W. Hunter, Ronald J. Israelson, Towako Takeishi, Mark J. Williams, Takujiro Yamabe
  • Publication number: 20140088244
    Abstract: A thermoplastic resin composite with improved specific flexural strength, and a molded body containing the thermoplastic resin composite. A thermoplastic resin composite containing a resin component which is a polyamide resin or polypropylene resin, and hollow glass microspheres, wherein the hollow glass microspheres are surface treated with from 0.5 to 3 mass % of a silane coupling agent and from 1 to 5 mass % of a synthetic resin emulsion, based on 100 mass % of hollow glass microspheres.
    Type: Application
    Filed: May 1, 2012
    Publication date: March 27, 2014
    Applicant: 3M Innovative Properties Company
    Inventors: Towako Takeishi, Takujiro Yamabe, Kyoko Takakuwa
  • Publication number: 20130165542
    Abstract: The present disclosure provides a plurality of glass bubbles having an average true density of up to about 0.55 grams per cubic centimeter and a size distribution including a median size in a range from about 15 micrometers to 40 micrometers. A hydrostatic pressure at which ten percent by volume of the plurality of glass bubbles collapses is at least about 100 megapascals. In some embodiments, the plurality of glass bubbles is a graded fraction preparable by classifying a second plurality of glass bubbles, wherein the second plurality of glass bubbles has a higher percentage of glass bubbles with a size of up to ten micrometers than the first plurality of glass bubbles. Composites including the plurality of glass bubbles are also disclosed.
    Type: Application
    Filed: September 7, 2011
    Publication date: June 27, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Stephen E. Amos, Robert W. Hunter, Ronald J. Israelson, Towako Takeishi, Mark J. Williams, Takujiro Yamabe