Patents by Inventor Daisuke Kurashima

Daisuke Kurashima 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: 10619276
    Abstract: A nonwoven fabric web having an excellent sound absorption coefficient in a frequency range from 800 Hz to 1000 Hz when used as a sound absorbing member for a vehicle exterior. The nonwoven fabric web including a nonwoven fabric having meltblown fibers and binder fibers arranged so as to be confounded with the meltblown fibers and fused with the meltblown fibers at some of the confounding points at the very least, the weight per unit area of the nonwoven fabric being from 400 g/m2 to 1500 g/m2, and the flexural rigidity of the nonwoven fabric being from 2.0 N/50 mm to 20.0 N/50 mm.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: April 14, 2020
    Assignee: 3M Innovative Properties Company
    Inventors: Daisuke Kurashima, Koji Imai, Kenichi Yoda
  • Publication number: 20190061647
    Abstract: A vehicular member that has an excellent sound absorption coefficient when, for example, the vehicular member is used as a sound absorbing material for a vehicle exterior cladding member (such as a fender liner). The vehicular member (21) includes a non-woven fabric web. A loss factor of the non-woven fabric web at 20 C and 10 Hz is preferably not less than about 0.07, and a bending rigidity of the non-woven fabric web is preferably not less than about 0.5 N/50 mm.
    Type: Application
    Filed: March 6, 2017
    Publication date: February 28, 2019
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventor: Daisuke KURASHIMA
  • Publication number: 20170044699
    Abstract: A nonwoven fabric web having an excellent sound absorption coefficient in a frequency range from 800 Hz to 1000 Hz when used as a sound absorbing member for a vehicle exterior. The nonwoven fabric web including a nonwoven fabric having meltblown fibers and binder fibers arranged so as to be confounded with the meltblown fibers and fused with the meltblown fibers at some of the confounding points at the very least, the weight per unit area of the nonwoven fabric being from 400 g/m2 to 1500 g/m2, and the flexural rigidity of the nonwoven fabric being from 2.0 N/50 mm to 20.0 N/50 mm.
    Type: Application
    Filed: April 28, 2015
    Publication date: February 16, 2017
    Inventors: Daisuke Kurashima, Koji Imai, Kenichi Yoda
  • Patent number: 6033455
    Abstract: To provide a filter frame which enables a filtering medium to be easily renewed on a site and makes it possible to provide a filter at a low cost.The filter frame comprises a pair of frame elements capable of being integrally coupled together through flange bonding, each frame element comprising a passage portion allowing the passage of a fluid to be filtered and a flange portion outwardly disposed at a peripheral end portion of said passage portion, and that each of said flange portions has at least one bending portion, and said two flange portions, when coupled together, are engaged with each other based upon at least one tongue-in-groove connecting portion with said filtering medium being sandwiched between said flange portions.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: March 7, 2000
    Assignee: 3M Innovative Properties Company
    Inventor: Daisuke Kurashima