Patents by Inventor Toyota Seki

Toyota Seki 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).

  • Wrought fiber sheet and filter unit
    Patent number: 7364607
    Abstract: A wrought fiber sheet or air cleaning filter unit that exhibits high performance and is biodegradable so as to enable reducing load upon environment. The wrought fiber sheet is produced by coupling biodegradable fiber sheets having electret properties by means of a configuration reinforcing member of a biodegradable material. Further, the frame for accommodating the wrought fiber sheet is also constituted of a biodegradable member so as to obtain an air cleaning filter unit that exerts biodegradability as a whole.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: April 29, 2008
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Kazuhiro Ueda, Toyota Seki
  • Adsorptive sheet and filter for clarifying air
    Patent number: 6936094
    Abstract: Provided are an adsorption sheet and an air-purifying filter, which can have low air-flow resistance and high deodorizing performance and be resistant to clogging by dust, from which a powdered adsorbent can hardly drop off, and in which any attached agent can hardly lose its effect. Such a product can be obtained by a process including the steps of: sufficiently premixing an agent-bearing activated carbon powder and a powdered thermoplastic resin to form a mixed powder; then spreading the mixed powder on a base sheet having a certain bulkiness and bearing an agent; stacking an air-permeable sheet thereon; and hot-pressing them.
    Type: Grant
    Filed: September 2, 2002
    Date of Patent: August 30, 2005
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Shinichi Minemura, Toyota Seki, Makoto Morita
  • Wrought fiber sheet and filter unit
    Publication number: 20050172812
    Abstract: A wrought fiber sheet or air cleaning filter unit that exhibits high performance and is biodegradable so as to enable reducing load upon environment. The wrought fiber sheet is produced by coupling biodegradable fiber sheets having electret properties by means of a configuration reinforcing member of a biodegradable material. Further, the frame for accommodating the wrought fiber sheet is also constituted of a biodegradable member so as to obtain an air cleaning filter unit that exerts biodegradability as a whole.
    Type: Application
    Filed: May 19, 2003
    Publication date: August 11, 2005
    Applicant: Toyo Boseki Kabushiki Kaisha
    Inventors: Kazuhiro Ueda, Toyota Seki
  • Adsorptive sheet and filter for clarifying air
    Publication number: 20050000363
    Abstract: Provided are an adsorption sheet and an air-purifying filter, which can have low air-flow resistance and high deodorizing performance and be resistant to clogging by dust, from which a powdered adsorbent can hardly drop off, and in which any attached agent can hardly lose its effect. Such a product can be obtained by a process including the steps of: sufficiently premixing an agent-bearing activated carbon powder and a powdered thermoplastic resin to form a mixed powder; then spreading the mixed powder on a base sheet having a certain bulkiness and bearing an agent; stacking an air-permeable sheet thereon; and hot-pressing them.
    Type: Application
    Filed: September 2, 2002
    Publication date: January 6, 2005
    Inventors: Shinichi Minemura, Toyota Seki, Makoto Morita