Patents by Inventor Junko Ishii

Junko Ishii 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).

  • Publication number: 20190076767
    Abstract: The filter device has a high-temperature filter medium and a low-temperature filter medium. The high-temperature filter medium includes a high-temperature resin that melts above a first melting-temperature. The low-temperature filter medium includes a low-temperature resin which melts above a second melting-temperature which is lower than the first melting-temperature. The low-temperature filter medium is disposed in a layer in which a temperature for forming a welded portion is hard to rise. In the welded portion, both the high-temperature resin and the low-temperature resin are welded. A welding step supplies heat so that heat is transferred from the high-temperature filter medium to the low-temperature filter medium. In the welding step, melted resins are cured to form the welded portion after melting both the high-temperature resin and the low-temperature resin.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 14, 2019
    Inventors: Junko ISHII, Katsuhisa YAMADA
  • Patent number: 8241496
    Abstract: A filter device includes a casing having an inlet for introducing fluid and an outlet for discharging fluid, and a filtering element disposed between the inlet and the outlet. The filtering element has an outer circumference face restricted from being deformed in a fluid flowing direction. The filtering element has an upstream end face on an upstream side in the fluid flowing direction, and a downstream end face on a downstream side in the fluid flowing direction. The filtering element is configured to be compressed toward the upstream end face by pressing the downstream end face.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: August 14, 2012
    Assignee: Kyosan Denki Co., Ltd.
    Inventor: Junko Ishii
  • Publication number: 20100038302
    Abstract: ABSTRACT OF THE DISCLOSURE A filter device includes a casing having an inlet for introducing fluid and an outlet for discharging fluid, and a filtering element disposed between the inlet and the outlet. The filtering element has an outer circumference face restricted from being deformed in a fluid flowing direction. The filtering element has an upstream end face on an upstream side in the fluid flowing direction, and a downstream end face on a downstream side in the fluid flowing direction The filtering element is configured to be compressed toward the upstream end face by pressing the downstream end face.
    Type: Application
    Filed: June 17, 2009
    Publication date: February 18, 2010
    Applicant: KYOSAN DENKI CO., LTD.
    Inventor: Junko ISHII