Title:
FILTER DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/090834
Kind Code:
A1
Abstract:
The present invention makes it possible to install a measurement unit and an antenna on a filter device just by attaching one member. A metal head is provided so as to cover an opening of a filter case, and a substantially tubular filtering medium is provided in an internal space formed by the filter case and the head. A metal plate is provided in the vicinity of the opening of the filter case, and an IC tag is provided between the filtering medium and the plate. The head comprises an antenna unit having an antenna part including an antenna communicable with the IC tag. The antenna unit has a substantially rod-like case that is at least partially inserted into the head. The antenna part is provided adjacent to a first end, which is one end of the case. The case is provided on the head such that the antenna part is exposed when the head is viewed from the filter case side. The plate comprises a hole that exposes the IC tag.
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Inventors:
KITAJIMA NOBUYUKI (JP)
SASAKI NOBUKI (JP)
SASAKI NOBUKI (JP)
Application Number:
PCT/JP2020/041192
Publication Date:
May 14, 2021
Filing Date:
November 04, 2020
Export Citation:
Assignee:
YAMASHIN FILTER CORP (JP)
International Classes:
B01D29/00; B01D29/07; B01D29/11; B01D35/14; B01D46/42
Domestic Patent References:
| WO2015002307A1 | 2015-01-08 | |||
| WO2019131263A1 | 2019-07-04 |
Foreign References:
| JP2007537870A | 2007-12-27 | |||
| JP2011506842A | 2011-03-03 | |||
| US20190076760A1 | 2019-03-14 | |||
| CN204637737U | 2015-09-16 | |||
| JP2019115879A | 2019-07-18 |
Other References:
See also references of EP 4056251A4
Attorney, Agent or Firm:
SAKATA Yukari (JP)
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