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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10246684 B1

PDFFull Text
Date of Patent:
Apr. 02, 2019

Filed:

Mar. 22, 2017

Cancer cell-trapping metal filter, cancer cell-trapping metal filter sheet, cancer cell-trapping device, and manufacturing methods therefor

Applicant:

Hitachi Chemical Company, Ltd., Tokyo, JP;

Inventors:

Hisashige Kanbara, Oyama, JP;

Yoshihito Kikuhara, Oyama, JP;

Takahiro Suzuki, Oyama, JP;

Assignee:

HITACHI CHEMICAL COMPANY, LTD., Tokyo, JP;

Attorney:

Fitch, Even, Tabin & Flannery, LLP

Primary Examiner:

Madeline Gonzalez

Int. Cl.
CPC ...
B01D 39/10 (2006.01); G03F 7/42 (2006.01); C12N 5/09 (2010.01); G01N 33/49 (2006.01); B22D 25/02 (2006.01); B22D 29/00 (2006.01); G01N 1/40 (2006.01); C08J 5/12 (2006.01); G03F 7/038 (2006.01); G03F 7/039 (2006.01); G03F 7/20 (2006.01); G03F 7/32 (2006.01); G03F 7/40 (2006.01);
U.S. Cl.
CPC ...
C12N 5/0694 (2013.01); B01D 39/10 (2013.01); B22D 25/02 (2013.01); B22D 29/00 (2013.01); C08J 5/121 (2013.01); G01N 1/4077 (2013.01); G01N 33/49 (2013.01); G03F 7/038 (2013.01); G03F 7/039 (2013.01); G03F 7/2004 (2013.01); G03F 7/322 (2013.01); G03F 7/405 (2013.01); G03F 7/428 (2013.01); C08J 2300/12 (2013.01); G01N 2001/4088 (2013.01); Y10T 29/49 (2015.01); Y10T 156/10 (2015.01);
Abstract

Provided are a cancer cell-trapping metal filter which has a high opening ratio, a cancer cell-trapping metal filter sheet, a cancer cell-trapping device using the cancer cell-trapping filter, and manufacturing methods therefor. According to a cancer cell-trapping metal filter, openings of connected through-holesthat are formed in a metal sheethave a wave shape, and thus it is possible to extract a CTC from other components by utilizing a hole diameter on a short-side side of the openings, and it is possible to make the connected through-holes be closer to each other due to the wave shape while maintaining a CTC trapping ability. Accordingly, it is possible to further improve the opening ratio in the cancer cell-trapping metal filter

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