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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 12766505 B1

PDFFull Text
Date of Patent:
Oct. 20, 2026

Filed:

Jun. 27, 2024

Microfluidic chips and methods of producing microfluidic chips

Applicant:

Toppan Holdings Inc., Tokyo, JP;

Inventor:

Hiroko Yazawa, Taito-ku, JP;

Assignee:

TOPPAN HOLDINGS INC., Tokyo, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Minh Q Le

Int. Cl.
CPC ...
B01L 3/00 (2006.01); G01N 33/483 (2006.01); G01N 33/487 (2006.01); G01N 33/49 (2006.01); G01N 35/08 (2006.01);
U.S. Cl.
CPC ...
B01L 3/502707 (2013.01); B01L 3/502715 (2013.01); B01L 3/502723 (2013.01); B01L 2200/0684 (2013.01); B01L 2200/12 (2013.01); B01L 2300/0816 (2013.01); B01L 2300/0887 (2013.01); B01L 2400/086 (2013.01); G01N 33/4833 (2013.01); G01N 33/48707 (2013.01); G01N 33/49 (2013.01); G01N 35/08 (2013.01);
Abstract

A microfluidic chip includes a fluidic channel portion, a cover layer, a substrate, and partition layers interposed between the cover layer and the substrate to define the fluidic channel portion. The partition layer has a curved portion curved away from the cover layer at an edge on the fluidic channel portion side of an upper contact surface in contact with the cover layer, and the fluidic channel portion includes a bubble trapping region formed by the curved portion and a rear surface of the cover layer on the fluidic channel portion side. The bubble trapping region traps air bubbles in the fluidic channel portion.

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Yazawa, Hiroko. (2026). Microfluidic chips and methods of producing microfluidic chips (U.S. Patent No. 12766505). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12766505

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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