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.:
Date of Patent:
Aug. 04, 2026
Filed:
Jun. 02, 2022
Applicant:
Kao Corporation, Tokyo, JP;
Inventors:
Assignee:
KAO CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61M 5/46 (2006.01); A61M 37/00 (2006.01);
U.S. Cl.
CPC ...
A61M 5/46 (2013.01); A61M 2037/0023 (2013.01);
Abstract
An injection needle includes: protrusions that protrude from a sheet base. The protrusions include a first protrusion having an opening at a tip end portion and being hollow, a second protrusion having no opening at a tip end portion; and an insertion depth controller provided at an intermediate position lower than a tip end position of the first protrusion and higher than a surface of the sheet base. A difference in height between the tip end position of the first protrusion and a position of the insertion depth controller is preferably 1 μm or more and 5 000 μm or less.