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:
Nov. 08, 2022
Filed:
Feb. 18, 2021
Almus Corp., Chungcheongnam-do, KR;
Ju Heon Ko, Gyeonggi-do, KR;
Jong Won Lee, Incheon, KR;
Byung Il Min, Gyeonggi-do, KR;
Yun Uk Ha, Incheon, KR;
Jeong Kwon Park, Gyeonggi-do, KR;
ALMUS Corp., Chungcheongnam-do, KR;
Abstract
Disclosed is a speaker unit for an earphone. The speaker unit includes a frame, a magnet, a plate fixed to the frame and coming into contact with the magnet, a diaphragm, a coil disposed to be radially overlapped with the magnet and the plate, and a flexible printed circuit board (FPCB). Here, the FPCB includes a first area fixed to the diaphragm, a second area connected to the frame, and a plurality of third areas configured to connect the first area to the second area. The third area includes a contact point connected to the coil. The third areas each include at least one bent area, and a space is disposed between the third areas adjacent to each other.