IP Library Granted Patent US 7,190,804
Granted Patent B2
US 7,190,804 · App. 10/718,646 · Granted Mar 13, 2007

Speaker apparatus

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,190,804
App. No.
10/718,646
Granted
Mar 13, 2007
Kind
B2
Abstract

This invention provides a speaker apparatus that outputs sound having smooth frequency characteristics. To solve the inconvenience with the prior art, this invention is a speaker apparatus comprising a diaphragm and a cylindrical-shaped coil bobbin, and not comprising a center cap that covers the coil bobbin, and where the diaphragm is located such that it rests on the coil bobbin, and the coil bobbin and diaphragm are located such that sound from the coil bobbin and diaphragm is not reflected.

Claims (10)

1. A speaker apparatus comprising a diaphragm and a cylindrical-shaped coil bobbin, and not comprising a center cap that covers said coil bobbin, and wherein

said diaphragm is located such that it rests on the end section of said coil bobbin;

said coil bobbin and said diaphragm are located such that sound from said coil bobbin is not reflected; and

said diaphragm comprises a tab section, and said tab section is located inside said coil bobbin.

2. The speaker apparatus according to claim 1 wherein said speaker apparatus is a coaxial speaker apparatus constructed such that the locations of the sound sources coincide with a plurality of frequency ranges.

3. The speaker apparatus according to claim 1 wherein the end section of said coil bobbin on the side of said diaphragm and said diaphragm are fastened by attaching said tab section to said end section with adhesive.

4. A speaker apparatus comprising a diaphragm and a cylindrical-shaped coil bobbin, and not comprising a center cap that covers said coil bobbin, and wherein

said diaphragm comprises a tab section, wherein said tab section is located such that it rests on the end section of said coil bobbin;

said coil bobbin and said diaphragm are located such that sound from said coil bobbin is not reflected; and

said tab section is located inside said coil bobbin.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 30, 2017
From: ONKYO KABUSHIKI KAISHA D/B/A ONKYO CORPORATION
To: PIONEER CORPORATION
Reel/Frame 041116/0995 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 11, 2015
From: PIONEER CORPORATION
To: ONKYO KABUSHIKI KAISHA D/B/A ONKYO CORPORATION
Reel/Frame 035821/0047 →
CHANGE OF ADDRESS Recorded Dec 9, 2014
From: PIONEER CORPORATION
To: PIONEER CORPORATION
Reel/Frame 034545/0798 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 24, 2003
From: NAKAMURA, TOHRU; SUENAGA, TOMOHIRO
To: PIONEER CORPORATION
Reel/Frame 014739/0396 →