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.

Date of Patent:
Dec. 25, 2012

Filed:

Jan. 07, 2009
Applicants:

Yohei Jin, Mie, JP;

Yoshimichi Kajihara, Osaka, JP;

Shinya Mizone, Mie, JP;

Kazuaki Nishimura, Mie, JP;

Inventors:

Yohei Jin, Mie, JP;

Yoshimichi Kajihara, Osaka, JP;

Shinya Mizone, Mie, JP;

Kazuaki Nishimura, Mie, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 11/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

A speaker diaphragm containing resin and carbonized bamboo material with a large degree of flexibility in setting physical properties, moisture-proof reliability and strength secured, superior appearance, and productivity and dimensional stability increased, which allows making characteristics and sound highly accurately, and designing with great originality.


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