Title:
THIN MICROPHONE AND HELMET WITH MICROPHONE
Document Type and Number:
WIPO Patent Application WO/2010/005045
Kind Code:
A1
Abstract:
Disclosed is a thin microphone which can be implemented with a simple configuration and can prevent generation of noise sound by intercepting external impact of sweat, dust, or the like, on the microphone. A helmet (10) has a microphone portion (30) fixed to a chin strap (18). The microphone portion (30) consists of a holding member (31) composed of low repulsion rubber and having an area which can touch the periphery of throat of a person wearing the helmet, and a thin piezoelectric element (32) held in the holding member (31). The microphone portion (30) is constituted by hot pressing the thin piezoelectric element (32) sandwiched by flexible films (33a, 33b) from the opposite sides and then inserting an integrated sheet of the piezoelectric element (32) and the flexible films (33a, 33b) into the low repulsion rubber (31).
Inventors:
HIROSHIGE HATSUNORI (JP)
Application Number:
PCT/JP2009/062504
Publication Date:
January 14, 2010
Filing Date:
July 09, 2009
Export Citation:
Assignee:
HIROSHIGE HATSUNORI (JP)
International Classes:
H04R17/02; A42B3/06; A42B3/30; H04R1/00; H04R1/10; H04R17/00
Foreign References:
| JP2007214883A | 2007-08-23 | |||
| JP2006207108A | 2006-08-10 | |||
| JPH0484598U | 1992-07-22 | |||
| JPH10210584A | 1998-08-07 | |||
| JPS6089229U | 1985-06-19 | |||
| JPH0622331U | 1994-03-22 | |||
| JP2001086582A | 2001-03-30 | |||
| JPH0690491A | 1994-03-29 |
Attorney, Agent or Firm:
AOKI, Hiroyoshi et al. (JP)
Hiroyoshi Aoki (JP)
Hiroyoshi Aoki (JP)
Download PDF:
Previous Patent: TRANSGENIC YEAST, AND METHOD FOR PRODUCTION OF ETHANOL
Next Patent: ANTI-ANGIOGENIC AGENT
Next Patent: ANTI-ANGIOGENIC AGENT