Title:
カナル型受話器用イヤーピース及びそれを利用したカナル型受話器、並びにカナル型受話器を利用した聴診器及び補聴器
Document Type and Number:
Japanese Patent JP4913256
Kind Code:
B1
Inventors:
Isamu Koizumi
Application Number:
JP2011160315A
Publication Date:
April 11, 2012
Filing Date:
July 05, 2011
Export Citation:
Assignee:
Isamu Koizumi
International Classes:
H04R1/10; G10K11/22; H04R5/033; H04R25/00
Domestic Patent References:
| JPH01181400A | 1989-07-19 | |||
| JPS50151601U | 1975-12-17 | |||
| JP3150873U | 2009-06-04 | |||
| JPH01314098A | 1989-12-19 | |||
| JP2009171303A | 2009-07-30 | |||
| JPH0965476A | 1997-03-07 | |||
| JPS63312799A | 1988-12-21 | |||
| JPH0244899A | 1990-02-14 | |||
| JPH03117999A | 1991-05-20 | |||
| JPH088717B2 | 1996-01-29 |
Attorney, Agent or Firm:
Sadayoshi Igarashi