Dynamic microphone unit and dynamic microphone
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 4, 2014
Grant Date -
Mar 7, 2013
app pub date -
Aug 30, 2012
filing date -
Sep 1, 2011
priority date (Note) -
In Force
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
A dynamic microphone unit includes a diaphragm vibrating in response to received sound waves; a voice coil fixed to the diaphragm; a magnetic circuit generating magnetism in a magnetic gap where the voice coil is disposed; and an acoustic resistor disposed in a space adjacent to the reverse of the diaphragm. The acoustic resistor includes a cover disposed between a felt and the diaphragm. A case having an open end and a closed end accommodates the felt and the cover. The cover has holes transmitting sound waves at the closed end and a bending portion at the open end which urges the cover and the felt.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
KABUSHIKI KAISHA AUDIO-TECHNICA | 2-46-1 NISHI-NARUSE MACHIDA-SHI TOKYO 194-8666 |
International Classification(s)

- 2012 Application Filing Year
- H04R Class
- 1738 Applications Filed
- 1523 Patents Issued To-Date
- 87.63 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Akino, Hiroshi | Kanagawa, JP | 275 | 1766 |
# of filed Patents : 275 Total Citations : 1766 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 4, 2025 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Jul 15, 2021 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Feb 20, 2018 | I | Issuance | |
Jan 31, 2018 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Aug 25, 2016 | P | Published | |
May 02, 2016 | F | Filing | |
May 02, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CLARK, TIMOTHY JOSEPH;SURNILLA, GOPICHANDRA;GERHART, MATTHEW JOHN;AND OTHERS;SIGNING DATES FROM 20130826 TO 20131003;REEL/FRAME:038439/0584 Owner name: FORD GLOBAL TECHNOLOGIES, LLC, MICHIGAN |

Matter Detail

Renewals Detail
