Axial fan
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 13, 2018
Issued Date -
N/A
app pub date -
Oct 25, 2013
filing date -
Dec 27, 2012
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
There is provided with an axial fan comprising an impeller having a plurality of vanes; a motor rotating the impeller; a casing housing the impeller and the motor; a motor base mounting the motor; and a plurality of spokes connecting the motor base and the casing, wherein the motor base has a plurality of reinforcement ribs thereon, the plurality of reinforcement ribs being equal to or more than the plurality of spokes in number, and wherein the casing has a natural frequency equal to or higher than a frequency being transmitted to the casing from the motor when the motor is rotated at a rotation speed of 20000 rpm or more.
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 | |
---|---|---|
MINEBEA MITSUMI INC | NAGANO NAGANO |
International Classification(s)

- 2013 Application Filing Year
- F04D Class
- 1063 Applications Filed
- 941 Patents Issued To-Date
- 88.53 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Nishizawa, Masaaki | Kitasaku-gun, JP | 3 | 12 |
# of filed Patents : 3 Total Citations : 12 | |||
Nonaka, Tomoko | Hamamatsu, JP | 3 | 12 |
# of filed Patents : 3 Total Citations : 12 | |||
Oda, Yusuke | Yokohama, JP | 26 | 56 |
# of filed Patents : 26 Total Citations : 56 | |||
Uchikawa, Shinichi | Kitasaku-gun, JP | 37 | 154 |
# of filed Patents : 37 Total Citations : 154 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 1 Citation Count
- F04D Class
- 30.09 % this patent is cited more than
- 7 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 13, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 13, 2029 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
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 |
---|---|---|---|
Feb 20, 2023 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8 |
Feb 18, 2019 | 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 |
Aug 18, 2015 | I | Issuance | |
Jul 29, 2015 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Sep 18, 2014 | P | Published | |
Jun 11, 2013 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GE AVIATION SYSTEMS LLC;REEL/FRAME:031571/0529 Owner name: WOODWARD HRT, INC., CALIFORNIA Effective Date: Jun 11, 2013 |
May 21, 2013 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KOPECEK, JOSEPH THOMAS;ANAYA, JESUS;STIEG, MICHAEL ALAN;AND OTHERS;SIGNING DATES FROM 20130418 TO 20130507;REEL/FRAME:030455/0437 Owner name: GE AVIATION SYSTEMS LLC, MICHIGAN |
Mar 14, 2013 | F | Filing | |
Mar 14, 2013 | PD | Priority Date |

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