ROTATING ELECTRICAL MACHINE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
May 1, 2014
app pub date -
Oct 30, 2013
filing date -
Oct 31, 2012
priority date (Note) -
Published
status (Latency Note)
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Importance

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Abstract
An electrical machine having high torque and reliability and low cost, has a stator and rotor facing each other via an air gap, and a bracket at each of both shaft-direction end surfaces of the stator and rotor. The stator core is formed of a dust core, and a stator side guide portion projecting in the shaft direction concentrically with an inner peripheral portion of the stator, is provided on each of both side surface portions of the stator core, a bracket side guide portion, which is fitted to the stator side guide portion, is provided at each of the brackets, and the air gap is secured by making the stator side guide portion fitted to the bracket side guide portion.
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 | |
---|---|---|
NIPPON PISTON RING CO LTD | 12-10 HONMACHI-HIGASHI 5-CHOME CHUO-KU SAITAMA-SHI SAITAMA-KEN |
International Classification(s)

- 2013 Application Filing Year
- H02K Class
- 2008 Applications Filed
- 1782 Patents Issued To-Date
- 88.75 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
SAKAMOTO, Masafumi | Shimotsuga-gun, JP | 73 | 1160 |
# of filed Patents : 73 Total Citations : 1160 | |||
SATO, Shigeyoshi | Shimotsuga-gun, JP | 11 | 81 |
# of filed Patents : 11 Total Citations : 81 | |||
TAKEGUCHI, Shunsuke | Shimotsuga-gun, JP | 29 | 253 |
# of filed Patents : 29 Total Citations : 253 |
Cited Art Landscape
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Patent Citation Ranking
- 17 Citation Count
- H02K Class
- 65.85 % this patent is cited more than
- 11 Age
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 | Nov 1, 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 |
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