CIRCUIT PROTECTION DEVICE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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N/A
Issued Date -
Aug 19, 2010
app pub date -
Mar 11, 2008
filing date -
Mar 16, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

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Abstract
There is provided a circuit protection device that increases the possibility of enabling a circuit to be protected. The circuit protection device (1) comprises a bimetal switch (4) and a PTC element (2), which are electrically connected in parallel with each other. The PTC element has a post-operation resistance value of 1.1 times or less the intrinsic resistance value of the circuit that is calculated based on the rated voltage and current of an electric circuit into which the circuit protection device is built and using the equaticon (1): rated voltage/rated current=intrinsic resistance value (1)
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
LITTELFUSE JAPAN G K | AKASAKA K TOWER 1-2-7 MOTOASAKA MINATO-KU TOKYO |
International Classification(s)

- 2008 Application Filing Year
- H02H Class
- 834 Applications Filed
- 548 Patents Issued To-Date
- 65.71 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
SUZUKI, Katsuaki | Ryugasaki, JP | 53 | 468 |
# of filed Patents : 53 Total Citations : 468 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- H02H Class
- 4.56 % this patent is cited more than
- 15 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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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