FLUID CONTROL VALVE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
May 20, 2010
app pub date -
Nov 13, 2009
filing date -
Nov 17, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A fluid control valve comprises a ferromagnetic material portion that is formed on the spool so as to extend in the axial direction of the spool, permanent magnets that are arranged opposite each other having the middle portion therebetween in a direction orthogonal to the axial direction of the spool, form between themselves oppositely oriented magnetic fields aligned in the axial direction, and which are formed to be longer than the middle portion in the axial direction of the spool, and a coil that is arranged in a direction orthogonal to the axial direction of the spool with respect to the permanent magnets and generates a magnetic field that penetrates the opposing permanent magnets due to the conduction of electricity.
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 | |
---|---|---|
CKD CORPORATION | 250 OUJI 2-CHOME KOMAKI-SHI AICHI 4858551 |
International Classification(s)

- 2009 Application Filing Year
- F16K Class
- 1112 Applications Filed
- 693 Patents Issued To-Date
- 62.33 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
HIROSE, Yasuhisa | Komaki-shi, JP | 7 | 39 |
# of filed Patents : 7 Total Citations : 39 | |||
ITAFUJI, Hiroshi | Komaki-shi, JP | 38 | 374 |
# of filed Patents : 38 Total Citations : 374 | |||
KOKUBO, Norio | Komaki-shi, JP | 9 | 28 |
# of filed Patents : 9 Total Citations : 28 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- F16K Class
- 4.46 % 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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