US Patent No: 4,928,730

Number of patents in Portfolio can not be more than 2000

Proportional electromagnetic valve having amplifier therein

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Importance

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Abstract

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A proportional electromagnetic valve includes a valve main body having a valve member, a solenoid to drive the valve member, and an amplifier unit to control the solenoid. The solenoid is attached to one or both side portions of the valve main body. The amplifier unit has a size which is almost equal to a size on the unit attaching surface side of the valve main body and solenoids. The casing of the amplifier unit has an enclosing space large enough such that single printed board having all of drive amplifiers attached there to placed in the casing of the amplifier unit.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TOKIMEC INC.TOKYO70

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ando, Tsuyoshi Sano, JP 11 39
Hatakenaka, Kosuke Sano, JP 1 9
Hirono, Nakayasu Yokohama, JP 2 10
Kihara, Kazuyuki Sano, JP 3 22
Mito, Akio Yokohama, JP 7 57
Nakao, Hirotoshi Tochigi, JP 5 11
Ogawa, Hiroshi Nagoya, JP 499 4162

Cited Art Landscape

Patent Info (Count) # Cites Year
 
DOUBL A PRODUCTS CO., A CORP. OF MI. (1)
4,418,720 Solenoid operated directional valves having modular construction 12 1981
 
Double A Products Company (1)
4,308,891 Terminal blocks and indicator for solenoid valves 26 1980
 
Mannesmann Rexroth GmbH (1)
4,458,289 Solenoid drive for valves 3 1982
 
Yuken Kogyo Kabushiki Kaisha (1)
4,796,661 Proportional electro-hydraulic pressure control valve 27 1986

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
SMC CORPORATION (3)
6,520,202 Manifold valve having position detecting function 17 2001
6,505,642 Manifold valve having position detecting function 10 2001
7,048,002 Board-mounted manifold valve 6 2003
 
ROBERT BOSCH GMBH (2)
5,137,455 Electrical connector, particularly for braking control unit 23 1990
5,318,269 Electronic control system for magnetic valves operated individually or in cascade 0 1992
 
FESTO AG & CO. KG (1)
7,040,346 Fluid power valve and integrated visual indicator 2 2003
 
FLUID AUTOMATION SYSTEMS S.A. (1)
5,481,237 Solenoid valve with electrical connection elements and integrated safety devices 9 1994
 
Numatics, Incorporated (1)
5,522,431 Solenoid valve control system 12 1995
 
SAUER-DANFOSS INC. (1)
7,011,113 Hydraulic cartridge valve solenoid coil for direct mount to a printed circuit board 1 2004