Sunpower: Japanese Patents

The world leader in free-piston Stirling engines and coolers
and in linear compressors

Japanese Patents

Patent Number	Title	Issue Date

3,877,224	Fluid Bearing With Compliant Linkage for Centering Reciprocating Bodies	10-Nov-06
3,786,959	Centering System with One Way Valve for Free Piston Machine	31-Mar-06
3,757,166	Heat Exchanger and Method of Constructing Same	06-Jan-06
3,751,024	Triac Control Circuit	16-Dec-05
3,687,961	Gas Bearing and Method of Making a Gas Bearing for a Free Piston Machine	17-Jun-05
3,630,661	DC Centering of Free Piston Machine	24-Dec-04
3,608,794	Free Piston End Position Limiter	22-Oct-04
3,413,658	Method and Apparatus for Measuring Piston Position in a Free Piston Compressor	04-Apr-03
3,224,232	Magnet Support Sleeve for Lnear Electromechanical Transducer	14-Aug-01
3,100,163	Free Piston Stirling Machine Having Variable Spring Between Displacer and Piston for Power Control and Stroke Limiting	18-Aug-00
1,966,438	Electromechanical Transducer Particularly Suitable for a Linear Alterantor Driven by a Free Piston Stirling Engine	18-Nov-95

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