Resources Contact Us Home
Aluminum nitride heater

Image Number 2 for United States Patent #6084221.

A ceramic heater includes a substrate (1) consisting of an aluminum nitride sintered body, and a heating element (2) and a feed electrode (3), mainly composed of silver or a silver alloy, formed on a surface of the substrate (1). The aluminum nitride sintered body contains a group IIa or IIIa element in the periodic table or a compound thereof and silicon or a silicon compound of 0.01 to 0.5 percent by weight in terms of the silicon element, and preferably further contains a group VIII transition element or a compound thereof by 0.01 to 1 percent by weight in terms of the element.

  Recently Added Patents
Controller for internal combustion engine
DRAM refresh method and system
Method for mapping resource units
Determining phase-specific parameters of a physiological variable
Pausing a VoiceXML dialog of a multimodal application
Estimating travel time
Method and apparatus for blind signal extraction
  Randomly Featured Patents
System and method of protecting instruments from down-hole fluids
Motor control device and electric power steering device
Collapsable bicycle carrier
Radiation image processing apparatus for removing periodic patterns caused by a scattered radiation removing means
Method for compensating an offset in an asymmetric reproduction signal
Method for wireless communication transfer with an implanted medical device
Mixed oxidation product on the basis of bark waxes and other waxes
Method and apparatus for information transfer in vehicle service systems
Camera control system, camera server, camera client, control method, and storage medium