Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Spark plug for internal combustion engine and method for manufacturing spark plug










Image Number 10 for United States Patent #8120235.

A spark plug including a center electrode and a ground electrode. A center electrode noble metal tip is joined to a leading end portion of a center electrode, and a ground electrode noble metal tip is joined to a center-electrode-side side surface of the ground electrode. A distal end portion of the ground electrode noble metal tip protrudes from a distal-end surface of the ground electrode by 0.1 mm to 1.5 mm. A center-electrode-side side surface of the ground electrode noble metal tip projects from a center-electrode-side side surface by 0.15 mm to 0.6 mm. The ground electrode includes chamfered portions. Thickness lengths and widthwise lengths of the respective chamfered portions achieved within a cross section perpendicular to a center axis of the ground electrode are set to 0.2 mm or more.








 
 
  Recently Added Patents
Gemstone
Software self-checking systems and methods
Apparatus for transmitting and receiving data in a wireless communication system and method thereof
Cognitive radio cooperative spectrum sensing method and fusion center performing cognitive radio cooperative spectrum sensing
Method for generating codewords
Method for processing power headroom and terminal thereof
Vaccination with killed but metabolically active (KBMA) protozoans with toll-like receptor agonists
  Randomly Featured Patents
Compton-effect method and system for locating a plane separating two media of different densities
Laryngeal prosthesis
Superscalar processor with multiple register windows and speculative return address generation
Methods and apparatus to facilitate sleeping of infants
Roadway water ramp apparatus
Synchronizing clocks across sub-nets
One transistor memory cell with programmable capacitance divider
Navigation device and position correction method
Method of organizing software design decision instances
Tilted grooved beverage drinking container