Resources Contact Us Home
Bubble-ink jet print head and fabrication method thereof

Image Number 4 for United States Patent #7320513.

A bubble-ink jet print head includes: a substrate having ink chambers to store ink and resistance heat emitting bodies to heat ink disposed thereover; and an ink supply passage which penetrates the substrate and which is connected with the ink chambers. The ink supply passage includes: a first trench formed at a first surface of the substrate in a first pattern having a separating distance from at least one of inlets of the ink chambers and connecting portions between the adjacent ink chambers, the first surface of the substrate having the ink chambers disposed thereover, and a second trench formed at a second surface of the substrate in a second pattern, having one of an area equal to and an area smaller than that of the first trench in the range of the first pattern of the first trench, and in communication with the first trench.

  Recently Added Patents
Method of manufacturing III-nitride crystal
Active constant power supply apparatus
Semiconductor device having a triple gate transistor and method for manufacturing the same
Anti-fake battery pack and identification system thereof
Preparation and its use of derivatization reagent for detecting L-carnitine or D-carnitine
Electrode material and use thereof for production of electrochemical cells
Video-recording reservation management apparatus, method, program, and system
  Randomly Featured Patents
Liquid crystal display device
Electronic device
Micro-grooves for the design of wideband clinical ultrasonic transducers
Storm panel system with continuous run rails and spring clips
Hub connector for tubes in toy construction set
Bow and spring hinge assembly for eyeglasses
Flexible, corrosion resistant, thermosetting metal coating compositions
Reverse mowing prevention device
Low loss optical fiber designs for confining optical power to low-doped regions