LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS

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LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18432596 titled 'LIQUID EJECTION HEAD AND LIQUID EJECTION APPARATUS

Simplified Explanation: The liquid ejection head described in the patent application includes an element substrate with an ejection port row containing ejection ports. These ports have protruding portions towards the center, an energy generation element for liquid ejection, and a pressure chamber with the energy generation element inside. The head has paths for liquid supply and collection, with the protruding portion aligned parallel to the liquid flow direction in the pressure chamber.

The liquid ejection head has an element substrate with an ejection port row.
Ejection ports in the row have protruding portions towards the center.
An energy generation element is present for liquid ejection.
A pressure chamber houses the energy generation element.
Liquid supply and collection paths are integrated into the head.
The protruding portion aligns parallel to the liquid flow direction in the pressure chamber.

Potential Applications: 1. Inkjet printers 2. 3D printing 3. Biomedical devices for precise liquid dispensing

Problems Solved: 1. Precise and controlled liquid ejection 2. Efficient energy generation for liquid ejection 3. Minimization of liquid wastage

Benefits: 1. Improved printing quality 2. Enhanced precision in liquid dispensing 3. Cost-effective liquid ejection technology

Commercial Applications: Liquid ejection heads with this technology can be used in industrial printing, medical device manufacturing, and research laboratories for precise liquid handling applications.

Prior Art: Prior art related to this technology may include patents or research papers on liquid ejection heads, inkjet printing technology, and microfluidics.

Frequently Updated Research: Stay updated on advancements in microfluidics, inkjet printing technology, and precision liquid handling for potential improvements in liquid ejection head technology.

Questions about Liquid Ejection Heads: 1. How does the protruding portion in the ejection port row contribute to the efficiency of liquid ejection? 2. What are the key differences between this liquid ejection head design and traditional inkjet printing technology?

Original Abstract Submitted

A liquid ejection head includes an element substrate provided with an ejection port row in which ejection ports are arrayed. The port includes a protruding portion protruding toward a center of the ejection port, an energy generation element configured to generate energy to eject liquid, and a pressure chamber including the energy generation element thereinside. The head has a liquid supply path for supplying liquid to the pressure chamber, and a liquid collecting path for collecting liquid from the pressure chamber. A direction in which the protruding portion protrudes is substantially parallel to a flow direction of liquid in the pressure chamber flowing from the liquid supply path to the liquid collecting path via the pressure chamber. The flow direction is same direction in the pressure chambers, and is same direction as a relative moving direction of a medium that receives liquid ejected from the liquid ejection head.