Fujifilm corporation (20240114793). PIEZOELECTRIC ELEMENT AND ACTUATOR simplified abstract
Contents
- 1 PIEZOELECTRIC ELEMENT AND ACTUATOR
- 1.1 Organization Name
- 1.2 Inventor(s)
- 1.3 PIEZOELECTRIC ELEMENT AND ACTUATOR - A simplified explanation of the abstract
- 1.4 Simplified Explanation
- 1.5 Potential Applications
- 1.6 Problems Solved
- 1.7 Benefits
- 1.8 Potential Commercial Applications
- 1.9 Possible Prior Art
- 1.10 Unanswered Questions
- 1.11 Original Abstract Submitted
PIEZOELECTRIC ELEMENT AND ACTUATOR
Organization Name
Inventor(s)
Hiroyuki Kobayashi of Kanagawa (JP)
Seigo Nakamura of Kanagawa (JP)
Shinya Sugimoto of Kanagawa (JP)
Tsutomu Sasaki of Kanagawa (JP)
PIEZOELECTRIC ELEMENT AND ACTUATOR - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240114793 titled 'PIEZOELECTRIC ELEMENT AND ACTUATOR
Simplified Explanation
The patent application describes a piezoelectric element with specific characteristics in its structure and composition.
- The piezoelectric element includes a substrate and multiple electrodes and piezoelectric films arranged in a specific order.
- Both piezoelectric films contain PZT doped with a metal element M as the main component.
- One of the piezoelectric films has a spontaneous polarization aligned in the film thickness direction.
- The coercive voltages of the two piezoelectric films satisfy a specific relationship in their polarization-voltage characteristics.
Potential Applications
- Precision sensors
- Actuators in micro-electromechanical systems (MEMS)
Problems Solved
- Enhanced piezoelectric performance
- Improved reliability and stability in applications
Benefits
- Higher sensitivity and response in sensing applications
- Increased efficiency in actuation systems
Potential Commercial Applications
Enhanced Piezoelectric Element for Advanced Sensors and Actuators
Possible Prior Art
No known prior art.
Unanswered Questions
=== How does the specific composition of the piezoelectric films contribute to their performance compared to traditional materials? The article does not delve into the specific mechanisms behind the improved performance of the piezoelectric element due to its composition.
=== Are there any limitations or challenges in scaling up the production of these specialized piezoelectric elements for commercial use? The article does not address the potential challenges or limitations in mass-producing these advanced piezoelectric elements for commercial applications.
Original Abstract Submitted
a piezoelectric element includes a substrate; and a first electrode, a first piezoelectric film, a second electrode, a second piezoelectric film, and a third electrode which are provided on the substrate in this order, in which both the first piezoelectric film and the second piezoelectric film contain pzt having a metal element m doped thereto, as a main component, one piezoelectric film of the first piezoelectric film and the second piezoelectric film has a spontaneous polarization aligned in a film thickness direction, and in a case where in a hysteresis curve showing polarization-voltage characteristics of the one piezoelectric film, a coercive voltage vcf on a positive side and a coercive voltage vcf on a negative side, and in polarization-voltage characteristics of the other piezoelectric film, a coercive voltage vcr on a positive side and a coercive voltage vcr on a negative sid, |vcr+vcr|<|vcf+vcf|−0.2 is satisfied.
