Patent Analysis of Piezoelectric Motor

• Main Authors: Chung-Ping Yang, 楊仲平
• Other Authors: Yung -Ting
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/18342608017106995531

碩士 === 中原大學 === 光機電及資電控產業研發碩士專班 === 100 === Piezoelectric material has an interactive energy converting feature between electrical and mechanical momentum actions. The motor is made by piezoelectric material usually called Ultrasonic Motor with the feasures of small size, light weight, fast response, simple structure, low influence of magnetic field and so on. This report makes use of patent analysis methodology to discover the development of piezoelectric ultrasonic motor. European Patent Authority's patent database system is used to investigate the similar type of piezoelectric ultrasonic motor. The patent management plan is built and adopted with eight items of patent analyses including patent quantities, competitive countries, competitive holders, inventors, patent citation, IPC classification and patent technology. These analytical results obtain the competitive and creative quantitative performance of piezoelectric ultrasonic motor technology from variety of countries, companies and inventors. All analyses indicate the Japanese produce a great of amount of patents much higher than other countries. In particular, the most superior patent producer is MATSUSHITA ELECTRIC IND CO LTD. All patents and analyses information can provide any enterprises and engineers as important reference documents for patent application and avoidance of patent infringement, which is instrumental to new research development and time saving. Moreover, this approach is useful for the enterprises to fully understand the core competition of other competitors.