This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignees: Korea Institute of Science and Technology, Regents of the University of Minnesota. Active years: 1998-1999.
Company Filing History:
1 out of 2,244 
1 out of 2,364 
Years Active: 1998-1999
Title: Innovations of Joon Han Kim
Introduction
Joon Han Kim is a notable inventor based in Seoul, South Korea. He has made significant contributions to the field of micromechanical devices, particularly through his innovative patents. With a total of 2 patents, his work showcases the intersection of advanced materials and engineering.
Latest Patents
One of his latest patents is the PZT microdevice, which is a micromechanical device or microactuator that utilizes the piezoelectric, pyroelectric, and electrostrictive properties of ferroelectric thin film ceramic materials such as PZT. This microdevice features a device substrate and a deflectable component that is mounted for deflection on the substrate. The deflectable component includes a sensor/actuator with first and second electrodes and a piezoelectric thin film positioned between them. The invention also encompasses a method for fabricating such micromechanical devices or microactuators.
Another significant patent is the method for fabricating ferroelectric thin film. This process involves sputter depositing a PZT ferroelectric thin film on an electrode without microcracks while preventing oxygen and Pb ion deficiencies at the electrode interface. The method includes forming a buffer layer that contains a sufficient amount of a volatile Pb component and oxygen to absorb the energy of sputter particles effectively.
Career Highlights
Joon Han Kim has worked with prestigious institutions such as the Korea Institute of Science and Technology and the Regents of the University of Minnesota. His experience in these organizations has allowed him to advance his research and contribute to the development of innovative technologies.
Collaborations
Throughout his career, Joon Han Kim has collaborated with notable individuals, including Dennis L. Polla and Tae Song Kim. These collaborations have further enriched his work and expanded the impact of his inventions.
Conclusion
Joon Han Kim's contributions to the field of micromechanical devices and ferroelectric materials highlight his innovative spirit and dedication to advancing technology. His patents reflect a commitment to solving complex engineering challenges and improving device functionality.