Location History:
- Hirakata, JP (1994)
- Osaka, JP (2005)
- Katano, JP (2004 - 2012)
Company Filing History:
3 out of 1,623 
1 out of 16,453 
1 out of 394 
Years Active: 1994-2012
Title: Kazuo Sawada: Innovator in Acoustic Wave Technology
Introduction
Kazuo Sawada is a prominent inventor based in Katano, Japan, known for his significant contributions to acoustic wave technology. With a total of 5 patents, he has developed innovative solutions that enhance the efficiency and functionality of acoustic wave sensors and motors.
Latest Patents
One of his latest inventions is an acoustic wave sensor designed to detect the distance and orientation of objects using acoustic waves. This sensor utilizes an acoustic wave generating device that creates waves by applying thermal impact to the air, eliminating mechanical vibrations. The use of an electric capacitance microphone allows for the conversion of pressure variations due to acoustic waves into electrical signals. This design reduces dead zones caused by reverberation, thereby increasing the angular sensitivity of the sensor compared to traditional piezoelectric devices.
Another notable patent is the energy recovery type surface acoustic wave motor. This motor improves energy efficiency during energy recovery and supply by adjusting phase changes. It consists of a surface acoustic wave substrate, a slider under applied pressure, and driving interdigital electrodes that generate driving surface acoustic waves. The motor also features recovery interdigital electrodes that harness unused energy to generate additional surface acoustic waves, along with phase adjusting means to synchronize the phases of the waves.
Career Highlights
Kazuo Sawada has had a distinguished career, working with renowned companies such as Matsushita Electric Works, Ltd. and Panasonic Corporation. His experience in these organizations has contributed to his expertise in developing advanced acoustic technologies.
Collaborations
Throughout his career, Sawada has collaborated with notable colleagues, including Kenji Sasaki and Yoshiyuki Uchinono. These partnerships have fostered innovation and the exchange of ideas in the field of acoustic wave technology.
Conclusion
Kazuo Sawada's work in acoustic wave technology has led to significant advancements in sensor and motor efficiency. His innovative patents reflect a commitment to enhancing the capabilities of acoustic devices, making him a key figure in this field.