Location History:
- Nagaoka, JP (1993)
- Niigata, JP (1997)
Company Filing History:
2 out of 4,048 
1 out of 256 
1 out of 832,880 Years Active: 1993-1997
Title: Youichi Kimura: Innovator in Noise Filtering and Ultrasonic Motor Control
Introduction
Youichi Kimura is a notable inventor based in Niigata, Japan. He has made significant contributions to the fields of noise filtering and ultrasonic motor control. With a total of 2 patents, his work showcases innovative solutions that enhance electronic device performance.
Latest Patents
One of Kimura's latest patents is a noise filter comprising a soft magnetic alloy ribbon core. This noise filter includes an annular magnetic core made of a soft magnetic alloy ribbon primarily composed of iron and containing boron along with at least one element selected from a group that includes titanium, zirconium, hafnium, niobium, tantalum, molybdenum, and tungsten. Notably, at least 50% of the soft magnetic alloy structure consists of body-centered cubic structured fine grains with an average grain size of 30 nanometers or below. The design also features a casing for accommodating the magnetic core, an insulating plate, a pair of coils separated by the insulating plate, and an electronic circuit for connecting the core elements.
Another significant patent is a control device for an ultrasonic motor. This device controls the ultrasonic motor's operation based on a logical AND operation between a control pulse, which has a duty ratio changing from 100% to 0% according to the motor's moving position, and a driving signal that resonates at the ultrasonic motor's frequency. This innovative approach allows the ultrasonic motor to start at maximum speed and gradually reduce its speed until it reaches a target position, ensuring precise stopping.
Career Highlights
Throughout his career, Youichi Kimura has worked with prominent companies, including Alps Electric Co., Ltd. and the Research Development Corporation of Japan. His experience in these organizations has contributed to his expertise in developing advanced technologies.
Collaborations
Kimura has collaborated with notable coworkers such as Kazumasa Ohnishi and Masayuki Tanaka. Their joint efforts have likely played a role in the successful development of his innovative patents.
Conclusion
Youichi Kimura's contributions to noise filtering and ultrasonic motor control demonstrate his commitment to innovation in technology. His patents reflect a deep understanding of materials and electronic systems, making him a valuable figure in the field of invention.