Location History:
- Kiryu, JP (2013)
- Gumma, JP (2011 - 2014)
Company Filing History:
Years Active: 2011-2014
Title: The Innovations of Yoji Unoki
Introduction
Yoji Unoki is a notable inventor based in Gumma, Japan, recognized for his contributions to the field of rotary electric machines. With a total of five patents to his name, Unoki has made significant advancements in motor efficiency and design.
Latest Patents
One of Unoki's latest patents involves a rotary electric machine that features a stator with windings arranged around multiple main poles of a stator core. This innovative design includes a hybrid type rotor that maintains an air gap between the stator and rotor, with a step angle for the rotor set at approximately 4.09 degrees. This configuration allows for a larger rotation angle of the rotor when excited by an input pulse signal, compared to typical motors that have a step angle of about 1.8 degrees. As a result, the rotor can achieve higher speeds, thereby increasing motor efficiency. The design ensures that the motor output is comparable to that of conventional motors without requiring high precision in maintaining the air gap. This advancement allows for the use of inexpensive metal bearings to support the rotor, ensuring performance that meets or exceeds that of traditional motors while significantly reducing costs.
Career Highlights
Yoji Unoki is currently employed at Nidec Servo Corporation, where he continues to innovate and develop advanced technologies in electric machinery. His work has contributed to the company's reputation as a leader in the field.
Collaborations
Unoki has collaborated with notable colleagues such as Shigeaki Terashita and Masafumi Sakamoto, further enhancing the innovative capabilities of his team.
Conclusion
Yoji Unoki's contributions to rotary electric machines exemplify the impact of innovative thinking in engineering. His patents not only improve motor efficiency but also reduce production costs, showcasing the importance of innovation in technology.