Location History:
- Ijima, JP (1981)
- Komagane, JP (1987 - 1999)
Company Filing History:
Years Active: 1981-1999
Title: Innovations of Yoshihiro Takemura
Introduction
Yoshihiro Takemura is a notable inventor based in Komagane, Japan. He has made significant contributions to the field of motor technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and functionality of spindle motors and brushless DC motors.
Latest Patents
One of his latest patents is a spindle motor with a bearing system that includes fluid sealing and leakage prevention. This invention features a rotor hub that bears a rotational load, along with lubricant-containing bearing systems that are rotatably supported by the rotor hub. The design ensures that at least a portion of the rotor hub remains in a clean environment, with the motor being substantially sealed by a sealing unit. The spindle motor incorporates a leakage prevention unit that stops lubricant from leaking out of the bearing systems when centrifugal forces are exerted on it.
Another significant patent is for a slotless brushless DC motor. This motor design includes thin, flat coils that are fixed to the inner surface of a thin insulating cover attached to the cylindrical inner surface of the stator core. The arrangement of the coils reduces the air gap, thereby increasing rotor efficiency and minimizing the axial length of the motor. The coils can be connected in either a Y-configuration or a Δ-configuration, enhancing the motor's performance.
Career Highlights
Yoshihiro Takemura has worked with prominent companies in the industry, including Shinano Tokki Corporation and Nidec Corporation. His experience in these organizations has contributed to his expertise in motor technology and innovation.
Collaborations
Throughout his career, Takemura has collaborated with talented individuals such as Osamu Wada and Kazuto Miyajima. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Yoshihiro Takemura's contributions to motor technology through his innovative patents demonstrate his commitment to advancing engineering solutions. His work continues to influence the industry and inspire future innovations.