Location History:
- Gunma-ken, JP (2004)
- Gunma, JP (1992 - 2005)
- Nitta-gun, JP (2003 - 2006)
Company Filing History:
Years Active: 1992-2006
Title: Innovative Contributions of Masaaki Takezawa in Motor Technology
Introduction
Masaaki Takezawa, an influential inventor based in Nitta-gun, Japan, has made significant strides in the field of motor technology. With a total of nine patents to his name, he has developed groundbreaking ideas that enhance the efficiency and performance of electrical systems.
Latest Patents
Among his notable contributions are two significant patents: the Synchronous Induction Motor and Manufacturing Method, and the Hermetic Electric Compressor. The synchronous induction motor he designed includes features for improved assembly of the rotor, significantly reduced production costs, and enhanced operational performance. This innovative motor incorporates a plurality of die-cast secondary conductors around a rotor yoke, along with permanently secured end rings that simplify manufacturing. Additionally, permanent magnets are strategically placed within slots penetrating the rotor yoke, closing the openings with non-magnetic end surface members to enhance efficiency.
The second notable patent is for a brushless DC motor and refrigerant compressor, which showcases a concentrated winding type motor. It features a stator built from laminations of ferromagnetic material, with spaced teeth extended inwardly. Each tooth includes a drive coil, wound with a spacer to minimize stress during the winding process. Once the motor is finalized, this spacer is removed to create a magnetic pole of the stator, optimizing the motor's design for better performance.
Career Highlights
Masaaki Takezawa's professional journey is marked by his tenure at Sanyo Electric Co., Ltd., where his inventive genius has flourished. His expertise in electrical engineering and dedication to innovation have played a crucial role in the advancement of motor technology.
Collaborations
Throughout his career, Masaaki has collaborated with distinguished coworkers, including Kazuhiko Arai and Keijiro Igarashi. Together, they have sought to push the boundaries of electrical engineering and contribute significantly to their field.
Conclusion
Masaaki Takezawa's innovative contributions to motor technology demonstrate his commitment to excellence and progression within the industry. His patents not only highlight his creativity but also stand as significant advancements that influence modern electrical systems. As an inventor, he continues to inspire the next generation of engineers and innovators.