Company Filing History:
1 out of 131,744 
1 out of 832,880 Years Active: 1998
Title: **Innovator Spotlight: Seong-man Jang**
Introduction
Seong-man Jang is a notable inventor based in Anyang, South Korea, recognized for his contributions to the field of electric motor technology. His innovative approach to brushless DC motors has garnered attention in various industries, particularly for applications in computing and scanning devices.
Latest Patents
Jang holds a patent for a brushless DC motor and a method of generation power using it. This patent outlines an improved 10-pole, 9-slot brushless DC motor that serves as a spindle motor in devices like computer hard disk drives and laser scanners. The motor features enhanced performance through reduced cogging torque and improved driving torque. Its design includes a field magnet with an annular permanent magnet composed of 10 radially aligned magnetic poles, which generates a powerful flux field. Additionally, the armature is designed with nine slots and salient poles, with windings connected in three phases. This configuration allows for the effective rotation of the field magnet and contributes to the motor’s short cycle and stable operation. The low cogging torque and minimal torque ripple improve overall torque characteristics, leading to high efficiency.
Career Highlights
Throughout his career, Seong-man Jang has made significant strides within prominent organizations. He has worked at Samsung Electronics Co., Ltd., where he leveraged his expertise in motor technology to drive innovation and technological advancements in electronic devices.
Collaborations
In his professional journey, Jang has collaborated with notable colleagues such as No-yeol Park and Gun-hee Jang. These collaborations have likely fostered a rich exchange of ideas and innovations within their respective fields.
Conclusion
Seong-man Jang stands as a key figure in the development of efficient brushless DC motors. His patented innovations not only enhance the performance of critical devices but also illustrate the importance of ingenuity in the advancement of technology. As industries continue to evolve, inventors like Jang will play a vital role in shaping the future of electrical engineering and its applications.