Joji Noie

Title: Joji Noie: Innovator in Motor Drive Technology

Introduction

Joji Noie is a prominent inventor based in Ota, Japan, known for his contributions to motor drive technology. With a total of 6 patents to his name, Noie's work focuses on enhancing the efficiency and functionality of motor systems. His innovative designs have made significant impacts in the field of electronics and motor control.

Latest Patents

One of Noie's latest patents is a motor drive circuit that provides a low-speed start function and a soft start function. This invention includes a first pulse generation circuit that generates a first pulse signal, with a duty ratio that increases as the drive voltage corresponding to the target rotation speed of the motor increases. Additionally, a second pulse generation circuit generates a second pulse signal with a different duty ratio. The drive control circuit supplies a drive current to the motor coil at the second duty ratio to start the motor's rotation and then switches to the first duty ratio after a predetermined time. Another notable patent is a motor drive circuit designed to prevent braking when the power supply voltage is lower than a predetermined level. This circuit includes first and second power supply lines connected to a power supply and an H-bridge circuit, which is controlled to avoid creating a regeneration path when the voltage is insufficient.

Career Highlights

Throughout his career, Joji Noie has worked with notable companies such as Sanyo Semiconductor Co., Ltd. and Sanyo Electric Co., Ltd. His experience in these organizations has contributed to his expertise in motor technology and circuit design.

Collaborations

Noie has collaborated with talented individuals in the field, including Toshiyuki Imai and Tetsuya Yoshitomi. These partnerships have fostered innovation and the development of advanced motor drive solutions.

Conclusion

Joji Noie's contributions to motor drive technology exemplify his dedication to innovation and improvement in electronic systems. His patents reflect a deep understanding of motor control, making him a significant figure in the industry.