Masao Namai

Title: The Innovative Mind of Masao Namai

Introduction

Masao Namai, an inventive mind from Nitta-machi, Japan, has made significant contributions to the field of engineering through his patented innovations. With a total of five patents, Namai has demonstrated a commitment to advancing technology, particularly in motor-generator systems and compressors.

Latest Patents

Namai's most recent patents showcase his ingenuity and problem-solving abilities. One such invention is the "Control System for Motor-Generator." This system enables a motor-generator to operate as a three-phase magnet-type synchronous motor after the engine starts, while functioning as a brushless DC motor prior to engine startup. A unique aspect of this invention is the rotated-position detecting device that identifies the rotor's position based on induced voltage in the three-phase coils, eliminating the need for sensors and simplifying the assembly process.

Another notable patent is the "Drive Apparatus for Vibrating-Type Compressor." This innovative drive apparatus includes a DC power source and an inverter that converts direct current to alternating current. The inverter control unit manages the alternating current supplied to the compressor, intelligently integrating a first power supply featuring a DC/DC converter and a second power supply equipped with an AC/DC converter. Additionally, a diode OR circuit connects these power supplies, enabling efficient control of voltage output.

Career Highlights

Namai’s professional journey includes notable stints at various companies, including Sawafuji Electric Co., Ltd. His work at these institutions has been instrumental in developing practical applications of his patented technologies in the industry.

Collaborations

Throughout his career, Masao Namai has had the opportunity to collaborate with skilled professionals such as Naoki Akazawa and Toru Yoshioka. These collaborations have likely influenced his innovative approach and contributed to the successful development of his inventions.

Conclusion

Masao Namai exemplifies the spirit of innovation and dedication in the field of engineering. With five patents to his name, his work in motor-generator systems and compressors demonstrates a profound understanding of technology and its potential. As he continues to innovate, Namai remains a notable figure in the realm of inventive engineering.