Daisuke Sawada

Title: Daisuke Sawada: Innovator in Induction Heating Technology

Introduction

Daisuke Sawada is a prominent inventor based in Hyogo, Japan. He has made significant contributions to the field of induction heating technology, holding two patents that showcase his innovative approach to improving cooking appliances.

Latest Patents

One of his latest patents is an induction heating device. This device includes a rectifying circuit that rectifies an AC power supply, a smoothing capacitor that smooths the rectified output to obtain a DC power supply, and two inverters composed of a heating coil, a resonance capacitor, and a switching element. These inverters are connected to the smoothing capacitor in parallel. The device also features oscillating circuits that supply drive signals to the switching elements, along with a controller that manages the drive of these circuits. The controller alternately drives the oscillating circuits and controls the drive time ratio to ensure that the power change amount generated during switching is within a predetermined limit.

Another notable patent is for an induction heating cooker. This cooker addresses the limitations of conventional models that operate two inverters simultaneously with only one input current detecting circuit. Sawada's invention allows for better measurement and control of input currents to each inverter, enhancing feedback control on input currents. By fixing the operating frequency for the inverter with less input power and performing feedback control for the inverter with greater input power, the cooking performance is significantly improved.

Career Highlights

Daisuke Sawada is currently employed at Panasonic Intellectual Property Management Co., Ltd. His work focuses on advancing induction heating technologies, which have practical applications in modern cooking appliances. His innovative designs have the potential to enhance energy efficiency and cooking precision.

Collaborations

Throughout his career, Sawada has collaborated with notable colleagues, including Yuji Fujii and Keiko Isoda. These partnerships have contributed to the development of cutting-edge technologies in the field of induction heating.

Conclusion

Daisuke Sawada is a key figure in the advancement of induction heating technology, with patents that reflect his innovative spirit and dedication to improving cooking appliances. His contributions continue to influence the industry and enhance user experiences in the kitchen.