Koji Niiyama

Title: Koji Niiyama: Innovator in Induction Heating Technology

Introduction

Koji Niiyama is a prominent inventor based in Kobe, Japan. He has made significant contributions to the field of induction heating technology, holding a total of 4 patents. His innovative designs have advanced the efficiency and safety of induction heating appliances.

Latest Patents

Niiyama's latest patents include an induction heater with controlled current to the heating coil. This invention features a detector that can identify the displacement of a load by an ascending force. It does this by measuring the time it takes for the heating output of an inverter to drop from a predetermined level to a first level, and then return to a second level that is larger than the first. This technology allows the detector to differentiate between intentional removal of the load and displacement caused by the ascending force. The induction heater equipped with this detector can reduce the displacement of the load and stop heating when the load is intentionally removed.

Another notable patent is for an induction cooking heater. This device includes a surface, a heating coil for inductionally heating a load pan, and an inverter that supplies high-frequency current to the heating coil. It also features an infrared detector located under the top plate, which detects infrared radiation emitted from the load pan. The cooking heater accurately monitors temperature changes in the load pan by utilizing both infrared detection and heat conduction, ensuring precise temperature control even in the presence of ambient light.

Career Highlights

Koji Niiyama is associated with Matsushita Electric Industrial Co., Ltd., a leading company in the electronics industry. His work has significantly impacted the development of induction heating technologies, making them safer and more efficient for everyday use.

Collaborations

Throughout his career, Niiyama has collaborated with notable colleagues, including Izuo Hirota and Atsushi Fujita. Their combined expertise has contributed to the advancement of innovative technologies in the field.

Conclusion

Koji Niiyama's contributions to induction heating technology exemplify his dedication to innovation and safety. His patents reflect a commitment to improving everyday appliances, making them more efficient and user-friendly.