Keisuke Fukuda

Title: Keisuke Fukuda: Innovator in LED Technology

Introduction

Keisuke Fukuda is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of LED technology, holding a total of 5 patents. His innovative approaches have paved the way for advancements in LED drive methods and devices.

Latest Patents

Fukuda's latest patents include a method and device for driving LEDs. The LED drive method utilizes a drive current to operate the LED. It incorporates a voltage conversion unit, which consists of a coil and a first switch. This unit converts an external voltage into a first voltage, a DC voltage, by controlling the first switch during an on-pulse period of a first drive signal. Additionally, a constant current drive unit is provided with the first voltage, generating a drive current based on a second drive signal. Another notable patent is the LED lighting device, which features a lighting circuit that supplies current to an LED. This device includes a dimmer that generates a PWM signal to control the current supply to the LED. The dimmer feedback-controls the PWM signal by comparing the output current to a target current and feedforward-controls it according to fluctuations in the input voltage from a commercial power supply.

Career Highlights

Throughout his career, Keisuke Fukuda has worked with notable companies, including Renesas Electronics Corporation. His work has significantly impacted the development of LED technologies, enhancing their efficiency and functionality.

Collaborations

Fukuda has collaborated with esteemed colleagues such as Motoaki Suzuki and Mamoru Kitamura. Their combined expertise has contributed to the successful development of innovative LED solutions.

Conclusion

Keisuke Fukuda's contributions to LED technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in lighting solutions, showcasing the importance of innovation in technology.