Katsuyuki Doi

Title: Katsuyuki Doi: Innovator in Lighting Technology

Introduction

Katsuyuki Doi is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of lighting technology, holding a total of 4 patents. His innovative designs focus on enhancing the functionality and efficiency of lighting devices.

Latest Patents

Doi's latest patents include a "Lighting device and luminaire capable of determining a turned-off state of a load connected thereto when power supply is off." This invention features a voltage detector that outputs a detection voltage corresponding to the DC voltage from a power supply circuit. A state determiner assesses whether the light source is turned on or off, while a power controller manages the DC power based on this determination. Additionally, he has developed a "Lighting device and lighting fixture using same," which incorporates a rectifier circuit, a conversion circuit, a constant current circuit, and a control circuit to output a DC current effectively.

Career Highlights

Katsuyuki Doi is currently associated with Panasonic Intellectual Property Management Co., Ltd. His work at this esteemed company has allowed him to push the boundaries of lighting technology and contribute to advancements in the field.

Collaborations

Doi has collaborated with notable coworkers, including Masato Himeda and Hiroyuki Asano. Their combined expertise has fostered an environment of innovation and creativity in their projects.

Conclusion

Katsuyuki Doi's contributions to lighting technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the development of efficient lighting solutions.