Hiroyuki Negishi

Title: Hiroyuki Negishi: Innovator in Optical Pickup Devices

Introduction

Hiroyuki Negishi is a notable inventor based in Ora-gun, Japan. He has made significant contributions to the field of optical technology, particularly in the development of optical pickup devices. With a total of 2 patents to his name, Negishi's work has had a considerable impact on the industry.

Latest Patents

Negishi's latest patents include innovative designs for optical pickup devices. The first patent describes an optical pickup device that features a light-emitting element emitting laser light, a photodetector monitoring the state of the laser light, and a reflect mirror designed to prevent erroneous operations. This design incorporates a rough surface portion on the reflect mirror to enhance functionality. The second patent focuses on a laser driving integrated circuit mounted in an optical housing. This design integrates a wiring pattern for an actuator line and a laser drive line on the same flexible wiring board, ensuring efficient operation and signal management.

Career Highlights

Hiroyuki Negishi is currently employed at Sanyo Electric Co., Ltd., where he continues to innovate in the field of optical technology. His work has been instrumental in advancing the capabilities of optical devices, making them more reliable and efficient.

Collaborations

Negishi has collaborated with notable colleagues, including Hisayuki Ito and Minoru Sato. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Hiroyuki Negishi's contributions to optical pickup devices exemplify his dedication to innovation in technology. His patents reflect a commitment to enhancing the functionality and reliability of optical systems.