Masahiko Yoshino

Title: Masahiko Yoshino: Innovator in Semiconductor Light Emitting Devices

Introduction

Masahiko Yoshino is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of semiconductor light emitting devices, holding a total of 13 patents. His work focuses on enhancing color reproducibility and brightness in image display technologies.

Latest Patents

Yoshino's latest patents include a groundbreaking light emitting device designed to provide a semiconductor light emitting device capable of achieving broad color reproducibility for entire images without compromising brightness. This innovative device features a light source on a backlight for color image display, incorporating a solid light emitting device that emits light in the blue or deep blue region, or in the ultraviolet region. The device also utilizes phosphors, specifically a green emitting phosphor and a red emitting phosphor. Notably, these phosphors are characterized by a rate of change of the emission peak intensity at 100° C. to the emission intensity at 25° C., which is at most 40% when the excitation light wavelength is 400 nm or 455 nm.

Career Highlights

Throughout his career, Yoshino has worked with notable companies such as Mitsubishi Chemical Corporation and Citizen Electronics Co., Ltd. His experience in these organizations has allowed him to refine his expertise in semiconductor technologies and contribute to advancements in the field.

Collaborations

Yoshino has collaborated with esteemed colleagues, including Naoto Kijima and Byungchul Hong. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Masahiko Yoshino's contributions to semiconductor light emitting devices have significantly impacted the industry. His innovative patents and collaborations highlight his dedication to advancing technology in image display systems.