Shin Hiraoka

Title: Innovations of Shin Hiraoka in Semiconductor Technology

Introduction

Shin Hiraoka is a prominent inventor based in Ushiku, Japan. He has made significant contributions to the field of semiconductor technology, particularly in the development of white light-emitting devices. With a total of 7 patents to his name, Hiraoka's work has advanced the capabilities of light-emitting semiconductor devices.

Latest Patents

Hiraoka's latest patents include innovative designs for white light-emitting semiconductor devices. One of his notable inventions focuses on improving the reproducibility of bright red light in these devices. This technology outputs light that includes blue, green, and red components, utilizing both light-emitting semiconductor elements and phosphors for wavelength conversion. The resulting light spectrum achieves a maximum wavelength between 615-645 nm, with a normalized intensity at 580 nm that meets high standards for color rendering evaluation.

Another significant patent aims to enhance the special color rendering index R9. This invention provides controllable parameters that optimize the performance of white-light emitting semiconductor devices. By incorporating a phosphor as a light-emitting material and a light-emitting semiconductor element as an excitation source, Hiraoka's design ensures that the intensity at 640 nm of the emission spectrum is 100-110% of the intensity of standard light for color rendering evaluation.

Career Highlights

Shin Hiraoka is currently associated with Mitsubishi Chemical Corporation, where he continues to innovate in the field of semiconductor technology. His work has not only contributed to advancements in lighting technology but has also positioned him as a key figure in the industry.

Collaborations

Hiraoka has collaborated with notable colleagues such as Hiroaki Okagawa and Takahide Joichi. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and further innovation in semiconductor technology.

Conclusion

Shin Hiraoka's contributions to the field of semiconductor technology, particularly in white light-emitting devices, demonstrate his commitment to innovation. His patents reflect a deep understanding of the complexities involved in light emission and color rendering, making him a significant inventor in this domain.