Tsuzumi Higashiyama

Title: Tsuzumi Higashiyama: Innovator in Semiconductor Light Emitting Devices

Introduction

Tsuzumi Higashiyama is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, particularly in light emitting devices. With a total of two patents to his name, Higashiyama's work has the potential to impact various applications in lighting and display technologies.

Latest Patents

Higashiyama's latest patents include a semiconductor light emitting device and a semiconductor light emitting module. The first patent describes a light emitting device that features a semiconductor light emitting element emitting excitation light with a peak wavelength between 440 to 450 nm. This device also includes a fluorescent body layer that is excited by the emitted light, containing two types of fluorescent bodies that emit light in the ranges of 540 to 575 nm and 590 to 605 nm. The intensity of the radiation light from the semiconductor element is designed to be significantly lower than that of the combined light from the fluorescent bodies.

The second patent focuses on a light-emitting device that incorporates an ultraviolet light LED sealed within a package. This LED is bonded to a substrate using an alloy bonding material and is enclosed in a gas that contains oxygen. The lid member of the package is hermetically bonded to the substrate and allows the ultraviolet light emitted from the LED to pass through.

Career Highlights

Throughout his career, Tsuzumi Higashiyama has worked with prominent companies, including Stanley Electric Co., Ltd. His experience in the industry has allowed him to develop innovative technologies that enhance the performance and efficiency of light emitting devices.

Collaborations

Higashiyama has collaborated with notable colleagues such as Masaki Odawara and Kenji Ikeda. These partnerships have contributed to the advancement of his research and the successful development of his patents.

Conclusion

Tsuzumi Higashiyama is a distinguished inventor whose work in semiconductor light emitting devices showcases his innovative spirit and technical expertise. His contributions to the field are poised to influence future advancements in lighting technology.