Shouzo Oshio

Title: Shouzo Oshio: Innovator in Phosphor Technology

Introduction

Shouzo Oshio is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of phosphor technology, holding 2 patents that showcase his innovative approach to materials science.

Latest Patents

Oshio's latest patents include a trivalent rare earth ion-containing aluminate phosphor and a method for producing the same, as well as a light-emitting device utilizing this phosphor. The method for producing a trivalent rare earth ion-containing aluminate phosphor involves preparing a phosphor raw material that includes a granular aluminum-containing compound. This raw material is then heated in an oxidizing atmosphere at a predetermined temperature, typically between 1500°C to 1800°C, to produce an intermediate phosphor. After cracking the intermediate phosphor, it is heated in a reducing atmosphere at a temperature ranging from 1400°C to 1800°C. This process allows for the successful creation of the desired phosphor. Additionally, he has developed a method for producing a divalent europium-activated phosphor, which involves reacting a host compound with a trivalent europium compound in a reducing atmosphere. This innovative approach helps to suppress variations in luminescent color among different production lots, ensuring high color purity and repeatability.

Career Highlights

Shouzo Oshio is associated with Matsushita Electric Industrial Co., Ltd., where he has been instrumental in advancing phosphor technology. His work has contributed to the development of high-quality phosphors that are essential in various lighting applications.

Collaborations

Oshio has collaborated with notable coworkers, including Teruaki Shigeta and Tomizo Matsuoka, who have also contributed to advancements in the field of phosphor technology.

Conclusion

Shouzo Oshio's innovative work in phosphor technology has led to significant advancements in the field, particularly through his patented methods and collaborations. His contributions continue to influence the development of high-quality lighting solutions.