Tomizo Matsuoka

Title: Innovations by Tomizo Matsuoka: A Pioneer in Phosphor Technology

Introduction

Tomizo Matsuoka is a notable inventor based in Neyagawa, Japan, recognized for his significant contributions to the field of phosphor technology. With an impressive portfolio comprising 25 patents, Matsuoka has developed innovative solutions that enhance the performance and quality of phosphors used in various applications.

Latest Patents

Among his latest inventions is a patent for a **trivalent rare earth ion-containing aluminate phosphor** along with a method for its production and a light-emitting device utilizing the same. This method involves preparing a phosphor raw material containing a granular aluminum compound, heating it in an oxidizing atmosphere to produce an intermediate phosphor, and then cracking and further heating the intermediate in a reducing atmosphere. The careful control of temperatures ensures the production of a high-quality phosphor.

Additionally, he developed a method for producing a **divalent europium-activated phosphor**. This method consists of creating a phosphor host compound which is then reacted with a trivalent europium compound in a reducing atmosphere. This innovative approach minimizes chemical reactions that could affect the luminescent color consistency, ensuring high color purity and repeatability in the final product.

Career Highlights

Tomizo Matsuoka works at **Matsushita Electric Industrial Co., Ltd.**, known for its cutting-edge technological advancements. His expertise and creativity in the field have not only garnered him multiple patents but have also solidified his role as a crucial contributor within the organization. His work fundamentally supports the development of lighting technologies and display systems that rely on phosphor materials.

Collaborations

Throughout his career, Matsuoka has collaborated with esteemed colleagues, including Tsuneharu Nitta and Yosuke Fujita. These partnerships have played an essential role in advancing their joint research and development efforts, leading to notable innovations in phosphor technology.

Conclusion

Tomizo Matsuoka stands out as an influential inventor in the realm of phosphor technology. Through his extensive patent portfolio and collaborative efforts at Matsushita Electric Industrial Co., Ltd., he continues to make strides that enhance the quality and application of phosphors. His innovative contributions are vital for the future of lighting and display technologies, reflecting a commitment to excellence and advancement in his field.