Riichi Ogawara

Title: The Innovations of Riichi Ogawara

Introduction

Riichi Ogawara is a notable inventor based in Ageo, Japan. He has made significant contributions to the field of phosphor technology, holding a total of 2 patents. His work focuses on developing novel materials that enhance the efficiency and safety of phosphors used in various applications.

Latest Patents

Ogawara's latest patents include a sulfur-containing phosphor coated with a ZnO compound. This innovative phosphor effectively suppresses the adverse effects of hydrogen sulfide gas generated by the reaction between a sulfur-containing phosphor and moisture in the air. The configuration features a ZnO compound containing zinc and oxygen on the surface of a sulfur-containing phosphor with a sulfur-based host material. Another significant patent is for a green emitting phosphor, which allows for increased internal quantum efficiency. This phosphor comprises a mother crystal containing strontium, gallium, and sulfur, along with a luminescent center, characterized by a specific ratio of diffraction intensities in its XRD pattern.

Career Highlights

Riichi Ogawara is associated with Mitsui Mining & Smelting Co., Ltd., where he continues to innovate in the field of phosphor technology. His work has contributed to advancements in materials that are essential for various lighting and display applications.

Collaborations

Ogawara has collaborated with notable colleagues, including Jun-ichi Itoh and Asuka Sasakura. Their combined expertise has fostered a productive environment for research and development in phosphor technologies.

Conclusion

Riichi Ogawara's contributions to phosphor technology through his innovative patents demonstrate his commitment to advancing materials science. His work not only enhances the efficiency of phosphors but also addresses critical safety concerns in their application.