Company Filing History:
Years Active: 2008
Title: Yoneichi Hirata: Innovator in Phosphorescent Phosphors
Introduction
Yoneichi Hirata is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of phosphorescent materials, particularly through his innovative patents. With a total of two patents to his name, Hirata's work focuses on enhancing the performance of phosphorescent phosphors.
Latest Patents
Hirata's latest patents include advancements in phosphorescent phosphors that exhibit excellent afterglow luminance characteristics. His first patent describes a phosphorescent phosphor that performs exceptionally well under low illumination intensity, surpassing conventional strontium aluminate phosphorescent phosphors. The specific requirements for this phosphor include a ratio of 0.015 < Eu/(Sr+Eu+Dy) ≤ 0.05, 0.4 ≤ Dy/Eu ≤ 2, and 2.02 ≤ Al/(Sr+Eu+Dy) ≤ 2.4. His second patent also focuses on a phosphorescent phosphor with remarkable afterglow luminance characteristics, particularly at 60 and 90 minutes after excitation cessation. The requirements for this phosphor include 0.015 < Eu/(Sr+Ba+Eu+Dy) ≤ 0.05, 0.3 ≤ Dy/Eu ≤ 2, 0.03 ≤ Ba/(Sr+Ba) ≤ 0.2, and 2.1 ≤ Al/(Sr+Ba+Eu+Dy) ≤ 2.9.
Career Highlights
Hirata is currently employed at Nemoto & Company, Ltd., where he continues to develop innovative materials. His work has positioned him as a key figure in the advancement of phosphorescent technology.
Collaborations
Hirata collaborates with talented coworkers, including Tomoya Sakaguchi and Nobuyoshi Takeuchi. Their combined expertise contributes to the innovative projects at Nemoto & Company, Ltd.
Conclusion
Yoneichi Hirata's contributions to the field of phosphorescent phosphors demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of material science and a drive to improve phosphorescent technology.