Location History:
- Takatsuki, JP (1987)
- Osaka, JP (1989)
- Kyoto, JP (1989)
- Toride, JP (1995 - 1997)
- Aichi-ken, JP (2000)
Company Filing History:
Years Active: 1987-2000
Title: Yoji Takeuchi: Innovator in Fluorescent Substances
Introduction
Yoji Takeuchi is a prominent inventor based in Toride, Japan. He has made significant contributions to the field of materials science, particularly in the development of innovative fluorescent substances. With a total of 6 patents to his name, Takeuchi's work has garnered attention for its practical applications and advancements in technology.
Latest Patents
One of Takeuchi's latest patents involves a novel infrared fluorescent substance. This invention comprises a component represented by the general formula AQO.sub.3 :X, where A is at least one element selected from calcium, strontium, and barium, Q is titanium or zirconium, and X includes elements such as neodymium and ytterbium. This fluorescent substance addresses the shortcomings of traditional phosphate-type fluorescent substances, offering a more affordable option that is light in blue color and high in durability. Another significant patent focuses on an infrared phosphor and a material with latent images. This phosphor is excited by infrared rays and emits infrared rays, featuring a nonacicular particle shape with a size of 4 µm or smaller. It includes an oxoacid salt-containing compound with elements like neodymium, ytterbium, and erbium.
Career Highlights
Yoji Takeuchi is currently associated with Hitachi Maxell, Limited, where he continues to innovate and develop new technologies. His work has not only advanced the field of fluorescent materials but has also contributed to various applications in imaging and optical systems.
Collaborations
Throughout his career, Takeuchi has collaborated with notable colleagues, including Kenji Sumiya and Toshio Oshima. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their respective fields.
Conclusion
Yoji Takeuchi's contributions to the field of fluorescent substances exemplify the spirit of innovation. His patents reflect a commitment to improving technology and addressing industry challenges. Through his work at Hitachi Maxell, he continues to pave the way for future advancements in materials science.