Location History:
- Fukaya, JP (2017)
- Tochigi, JP (2017 - 2019)
Company Filing History:
Years Active: 2017-2019
Title: Hirofumi Tani: Innovator in Illumination Technology
Introduction
Hirofumi Tani is a notable inventor based in Tochigi, Japan. He has made significant contributions to the field of illumination technology, holding a total of 3 patents. His innovative designs focus on enhancing the efficiency and effectiveness of lighting devices.
Latest Patents
One of Tani's latest patents is an illumination apparatus that aims to create a thin device while increasing the efficiency of light extraction. This invention features light-emitting structures with a blue light-emitting element embedded in a transparent resin with a convex surface. The design includes a substrate where these structures are arranged two-dimensionally, a diffuser plate to spread the blue light, and a fluorescent sheet that generates white light from the blue light emitted.
Another significant patent is a phosphor sheet designed to minimize chromaticity shift and corrosion linked to sulfide phosphor particles. This sheet is made from a resin composition containing covered phosphor particles, a polymerizable compound, and a polymerization initiator. The covered phosphor particles are coated with silicon dioxide films, which help prevent the emission of sulfur-based gases and reduce chromaticity shifts, even when the edges of the phosphor layer are exposed.
Career Highlights
Hirofumi Tani is currently employed at Dexerials Corporation, where he continues to develop innovative lighting solutions. His work has been instrumental in advancing the technology used in illumination devices, making them more efficient and reliable.
Collaborations
Tani collaborates with talented coworkers, including Yasushi Ito and Yoshifumi Ueno. Their combined expertise contributes to the innovative projects at Dexerials Corporation.
Conclusion
Hirofumi Tani is a prominent figure in the field of illumination technology, with a focus on creating efficient lighting solutions. His patents reflect his commitment to innovation and excellence in this vital area of technology.