This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignee: Nichia Corporation. Active years: 2022.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2022
Title: Takafumi Sumie: Innovator in Ceramic Complex Light Emitting Devices
Introduction
Takafumi Sumie is a notable inventor based in Anan, Japan. He has made significant contributions to the field of ceramic complex light emitting devices. With a focus on improving optical characteristics and luminous efficiency, his work has garnered attention in the industry.
Latest Patents
Takafumi Sumie holds 2 patents that showcase his innovative approach. His latest patents include a "Ceramic complex light emitting device using the same" and a "method for producing ceramic complex." These inventions provide a ceramic complex that has improved optical characteristics, including luminous efficiency. The method involves preparing a molded body containing rare earth aluminum garnet fluorescent material, aluminum oxide, and lutetium oxide, followed by calcining the molded body in an air atmosphere to achieve a ceramic complex with a relative density of 90% or more and less than 100%.
Another patent focuses on a "ceramic complex, light source for projector, and method for producing ceramic complex." This invention aims to enhance luminous efficiency and includes a ceramic complex with a rare earth aluminate fluorescent material and aluminum oxide of high purity. The design also incorporates voids to optimize performance.
Career Highlights
Takafumi Sumie is currently associated with Nichia Corporation, a leading company in the field of lighting and materials. His work at Nichia has allowed him to push the boundaries of ceramic technology and contribute to advancements in light emitting devices.
Collaborations
Throughout his career, Takafumi has collaborated with esteemed colleagues such as Shozo Taketomi and Seigo Sunagawa. These collaborations have further enriched his research and development efforts.
Conclusion
Takafumi Sumie's innovative work in ceramic complex light emitting devices has made a significant impact in the field. His patents reflect a commitment to enhancing luminous efficiency and optical characteristics, positioning him as a key figure in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile