This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignee: Kaneka Corporation. Active years: 2014-2018.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Otsu, JP (2014 - 2015)
- Kamikita-gun, JP (2018)
Company Filing History:
Years Active: 2014-2018
Title: Hirotaka Umezaki: Innovator in Organic Electroluminescent Technology
Introduction
Hirotaka Umezaki is a prominent inventor based in Otsu, Japan. He has made significant contributions to the field of organic electroluminescent technology. With a total of 3 patents to his name, Umezaki's work focuses on enhancing the performance and efficiency of light-emitting devices.
Latest Patents
One of Umezaki's latest patents is for a white light-emitting organic EL panel and method for producing the same. This innovative panel boasts high color rendering properties and excellent hue stability. It features a light-emitting functional layer that includes a blue light anode side unit, a connection layer, and a red-green light cathode side unit. The connection layer effectively injects electrons and holes when current is applied, allowing the panel to emit white light with a general color rendering index and a special color rendering index greater than or equal to 90.
Another notable patent is for a high-luminance, long-life laminated organic electroluminescent element. This element consists of multiple light-emitting units laminated between positive and negative electrodes. A linking layer is strategically placed between the light-emitting units, enhancing the overall performance of the device. The composition of the linking layer includes various metals and an electrical insulating non-semiconductive substance, ensuring optimal functionality.
Career Highlights
Hirotaka Umezaki is currently employed at Kaneka Corporation, where he continues to push the boundaries of organic electroluminescent technology. His work has garnered attention for its innovative approach and practical applications in the field of lighting and display technologies.
Collaborations
Umezaki collaborates with talented individuals such as Naomi Nagai and Masami Nishida. Their combined expertise contributes to the advancement of research and development in organic electroluminescent devices.
Conclusion
Hirotaka Umezaki's contributions to organic electroluminescent technology highlight his role as a leading inventor in the field. His innovative patents and ongoing work at Kaneka Corporation continue to shape the future of lighting solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile