This inventor holds 1 USPTO granted patent. Top assignee: Sharp Display Technology Corporation. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Tokiyoshi Umeda: Display Technology Inventor
Introduction
Tokiyoshi Umeda is an inventor associated with Kameyama City, Japan, and Sharp Display Technology Corporation. His patent work concerns display-device design and manufacturing.
Latest Patents
Umeda is credited with 1 patent: “Display device and method of manufacturing display device.” The invention describes a display area divided into three pixel regions, with light-emitting layers arranged across those regions. It also specifies charge-injection layers, including one provided throughout the display area and another limited to the third pixel region, as well as a second photoelectric conversion layer containing a fourth light-emitting layer.
Career Highlights
Umeda’s documented patent contribution focuses on the structure and manufacture of display devices. His work is associated with Sharp Display Technology Corporation.
Collaborations
Umeda’s listed coworkers include Yuto Tsukamoto and Shinichi Kawato.
Conclusion
Tokiyoshi Umeda’s patent reflects his contribution to display technology through a design that coordinates pixel regions, light-emitting layers, and charge-injection layers.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile