This inventor holds 3 USPTO granted patents. Top assignees: Nippon Paint Compnay, Ltd., Nippon Paint. Active years: 1977-1981.
Location History:
- Osaka, JA (1977)
- Neyagawa, JP (1981)
- Osaka, JP (1981)
Company Filing History:
Years Active: 1977-1981
Title: Yasusi Umeda: Innovator in Electrostatic Photography
Introduction
Yasusi Umeda is a notable inventor based in Neyagawa, Japan. He has made significant contributions to the field of electrostatic photography, holding a total of 3 patents. His work focuses on developing advanced toner compositions and photo-sensitive materials that enhance image formation and quality.
Latest Patents
Umeda's latest patents include a toner for electrostatic photography that contains resin-coated silica. This innovative toner composition comprises toner powder with a base resin and coloring agent, having an average particle size of not more than 30 microns, along with silica powder coated with the base resin. Another significant patent is a photo-sensitive composition for dry formation of images. This composition includes a dyestuff with a photo-fading property, a ketonic sensitizing agent, and a high molecular polymer as a binding agent. It allows for the creation of visible images through light irradiation while maintaining the image without any fixing treatment.
Career Highlights
Throughout his career, Umeda has worked with prominent companies, including Nippon Paint Company, Ltd. and Nippon Paint. His experience in these organizations has contributed to his expertise in developing innovative materials for imaging technologies.
Collaborations
Umeda has collaborated with notable coworkers such as Shin Saito and Kunsei Tanabe. Their combined efforts have led to advancements in the field of electrostatic photography.
Conclusion
Yasusi Umeda's contributions to the field of electrostatic photography through his patents and collaborations highlight his role as an influential inventor. His innovative work continues to impact the industry positively.