This inventor holds 2 USPTO granted patents. Top assignee: Ricoh Company, Ltd.. Active years: 1981-1986.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1981-1986
Title: Akiyoshi Yasumori: Innovator in Document Security
Introduction
Akiyoshi Yasumori is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of document security, holding a total of 2 patents. His innovative approaches focus on preventing unauthorized reproduction of confidential documents.
Latest Patents
Yasumori's latest patents include a confidential document reproduction prevention method. This method prevents confidential documents from being reproduced by applying a specific material as a confidential mark on the document's surface. When exposed to illumination light, this material emits light at a different wavelength, which is detected by a reproduction machine. If the light is detected, the machine becomes inoperative, ensuring the document's confidentiality.
Another patent involves a photo-sensitive and heat-sensitive composition and recording element. This composition consists of a leuco-pigment, a hydrogen donator, a photo-reductant, and a photooxidant. When exposed to visible light, the photo-reductant produces a reducing agent, while the photooxidant generates color in the leuco-pigment. This innovative combination enhances the security and functionality of recording elements.
Career Highlights
Akiyoshi Yasumori is currently employed at Ricoh Company, Ltd., where he continues to develop cutting-edge technologies. His work focuses on enhancing document security and improving the efficiency of reproduction processes. His contributions have positioned him as a key figure in the field of document technology.
Collaborations
Yasumori collaborates with talented coworkers, including Makoto Kunikane and Kiyoshi Taniguchi. Together, they work on innovative projects that push the boundaries of document security and technology.
Conclusion
Akiyoshi Yasumori's inventive spirit and dedication to improving document security have led to significant advancements in the field. His patents reflect a commitment to innovation and the protection of confidential information.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile