This inventor holds 18 USPTO granted patents, plus 1 CIPO patent, primarily in Ink-Jet Recording. Top assignees: Mitsui Toatsu Chemicals, Incorporated, Mitsui Chemicals, Inc., Yamamoto Chemicals, Inc.. Active years: 1987-2006.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Ohmuta, JP (1987)
- Omuta, JP (1991)
- Fukuoka, JP (1992)
- Yokohama, JP (1995 - 1998)
- Kanagawa-ken, JP (1997 - 2000)
- Chiba, JP (2004)
- Kanagawa, JP (2006)
Company Filing History:
12 out of 1,379 
6 out of 1,817 
6 out of 73 Years Active: 1987-2006
Areas of Expertise:
Title: Ryu Oi: Innovator in Ink Technology
Introduction
Ryu Oi is a prominent inventor based in Yokohama, Japan, known for his significant contributions to ink technology. With a total of 18 patents to his name, he has made remarkable advancements in the field of aqueous inks for ink-jet recording systems. His innovative work has greatly influenced the quality and performance of ink products used in various applications.
Latest Patents
Among his latest patents, Ryu Oi has developed a yellow hue compound and an aqueous ink for ink-jet recording systems. This aqueous ink contains at least a water-insoluble coloring matter, water, and a resin as its main components. The ink takes the form of an emulsion, featuring at least one yellow hue coloring matter selected from a group that includes a quinophthalone compound and a pyridone azo compound. This ink is designed to provide excellent light resistance and storage stability, enabling the formation of high-quality images without blotting. Additionally, the resulting recorded images exhibit outstanding water resistance, making it a valuable product for ink-jet recording applications.
Career Highlights
Ryu Oi has had a distinguished career, working with notable companies such as Mitsui Toatsu Chemicals, Incorporated and Mitsui Chemicals, Inc. His experience in these organizations has allowed him to refine his expertise in ink technology and contribute to the development of innovative products.
Collaborations
Throughout his career, Ryu Oi has collaborated with talented individuals, including Yoriaki Matsuzaki and Hisato Itoh. These collaborations have fostered a creative environment that has led to the successful development of new technologies in the ink industry.
Conclusion
Ryu Oi's contributions to ink technology through his patents and collaborations have established him as a key figure in the field. His innovative work continues to influence the quality and performance of ink products, showcasing the importance of creativity and research in advancing technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile