Amimachi, Japan

Sayako Nakao

This inventor holds 1 USPTO granted patent and 3 published patent applications and 1 EPO patent. Top assignee: Riso Kagaku Corporation. Active years: 2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sayako Nakao. Retrieved from https://idiyas.com/inventor/sayako-nakao

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank
USPTO Granted Patents = 1 

% Patents Active = 100.0

 

Average Co-Inventor Count = 5.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2009

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1 patent (USPTO):Explore Patents

Title: Sayako Nakao - Innovator in Aqueous Ink Technology

Sayako Nakao is a prominent inventor based in Amimachi, Japan. She has made significant contributions to the field of ink technology, particularly in the development of aqueous inks for inkjet printing. Her innovative approach has led to the creation of a unique formulation that enhances the performance and quality of inkjet printing.

Latest Patents

Sayako Nakao holds 1 patent for her invention titled "Aqueous Ink for Inkjet." This aqueous ink formulation includes a pigment, a water-soluble organic solvent A that consists of at least one of a diglycerol and a polyglycerol, a water-soluble organic solvent B represented by a specific polyethylene glycol monoalkyl ether, and water. This innovative formulation aims to improve the efficiency and quality of inkjet printing.

Career Highlights

Nakao is associated with Riso Kagaku Corporation, a company known for its advancements in printing technology. Her work at Riso Kagaku has allowed her to explore and develop new ink formulations that cater to the evolving needs of the printing industry.

Collaborations

Throughout her career, Sayako Nakao has collaborated with notable colleagues, including Yoshiaki Ishimaru and Takashi Saito. These collaborations have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Sayako Nakao's contributions to aqueous ink technology exemplify her dedication to innovation in the printing industry. Her patent reflects her commitment to enhancing inkjet printing performance, making her a valuable figure in the field.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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