This inventor holds 6 USPTO granted patents and 2 published patent applications, plus 2 CIPO patents. Top assignees: Yokogawa Electric Corporation, Asahi Kasei Kabushiki Kaisha, Futamura Kagaku Kabushiki Kaisha. Active years: 2010-2024.
Company Filing History:
2 out of 1,406 
1 out of 992 
1 out of 15 
Years Active: 2010-2024
Title: Ayako Maruta: Innovator in Cellulose Nanofiber Technology
Introduction
Ayako Maruta is a prominent inventor based in Kyoto, Japan. She has made significant contributions to the field of cellulose nanofiber technology, holding a total of six patents. Her innovative work focuses on the production and modification of cellulose nanofibers, which have various applications in materials science and engineering.
Latest Patents
Maruta's latest patents include the development of sulfate ester modified cellulose nanofibers. These nanofibers have an average fiber diameter ranging from 1 nm to 500 nm and feature sulfate ester modified hydroxyl groups on their surfaces. She has also devised a method for producing cellulose nanofibers that are nanosized, possess a high degree of crystallinity, and exhibit large aspect ratios. This method is a chemical process that does not require physical pulverization, making it energy-efficient and suitable for mild reaction conditions. Additionally, she has created methods for modifying cellulose nanofibers through esterification or urethanization, as well as a process that involves impregnating cellulose with a fibrillation solution containing dimethylsulfoxide, carboxylic acid anhydrides, and sulfuric acid to achieve fibrillation.
Career Highlights
Throughout her career, Ayako Maruta has worked with notable companies such as Yokogawa Electric Corporation and Hoya Corporation. Her experience in these organizations has contributed to her expertise in cellulose nanofiber technology and innovation.
Collaborations
Some of her coworkers include Hideki Yamaguchi and Lianzhen Lin, who have collaborated with her on various projects related to cellulose nanofibers.
Conclusion
Ayako Maruta's contributions to cellulose nanofiber technology highlight her innovative spirit and dedication to advancing materials science. Her patents and career achievements reflect her significant impact in this field.