Company Filing History:
1 out of 7 
1 out of 1,357 Years Active: 1981
Title: Ryohei Noguchi: Innovator in Surface-Modified Cellulose Acetate Filaments
Introduction
Ryohei Noguchi, based in Toyama, Japan, is an accomplished inventor known for his significant contributions to the field of materials science. With a keen focus on cellulose acetate, he has developed innovative solutions that improve the properties of textile materials, particularly in terms of touch and dye absorption.
Latest Patents
Noguchi holds a patent for "Surface-modified cellulose acetate filaments and a process for producing." This patent describes a method for preparing surface-modified cellulose acetate filaments with a microporous structure. The process involves treating non-modified cellulose acetate filaments, possessing an average degree of acetylation between 50% and 62%, with an organic solvent that dissolves or swells the filaments. By rapidly evaporating the solvent, the filaments acquire a microporous structure that enhances their surface qualities, giving them a silklike touch and significantly increasing their dye exhaustion capacity, which is from 1.1 to 2.0 times that of their non-modified counterparts.
Career Highlights
Throughout his career, Ryohei Noguchi has made substantial contributions while working with leading companies in the polymer industry. Notably, he has been associated with Mitsubishi Acetate Co., Ltd. and Mitsubishi Rayon Company, Limited, where he applied his expertise in cellulose acetate to develop innovative materials and processes that have had a lasting impact on textile manufacturing.
Collaborations
During his career, Noguchi collaborated with notable colleagues such as Seigi Suzuki and Yutaka Maeda. These collaborations have allowed for the exchange of ideas and the enhancement of innovation in the field of cellulose acetate technology.
Conclusion
Ryohei Noguchi's work in the development of surface-modified cellulose acetate filaments stands as a testament to his ingenuity and dedication to the field of materials science. His patent not only reflects his individual contributions but also highlights the importance of collaboration in fostering innovation. As industries continue to seek advanced materials, Noguchi's innovations are likely to play a crucial role in shaping the future of textile technology.