Location History:
- Joetsu, JP (2019 - 2024)
- Niigata, JP (2022 - 2024)
Company Filing History:
Years Active: 2019-2025
Title: Taishi Kitaguchi: Innovator in Cellulose Ether Production
Introduction
Taishi Kitaguchi is a prominent inventor based in Joetsu, Japan. He has made significant contributions to the field of cellulose ether production, holding a total of 11 patents. His innovative methods have advanced the industry and improved the quality of cellulose ethers.
Latest Patents
One of Kitaguchi's latest patents is a method for producing depolymerized cellulose ether. This method focuses on reducing yellowness in the final product. It involves a depolymerization step using an aqueous solution of acid in the presence of a polyhydric alcohol with 2 to 6 carbon atoms. Another notable patent is for hydroxypropyl methyl cellulose phthalate (HPMCP). This patent outlines a process that includes an esterification step, a precipitation step, and a washing and recovery step to obtain HPMCP with a yellowness of 10.0 or less at 20° C.
Career Highlights
Kitaguchi works at Shin-Etsu Chemical Co., Ltd., a leading company in the chemical industry. His work has been instrumental in developing new methods that enhance the production processes of cellulose ethers. His dedication to innovation has positioned him as a key figure in his field.
Collaborations
Throughout his career, Kitaguchi has collaborated with notable colleagues, including Akira Kitamura and Mitsuo Narita. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in technology.
Conclusion
Taishi Kitaguchi's contributions to cellulose ether production exemplify the impact of innovation in the chemical industry. His patents and collaborative efforts continue to shape the future of this field.