Company Filing History:
1 out of 33 
1 out of 499 Years Active: 1991-1994
Title: Masato Nakajima: Innovator in Paper Sizing Technologies
Introduction
Masato Nakajima is a notable inventor based in Hirakata, Japan. He has made significant contributions to the field of paper manufacturing, particularly in the development of innovative sizing methods. With a total of 2 patents to his name, Nakajima's work has had a considerable impact on the efficiency and quality of paper production.
Latest Patents
One of Nakajima's latest patents is a method for sizing paper using a specific vinylamine polymer as a size-fixing aid. This invention allows for the production of paper with superior sizing properties while maintaining a neutral pH during the papermaking process. The method improves operational efficiency by reducing contamination in papermaking machines, ultimately lowering production costs. Additionally, it offers advantages in acidic papermaking conditions, allowing for a reduction in the amount of alum used and extending the lifespan of the machinery.
Another significant patent involves a method for making papers that utilize a sizing agent comprising an alpha-hydroxycarboxylic acid. This agent demonstrates excellent sizing effects across a wide pH range, from pH 3 to pH 9, and boasts remarkable storage stability. The method is noted for its workability and high industrial value, making it a valuable contribution to the paper industry.
Career Highlights
Throughout his career, Nakajima has worked with prominent companies such as Arakawa Kagaku Kogyo Co., Ltd. and Mitsubishi Kasei Corporation. His experience in these organizations has allowed him to refine his expertise in paper technology and contribute to various innovative projects.
Collaborations
Some of Nakajima's notable coworkers include Kenji Yokotani and Atsushi Ikeda. Their collaborative efforts have likely played a role in advancing the research and development of paper sizing technologies.
Conclusion
Masato Nakajima's contributions to the field of paper manufacturing through his innovative sizing methods have significantly enhanced the efficiency and quality of paper production. His patents reflect a deep understanding of the materials and processes involved, marking him as a key figure in the industry.