This inventor holds 58 USPTO granted patents, primarily in Polyimide Resins (CPC class 5281). Top assignees: Mitsui Toatsu Chemicals, Incorporated, Mitsui Chemicals, Inc., Jujo Paper Co., Ltd.. Active years: 1981-2001.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Inventors with similar research interests:
Location History:
- Tokyo, JP (1984 - 1988)
- Kawasaki, JP (1981 - 1992)
- Kanagawa, JP (1985 - 1994)
- Chiba-ken, JP (1997 - 2000)
- Chiba, JP (1990 - 2001)
Company Filing History:
56 out of 1,379 
2 out of 1,816 
1 out of 107 Years Active: 1981-2001
Areas of Expertise:
Title: Innovator in Polymer Chemistry: The Patents of Keizaburo Yamaguchi
Introduction: Keizaburo Yamaguchi is a prolific inventor based in Chiba, Japan, boasting an impressive portfolio of 58 patents. His work primarily revolves around advancements in polymer chemistry, specifically focusing on processes and materials that enhance the efficiency and effectiveness of polymerization.
Latest Patents: Among his latest innovations, one significant patent presents a method for preventing scale adhesion to the surfaces of a polymerization tank. This novel approach involves applying a specific coating agent, composed of a modified condensation product of phenol and aldehyde, to surfaces that will contact vinyl chloride monomer during the polymerization process. Remarkably, the solution is formulated to dissolve at ambient temperatures and then precipitate when heated, creating a strong, uniform coating that effectively prevents polymer adhesion. Another noteworthy invention is the development of aromatic hydroxycarboxylic acid resins, which introduces a unique resin structure serving various applications in the industry.
Career Highlights: Keizaburo Yamaguchi has contributed significantly to the field while working with reputable companies such as Mitsui Toatsu Chemicals, Incorporated and Mitsui Chemicals, Inc. His extensive career has witnessed continued innovation and dedication to improving chemical processes.
Collaborations: Throughout his career, Yamaguchi has worked alongside notable colleagues, including Akihiro Yamaguchi and Yoshimitsu Tanabe, fostering an environment of collaboration and shared expertise in the polymer industry.
Conclusion: Keizaburo Yamaguchi stands out as a key figure in polymer chemistry, thanks to his substantial contributions and numerous patents. His innovative methods continue to influence the field and enhance the efficiency of polymerization processes. The impact of his inventions is sure to resonate within the industry for years to come.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile