Location History:
- Iwakuni, JP (1998 - 2000)
- Waki-cho, JP (2002)
- Yamaguchi, JP (2003 - 2008)
Company Filing History:
5 out of 1,786 
1 out of 1,008 Years Active: 1998-2008
Title: Akiyoshi Shimizu: Innovator in Polyester Production
Introduction
Akiyoshi Shimizu, a prolific inventor based in Iwakuni, Japan, has made significant contributions to the field of polyester production. With a total of six patents under his name, he has developed innovative catalysts and processes that enhance the quality and efficiency of polyester manufacturing. His recent inventions reflect a commitment to improving materials utilized in various industries.
Latest Patents
Shimizu's latest patents focus on a catalyst for polyester production and the related processes. His inventions include a highly efficient catalyst that produces polyester with superior catalytic activity. The catalyst comprises a solid titanium compound, which is created through the dehydro-drying of a hydrolyzate obtained from hydrolyzing a titanium halide. This catalyst operates effectively with a specific molar ratio of hydroxyl groups to titanium, allowing for the polycondensation of aromatic dicarboxylic acids or their derivatives alongside aliphatic diols or their derivatives. The resulting polyester showcases excellent transparency and tint while maintaining a carefully controlled titanium and magnesium content, paving the way for improved material characteristics.
Career Highlights
Throughout his career, Akiyoshi Shimizu has worked with renowned companies such as Mitsui Chemicals, Inc. and Mitsui Petrochemical Industries, Ltd. His roles at these organizations allowed him to refine his expertise in polymer chemistry and catalysts, leading to groundbreaking advancements in polyester production techniques.
Collaborations
Shimizu has collaborated with notable peers, including Hideshi Hori and Fujito Ehara. Their teamwork has contributed to significant developments in the polyester industry, showcasing the power of collaboration in driving innovation and enhancing material science.
Conclusion
Akiyoshi Shimizu stands as a vital figure in the realm of polyester production. His innovative approach to catalysts and associated processes has transformed manufacturing practices, resulting in high-quality polyester with reduced impurities. With a robust portfolio of patents and collaborations with key industry players, Shimizu continues to influence the evolution of polymer technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.