Location History:
- Yokoyama, JP (1998)
- Yokohama, JP (1995 - 2002)
- Tokyo, JP (2013 - 2017)
- Chiyoda-ku, JP (2013 - 2022)
Company Filing History:
11 out of 2,560 
2 out of 7 
1 out of 6 
Years Active: 1995-2022
Title: **Kazuo Umemura: A Pioneer in Ion Exchange Membrane Technology**
Introduction
Kazuo Umemura, an esteemed inventor based in Chiyoda-ku, Japan, is known for his innovative contributions to the field of ion exchange membrane technology. With a remarkable portfolio of 15 patents, Umemura has made significant strides in enhancing the efficiency of alkali chloride electrolysis processes.
Latest Patents
Umemura's latest patents include a groundbreaking **Ion Exchange Membrane for Alkali Chloride Electrolysis** and an associated **Alkali Chloride Electrolysis Apparatus**. His inventions aim to enhance the membrane strength while minimizing membrane resistance, ultimately reducing electrolysis voltage during the process. The ion exchange membrane comprises a unique structure featuring a layer of fluorinated polymer with carboxylic acid functional groups, complemented by two layers of fluorinated polymer with sulfonic acid functional groups. This innovative layering technique ensures the prevention of peeling and enhances overall performance.
Additionally, he has developed a **Process for Producing Fluorinated Copolymer**, designed to minimize decreases in current efficiency caused by impurities in aqueous alkali chloride solutions during electrolysis. This process involves washing the fluorinated copolymer using a specific washing solvent at controlled temperatures, demonstrating Umemura's keen understanding of material science.
Career Highlights
Kazuo Umemura has had an impactful career, working with prominent companies such as Asahi Glass Company, Limited, and Glegg Water Conditioning, Inc. His tenure in these organizations has played a crucial role in the advancement of electrolysis technology, showcasing his expertise and innovation in the industry.
Collaborations
Throughout his career, Umemura has collaborated with notable colleagues, including Ichiro Terada and Junjiro Iwamoto. These partnerships have facilitated a rich exchange of ideas, further enhancing the research and development of advanced ion exchange membranes.
Conclusion
Kazuo Umemura's contributions to the field of ion exchange membrane technology have significantly impacted the efficiency of alkali chloride electrolysis. His relentless pursuit of innovation and collaboration with industry experts stands as a testament to his dedication to advancing technological solutions. With 15 patents to his name, Umemura's work continues to inspire future generations in the realm of scientific inventions.
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.