This inventor holds 31 USPTO granted patents and 1 published patent application and 10 EPO patents, primarily in Water-Absorbent Resins. Top assignees: Nippon Shokubai Co., Ltd., Nippon Shokubai Kagaku Kogyo Co., Ltd., Nippon Shokubai Kagaku Kabushiki Kaisha. Active years: 1991-2024.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Kobe, JP (2002)
- Hyogo, JP (1991 - 2013)
- Takatsuki, JP (2001 - 2013)
- Kakogawa, JP (2004 - 2018)
- Himeji, JP (2014 - 2024)
Company Filing History:

Years Active: 1991-2024
Areas of Expertise:
Title: Kenji Kadonaga: Innovator in Water-Absorbent Resin Technology
Introduction
Kenji Kadonaga, based in Kakogawa, Japan, is a prominent inventor recognized for his significant contributions to the field of polymer chemistry. With an impressive portfolio of 31 patents, his innovations focus primarily on methods for producing water-absorbent resins, enhancing their performance and production efficiency.
Latest Patents
Kadonaga's latest patents address critical challenges in the production of water-absorbent resins. One innovative method focuses on reducing the undried residue during the recycling of fine powders from water-absorbing resin. This method involves a multi-step approach, including granulation, gel addition, and mixing steps, with specific conditions for solids content and temperature, ensuring high-quality outcomes. Another method provides a stable process for producing water-absorbent resins in powder or particle form, emphasizing excellent physical properties and minimized production issues. This involves a carefully controlled mixing process with organic solvents at elevated temperatures.
Career Highlights
Throughout his career, Kadonaga has worked with esteemed organizations such as Nippon Shokubai Co., Ltd. and Nippon Shokubai Kagaku Kogyo Co., Ltd. His work at these companies has played a vital role in advancing resin technology, contributing significantly to the efficiency and effectiveness of water-absorbent materials.
Collaborations
Kadonaga has collaborated with notable colleagues, including Masazumi Sasabe and Kinya Nagasuna, sharing their expertise in the field of polymer science. These partnerships have been instrumental in pushing the boundaries of innovation and fostering a collaborative research environment.
Conclusion
Kenji Kadonaga's inventive spirit and dedication to improving water-absorbent resin technology have established him as a leader in his field. His impressive body of work and collaborations underscore the importance of innovative approaches in enhancing material properties and production processes. As he continues to develop new methods, the impact of his contributions will undoubtedly shape the future of polymer applications in various industries.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile