This inventor holds 19 USPTO granted patents and 7 published patent applications, plus 1 CIPO patent and 13 EPO patents, primarily in Polyester Resin Compositions. Top assignee: Toray Industries, Inc.. Active years: 2005-2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Aichi, JP (2012 - 2014)
- Otsu, JP (2022)
- Nagoya, JP (2005 - 2023)
Company Filing History:
Years Active: 2005-2026
Areas of Expertise:
Title: Sadanori Kumazawa: Innovator in Polyester Resin Technology
Introduction
Sadanori Kumazawa, based in Nagoya, Japan, has made significant contributions to the field of polyester resin technology. With a portfolio comprising 19 patents, Kumazawa continues to push the boundaries of material science through innovative designs and applications.
Latest Patents
Kumazawa's most recent patents showcase his expertise in polyester resin compositions and molded articles. One notable invention is a composite molded article formed through laser welding, utilizing a polyester resin composition with a crystallinity of 15% or greater. The sophisticated method for calculating this crystallinity involves fast scanning calorimetry, where the polyester material is meticulously heated and cooled to achieve desired properties.
Another pivotal patent introduced a thermoplastic polyester resin composition that demonstrates exceptional stability, mechanical properties, and hydrolysis resistance. This invention combines a thermoplastic polyester resin with a biphenyl aralkyl-type epoxy resin or cyclopentadiene-type epoxy resin, marking a significant advancement in the field of composite materials.
Career Highlights
Throughout his career, Kumazawa has been associated with reputable organizations. He has worked at Toray Industries, Inc. and NatureWorks LLC, where he contributed to research and development efforts, further establishing his influence in polyester resin solutions. His work reflects a commitment to advancing technology in this specialized area.
Collaborations
Kumazawa has collaborated with notable colleagues, including Hiroyuki Ohme and Jiro Kumaki. These partnerships have fostered innovative projects that leverage their collective expertise in materials science and engineering, leading to advancements that benefit various industries.
Conclusion
Sadanori Kumazawa's contributions to polyester resin technology through his diverse patents and industry collaborations stand as a testament to his innovative spirit. As he continues to develop new materials and processes, his work is likely to impact future applications, reinforcing the critical role of inventors in shaping modern industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile