This inventor holds 5 USPTO granted patents and 1 EPO patent. Top assignees: Shimadzu Corporation, Kabushiki Kaisha Kobe Seiko Sho, Toyota Jidosha Kabushiki Kaisha. Active years: 1996-2003.
Location History:
- Kyoto, JP (1996)
- Ohtsu, JP (1998 - 1999)
- Kyoto-fu, JP (1999)
- Otsu, JP (2003)
Company Filing History:
4 out of 3,687 
1 out of 1,101 
1 out of 38,774 
Years Active: 1996-2003
Title: Seiji Sawa: Innovator in Polylactic Acid Production
Introduction
Seiji Sawa is a notable inventor based in Ohtsu, Japan. He has made significant contributions to the field of bioplastics, particularly in the production of polylactic acid (PLA). With a total of 5 patents to his name, Sawa's work focuses on sustainable materials derived from lactic acid fermentation.
Latest Patents
Sawa's latest patents include a process for producing lactide and a method for producing polylactic acid from fermented lactic acid. The first patent outlines a method for consistently producing lactide from ammonium lactate obtained through lactic fermentation. This process involves synthesizing lactate ester, polycondensing it in the presence of a specific catalyst, and then depolymerizing the resulting polylactic acid to yield lactide. The second patent details a method for producing polylactic acid that includes crystallizing polylactic acid pellets and removing low-molecular components to enhance the quality of the final product.
Career Highlights
Throughout his career, Seiji Sawa has worked with prominent companies such as Shimadzu Corporation and Kobe Steel, Ltd. His experience in these organizations has allowed him to develop innovative processes that contribute to the advancement of bioplastics.
Collaborations
Sawa has collaborated with notable colleagues, including Hitomi Ohara and Masahiro Ito. Their combined expertise has furthered research and development in the field of sustainable materials.
Conclusion
Seiji Sawa's contributions to the production of polylactic acid highlight his commitment to innovation in sustainable materials. His patents and collaborations reflect a dedication to advancing technology in the bioplastics industry.