Location History:
- Wako, JP (1999 - 2013)
- Saitama, JP (1999 - 2016)
Company Filing History:
9 out of 851 
3 out of 91 
2 out of 1,309 
Years Active: 1999-2016
Title: Innovations of Yoshiharu Doi
Introduction
Yoshiharu Doi is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of bioplastics and biomaterials. With a total of 15 patents to his name, Doi's work focuses on sustainable materials that can benefit various industries.
Latest Patents
One of his latest patents is a method for producing polyhydroxyalkanoate (PHA) with a long main chain structure. This PHA copolymer consists of 3HB (3-hydroxybutyrate), 3HP (3-hydroxypropionate), and 5HV (5-hydroxyvalerate). The resulting polyhydroxyalkanoate can be utilized for bioplastic or biomaterial applications. The method involves culturing a microorganism belonging to a specific genus in a culture medium that includes lactone and/or hydroxy acid or its salt as a carbon source. Another notable patent is for a thermostable biopolyester, which is a poly(3-hydroxyalkanoate) or its copolymer with reduced calcium content. This innovation enhances thermal stability due to the decreased calcium levels.
Career Highlights
Yoshiharu Doi has worked with reputable organizations such as Riken Corporation and the Institute of Physical and Chemical Research. His career has been marked by a commitment to advancing the field of bioplastics and developing environmentally friendly materials.
Collaborations
Doi has collaborated with notable colleagues, including Tadahisa Iwata and Toshiaki Fukui. Their joint efforts have contributed to the advancement of research in biopolymer technology.
Conclusion
Yoshiharu Doi's innovative work in the field of bioplastics and biomaterials showcases his dedication to sustainability and environmental responsibility. His patents reflect a significant impact on the development of new materials that can benefit various industries.
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.