Location History:
- Kobe, JP (2010)
- Hyogo, JP (2015)
Company Filing History:
2 out of 9 
1 out of 3,601 
1 out of 7 Years Active: 2010-2015
Title: **Yoshiji Usui: Innovator in Heat Extensible Fibers**
Introduction
Yoshiji Usui is a renowned inventor based in Hyogo, Japan. With a focus on innovative textile technology, he has been awarded two patents, highlighting his contributions to advancements in fiber engineering. His work aims to improve the functionality and versatility of textiles.
Latest Patents
Usui's most recent patents include groundbreaking inventions in the field of heat extensible fibers.
1. **Heat Extensible Fiber** – This patent details a conjugate fiber that consists of a first resin component with an orientation index of 30% to 70% and a second resin component that has a lower melting or softening point than the first. The fiber is designed to thermally extend when heated below the melting point of the first resin, showcasing higher self-extensibility compared to conventional extensible fibers.
2. **Latently Crimpable Conjugate Fiber** – This invention comprises a first component made from an ethylene-α-olefin copolymer and a second component from a thermal plastic polymer with a higher melting point. The fiber shows significant dry heat shrinkage and is capable of developing crimps while exhibiting thermal adhesiveness at low temperatures.
Career Highlights
Throughout his career, Usui has made significant strides in the textile industry. He has worked with prominent companies such as Daiwabo Holdings Co., Ltd. and Kao Corporation. His research and development efforts have led to advancements that integrate new properties into fibers, thus enhancing their applicability in various fields.
Collaborations
Yoshiji Usui has collaborated with notable professionals in the industry, including Shigeki Kawakami and Manabu Matsui. These partnerships have been instrumental in refining his inventions and expanding the potential of his fiber technologies.
Conclusion
Yoshiji Usui's contributions to the field of fiber technology through his innovative patents highlight his role as a key figure in textile advancements. His work continues to influence the development of new materials that offer improved performance and functionality in the textile industry.
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.