Location History:
- Jyoyo, JP (1991)
- Joyo, JP (1992)
Company Filing History:
Years Active: 1991-1992
Title: Hiroshi Yokoyama: Innovator in Polyester Fiber Technology
Introduction
Hiroshi Yokoyama is a prominent inventor based in Jyoyo, Japan, known for his significant contributions to the field of polyester fiber technology. With a total of 2 patents, he has made remarkable advancements that enhance the properties and manufacturing processes of polyester fibers.
Latest Patents
Yokoyama's latest patents include innovative methods for producing high-strength polyester fibers. The first patent describes a polyester fiber primarily composed of polyethylene terephthalate, characterized by a strength of at least 7.0 g/d, an initial Young's modulus of at least 85 g/d, and an elongation of less than 20%. This fiber also features a degree of crystallization of at least 45% and a birefringence ratio ranging from 0.38 to 0.45. The second patent outlines a method for manufacturing polyester fiber through a continuous spin-draw process. This process involves melt spinning polyethylene terephthalate, followed by multiple drawing stages to achieve dimensionally stable fibers with high strength and low shrinkage.
Career Highlights
Yokoyama is associated with Unitika Ltd., a company recognized for its innovative textile solutions. His work has significantly impacted the polyester industry, leading to the development of fibers that meet the demands of modern applications.
Collaborations
Throughout his career, Yokoyama has collaborated with notable colleagues, including Kinsaku Nishikawa and Shigemitsu Murase. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Hiroshi Yokoyama's contributions to polyester fiber technology exemplify the spirit of innovation in the textile industry. His patents and collaborative efforts continue to influence advancements in fiber manufacturing processes.
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.