This inventor holds 2 USPTO granted patents. Top assignee: Kureha Kagaku Kogyo Kabushiki Kaisha. Active years: 1981-1982.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1981-1982
Title: Hiroshi Ohhira: Innovator in Composite and Conjugate Filaments
Introduction
Hiroshi Ohhira is a notable inventor based in Iwaki, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced composite and conjugate filaments. With a total of 2 patents to his name, Ohhira's work is recognized for its innovative applications in submerged environments.
Latest Patents
Ohhira's latest patents include the invention of improved composite and conjugate filaments designed for exclusive use in in-water submerged purposes. Each filament consists of a core made from vinylidene fluoride resin, which is composed of one or more filamentary elements, while the sheath is made from polyamide resin. The composition ratio between these two resins is defined by a value ranging from 1/99 to 40/60, with a preferred range of 3/97 to 30/70, and even more preferably between 3/97 and 20/80. Another significant patent is for concentric composite conjugate yarns, which are strong conjugate composite yarns highly suited for use as fishing lines. The core material is a polyolefin with a double refrax Δn of at least 30×10^-3, while the sheath material can be either polyamide or polyester. Both the core and sheath components are highly stretched and oriented, enhancing their performance.
Career Highlights
Hiroshi Ohhira is associated with Kureha Kagaku Kogyo Kabushiki Kaisha, a company known for its innovative chemical products. His work at this organization has allowed him to focus on developing materials that meet specific industry needs, particularly in aquatic applications.
Collaborations
Ohhira has collaborated with notable coworkers such as Tohru Sasaki and Hiroyuki Endo. Their combined expertise has contributed to the successful development of advanced materials and technologies.
Conclusion
Hiroshi Ohhira's contributions to the field of materials science, particularly through his patents on composite and conjugate filaments, highlight his innovative spirit and dedication to advancing technology. His work continues to influence the industry and pave the way for future innovations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile