This inventor holds 6 USPTO granted patents, plus 2 CIPO patents. Top assignees: Fujikura Limited, Other. Active years: 1990-2001.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
5 out of 1,874 
1 out of 834,513 Years Active: 1990-2001
Title: Keiji Oohashi: Innovator in Optical Fiber Technology
Introduction
Keiji Oohashi is a prominent inventor based in Sakura, Japan. He has made significant contributions to the field of optical fiber technology, holding a total of 6 patents. His innovative work has advanced the capabilities and applications of optical fibers in various industries.
Latest Patents
Oohashi's latest patents include groundbreaking inventions such as an optical fiber cord and a ribbon cord using the same. This invention features metal filaments, such as steel wires, which possess a Young's modulus of 10,000 kg/mm. These filaments are longitudinally arranged on a UV curable resin-coated optical fiber. A resin covering layer is then formed by coating ultraviolet curing resin and curing it, resulting in an extremely small optical fiber cord with a finished diameter of about 250 µm. Another notable patent is a method for splicing and reinforcing carbon-coated optical fibers. This method involves fusion splicing carbon-coated optical fibers in an atmosphere containing less than 0.5 vol % of oxygen without removing the carbon coating. The process minimizes damage to the carbon coating and enhances the fatigue characteristics of the spliced part.
Career Highlights
Throughout his career, Oohashi has worked with notable companies, including Fujikura Limited. His expertise in optical fiber technology has positioned him as a key figure in the industry, contributing to advancements that have practical applications in telecommunications and other fields.
Collaborations
Oohashi has collaborated with esteemed colleagues such as Tsuyoshi Shimomichi and Shinji Araki. These partnerships have fostered innovation and have led to the development of cutting-edge technologies in optical fibers.
Conclusion
Keiji Oohashi's contributions to optical fiber technology through his patents and collaborations highlight his role as a leading inventor in this field. His work continues to influence advancements in optical communications and related technologies.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile