Company Filing History:
Years Active: 1993-2000
Title: Hirosi Usui: Innovator in Glass Technology
Introduction
Hirosi Usui is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of glass technology, particularly in the development of color cathode ray tubes and water-resistant materials. With a total of 3 patents to his name, Usui's work has had a lasting impact on the industry.
Latest Patents
One of Usui's latest patents involves a color cathode ray tube that features a panel glass and a funnel glass sealed with a composition comprising a low melting glass containing PbO as the main component. This innovative design ensures that the sealed portion experiences minimal weight reduction when immersed in water at 90°C for 20 hours, with a maximum reduction of 1 mg/cm². Additionally, the weight reduction after immersion in a 10% nitric acid solution at 40°C for 20 minutes ranges from 80 to 700 mg/cm². This advancement highlights Usui's commitment to enhancing the durability and performance of glass products.
Career Highlights
Usui is currently employed at Asahi Glass Company, Limited, where he continues to push the boundaries of glass technology. His work has not only contributed to the company's reputation but has also set new standards in the industry.
Collaborations
Throughout his career, Usui has collaborated with esteemed colleagues such as Tsuneo Manabe and Tsunehiko Sugawara. These partnerships have fostered innovation and have been instrumental in the development of groundbreaking technologies.
Conclusion
Hirosi Usui's contributions to glass technology, particularly through his patents and collaborations, underscore his role as a leading inventor in the field. His work continues to influence advancements in glass products and materials.