This inventor holds 4 USPTO granted patents. Top assignees: Shin-Etsu Quartz Products Co., Ltd., Heraeus Quarzglas Gmbh & Co Kg. Active years: 1994-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Fukushima, JP (1994 - 1996)
- Sasebo, JP (2024)
Company Filing History:
4 out of 99 
1 out of 229 
Years Active: 1994-2025
Title: Innovations of Atsushi Shimada in Quartz Glass Technology
Introduction
Atsushi Shimada is a notable inventor based in Fukushima, Japan. He has made significant contributions to the field of quartz glass technology, holding a total of 4 patents. His work focuses on enhancing the properties of quartz glass, particularly in relation to ultraviolet (UV) absorption.
Latest Patents
Shimada's latest patents include a titanium-containing quartz glass that exhibits excellent UV absorption. This innovative quartz glass effectively absorbs ultraviolet rays with wavelengths of 250 nm or less, thereby preventing adverse effects related to ozone generation on the human body. The glass maintains its transmittance in the near-ultraviolet to visible light range, even when exposed to UV radiation. Additionally, it suppresses structural changes that can lead to absorption build-up or lamp burst-inducing deformation. The titanium-containing quartz glass is colorless, with an average titanium concentration of 10-500 ppm and an OH group concentration of 10-350 ppm. Another significant patent is for a quartz glass plate that features a body and an adhered quartz glass member, where the adhesive layer contains silica and maintains low concentrations of alkali and alkaline earth metal ions.
Career Highlights
Throughout his career, Atsushi Shimada has worked with prominent companies in the quartz glass industry. He has been associated with Shin-Etsu Quartz Products Co., Ltd. and Heraeus Quarzglas GmbH & Co. KG. His expertise in quartz glass technology has allowed him to develop innovative solutions that address industry challenges.
Collaborations
Shimada has collaborated with notable colleagues, including Hiroyuki Nishimura and Akira Fujinoki. These partnerships have contributed to the advancement of quartz glass technology and the successful development of his patented innovations.
Conclusion
Atsushi Shimada's contributions to quartz glass technology, particularly in UV absorption, highlight his role as an influential inventor in the field. His patents reflect a commitment to innovation and improvement in material properties, showcasing the potential for further advancements in this area.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile