This inventor holds 2 USPTO granted patents and 1 EPO patent. Top assignees: Lead Chemical Company, Limited, Niigata University, Panasonic Corporation. Active years: 2014.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Fukushima, JP (2014)
- Niigata, JP (2014)
Company Filing History:
1 out of 18 
1 out of 73 
1 out of 16,454 
Years Active: 2014
Title: The Innovative Journey of Inventor Tadashi Ishigaki
Introduction
Tadashi Ishigaki, a notable inventor based in Fukushima, Japan, has made significant contributions to the field of phosphor and light-emitting technologies. With two patents to his name, Ishigaki's work continues to enhance the efficiency and effectiveness of lighting solutions.
Latest Patents
Ishigaki's latest patents demonstrate his innovative approach to phosphor technology. His first patent describes a phosphor that emits green fluorescence when effectively excited by light in the blue to near-ultraviolet range. This phosphor maintains a consistent emission intensity regardless of variations in excitation wavelength and is designed for easy manufacturing. The chemical structure of this phosphor is represented by the formula \( A(MEuMn)L(SiGe)O \), where A includes elements like Li, Na, and K, while M encompasses Mg, Ca, Sr, Ba, and Zn.
His second patent focuses on a silicate-based phosphor known for its excellent emission intensity and a method for its production. This involves introducing raw material powders containing light-emitting ions, such as Eu, Ce, Mn, and Tb, and firing these materials while supplying SiO in a gas phase. This process is performed at high temperatures, promoting a gas-solid phase reaction that further enhances the phosphor's quality.
Career Highlights
Ishigaki has worked with prominent companies, including Panasonic Corporation and Lead Chemical Company, Limited, where he applied his expertise in the development of advanced lighting technologies. His career is marked by a commitment to innovation and quality, contributing significantly to the industry.
Collaborations
Throughout his professional journey, Ishigaki has collaborated with esteemed colleagues such as Kenji Toda and Mineo Sato. These collaborations have enriched his work, fostering a creative environment that stimulates groundbreaking advancements in phosphor technology.
Conclusion
In summary, Tadashi Ishigaki stands out as an influential inventor in the field of phosphor and light-emitting devices. With two impactful patents under his belt, his work continues to contribute to advancing technology, enhancing our understanding and capabilities in efficient lighting solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile