This inventor holds 4 USPTO granted patents and 1 published patent application. Top assignees: Nec Corporation, Asetllas Pharma Inc., Nikon Corporation. Active years: 1990-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
2 out of 36,735 
1 out of 1 
1 out of 8,998 
Years Active: 1990-2025
Title: Kouji Yamazaki: Innovator in Photochromic Technology
Introduction
Kouji Yamazaki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of photochromic materials, holding a total of 4 patents. His work has advanced the technology behind photochromic lenses, which are widely used in eyewear.
Latest Patents
Yamazaki's latest patents include a crystal of an indocyanine compound. This invention involves a complex chemical structure that showcases his expertise in material science. Another notable patent is for a photochromic plastic lens and its method of manufacture. This invention provides a commercially feasible method for producing photochromic lenses on a large scale, involving vacuum deposition of photochromic material onto plastic lenses.
Career Highlights
Throughout his career, Kouji Yamazaki has worked with notable companies such as NEC Corporation and Nikon Corporation. His experience in these leading firms has allowed him to refine his skills and contribute to innovative projects in the optical industry.
Collaborations
Yamazaki has collaborated with various professionals in his field, including Ichiro Ono, enhancing the scope and impact of his inventions.
Conclusion
Kouji Yamazaki's contributions to photochromic technology and his innovative patents reflect his dedication to advancing the field. His work continues to influence the development of practical applications in eyewear and beyond.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile