This inventor holds 20 USPTO granted patents, plus 1 CIPO patent and 14 EPO patents, primarily in Photochromic Materials. Top assignee: Tokuyama Corporation. Active years: 2004-2023.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Yamaguchi-ken, JP (2005)
- Tokuyama, JP (2004 - 2006)
- Shunan, JP (2008 - 2023)
- Yamaguchi, JP (2013 - 2023)
Company Filing History:
Years Active: 2004-2023
Areas of Expertise:
Title: **Shinobu Izumi: Innovator in Optical and Photochromic Technologies**
Introduction
Shinobu Izumi, based in Shunan, Japan, is a noteworthy inventor recognized for his substantial contributions to the field of optical technologies. Holding an impressive portfolio of 20 patents, he has consistently demonstrated his innovative prowess, particularly in the development of advanced materials.
Latest Patents
Among his latest innovations are several patents that highlight his expertise. One notable patent is the "Primer composition for optical articles." This composition incorporates a urethane prepolymer created from an aromatic polyisocyanate compound and a polyol compound, featuring reactive end groups such as isocyanate or hydroxyl groups. Additionally, the composition includes a light-absorbing compound with a maximum absorption wavelength spanning from 320 nm to 650 nm and employs an organic solvent with a solubility parameter of 8 (cal/cm) or more, devoid of active hydrogen.
Another significant patent is related to a "Photochromic curable composition." This composition develops exceptional photochromic properties, comprising a polyrotaxane monomer, which consists of cyclic molecules with side chains containing OH groups. A portion of these OH groups are modified with a compound featuring a radical-polymerizable group, in conjunction with a photochromic compound and other polymerizable monomers.
Career Highlights
Shinobu Izumi has had a distinguished career at Tokuyama Corporation, where he has been influential in driving innovation and research in optical materials. His role at the corporation underscores his commitment to advancing technology and enhancing product capabilities.
Collaborations
Collaboration is essential to innovation, and Shinobu has worked alongside talented colleagues such as Junji Momoda and Junji Takenaka. Their joint efforts have undoubtedly contributed to the successful development of transformative technologies.
Conclusion
Shinobu Izumi continues to make significant strides in the field of optical and photochromic innovations. With his extensive patent portfolio and contributions at Tokuyama Corporation, he remains a pivotal figure in enhancing the scientific understanding and practical applications of optical technologies. His work serves as an inspiration for future inventors and researchers striving to innovate and improve material science.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile