This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignee: Hoya Corporation. Active years: 2009-2013.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Tokyo, JP (2009)
- Akishima, JP (2013)
Company Filing History:
Years Active: 2009-2013
Title: Koichiro Shiraishi: Innovator in Optical Glass Technology
Introduction
Koichiro Shiraishi is a prominent inventor based in Akishima, Japan. He has made significant contributions to the field of optical glass technology, holding a total of 2 patents. His work focuses on developing advanced materials that enhance optical performance.
Latest Patents
Shiraishi's latest patents include innovative designs for lenses and optical elements. One of his notable inventions is a lens formed of a high-refractivity low-dispersion glass. This lens is free of fogging and scorching on its optical-function surface, achieved through precision press-molding of optical glass with a refractive index of over 1.83. The glass has an Abbe's number of 40 or more and a glass transition temperature of 640°C or lower, while containing no LiO. The lens can take various forms, including meniscus, biconcave, or plano-concave shapes.
Another significant patent involves an optical glass that possesses high-refractivity and high-dispersion properties. This glass is less colored and suitable for press-shaping and various optical elements. The composition includes specific percentages of PO, NbO, BaO, BO, TiO, and a controlled amount of LiO, NaO, and KO, ensuring a light transmittance of 50% at a wavelength of 420 nm or shorter.
Career Highlights
Koichiro Shiraishi is currently associated with Hoya Corporation, a leading company in the optical and imaging industry. His work at Hoya has allowed him to push the boundaries of optical glass technology, contributing to advancements that benefit various applications.
Collaborations
Shiraishi has collaborated with notable coworkers, including Kazutaka Hayashi and Kouichi Satou. Their combined expertise has fostered innovation and development in optical materials.
Conclusion
Koichiro Shiraishi's contributions to optical glass technology exemplify the spirit of innovation. His patents reflect a commitment to enhancing optical performance through advanced materials. His work continues to influence the industry and pave the way for future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile