Company Filing History:
3 out of 11 
3 out of 1,714 
Years Active: 2006-2009
Title: Hiroaki Yokoi: Innovator in Optical Element Manufacturing
Introduction
Hiroaki Yokoi is a notable inventor based in Osaka, Japan, recognized for his contributions to the field of optical element manufacturing. With a total of three patents to his name, Yokoi has developed innovative methods that enhance the production of optical devices.
Latest Patents
Yokoi's latest patents include a method for manufacturing optical elements of refractive index distribution type. This invention provides a technique for producing a graded refractive index optical element, allowing for the easy formation of a graded refractive index distribution in a glass substrate without requiring a specific treatment atmosphere or the use of molten salt. The process involves applying a paste containing a copper compound, an organic resin, and an organic solvent to a glass substrate with an alkali metal component, followed by heat treatment below the softening temperature of the glass substrate. Another significant patent is the process for producing optical devices, which eliminates the need for high vacuum conditions typically required in thin film deposition methods. This method also utilizes a paste containing various alkali metal compounds, an organic resin, and an organic solvent, applied to a glass substrate, and subjected to heat treatment.
Career Highlights
Throughout his career, Yokoi has worked with prominent organizations, including Isuzu Glass Company, Ltd. and the National Institute of Advanced Industrial Science and Technology. His experience in these institutions has significantly contributed to his expertise in optical technologies.
Collaborations
Yokoi has collaborated with notable colleagues such as Tatsuya Suetsugu and Kohei Kadono, further enhancing his innovative work in the field.
Conclusion
Hiroaki Yokoi's contributions to optical element manufacturing through his patents and career achievements highlight his role as a significant innovator in the industry. His work continues to influence advancements in optical technologies.