This inventor holds 3 USPTO granted patents. Top assignees: Asahi Lite Optical Co., Ltd., Other. Active years: 1999-2001.
Company Filing History:
2 out of 9 
1 out of 834,453 Years Active: 1999-2001
Title: Yuyoshi Saito: Innovator in Optical Lens Technology
Introduction
Yuyoshi Saito is a notable inventor based in Fukui, Japan. He has made significant contributions to the field of optical lens technology, holding a total of 3 patents. His work focuses on improving the manufacturing processes and characteristics of optical lenses.
Latest Patents
Saito's latest patents include a process method for optical thermoplastic urethane resin lenses. This innovative method allows for the continuous fabrication of lenses that exhibit excellent optical characteristics without nonuniformity. The process involves forming a thiourethane prepolymer and reacting it with urethane-forming monomers in an extruder. The resulting thermoplastic thiourethane-urethane copolymer is elongated into a sheet-like shape, from which lens precursors are punched and pressed to achieve the desired curvature.
Another significant patent addresses the method for removing hard coat film from plastic lenses. This method enables the regeneration of failed hard-coated plastic lenses, particularly those made from high-refractive-index materials. By using an aqueous solution of silicate or phosphate, the hard coat can be effectively removed without damaging the lens surface, allowing for reuse.
Career Highlights
Throughout his career, Yuyoshi Saito has worked with Asahi Lite Optical Co., Ltd., where he has contributed to advancements in optical lens technology. His expertise in the field has led to the development of innovative solutions that enhance the performance and usability of optical products.
Collaborations
Saito has collaborated with notable individuals in the industry, including Tadashi Kobayashi and Shoji Kato. These partnerships have fostered a creative environment that has resulted in groundbreaking advancements in lens technology.
Conclusion
Yuyoshi Saito's contributions to optical lens technology through his patents and collaborations highlight his role as an influential inventor. His innovative methods for lens fabrication and regeneration demonstrate a commitment to enhancing optical products for various applications.