Yoshinobu Ito

Title: Innovations by Yoshinobu Ito in Polarizing Plastic Lens Manufacturing

Introduction

Yoshinobu Ito is a notable inventor based in Nagano, Japan. He has made significant contributions to the field of optical technology, particularly in the manufacturing of polarizing plastic lenses. With a total of two patents to his name, his work has advanced the methods used in lens production.

Latest Patents

Yoshinobu Ito's latest patents focus on innovative methods for manufacturing polarizing plastic lenses. One patent describes a process that includes a reversing step, where a convex surface shape is transformed into a concave surface shape by pressing a curved polarizing film. This is followed by assembling a casting mold that positions the reversed polarizing film, along with an upper mold, a lower mold, and a sealing member. The final steps involve casting a curable composition into the mold cavity and polymerizing it to create a polarizing plastic lens.

Another patent outlines a similar method, detailing an upper mold positioning step, where the non-molding surface faces up. This is followed by discharging a thixotropic curable adhesive to form adhesive columns on the molding surface. The process continues with bonding the upper mold to the polarizing film, curing the adhesive columns, and assembling the casting mold. The final polymerizing and curing step results in a polarizing plastic lens that incorporates the polarizing film.

Career Highlights

Throughout his career, Yoshinobu Ito has worked with prominent companies in the optical industry. He has been associated with Ehs Lens Philippines, Inc. and Sony Group Corporation, where he has contributed to various projects and innovations in lens technology.

Collaborations

Yoshinobu has collaborated with notable colleagues, including Masaki Ihara and Hiroshi Shimizu. Their combined expertise has furthered advancements in the field of optical manufacturing.

Conclusion

Yoshinobu Ito's innovative methods for manufacturing polarizing plastic lenses demonstrate his significant impact on the optical technology industry. His patents reflect a commitment to advancing lens production techniques, showcasing his role as a key inventor in this field.