Obu, Japan

Mitsuru Oshima

This inventor holds 2 USPTO granted patents. Top assignee: Nippon Contact Lens Manufacturing Ltd.. Active years: 1979-1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mitsuru Oshima. Retrieved from https://idiyas.com/inventor/mitsuru-oshima-fju3an2y

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 2

Forward Citations = 29(Granted Patents)


Company Filing History:


Years Active: 1979-1981

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2 patents (USPTO):Explore Patents

Title: Innovations by Mitsuru Oshima in Contact Lens Manufacturing

Introduction

Mitsuru Oshima is a notable inventor based in Obu, Japan, recognized for his contributions to the field of contact lens manufacturing. With a total of two patents to his name, Oshima has developed innovative methods and molds that enhance the quality of silicone contact lenses.

Latest Patents

Oshima's latest patents include a method for manufacturing silicone contact lenses and a specialized mold for this purpose. The method involves using a mold with a specific structure, comprising a male and female section plated with chromium, hard chromium, or nickel. When these sections are joined, they create a line contact that defines a mold cavity. Silicone resin is then cast into this cavity and heated in hot water until cured, resulting in a high-quality finished contact lens. The mold itself is designed to ensure that the contact lens produced is free from flashes or irregularities, further enhancing its quality.

Career Highlights

Oshima is associated with Nippon Contact Lens Manufacturing Ltd., where he has applied his expertise in developing advanced manufacturing techniques. His work has significantly impacted the production of silicone contact lenses, making them more reliable and effective for users.

Collaborations

Oshima has collaborated with notable colleagues such as Yutaka Mizutani and Yoshiharu Miwa, contributing to the advancement of contact lens technology through teamwork and shared expertise.

Conclusion

Mitsuru Oshima's innovative approaches in the manufacturing of silicone contact lenses have set new standards in the industry. His patents reflect a commitment to quality and precision, making a lasting impact on the field of optical products.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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