Company Filing History:
1 out of 3 
1 out of 2 Years Active: 1986-1988
Title: Naokatsu Tanahashi: Innovator in Contact Lens Materials
Introduction
Naokatsu Tanahashi is a notable inventor based in Gifu, Japan. He has made significant contributions to the field of contact lens materials, holding two patents that showcase his innovative approach to enhancing the functionality and comfort of contact lenses.
Latest Patents
Tanahashi's latest patents focus on novel multifunctional organosiloxane monomers. These monomers can be copolymerized with monofunctional organosiloxane monomers and various esters to produce excellent oxygen-permeable hard contact lens materials. His inventions emphasize the importance of cross-linking agents and wetting agents, which contribute to the manufacturing of contact lenses that are easy to machine and polish. Additionally, he has developed a contact lens material made of an organosiloxane ester copolymer, which is oxygen permeable and substantially free of water absorption, allowing for comfortable extended wear.
Career Highlights
Throughout his career, Tanahashi has worked with prominent companies in the contact lens industry, including Nippon Contact Lens Manufacturing Ltd. and Nippon Contact Lens Inc. His work has significantly impacted the development of advanced contact lens materials, enhancing user experience and comfort.
Collaborations
Tanahashi has collaborated with notable colleagues such as Yutaka Mizutani and Tatsuo Harata. These collaborations have contributed to the advancement of technology in the field of contact lenses.
Conclusion
Naokatsu Tanahashi's innovative work in contact lens materials has led to significant advancements in the industry. His patents reflect a commitment to improving the comfort and functionality of contact lenses, making him a key figure in this field.