Yuji Ozeki

Title: Yuji Ozeki: Ethylene Copolymer Innovations

Introduction

Yuji Ozeki is an inventor associated with Yokkaichi, Japan, and Mitsubishi Petrochemical Company Limited. His work includes innovations in ethylene copolymers designed for light stabilization and electrical insulation. Ozeki is credited with 2 patents.

Latest Patents

Ethylene Copolymer and Method of Producing Same. This patent describes producing a copolymer by radical polymerization of ethylene and a specified vinyl compound under high pressure and temperature. The vinyl compound makes up less than 1 mol% of the combined monomers, while at least 83% of its units are isolated between ethylene units in the polymer chain. The copolymer has a melt flow rate of 0.1 to 200 g/10 min and is designed to provide effective light stabilization despite its low vinyl-compound content.

Ethylene Copolymer and Process for the Production Thereof. This patent covers an ethylene copolymer containing units derived from a specified ethylenically unsaturated acid halogenated phenyl ester. The ester-derived units account for approximately 0.005 to 10 mol% of the copolymer. The material is described as combining dielectric breakdown performance with flexibility and long-term stability, making it suitable for insulation in extra-high-voltage electric cables.

Career Highlights

Ozeki’s listed inventions focus on modifying ethylene polymers to achieve useful material properties. One addresses photo stabilization, while the other targets durable electrical insulation with flexibility.

Collaborations

The supplied information identifies Yoshikazu Higaki and Takeo Shimada as Ozeki’s coworkers. It does not specify their roles in the listed patents.

Conclusion

Yuji Ozeki’s two listed patents demonstrate a focus on specialized ethylene copolymers for light-stabilizing applications and high-voltage cable insulation.