Toray Industries, Inc.

Junji Michizoe

Akimitsu Tsukuda

Masakazu Koiwa

Masanori Sueoka

Nobuo Ida

Atsushi Sawamoto

Reiji Nishio

Yoichiro Koshi

Yoshinori Kakizawa

Taisuke Hirano

Do Kyun Kim

Kazuma Matsui

Kohei Sato

A laminated film includes, at least on one side thereof, a layer containing a hardening resin, having a total thickness of 1 to 100 &#x3bc;m, a light transmittance of 70% or more at a wavelength of 400 nm, a Young's modulus of 5 GPa or more when applying a nanoindenter to make a 1 &#x3bc;m depression in the thickness direction into the surface of the hardening layer, and undergoing a rate of deformation of 500 ppm or less after applying a stress of 0.5 MPa for 30 minutes.

Multilayer film

A microparticle includes an agglomerate of a hydrophilic active substance containing particle, which particle includes an amphiphilic polymer composed of a hydrophobic segment of poly(hydroxy acid) and a hydrophilic segment of polysaccharides or polyethylene glycol, and a hydrophilic active substance. It is characterized by an efficient inclusion of the hydrophilic active substance, and a release of the hydrophilic active substance at an appropriate speed in the human body, and is hence very useful as a DDS pharmaceutical preparation.

Microparticle and pharmaceutical composition thereof

Growing community of inventors

Gumi, South Korea

Junji Michizoe