Fujifilm Corporation

Masami Nakagame

Hiroyuki Nishida

Tatsuya Fujinami

Jun Fujinawa

Norihiro Kadota

Toshiya Takahashi

Tomoo Murakami

Daisuke Onodera

Hideaki Takeuchi

Meiki Ooseki

A functional film having a particular organic film and a particular inorganic film is produced. The functional film is consistently produced and exhibits the intended performance. The functional film production method includes forming an organic film on a surface of a substrate, handling the substrate having the organic film formed thereon so that no member comes in contact with an organic film surface in vacuum until formation of an inorganic film, and forming the inorganic film by vacuum deposition on the organic film surface.

Method for producing functional film

The conveying unit conveys a long sheet-like subject in its longitudinal direction. The conveying unit includes a stepped roller which has large-diameter portions spaced apart from each other in a direction perpendicular to a direction of conveyance of the sheet-like subject and having a larger diameter than a remainder of the stepped roller being a small-diameter portion of the stepped roller, the large-diameter portions supporting and conveying the sheet-like subject, a closed space forming subunit between the small-diameter portion of the stepped roller and the sheet-like subject and a gas supply subunit for supplying a gas to the closed space. The vacuum deposition device forms a film on a surface of a long substrate by vacuum deposition. The vacuum deposition device includes a vacuum chamber, a conveying device which includes the conveying unit and a film forming unit.

Conveying unit and vacuum deposition device

The method for producing a functional film includes a step of forming an organic film on a surface of a substrate and a step of forming an inorganic film by vacuum deposition on a surface of the organic film to produce the functional film. Prior to forming the inorganic film, a member contacts the surface of the organic film in a vacuum chamber at portions where the organic film does not exhibit its functions.

Growing community of inventors

Odawara, Japan

Masami Nakagame