Hitachi Chemical Company, Ltd.

Yoshiaki Tomisawa

Seiji Kinoda

Toshio Takeuchi

Susumu Takahashi

Ken Ogawa

Eiji Fujita

Keijiro Honda

Masanori Murata

Nobuyuki Hayashi

Tadaji Satou

Yusuke Miyamae

Hiromu Sukegawa

In this method for reduced pressure lamination of a light sensitive material in film form to a printed circuit base board, when adhering the light sensitive material in film form comprising a flexible support either continuous or cut to the dimensions of the base board and a light sensitive layer to the printed circuit base board under reduced pressure, a main container for carrying out the adhesion and an intake container and an exit container connected thereto are provided, the base board is supplied to the intake container set to atmospheric pressure, and thereafter the pressure in the intake container is reduced, next the base board is supplied into the main container at reduced pressure and the light sensitive material in film form is adhered to the base board, next the light sensitive material in film form is in the case that it is continuous to the dimensions of the base board, and after supplying the base board to which the light sensitive material in film form has been adhered to the exit container at reduced pressure, the exit container is set to atmospheric pressure and the base board to which the light sensitive material in film form has been ahdered is ejected from the exit container. A reduced pressure adhesion device is also described for performing the method.

Method employing input and output staging chamber devices for reduced

A developing or peeling solution for developing or imagewisely peeling an alkali-type photosensitive film containing a suspension of released photosensitive film is regenerated by introducing one or more reagents and a gas for depositing the suspension in floating state and removing the floated deposit by a skimmer from the developing or peeling solution. The regenerated developing or peeling solution can be used again and again for the development or peeling.

Apparatus for developing or peeling alkali-type photosensitive film

A developing or peeling solution for developing or imagewisely peeling an alkali-type photosensitive film containing a suspension of released photosensitive film is regenerated by introducing one or more reagents and a gas for depositing the suspension in floating state and removing the floated deposit by a skimmer from the developing or peeling solution, while a part or whole of the resulting treated solution is taken out of the system.

Process for regenerating solution for developing or peeling alkali-type

Process for developing or peeling alkali-type photosensitive film and

A seal structure for pressure sealing between a fixed member and a movable member. The seal structure is made of a flexible seal member formed with two opposite edges, one edge being fixed to the fixed member, while the other edge lies against and contacts the movable member. A free part of the flexible seal member between the two edges thereof is generally bent around, as seen from the free part of the flexible seal member closest to its fixed edge looking towards its free part closest to its contact edge. A first space is defined on the generally concave side of the flexible seal member, and a second space is defined on the generally convex side of the flexible seal member. A higher fluid pressure present in the first space presses the contact edge of the flexible seal member firmly against the movable member. A pressure sealed transfer mechanism including two rollers in contact with one another, and two such seal structures, for transferring a sheet between a higher pressure space and a lower pressure space, is also described.

Pressure seal structure and pressure sealed transfer mechanism

Growing community of inventors

Hitachi, Japan

Yoshiaki Tomisawa