公开(公告)号：CA1150338A

公开(公告)日：1983-07-19

申请号：CA363316

申请日：1980-10-27

Applicant: IBM

Inventor： SEIFERT HANS-GORDON

IPC: B41J9/38

Abstract: A magnet movable under the influence of magnetic edge forces is arranged between stationary magnets. The magnet is surrounded by a release coil in such a manner that the coil part contributing to the force active in the release direction is located in the space formed by the stationary magnets. GE97029

公开(公告)号：CA1199217A

公开(公告)日：1986-01-14

申请号：CA423104

申请日：1983-03-08

Applicant: IBM

Inventor： BRISKA MARIAN ,  SCHACKERT KLAUS ,  SEIFERT HANS-GORDON

IPC: G03F7/11 ,  B41C1/10 ,  G03F7/00 ,  G03F7/095 ,  B41F9/06

Abstract: OFFSET PRINTING FORM AND METHOD OF MAKING IT The offset printing form comprises a metal foil (1) rendered oleophobic and a superimposed micro-rough layer (2) in the form of the pattern to be printed, consisting of a resist filled with e.g. soot, possibly a thin metal layer (3) applied onto the resist layer (2), and a top layer (4) of photoresist. For making the offset printing form, a record carrier consisting of a metal foil (1) rendered oleophobic, a superimposed micro-rough resist layer (2) filled e.g. with soot, and a superimposed thin metal layer (3) with an inscribed pattern corresponding to the pattern to be printed, is blanket deposited with a layer (4) of a photoresist which is subsequently blanket irradiated, the radiation being reflected several times where the photoresist layer (4) lies on the metal layer (3), between the interface photoresist-aluminum and photoresist-air, and being subsequently developed. Simultaneously with development, or subsequently, exposed regions of metal layer (3) are removed, and finally the exposed regions of resist layer (2) are removed.

公开(公告)号：CA1061463A

公开(公告)日：1979-08-28

申请号：CA240344

申请日：1975-11-21

Applicant: IBM

Inventor： SEIFERT HANS-GORDON

IPC: G11B17/32 ,  G11B5/55 ,  G11B5/60 ,  G11B17/02 ,  G11B17/038 ,  G11B17/30 ,  G11B5/82 ,  G11B25/04 ,  G11B5/54

Abstract: MULTIPLE FLEXIBLE RECORD STORAGE DISK APPARATUS HAVING AN ACCESS ARM WITH ENHANCED DISK STABILIZING FEATURES An access arm for use in a flexible magnetic disk pack for a magnetic disk storage apparatus having a wedge-shaped hollow body with a lower horizontal confining surface supporting a magnetic head and an upper confining surface arranged at an angle thereto. When the access arm is inserted into the disk pack, the two confining surfaces form a flow channel for the air moved by the rotation of the disks. On the leading and on the trailing side of the access arm the upper confining surface has protruding parts, so that additional stabilizing air bearing forces are generated on the magnetic disk adjacent the lower confining surface.