发明授权
- 专利标题： High tensile strength film having constant tear-direction
- 专利标题（中）： 具有恒定撕裂方向的高抗拉强度膜
-
申请号： US461765申请日： 1995-06-05
-
公开(公告)号： US5560966A公开(公告)日： 1996-10-01
- 发明人: Hisao Kishimoto , Akifumi Hirata
- 申请人： Hisao Kishimoto , Akifumi Hirata
- 申请人地址： JPX Kanagawa
- 专利权人： Fuji Photo Film Co., Ltd.
- 当前专利权人： Fuji Photo Film Co., Ltd.
- 当前专利权人地址： JPX Kanagawa
- 优先权： JPX4-169620 19920626
- 主分类号： G03C1/765
- IPC分类号： G03C1/765 ; G03C1/795 ; B32B3/10 ; G03C3/00
摘要：
A high tensile strength film has at least one small aperture or slit for tearing the film in a direction normal to a longitudinal direction of the film. The aperture has at least one apex which has an acute angle and is directed toward a direction normal to a longitudinal direction of the film. The aperture is in the form of a triangle, a polygon, an oval or a crescent moon.
公开/授权文献
- USD308699S Accessory drawer for use primarily in a mailroom 公开/授权日：1990-06-19