Dai Nippon Insatsu Kabushiki Kaisha

Dai Nippon Printing Co., Ltd.

Matsushita Electric Industrial Co., Ltd.

Mitsuo Okabe

Kimiaki Hyakutome

Hideto Akiba

Junichi Hashikawa

Sadao Kuramochi

Makoto Tanaka

Minoru Yoshinaka

Kiichi Koike

Yoshie Suzuki

Shoichi Kubo

Shoko Yoshitake

Hirohito Tomita

A display medium employing a diffraction grating to define and represent a display pattern by the contour thereof, which enables the display pattern to move smoothly as the visual point moves and which allows the display pattern to move in various ways and is easy to produce. A display pattern ('DNP'), e.g., a character, an image, etc., is defined and displayed by the outer or inner contour of a diffraction grating (A or B) composed of a group of smooth curves, or a diffraction grating composed of a group of partial straight-line diffraction gratings that form polygonal lines linearly approximating smooth curves. Accordingly, as the visual point is moved relative to the display medium, a position that looks bright by diffraction moves smoothly and variously. If the display medium is illuminated by white light, the region that looks bright becomes a rainbow-colored region. Accordingly, the display pattern becomes not only readily recognizable but also interesting to view. Thus, display and design effects become extremely excellent. By varying the configuration of curves, the motion of the region that looks bright can be changed variously. Also disclosed is a method of producing a diffraction grating assembly for the display medium.

Display medium employing diffraction grating and method of producing

This invention relates to a container (10) provided with a metallic cover comprising a plastic container (14) provided with a flanged portion (15) and a metallic cover (11) provided with a peripheral edge portion (12) and having an improved reservation property obtained by improving a material of the container body (14) and the shape thereof, also relates to a method for manufacturing a container provided with a metallic cover comprising the steps of mounting a container body (214) provided with a flanged portion (215) in a recess (267a) of a retainer (267), conveying the container body (214) mounted in the recess (267a) of the retainer (267) and the metallic cover (211) to a seaming device (256), seaming the peripheral portion (212) of the metallic cover (211) to the flanged portion (215) of the container body (214) by the seaming device (256), and discharging the seamed container provided with the metallic cover from the seaming device (256), and further relates to a press-cut device which includes a vertically reciprocating intermediate bed (313) and an upper stationary table (315) disposed above the intermediate bed (313) and in which a pressing device (321) and a cutting device (323) are secured to the intermediate bed (313) and the stationary table (315) and a conveyer (317) is arranged between the pressing device (321) and the cutting device (323).

Container provided with metallic cover and method and apparatus for

Container with metallic cover and method of manufacturing the same

A packaging material comprising an outer layer of a heat shrinkable plastic film and a metallic glossy laminate which is disposed on the inner side of said outer layer and which maintains metallic gloss even after heat shrinkage. A heat shrunk package having beautiful metallic gloss can be obtained by the use of this packaging material.

Packaging materials

The present invention provides an enclosed lead storage battery comprising a plate assembly consisting of a positive plate, negative plates and a separator, an electrolyte held in position by the plate assembly, and a jacket made of film- or sheet-formed synthetic resin and surrounding the plate assembly and electrolyte. The jacket is of a multilayer laminate structure made by disposing a polyolefin film on the inside contacting the plate assembly and laminating a film of thermoplastic synthetic resin in two or more layers on the outside thereof. According to the present invention, the plate assembly can be encased with an unexpensive jacket of a simple construction, and the joint of the jacket to the pole posts of the plate assembly is strengthened to offer a leak-proof enclosed lead storage battery.

Enclosed lead storage battery and process for producing the same

Growing community of inventors

Yokohama, Japan

Mitsuo Okabe