Dai Nippon Printing Co., Ltd.

Takuya Yamazaki

Koji Shimizu

Kenichiro Suto

Hiroshi Miyama

Hideki Kurokawa

Kiyoshi Oguchi

Jun Fukuda

Hitoshi Sekino

Masahiro Yoshikawa

Tsutomu Yoshinaka

Katsuhiko Hayashi

Rikiya Yamashita

Hiroyuki Nishimura

Hiroshi Matsuzaki

Masanori Umeya

Takanori Aono

A battery packet () comprises a battery case () formed by processing a battery case forming laminated sheet (), a batterycontained in the battery case (), and tabs () extending outside from the battery case (). The battery case forming laminated sheet () is formed by laminating a first base film layer (), i.e., an outermost layer, a metal foil layer (), and a heat-adhesive resin layer () in that order. The first base film layer () is a biaxially oriented polyethylene terephthalate resin film or a biaxially oriented nylon resin film. The metal foil layer () is an aluminum or copper foil. The heat-adhesive resin layer () is formed of a polyolefin resin, more preferably, of an acid-denatured polyolefin resin.

Battery case forming sheet and battery packet

The present invention provides a method of producing simply and precisely an anisotropic optical element having optical properties that are anisotropic with respect to a direction of a normal to an element plane. After forming an uncured film by applying flatwise a radiation-polymerizable cholesteric liquid crystal to a substrate (step), the film is heated to convert the cholesteric phase of the liquid crystal in the film into an isotropic phase (step). Thereafter, the isotropic phase of the liquid crystal in the film is converted into the cholesteric phase thereof, with a gas blown on the film from a predetermined direction (step). By doing so, the liquid crystal is oriented in such a manner that a mean direction of directions of helical axes (a main direction of helical axes) in liquid crystal domains in the film is tilted, relative to a direction of a normal to a film plane, along a stream of the gas blown. Lastly, the liquid crystal in the film is polymerized with the phase of the liquid crystal in the film maintained cholesteric (step). By this, the above-described state of orientation of the liquid crystal in the film is fixed as it is, and there is produced an anisotropic optical element having optical properties that are anisotropic with respect to the direction of the normal to the element plane.

Method of producing anisotropic optical element

A battery packet ( ) comprises a battery case ( ) formed by processing a battery case forming laminated sheet ( ), a battery contained in the battery case ( ), and tabs ( ) extending outside from the battery case ( ). The battery case forming laminated sheet ( ) is formed by laminating a first base film layer ( ), i.e., an outermost layer, a metal foil layer ( ), and a heat-adhesive resin layer ( ) in that order. The first base film layer ( ) is a biaxially oriented polyethylene terephthalate resin film or a biaxially oriented nylon resin film. The metal foil layer ( ) is an aluminum or copper foil. The heat-adhesive resin layer ( ) is formed of a polyolefin resin, more preferably, of an acid-denatured polyolefin resin.

Sheet for cell and cell device

A laminated structure (,) has a heat sealant layer (,), an antistatic layer (,) of a bisammonium organic sulfur semiconductor formed on one surface of the heat sealant layer (,). An oriented resin layer (,) is formed on the other surface of the heat sealant layer (,). The laminated structure (,) is adhered to a container with a side thereof on the side of the antistatic layer (,) to the container.

Laminated structure, covering structure and pouch

Growing community of inventors

Shinjuku-ku, Japan

Takuya Yamazaki