Shin-etsu Polymer Co., Ltd.

Yoshinari Shizukuda

Takao Shimizu

Tsutomu Nagasawa

Satoshi Mieno

Masahide Takahashi

Nobuyuki Hiruma

A wiper blade () comprising a base portion () to be attached to a wiper arm, a lip portion () to sweep away a water droplet or dust etc. adhered to a glass window, a thin neck portion () for connecting the lip portion () and the base portion (), and a sweeping surface layer portion formed on a side surface of a cross section of the lip portion (), the sweeping surface layer () comprising a scale-like powder () having good sliding property and a binder () comprising a water-repellency silicone-base rubber composition for binding the scale-like powder () to the lip portion (). The scale-like powder () is laminated in a thickness direction of the lip portion () and the laminated scale-like powder is bound to each other with the binder ().

Wiper blade and method for producing the same

A wiper blade () includes a base portion () to be attached to a wiper arm, a lip portion () to sweep away a water droplet or dust etc. adhered to a glass window, a thin neck portion () for connecting the lip portion () and the base portion (), and a sweeping surface layer portion formed on a side surface of a cross section of the lip portion (), with the sweeping surface layer () including a scale-like powder () having a good sliding property and a binder () including a water-repellency silicone-base rubber composition for binding the scale-like powder () to the lip portion (). The scale-like powder () is laminated in a thickness direction of the lip portion () and the laminated scale-like powder is bound to each other with the binder ().

Wiper blade

A key top member for a push button switch structure capable of facilitating change and modification of a design while eliminating deformation and misregistration of a display section, being accommodated to a variety of data, being increased in design properties and visibility, and being reduced in manufacturing cost. An upper resin sheet made of thermoplastic resin and having display sections such as a letter, a symbol, a pattern or the like printed thereon is formed with projections having configurations conforming to outer configurations of key top elements. The projections are each securely provided therein with a filler member made of photo-setting resin directly or through an adhesive.

Method for manufacturing a key top member for push button switch structure

Key top member for push button switch structure

A key top element capable of being manufactured while permitting a design of a display section thereof to be readily modified and corrected, accommodating a variety of data for design formation, and capable of exhibiting increased design properties. The key top element includes a printed sheet constituted by a substrate sheet member, an on-demand printed layer and a white- or silver-colored layer, as well as transparent key top members fixedly bonded to the printed sheet. The on-demand printed layer is printed in the form of a symbol or the like on the substrate sheet member using an on-demand printing machine. A push button switch element is also disclosed which includes such a key top element and a light-permeable rubber cover base bonded to the key top element.

Growing community of inventors

Saitama, Japan

Yoshinari Shizukuda