Shin-etsu Polymer Co., Ltd.

Masahide Takahashi

Yoshinari Shizukuda

Nobuyuki Hiruma

Tsutomu Nagasawa

Toshihiko Egawa

Tomohiko Kuwabara

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 member for a push-button switch has key top members positioned close to each other through a distance of 1.5 mm or shorter at low cost and with high yield. The member has multiple key top members having resin key top cores and thermoplastic films covering the key top cores other than the lower surfaces thereof. The key top members are formed so that an interval between at least one set of adjacent key top members is 1.5 mm or shorter. In the key top members adjacent to each other through a distance of 1.5 mm or shorter, the maximum thickness of the thermoplastic films covering the key top cores is within the range of 75 to 350 &#x3bc;, and the ratio of the minimum thickness of the thermoplastic films covering the key top cores to the maximum thickness is within the range of 0.4 to 0.9.

Member for push-button switch and method of manufacturing 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 ().

Growing community of inventors

Saitama, Japan

Masahide Takahashi