Central Glass Company, Limited

Kazuhiko Fujii

Tohru Hirotsu

Tokio Tsukada

Takao Horie

Kazuya Nishikawa

Yoji Nagayama

Masao Shinnai

Shingo Tadokoro

Automotive window glass to which a molding for sealing space between a car body and the window glass is to be attached, the window glass including, an attachment starting point mark indicating an attachment starting point of the molding, and at least one of a termination starting point mark and a termination last point mark in a specification range in which a termination of the molding, of which an attachment to the window glass being started from the attachment starting point, is to be placed.

Automotive window glass, method for attaching a molding, and method for manufacturing automotive window glass

The invention relates to an antenna on a vehicle rear window glass for the reception of FM radio broadcasting and TV broadcasting in both the VHF and UHF bands. The window glass is provided with defogging heater strips, and the antenna uses a space left above the heater strips. The antenna is constructed of a plurality of linear elements comprising (A) a combination of two primary elements, which are spaced from each other in the direction widthwise of the window glass and each of which has two parallel horizontal parts and at least one relatively short vertical part connecting the two horizontal parts at their ends, and a linear conductor connecting the two primary elements to each other, (B) a secondary element having a vertical part extending upward from a selected part of the combination (A) and a horizontal part extending from the upper end of the vertical part toward a side edge of the window glass and (C) a reactance element which extends downward from the extended end of the horizontal part of the secondary element (B) and makes at least two turns so as to have at least one L-shaped portion in which one leg part is parallel to another part of the reactance element. At the extended end of the reactance element (C) the antenna is connected to a feed point which is located near the side edge of the window glass.

Wide-band antenna on vehicle rear window glass

The invention relates to an antenna on a vehicle rear window glass for the reception of FM radio broadcasting and TV broadcasting in both the VHF and UHF bands. The window glass is provided with defogging heater strips, and the antenna uses a space left above the heater strips. The antenna is constructed of a plurality of linear elements comprising (A) a combination of two primary elements, which are spaced from each other in the direction widthwise of the window glass and each of which makes the perimeter of a horizontally elongate rectangle or two horizontal sides and one vertical side of the rectangle, and a connection line which connects the two primary elements to each other and (B) a secondary element having a first part which extends from one of the two primary elements or the connection line to a point between the combination (A) and the upper edge of the window glass and a second part which extends horizontally from said point toward a side edge of the window glass and is connected to a feed point located near the side edge of the window glass. Optionally a supplementary element or supplementary elements may be connected to the combination (A) and/or the secondary element (B).

The invention provides a vehicle window glass antenna for transmission and reception of ultrashort waves used for mobile phones and/or personal radios. The antenna has a primary antenna which is a combination of at least two vertical (in the sense of perpendicular to a horizontal line) elements and at least two horizontal elements each of which directly connects with at least one of the vertical elements and a secondary antenna which is essentially a horizontally elongate element located in a space between the primary antenna and the lower or upper edge of the window glass. The primary antenna is arranged within a rectangular area having a limited horizontal width and a limited length, and the horizontal element of the secondary antenna has a limited length. The antenna feeder is a coaxial cable, and the primary antenna and the secondary antenna are connected with the inner conductor and the outer conductor of the coaxial cable, respectively. In a preferred embodiment the major part of the primary antenna is in the form of a rectangular grid.

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Matsusaka, Japan

Kazuhiko Fujii