Hirai Engineering Corporation

Faco Corporation Ltd.

Keisuke Hirai

Takashi Hirai

A roof system utilizing a solar cell comprising a first modular roof member composed of a plurality of first light collecting plate segments each of which having a solar cell embedded therein, the first light collecting plate segments being aligned in one direction and in the other direction perpendicular to the one direction; and a second modular roof member composed of a plurality of second light collecting plate segments each of which is equal in size to the first light collecting plate segment, the second light collecting plate segments being aligned in one direction and in the other direction perpendicular to the one direction, the number of the second light collecting plate segments in one direction being larger by one than that of the first light collecting plate segments.

Roof system utilizing a solar cell

A roof apparatus includes a plurality of light collecting members, each having a pair of left and right vertical members, an upper horizontal member, a lower horizontal member, and a transparent plate. The upper horizontal members are disposed at a ridge side end of the vertical members, the lower horizontal members are disposed at an eaves side end of the vertical members, and the transparent plate is disposed on the inner periphery of the vertical members, the upper horizontal member, and the lower horizontal member. The light collecting members are connected in a slope direction of the roof, and the lower horizontal member has a transparent plate holding piece, a transparent plate contact wall, and a cover piece. The transparent plate holding piece is adapted to hold an eaves side end of the transparent plate. The transparent plate contact wall has a thickness which is smaller than the thickness of the transparent plate. The cover piece is adapted to cover an upper portion of the upper horizontal member of an adjacent eaves side light collecting member and extends from the upper end of the transparent plate contact wall.

Roof apparatus

Disclosed is a negative-electrification toner for use in electrophotography. The toner comprises a resin, essentially consisting of a solid silicon varnish, and a colorant so that the resultant latent image can be easily erased or eliminated by the use of a rubber eraser. The novel toner, essentially consisting of a solid silicon varnish, has a low softening point and, as a result, the latent image produced can be easily erased.

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Tokyo, Japan

Keisuke Hirai