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Kabushiki Kaisha Naka Gijutsu Kenkyusho Patents
Assignee:
Kabushiki Kaisha Naka Gijutsu Kenkyusho
Address:
Sapporo, JP
No. of patents:
14
Patents:












Patent Number Title Of Patent Date Issued
D273995 Access door May 22, 1984
D273994 Access door May 22, 1984
4843789 Ceiling construction July 4, 1989
A ceiling construction for buildings has a plurality of flanged main beams disposed in a predetermined spaced relationship to each other and bridging wall mouldings opposed and spaced from each other; a plurality of flanged cross beams connected to the main beams in a predetermined space
4646490 Top rail for use with handrails March 3, 1987
A top rail for handrails comprises a top rail body formed of soft synthetic resin, semi-hard synthetic resin or synthetic rubber and having a bendable metal core incorporated therein extending in the longitudinal direction thereof. The bendable metal core is bendable under a force in exc
4619086 Ceiling construction October 28, 1986
A ceiling construction for buildings has a plurality of flanged main beams disposed in a predetermined spaced relationship to each other and bridging wall mouldings opposed and spaced from each other; a plurality of flanged cross beams connected to the main beams in a predetermined space
4602766 Top rail of a handrail July 29, 1986
A top rail for handrails comprises a top rail body formed of soft synthetic resin, semi-hard synthetic resin or synthetic rubber and having a bendable metal core incorporated therein extending in the longitudinal direction thereof. The bendable metal core is bendable under a force in exc
4593493 Access door June 10, 1986
An access door to be installed on the ceiling or the like of a building which essentially comprises an outer square frame adapted to be installed in an opening formed at said installation area; an inner square frame pivotally connected to said outer frame for movement between open and
4566233 Ceiling construction January 28, 1986
A ceiling construction for buildings has a plurality of flanged main beams disposed in a predetermined spaced relationship to each other and bridging between wall mouldings opposed and spaced from each other; a plurality of flanged cross beams connected to the main beams in a predetermin
4486987 Stair nosing December 11, 1984
A stair nosing is constituted by a flat frame for lying on a tread of a stair, a non-skid flat tire-like sheet adapted to be snappedly engaged to the flat frame and a tongue-shaped protector for the engaging portion of the flat sheet frame and the non-skid flat sheet. The non-skid flat s
4455797 Stair nosing June 26, 1984
A stair nosing is constituted by an edge base made of a hard material and adapted to be installed on the tread of a stair step, and an edge bead cushion formed on a surface of the edge base so as to be located at the stair tread nosing of the stair step. A positioning groove is formed on
4443973 Access door and framing apparatus for the access door's framework April 24, 1984
An access door is constituted by an outer framework adapted to be fitted in a rough opening formed in a building ceiling, wall, or the like, an inner framework set in an opening in the outer framework, a cover plate secured to the inner framework so as to close an opening in the inner fr
4244443 Drawer type emergency escape January 13, 1981
A drawer type emergency escape is constituted by a stowage box attached to a support, a slidable frame normally received in the stowage box and extended out of the stowage box as the escape is employed, and a shift mechanism for pulling the slidable frame out of the stowage box as the
4240521 Drawer type emergency escape December 23, 1980
A drawer type emergency escape is constituted by a stowage box adapted to be attached to a support, a slidable frame adapted to be slidably extended out of and retracted into the stowage box, a telescopically extensible escape means attached to the slidable frame to be received into and
4220316 Top rail for use on railing construction September 2, 1980
A top rail for use in connection with a railing construction or the like is constituted by a main top rail member, a resilient cushion layer fitted on the main top rail member, and a surface portion layer integrally formed with the outer surface of the resilient cushion layer. the main t

 
 
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