Japan, Sept. 16 -- SANWA SHUTTER CORP has got intellectual property rights for 'DOOR FRAME STRUCTURE.' Other related details are as follows:

Application Number: JP,2022-171936

Category (FI): E06B1/02,E06B1/12@Z,E06B1/56@Z

Stage: PROBLEM TO BE SOLVED: To provide a door frame structure with a simple configuration.SOLUTION: A door frame structure configured such that in an inner space of an opening formed in a wall body 1, a pair of pillars 2 are provided which are located on the left and right sides of the opening and extending in the height direction, upper ends of the pillars 2 are connected to a ceiling 3 of the inner space, lower ends of the pillars 2 are connected to a floor 4 of the inner space, an upper frame 5 at an upper end of th...