Patents Assigned to Duskin Co., Ltd.
  • Patent number: 8153262
    Abstract: Disclosed is a strippable floor coating which includes an undercoat layer (A) to be applied to a floor surface, and a strippable overcoat layer (B) over the undercoat layer (A). The undercoat layer (A) is formed from an undercoating agent mainly containing a wax or analogue thereto and having film-formability. The overcoat layer (B) is formed from a floor polish composition mainly containing an aqueous emulsion. The undercoat layer (A) has greater adhesion to the floor surface than to the overcoat layer (B). Even when applied to various flooring materials, this strippable floor coating does not peel off practically and is excellent in soiling resistance and wear resistance to retain a beautiful appearance over long time. If necessary, the coating can be easily stripped off.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: April 10, 2012
    Assignees: Duskin Co., Ltd., Konishi Co., Ltd.
    Inventors: Fumitoshi Ogino, Yoshio Okura
  • Mat
    Patent number: 6057023
    Abstract: A mat, in which a pile yarn is tufted onto a base cloth and the entire or a part of pile shape is a cut pile. A part of or the entire pile yarn on a mat surface comprises a twist yarn formed by twisting two or more temporary twist yarns together. Each temporary twist yarn is formed by twisting a paralleled yarn comprising a great number of single yarns of one-kind fiber selected voluntarily from BCF nylon, vinylon, rayon, acryl, polyester and cotton; and one or more nylon monofilament single yarns. A number of kind of paralleled yarn fiber is one or two or larger in the entire temporary twist yarn of the twist yarn. In this mat, merits of both: conventional outdoor and indoor mats, can be provided and demerits of them can be compensated.
    Type: Grant
    Filed: February 5, 1998
    Date of Patent: May 2, 2000
    Assignee: Duskin Co., Ltd.
    Inventors: Kikuo Shimono, Yuji Nagahama
  • Patent number: 5904901
    Abstract: A purpose of this invention is to provide an apparatus which can carry out a deodorization/odor-removal/disinfection work even on a large-scaled matter such as a room etc. effectively and efficiently. A deodorization/odor-removal/disinfection apparatus of this invention is equipped with an ozone generator (1), an ozone blow-off mechanism which blows generated ozone from a blow-off port (12), a device (2) which atomizes aqueous hydrogen peroxide, and an aqueous hydrogen peroxide blow-off mechanism which blows the atomized aqueous hydrogen peroxide from a blow-off port (32). This apparatus generates ozone and at the same time produces aqueous hydrogen peroxide under atomized state, makes the both contact each other and then makes them contact with an object.
    Type: Grant
    Filed: September 22, 1997
    Date of Patent: May 18, 1999
    Assignee: Duskin Co., Ltd.
    Inventors: Kikuo Shimono, Eiichi Tominaga, Masao Kajimaki
  • Patent number: 5887416
    Abstract: A rental mat in which a pile yarn is tufted onto a base cloth and the total or a part of pile shape is a cut pile. The pile yarn is composed of one BCF nylon twist yarn and one or more nylon monofilament single yarns. The BCF nylon twist yarn and the nylon monofilament single yarns are tufted as one pile yarn under a state of being twisted each other, and are separated and isolated respectively from the twisted state at a part of the cut pile on a mat surface.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: March 30, 1999
    Assignee: Duskin Co., Ltd.
    Inventors: Kikuo Shimono, Yuji Nagahama
  • Patent number: 5725705
    Abstract: A dust-control mat having excellent dimensional stability during the processing, good pile-erecting property and excellent pattern expression, and a method of producing the same. The dust-control mat having excellent dimensional stability comprises a base in which a base fabric is composed of a woven fabric or a nonwoven fabric and a floss-like nonwoven fiber layer coupled to the base, wherein the floss-like nonwoven fiber layer contains low-melting fibers and is thermally fixed after pile yarns are implanted thereon. The invention further provides a method of producing the dust-control mat.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: March 10, 1998
    Assignee: Duskin Co., Ltd.
    Inventors: Yuji Nagahama, Kazushi Sumimoto, Junji Taguchi
  • Patent number: 5680826
    Abstract: A shoe wiping mat with color pattern for rent, having a novel taffeted texture and vivid color pattern, excellent softness, dust-adsorbing property and dust-holding property, preventing undulation phenomenon on the mat surface even after repetitive use, and having excellent fitness to floor surfaces, resulting from the tilt of the stitches, zig-zag shape stitches and boundary lines, pitch of the stitches and position thereof.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: October 28, 1997
    Assignee: Duskin Co., Ltd.
    Inventors: Yuji Nagahama, Kazushi Sumimoto, Junji Taguchi
  • Patent number: 5524317
    Abstract: A separate mat for rent comprising a mat body made up of a mat portion having mat piles implanted on the front surface of a base fabric and an elastomer backing blended with a magnetic powder on the back surface, and a thick frame-like-peripheral portion of an elastomer; and a base which supports the mat body and has a magnet rubber spread on a support surface. In the mat body, the back surface of the outer periphery of the mat portion and the upper surface of the peripheral frame of the mat are superposed one upon the other and joined together as a unitary structure. The base rubber is inserted in the back side of the mat body. Therefore, no step is formed between the mat body and the base yet the two are adhered very strongly. Besides, no wrinkles develop on the mat surface and homogeneous adhesion is accomplished. The mat is further excellent in fixing performance and stability, and can be easily attached or detached, and is very light in weight compared with the mats of the unitary structure.
    Type: Grant
    Filed: November 16, 1994
    Date of Patent: June 11, 1996
    Assignee: Duskin Co., Ltd.
    Inventors: Yuji Nagahama, Junji Taguchi
  • Patent number: 5305565
    Abstract: By introducing an expanded structure into a rubber portion during heating under pressure at the time of integrating a mat, and by using as a backing of a carpet a foamed rubber sheet having an expansibility of 1.2 to 3 times and a skin layer having a thickness of 0.1 to 1.0 mm, the shrinkage of the mat by shrinking, washing and drying after heating under pressure can be relaxed, and the waving of the mat can be prevented effectively. At the same time, the mat of the invention has excellent fitness to a floor surface, light-weight, strength and heat resistance.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: April 26, 1994
    Assignee: Duskin Co., Ltd.
    Inventors: Yuji Nagahama, Tetsuo Miyake
  • Patent number: 5198278
    Abstract: In a mat composed of a base cloth, a pile tufted thereto, and a rubber backing applied to the non-pile surface of the base cloth, a cotton-like layer composed of a woven cloth of a polyester textured yarn non-adherent to the rubber and a filament or staple which layer is needle-punched is used. In this mat, weakly adherent regions at which the woven cloth and the rubber portion contact each other and strong adhesive regions at which the cotton-like layer and the rubber portion content each other are formed in dots in a large distribution. Waving deformation during repeated use is prevented.
    Type: Grant
    Filed: May 14, 1991
    Date of Patent: March 30, 1993
    Assignee: Duskin Co., Ltd.
    Inventors: Kazushi Sumimoto, Yuji Nagahama
  • Patent number: 4856854
    Abstract: A towel dispenser which includes a mechanism for eliminating towel sidewise displacement, a device for keeping a front lid open, and a locking device.
    Type: Grant
    Filed: June 19, 1987
    Date of Patent: August 15, 1989
    Assignees: Duskin Co., Ltd., Matsushita Electric Industrial Co.
    Inventors: Masanobu Nishiyama, Haruo Nishimura, Katsuji Nakano, Ozaki: Tatsuo, Akira Kitamoto
  • Patent number: 4746176
    Abstract: The towel dispenser adapted to store and supply a towel of undeterminate length. At least one of the unused and used portions of the towel is stored in the form of a roll on a shaft. The towel dispenser includes a pair of side walls each having at least one elongated hole. The portion of the side wall defining the inner peripheral edge of the elongated hole is obliquely bent towards each respective other side wall so as to form a tab projecting towards the other side wall. Each end of the shaft is rotatably and slidably received in the respective elongated hole defined by the respective tab, in such a manner that each end of the shaft does not project beyond the plane of the associated side wall.
    Type: Grant
    Filed: December 30, 1986
    Date of Patent: May 24, 1988
    Assignees: Duskin Co., Ltd., Matsushita Electric Industrial Co., Ltd
    Inventors: Masanobu Nishiyama, Haruo Nishimura, Katsuji Nakano, Tatsuo Ozaki, Teruo Yamada, Koichi Nakagawa, Akira Kitamoto
  • Patent number: D424357
    Type: Grant
    Filed: January 7, 1998
    Date of Patent: May 9, 2000
    Assignee: Duskin Co., Ltd.
    Inventors: Yoshihisa Fujihara, Kenji Terasawa
  • Patent number: D424857
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: May 16, 2000
    Assignee: Duskin Co., Ltd.
    Inventors: Yoshihisa Fujihara, Kenji Terasawa