Patents Assigned to Shikien Co., Ltd.
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Patent number: 11542647Abstract: Provided is a method for manufacturing a sheet for use in a tongue plaque cleaner, capable of reliably cutting loops of thread members provided at a given density, and forming thread members each having a shape with an arc portion sufficient enough to scrape off tongue plaque, through steps that are simple, low-cost and suitable for mass production. A method for manufacturing a sheet 1 for use in a tongue plaque cleaner for scraping off tongue plaque, includes: a step of heating a sheet material having multiple looped thread members 2 protruding from one surface of the sheet material, at a temperature below the melting point of the thread members 2; and a step of forming first thread members 3, 8 and second thread members 4, 9 by cutting loops of the thread members 2 heated.Type: GrantFiled: February 15, 2018Date of Patent: January 3, 2023Assignees: SHIKIEN CO., LTD., NIIGATA UNIVERSITYInventors: Michio Tanaka, Makoto Inoue
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Publication number: 20190040561Abstract: Provided is a method for manufacturing a sheet for use in a tongue plaque cleaner, capable of reliably cutting loops of thread members provided at a given density, and forming thread members each having a shape with an arc portion sufficient enough to scrape off tongue plaque, through steps that are simple, low-cost and suitable for mass production. A method for manufacturing a sheet 1 for use in a tongue plaque cleaner for scraping off tongue plaque, includes: a step of heating a sheet material having multiple looped thread members 2 protruding from one surface of the sheet material, at a temperature below the melting point of the thread members 2; and a step of forming first thread members 3, 8 and second thread members 4, 9 by cutting loops of the thread members 2 heated.Type: ApplicationFiled: February 15, 2018Publication date: February 7, 2019Applicants: SHIKIEN CO., LTD., NIIGATA UNIVERSITYInventors: Michio TANAKA, Makoto INOUE
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Publication number: 20160183959Abstract: Provided is an intraoral cleaner capable of widely cleaning the interior of the oral cavity due to the fact that a head portion thereof does not include an element corresponding to a ring portion found in conventional tongue cleaners. The intraoral cleaner includes a rod-shaped grip and a flat and thin head portion provided on the front end of the rod-shaped grip. The head portion is composed of a pouch-shaped sheet and a core portion filling the interior of the pouch-shaped sheet. The entire outer surface of the pouch-shaped sheet is equipped with linear members for scraping out dirt inside the oral cavity.Type: ApplicationFiled: March 8, 2016Publication date: June 30, 2016Applicant: SHIKIEN CO., LTD.Inventor: Michio TANAKA
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Publication number: 20160100850Abstract: Provided is a tongue cleaner comprising: a head 1 forming a main body of said tongue cleaner; and a plurality of linear materials 31, 41, 51, 61 protruding from said head 1 and comprised of a loop pile; wherein said plurality of linear materials make up a plurality of linear material groups 65 to 69 comprised of at least two of said linear materials 31, 41, 51, 61 protruding from a pair of common loop-starting points 71, and a loop shape of said linear material 31, 41, 51, 61 differs from one another in each linear material group 65 to 69.Type: ApplicationFiled: December 21, 2015Publication date: April 14, 2016Applicant: Shikien Co., Ltd.Inventor: Michio Tanaka
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Publication number: 20150100074Abstract: Provided is an intraoral cleaner capable of widely cleaning the interior of the oral cavity due to the fact that a head portion thereof does not include an element corresponding to a ring portion found in conventional tongue cleaners. The intraoral cleaner includes a rod-shaped grip and a flat and thin head portion provided on the front end of the rod-shaped grip. The head portion is composed of a pouch-shaped sheet and a core portion filling the interior of the pouch-shaped sheet. The entire outer surface of the pouch-shaped sheet is equipped with linear members for scraping out dirt inside the oral cavity.Type: ApplicationFiled: December 6, 2013Publication date: April 9, 2015Applicant: SHIKIEN CO., LTD.Inventor: Michio Tanaka
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Publication number: 20120095486Abstract: A tongue cleaner in which a gap between a concavely curved surface formed in a cleaner head and a sheet for covering the same is minimized or eliminated, decreasing the likeliness of tongue coating to accumulate therebetween. A head is provided with a first sheet on a face of the head formed with a concavely curved surface. The sheet is fixed to a lateral side of the head, enabling the sheet opposed to the concavely curved surface to be slidable thereon. After arranging a sheet material on the concavely curved surface with the head being in a single-piece state as a component of the tongue cleaner, the sheet material is pressed against the concavely curved surface by means of a lower mold and an upper mold.Type: ApplicationFiled: October 5, 2011Publication date: April 19, 2012Applicant: Shikien Co., Ltd.Inventor: Michio Tanaka
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Publication number: 20090131960Abstract: The present invention aims at providing a tongue cleaner which can be used with one hand without damaging an inside surface of a roof of the mouth. A tongue cleaner of the present invention comprises a head 1, and a rod-shaped handle 3 connected to one end of the head 1. The tongue cleaner includes, on either its front or its back face, a flat and thin head with a concavely curved face having a valley portion extending parallel to a longitudinal direction of the rod-shaped handle, and a woven textile 4 having a roughened surface, serving as a sheet having a porous or multi-gap structure, attached to the concavely curved face 1a. When cleaning both sides of a tongue, the concavely curved face 1a of the head 1 is used. The head 1 can be moved back and forth while pressing it against a tongue, without causing any concerns for possible lateral displacement of the head on the surface of the tongue and without causing nausea during the cleaning.Type: ApplicationFiled: August 21, 2008Publication date: May 21, 2009Applicants: Shikien Co., Ltd., Mikio YuzawaInventor: Michio Tanaka