Patents by Inventor Masatsugu Maejima
Masatsugu Maejima has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10668187Abstract: A method of producing metallic medical supplies includes supplying a metallic material selected from the group consisting of Ti, a Ti alloy, stainless steel and a Co—Cr alloy as a base material; treating the base material by carrying out anodic oxidation treatment in which an acid electrolytic bath or an alkali electrolytic bath is used as an electrolytic solution, and pulsed current having a frequency of 50 to 10,000 Hz is applied to the base material in the electrolytic solution to carry out electrolysis treatment to form a film having micro pores and/or micro unevennesses having a density of 5×104/mm2 or more on a surface of the base material; and carrying out iodine-impregnation treatment to impregnate the film with iodine or iodine compounds, wherein the metallic medical supplies have an antimicrobial activity value of not less than 2 to not more than 4.Type: GrantFiled: February 13, 2018Date of Patent: June 2, 2020Assignee: PROSTEC Co., Ltd.Inventors: Hiroyuki Tsuchiya, Matsufumi Takaya, Masatsugu Maejima
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Publication number: 20180243483Abstract: A method of producing metallic medical supplies includes supplying a metallic material selected from the group consisting of Ti, a Ti alloy, stainless steel and a Co—Cr alloy as a base material; treating the base material by carrying out anodic oxidation treatment in which an acid electrolytic bath or an alkali electrolytic bath is used as an electrolytic solution, and pulsed current having a frequency of 50 to 10,000 Hz is applied to the base material in the electrolytic solution to carry out electrolysis treatment to form a film having micro pores and/or micro unevennesses having a density of 5×104/mm2 or more on a surface of the base material; and carrying out iodine-impregnation treatment to impregnate the film with iodine or iodine compounds, wherein the metallic medical supplies have an antimicrobial activity value of not less than 2 to not more than 4.Type: ApplicationFiled: February 13, 2018Publication date: August 30, 2018Inventors: Hiroyuki Tsuchiya, Matsufumi Takaya, Masatsugu Maejima
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Patent number: 9889231Abstract: A method of producing metallic medical supplies includes supplying a metallic material as a base material; treating the base material by carrying out any one of electrochemical treatment, chemical treatment, thermal and/or mechanical treatment or a combination of two or more of these treatments to form a film having micro pores and/or micro unevennesses having a density of 5? 104/mm2 on a surface of the base material; and carrying out iodine-impregnation treatment to impregnate the film with iodine or iodine compounds.Type: GrantFiled: March 15, 2013Date of Patent: February 13, 2018Assignee: PROSTEC Co., Ltd.Inventors: Hiroyuki Tsuchiya, Matsufumi Takaya, Masatsugu Maejima
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Publication number: 20130240365Abstract: A method of producing metallic medical supplies includes supplying a metallic material as a base material; treating the base material by carrying out any one of electrochemical treatment, chemical treatment, thermal and/or mechanical treatment or a combination of two or more of these treatments to form a film having micro pores and/or micro unevennesses having a density of 5? 104/mm2 on a surface of the base material; and carrying out iodine-impregnation treatment to impregnate the film with iodine or iodine compounds.Type: ApplicationFiled: March 15, 2013Publication date: September 19, 2013Applicant: PROSTEC CO., LTD.Inventors: Hiroyuki Tsuchiya, Matsufumi Takaya, Masatsugu Maejima
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Publication number: 20110313539Abstract: Metallic medical supplies include a metallic material as a base material, and a film having micro pores and/or micro unevenness on a surface of the base material, wherein the micro pores and/or micro unevennesses are impregnated with iodine or iodine compounds.Type: ApplicationFiled: August 25, 2009Publication date: December 22, 2011Applicant: PROSTEC CO., LTD.Inventors: Hiroyuki Tsuchiya, Matsufumi Takaya, Masatsugu Maejima
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Patent number: 5336341Abstract: An infrared radiation element and a process for producing the same. An aluminum alloy material consists essentially of 0.3 to 4.3 weight % of Mn, balance Al, and impurities. The alluminum alloy material is heated for dispersing a precipitate of an Al--Mn intermetallic compound at a density of at a minimum 1.times.10.sup.5 /mm.sup.3 for a size of 0.1 .mu.m to 3 .mu.m. The heated aluminum alloy material is anodized to form an anodic oxide layer thereon.Type: GrantFiled: August 30, 1991Date of Patent: August 9, 1994Assignees: Fujikura Ltd., Sky Aluminium Co., Ltd.Inventors: Masatsugu Maejima, Koichi Saruwatari, Akihito Kurosaka, Mamoru Matsuo, Hiroyoshi Gunji, Toshiki Muramatsu
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Patent number: 4759805Abstract: The surface of an aluminum conductor is roughened, for example, by blasting. A hydrophilic film such as a boehmite film, an anodic oxide film and a chemical conversion film is formed on the roughened surface. A protective film made of a wetting agent or a hydrophilic resin is formed on the hydrophilic film. The conductor may comprise a compressed aluminum conductor.Type: GrantFiled: December 16, 1986Date of Patent: July 26, 1988Assignee: Fujikura Cable Works Ltd.Inventors: Kohichi Saruwatari, Takeshi Saito, Akira Okazato, Kozo Kounosu, Tadashi Inoue, Takanori Hita, Masatsugu Maejima
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Patent number: 4726443Abstract: A diaphragm using a metal material applied with anodic oxide films, in which said metal material contains one of lead compounds, inorganic metal compounds and phosphor compounds at least to a portion in the micropores of the anodic oxide film.Type: GrantFiled: October 3, 1985Date of Patent: February 23, 1988Assignee: Sony Corporation and Fujikura Ltd.Inventors: Masana Ugaji, Shinichi Watanabe, Hiroyuki Sogawa, Nobuo Fuke, Masatsugu Maejima, Koichi Saruwatari
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Patent number: 4483751Abstract: A process of treating an anodic oxide film wherein a base material of a valve metal is anodized to form the anodic oxide film thereon, which is then impregnated with a polymerizable organic metal compound and thereafter subjected to polymerization of the compound, whereby the micropores of the anodic oxide film are filled and sealed with the polymerized organometallic compound. According to this process, there is provided a base material having an anodic oxide film impregnated with polymerized organometallic compound which is excellent in heat resistance, heat radiance, and electrical insulation, and hence the base material is useful for the printed wiring board, electrically-insulative heat sink, heat-resistant insulated wire and the like.Type: GrantFiled: February 1, 1982Date of Patent: November 20, 1984Assignee: Fujikura Cable Works, Ltd.Inventors: Seizo Murayama, Kazuo Isawa, Masatsugu Maejima, Takayoshi Usuki, Kohichi Saruwatari
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Patent number: 4368107Abstract: A method of the surface treatment of a porous material which comprises the step of electrolyzing the porous material in an electrolytic bath composed of an aqueous solution of at least one salt selected from the group consisting of alkali metal thiotungstate, alkali metal thioantimonate, alkali metal thiostannate, alkali metal thiocuprate, alkali metal thioarsenate, alkali metal thioaurate, alkali metal thioplatinate, alkali metal thioniobate, alkali metal thiovanadate, alkaline earth metal thiotungstate, alkaline earth metal thioantimonate, alkaline earth metal thiostannate, alkaline earth metal thiocuprate, alkaline earth metal thioarsenate, alkaline earth metal thioaurate, alkaline earth metal thioplatinate, alkaline earth metal thioniobate, alkaline earth metal thiovanadate, ammonium thiotungstate, ammonium thioantimonate, ammonium thiostannate, ammonium thiocuprate, ammonium thioarsenate, ammonium thioaurate, ammonium thioplatinate, ammonium thioniobate and ammonium thiovanadate, to thereby impregnate thType: GrantFiled: June 11, 1981Date of Patent: January 11, 1983Assignee: Fujikura Cable Works, Ltd.Inventors: Masatsugu Maejima, Koichi Saruwatari, Kazuo Isawa
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Patent number: 4230539Abstract: A method for the surface treatment of anodic oxide film is disclosed which comprises the steps of electrolyzing the porous surface of anodic oxide film of aluminium or aluminium alloy in an aqueous solution of ammonium thiomolybdate, optionally immersing it in an aqueous solution of ammonium thiomolybdate or alkali metal thiomolybdate and in dilute mineral acid or organic acid alternately, and subjecting it to a heat treatment so as to impregnate the micropores of the anodic oxide film with molybdenum sulfide and to fix the molybdenum sulfide therein.Type: GrantFiled: July 9, 1979Date of Patent: October 28, 1980Assignee: Fujikura Cable Works, Ltd.Inventors: Kohichi Saruwatari, Kazuo Isawa, Masatsugu Maejima, Takao Suzuki
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Patent number: 4039697Abstract: A uniform, thick film is formed by applying a powdered metal, alloy, sulfide of metal or glass each particle of which is coated with plastics 1-15% by weight, preferably the particle surfaces having been treated with an aliphatic acid or a silane-type surface-treating agent and the plastics including an organic peroxide, to a substrate by electrostatic powder spraying, fluidized bed coating, electrophoretic deposition, or by electrostatic fluidization, and fixing the layer thus provided on the substrate with heating to such extent that the plastic ingredient is fused or volatilized, to finally produce the desired film. The materials having such films fixed thereon have a wide application for interior building and glass-lining and as material of bearings.Type: GrantFiled: August 21, 1974Date of Patent: August 2, 1977Assignee: The Fujikura Cable Works, Ltd.Inventors: Kazuo Isawa, Masatsugu Maejima, Hideo Nagasaka