Patents by Inventor Akinori Eshita
Akinori Eshita 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: 11936040Abstract: To provide electrolytic manganese dioxide excellent in low rate characteristics and middle rate characteristics when used as a cathode material for alkaline manganese dry cells, and a method for its production. Electrolytic manganese dioxide of which the apparent density is at least 4.0 g/cm3 and at most 4.3 g/cm3, and the mode particle size is at least 30 ?m and at most 100 ?m; a method for its production and its application.Type: GrantFiled: August 23, 2019Date of Patent: March 19, 2024Assignee: TOSOH CORPORATIONInventors: Naoto Suzuki, Akinori Eshita
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Publication number: 20220033274Abstract: To provide electrolytic manganese dioxide excellent in cell performance in high rate discharge and middle rate discharge when used as a cathode material for alkaline manganese dry cells, and a method for its production. Electrolytic manganese dioxide, characterized in that the average size of mesopores is at least 6.5 nm and at most 10 nm, and the alkali potential is at least 290 mV and at most 350 mV; a method for its production and its application.Type: ApplicationFiled: November 22, 2019Publication date: February 3, 2022Applicant: TOSOH CORPORATIONInventors: Naoto SUZUKI, Akinori ESHITA, Takayuki SHOJI
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Publication number: 20210336256Abstract: To provide electrolytic manganese dioxide excellent in low rate characteristics and middle rate characteristics when used as a cathode material for alkaline manganese dry cells, and a method for its production. Electrolytic manganese dioxide of which the apparent density is at least 4.0 g/cm3 and at most 4.3 g/cm3, and the mode particle size is at least 30 ?m and at most 100 ?m; a method for its production and its application.Type: ApplicationFiled: August 23, 2019Publication date: October 28, 2021Applicant: TOSOH CORPORATIONInventors: Naoto SUZUKI, Akinori ESHITA
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Patent number: 9103044Abstract: An object of the present invention is to provide electrolytic manganese dioxide to be used as a cathode active material for an alkali-manganese dry cell, which has a high alkali potential and is provided with a high reactivity and packing efficiency as a cathode for the cell, and which is excellent in the middle rate discharge characteristic, and electrolytic manganese dioxide excellent in the high rate discharge characteristic and the middle rate discharge characteristic, which will not cause corrosion of metal materials, and a method for its production. In the present invention, electrolytic manganese dioxide having an alkali potential of at least 280 mV and less than 310 mV, and FWHM of at least 2.2° and at most 2.9°, is used. It is preferred that of the electrolytic manganese dioxide, the (110)/(021) peak intensity ratio in the X-ray diffraction peaks is at least 0.50 and at most 0.80, and the (110) interplanar spacing is at least 4.00 ? and at most 4.06 ?.Type: GrantFiled: August 23, 2010Date of Patent: August 11, 2015Assignee: TOSOH CORPORATIONInventors: Kazumasa Suetsugu, Kenichi Takahashi, Akinori Eshita
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Publication number: 20120141361Abstract: An object of the present invention is to provide electrolytic manganese dioxide to be used as a cathode active material for an alkali-manganese dry cell, which has a high alkali potential and is provided with a high reactivity and packing efficiency as a cathode for the cell, and which is excellent in the middle rate discharge characteristic, and electrolytic manganese dioxide excellent in the high rate discharge characteristic and the middle rate discharge characteristic, which will not cause corrosion of metal materials, and a method for its production. In the present invention, electrolytic manganese dioxide having an alkali potential of at least 280 mV and less than 310 mV, and FWHM of at least 2.2° and at most 2.9°, is used. It is preferred that of the electrolytic manganese dioxide, the (110)/(021) peak intensity ratio in the X-ray diffraction peaks is at least 0.50 and at most 0.80, and the (110) interplanar spacing is at least 4.00 ? and at most 4.06 ?.Type: ApplicationFiled: August 23, 2010Publication date: June 7, 2012Applicant: TOSOH CORPORATIONInventors: Kazumasa Suetsugu, Kenichi Takahashi, Akinori Eshita
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Patent number: 5807528Abstract: A catalyst for purifying an exhaust gas to remove nitrogen oxides, carbon monoxide and hydrocarbons from an oxygen rich exhaust gas containing the same, comprising (i) a zeolite having an SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio of at least 15 and (ii) (a) silver and, optionally, (b) an alkali metal and/or an alkaline earth metal incorporated therein.Type: GrantFiled: October 13, 1993Date of Patent: September 15, 1998Assignee: Tosoh CorporationInventors: Masao Nakano, Akinori Eshita, Kazuhiko Sekizawa
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Patent number: 5514355Abstract: A catalyst, for purifying an exhaust gas, is a zeolite catalyst for removing nitrogen oxides, carbon monoxide and hydrocarbons from an oxygen-rich exhaust gas containing the nitrogen oxides, carbon monoxide and hydrocarbons, wherein the zeolite has an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of 10 or more and contains nickel, or wherein the zeolite has an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of 15 or more, and contains nickel and a rare earth metal or an alkaline earth metal.Type: GrantFiled: February 2, 1994Date of Patent: May 7, 1996Assignee: Tosoh CorporationInventors: Akinori Eshita, Senshi Kasahara
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Patent number: 5433933Abstract: A method for purifying an exhaust gas containing an excess amount of oxygen, to remove nitrogen oxides, carbon monoxide and hydrocarbons therefrom, by bringing a catalyst into contact with the exhaust gas, the catalyst comprising a zeolite ion-exchanged with (a) cobalt or (b) both cobalt and at least one metal selected from the group consisting of alkaline earth metals and rare earth metals, the zeolite being selected from the group consisting of ferrierite, ZSM-5, ZSM-11, ZSM-12 and ZSM-20, and having a silica-to-alumina molar ratio of from 15 to 1,000.Type: GrantFiled: December 30, 1993Date of Patent: July 18, 1995Assignees: Toyota Jidosha Kabushiki Kaisha, Tosoh Corporation, Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Akinori Eshita, Senshi Kasahara, Shinichi Matsumoto, Kazunobu Ishibashi, Koji Yokota, Shiroh Kondoh
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Patent number: 5382416Abstract: A catalyst for purifying an exhaust gas to remove nitrogen oxides, carbon monoxide and hydrocarbons from an oxygen-rich exhaust gas containing nitrogen oxides, carbon monoxide and hydrocarbons, comprising (i) a zeolite having an SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio of at least 15 and (ii) (a) cobalt, (b) an alkaline earth metal and (c) silver, or nickel and/or zinc, or platinum and/or manganese, or copper and/or rhodium, incorporated thereinto.Type: GrantFiled: March 28, 1994Date of Patent: January 17, 1995Assignee: Tosoh CorporationInventors: Masao Nakano, Akinori Eshita, Kazuhiko Sekizawa
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Patent number: 5223236Abstract: A method for cleaning an exhaust gas, entailing bringing the exhaust gas into contact with a crystalline aluminosilicate having a primary particle size of not less than 0.5 micron, containing one or more kinds of metal ions selected from the group of metals of Group Ib and Group VIII of the periodic table in an amount ranging from about 0.2 to 0.8 equivalent relative to one gram atom of aluminum, and having a mole ratio of SiO.sub.2 /Al.sub.2 O.sub.3 of not less than about 20.Type: GrantFiled: November 12, 1991Date of Patent: June 29, 1993Assignee: Tosoh CorporationInventors: Shunji Inoue, Senshi Kasahara, Akinori Eshita, Masao Nakano
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Patent number: 5208198Abstract: A catalyst for purifying an exhaust gas to remove nitrogen oxides, carbon monoxide and hydrocarbons from an oxygen-rich exhaust gas containing nitrogen oxides, carbon monoxide and hydrocarbons, comprising (i) a zeolite having an SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio of at least 15 and (ii) (a) cobalt, (b) an alkaline earth metal and (c) silver, or nickel and/or zinc, or platinum and/or manganese, or copper and/or rhodium, incorporated thereinto.Type: GrantFiled: December 12, 1991Date of Patent: May 4, 1993Assignee: Tosoh CorporationInventors: Masao Nakano, Akinori Eshita, Kazuhiko Sekizawa
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Patent number: 5206196Abstract: A catalyst for purifying an exhaust gas to remove nitrogen oxides, carbon monoxide and hydrocarbons from an oxygen-rich exhaust gas containing nitrogen oxides, carbon monoxide and hydrocarbons comprising (i) a zeolite having an SiO.sub.2 /Al.sub.2 O.sub.3 mole ratio of at least 15 and (ii) (a) cobalt, (b) a rare earth metal and (c) silver, or nickel and/or zinc, or platinum and/or manganese, or copper and/or rhodium, incorporated thereinto.Type: GrantFiled: December 12, 1991Date of Patent: April 27, 1993Assignee: Tosoh CorporationInventors: Masao Nakano, Akinori Eshita, Kazuhiko Sekizawa