Patents by Inventor Koji Kawanishi
Koji Kawanishi 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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Publication number: 20240133055Abstract: An electrolysis cell for chlor-alkali electrolysis, including an anode chamber for accommodating an anode and for accommodating an electrolytic solution, wherein the anode chamber includes a circulation structure for improving circulation of the electrolytic solution and at least one baffle plate for improving horizontal homogeneity of the electrolytic solution.Type: ApplicationFiled: February 18, 2022Publication date: April 25, 2024Applicant: THYSSENKRUPP NUCERA AG & CO. KGAAInventors: Koji KAWANISHI, Takehiro OIWA, Masaki WATANABE, Peter TOROS, Fulvio FEDERICO
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Publication number: 20240043980Abstract: A plated steel material having a plating layer having an average chemical composition containing, in mass %, Zn: more than 50.00%, Al: more than 15.0% and less than 30.0%, Mg: more than 5.0% and less than 15.0%, and Si: 0.25% or more and less than 3.50%, and impurities, and wherein a total amount (?A) of at least one selected from the group consisting of Sn, Bi and In is less than 1.00%, a total amount (?B) of at least one selected from the group consisting of Ca, Y, La, Ce and Sr is 0.02% or more and less than 0.60%, 2.0?SMg/Si<20.0 (Formula 1), 3.0?Si/?B<24.0 (Formula 2), and 26.0?(Si/?B)×(Mg/Si)<375.0 (Formula 3) are satisfied, and in an X-ray diffraction pattern of the surface of the plating layer, a diffraction intensity ratio R1 defined by R1={I(16.18°)+I(32.69°)}/I(27.0°) (Formula 4) satisfies 2.5<R1 (Formula 5) is used.Type: ApplicationFiled: November 30, 2021Publication date: February 8, 2024Applicant: NIPPON STEEL CORPORATIONInventors: Kohei TOKUDA, Mamoru SAITO, Takuya MITSUNOBU, Tetsuya TOBA, Yasuto GOTO, Atsushi MORISHITA, Yasuaki KAWAMURA, Fumiaki NAKAMURA, Koji KAWANISHI
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Patent number: 11781200Abstract: A plated steel including a plated layer on a surface of a steel, in which Expression 1 of 0?Cr+Ti+Ni+Co+V+Nb+Cu+Mn?0.25 and Expression 2 of 0?Sr+Sb+Pb+B+Li+Zr+Mo+W+Ag+P?0.50 are satisfied, and Expression 3 of I(MgZn2 (41.31°))/I?(MgZn2)?0.265 and Expression 6 of 0.150?{I(MgZn2 (20.79°))+I(MgZn2 (42.24°))}/I?(MgZn2) are further satisfied in an X-ray diffraction pattern of a surface of the plated layer measured using Cu-K? rays under a condition that an X-ray output is 40 kV and 150 mA.Type: GrantFiled: July 9, 2021Date of Patent: October 10, 2023Assignee: NIPPON STEEL CORPORATIONInventors: Kohei Tokuda, Takuya Mitsunobu, Mamoru Saito, Yuto Fukuda, Yasuto Goto, Hidetoshi Shindo, Fumiaki Nakamura, Koji Kawanishi, Ryohei Mimura
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Publication number: 20230193425Abstract: A plated steel including a plated layer on a surface of a steel, in which Expression 1 of 0?Cr+Ti+Ni+Co+V+Nb+Cu+Mn 0.25 and Expression 2 of 0?Sr+Sb+Pb+B+Li+Zr+Mo+W+Ag+P?0.50 are satisfied, and Expression 3 of I(MgZn2 (41.31°))/I?(MgZn2)?0.265 and Expression 6 of 0.150?{I(MgZn2 (20.79°))+I(MgZn2 (42.24°))}/I?(MgZn2) are further satisfied in an X-ray diffraction pattern of a surface of the plated layer measured using Cu-K? rays under a condition that an X-ray output is 40 kV and 150 mA.Type: ApplicationFiled: July 9, 2021Publication date: June 22, 2023Applicant: NIPPON STEEL CORPORATIONInventors: Kohei TOKUDA, Takuya MITSUNOBU, Mamoru SAITO, Yuto FUKUDA, Yasuto GOTO, Hidetoshi SHINDO, Fumiaki NAKAMURA, Koji KAWANISHI, Ryohei MIMURA
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Patent number: 11643739Abstract: Provided are an anode for an ion exchange membrane electrolyzer which enables an aqueous solution of an alkali metal chloride to be electrolyzed at a lower voltage than a conventional anode and allows the concentration of an impurity gas included in an anode gas to be reduced and an ion exchange membrane electrolyzer using the same. The anode is an anode for an ion exchange membrane electrolyzer to be used in an ion exchange membrane electrolyzer that is separated by an ion exchange membrane into an anode chamber and a cathode chamber. The anode for an ion exchange membrane electrolyzer comprises at least one perforated flat metal plate 1 (expanded metal 1) and the thickness of the perforated flat metal plate 1 (expanded metal 1) ranges from 0.1 to 0.5 mm and the ratio of the short way SW to the long way LW (SW/LW) ranges from 0.45 to 0.55. The short way SW is preferably not more than 3.0 mm.Type: GrantFiled: January 15, 2015Date of Patent: May 9, 2023Assignees: TOSOH CORPORATION, THYSSENKRUPP NUCERA JAPAN LTD.Inventors: Terumi Hashimoto, Koji Kawanishi, Fumio Sadahiro, Shota Shinohara, Sachio Kaneko
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Publication number: 20220341049Abstract: To provide an electrolysis electrode having a more preferable shape in electrolyzing pure water, an alkali aqueous solution, or an aqueous solution of an alkali metal chloride at a lower voltage than ever before, and an electrolyzer using the same. An electrolysis electrode or the like including: a metal perforated plate having a value of Factor V of 40 or more represented by the formula: Factor V=Rs×Rc×F/100000, in which Rs is a planar direction surface area per unit area 1 dm2 [cm2/dm2], Rc is a thickness direction surface area per unit area 1 dm2 [cm2/dm2], and F is the number of mesh apertures per unit area 1 dm2 (fine degree) [number/dm2].Type: ApplicationFiled: June 12, 2020Publication date: October 27, 2022Applicant: THYSSENKRUPP UHDE CHLORINE ENGINEERS GMBHInventors: Terumi HASHIMOTO, Koji KAWANISHI, Takehiro OIWA
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Patent number: 11267728Abstract: Provided is an alkaline water electrolyzer in which leakage of aqueous alkali solutions is prevented. The alkaline water electrolyzer 10 includes an anode chamber frame 11 defining an anode chamber 12; a cathode chamber frame 17 defining a cathode chamber 18; a porous diaphragm 16 disposed between the anode and cathode chamber frames 11 and 17 and partitioning the anode and cathode chambers 12 and 18; an anode gasket 15 disposed on the anode chamber frame 11; and a cathode gasket 21 disposed on the cathode chamber frame 17, wherein when the anode and cathode chamber frames 11 and 17 are fastened, the porous diaphragm 16 is held between the anode and cathode chamber frames 11 and 17 via the anode and cathode gaskets 15 and 21 and the anode and cathode gaskets 15 and 21 are in contact with each other around the peripheral edge of the porous diaphragm 16 by compressing the anode and cathode gaskets 15 and 21.Type: GrantFiled: March 28, 2018Date of Patent: March 8, 2022Assignees: THYSSENKRUPP UHDE CHLORINE ENGINEERS (JAPAN) LTD., KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Takehiro Oiwa, Koji Kawanishi, Kenichiro Igashira, Yuji Kamei, Nanase Ishikawa, Akiyoshi Manabe
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Patent number: 10988848Abstract: An electrolytic cell that prevents, or at least minimizes, damage to a membrane and reduces electrolytic voltage may include an elastic member attached to an electrolytic partition wall within an anode chamber and/or a cathode chamber. The elastic member comprises a spring retaining part and a bonding part that is bonded to the electrolytic partition wall, parallel first support parts extending from the bonding part away from the electrolytic partition wall, a second support part connecting the first support parts, and two parallel spring rows. Each spring row may include first flat spring-like bodies, which originate from the first support part and extend toward the opposite direction of the electrolytic partition wall, and second flat spring-like bodies, which originate from the second support part and extend toward the opposite direction of the electrolytic partition wall.Type: GrantFiled: June 13, 2017Date of Patent: April 27, 2021Assignee: THYSSENKRUPP UHDE CHLORINE ENGINEERS GMBHInventors: Koji Kawanishi, Takehiro Oiwa, Shinichiro Yamamoto, Masaki Watanabe
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Publication number: 20200039848Abstract: Provided is an alkaline water electrolyzer in which leakage of aqueous alkali solutions is prevented. The alkaline water electrolyzer 10 includes an anode chamber frame 11 defining an anode chamber 12; a cathode chamber frame 17 defining a cathode chamber 18; a porous diaphragm 16 disposed between the anode and cathode chamber frames 11 and 17 and partitioning the anode and cathode chambers 12 and 18; an anode gasket 15 disposed on the anode chamber frame 11; and a cathode gasket 21 disposed on the cathode chamber frame 17, wherein when the anode and cathode chamber frames 11 and 17 are fastened, the porous diaphragm 16 is held between the anode and cathode chamber frames 11 and 17 via the anode and cathode gaskets 15 and 21 and the anode and cathode gaskets 15 and 21 are in contact with each other around the peripheral edge of the porous diaphragm 16 by compressing the anode and cathode gaskets 15 and 21.Type: ApplicationFiled: March 28, 2018Publication date: February 6, 2020Applicants: thyssenkrupp Uhde Chlorine Engineers (Japan) Ltd., KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Takehiro OIWA, Koji KAWANISHI, Kenichiro IGASHIRA, Yuji KAMEI, Nanase ISHIKAWA, Akiyoshi MANABE
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Publication number: 20190226100Abstract: An electrolytic cell that prevents, or at least minimizes, damage to a membrane and reduces electrolytic voltage may include an elastic member attached to an electrolytic partition wall within an anode chamber and/or a cathode chamber. The elastic member comprises a spring retaining part and a bonding part that is bonded to the electrolytic partition wall, parallel first support parts extending from the bonding part away from the electrolytic partition wall, a second support part connecting the first support parts, and two parallel spring rows. Each spring row may include first flat spring-like bodies, which originate from the first support part and extend toward the opposite direction of the electrolytic partition wall, and second flat spring-like bodies, which originate from the second support part and extend toward the opposite direction of the electrolytic partition wall.Type: ApplicationFiled: June 13, 2017Publication date: July 25, 2019Applicant: THYSSENKRUPP UHDE CHLORINE ENGINEERS GMBHInventors: Koji KAWANISHI, Takehiro OIWA, Shinichiro YAMAMOTO, Masaki Watanabe
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Patent number: 10344386Abstract: Provided are an elastic cushion member and an ion exchange membrane electrolyzer using the same, which elastic cushion member can be installed even in an ion exchange membrane electrolyzer having such a small gap between an electrode and an electrode current collecting plate that a conventional elastic cushion member cannot be arranged therein. An elastic cushion member (10) has a pair of corrosion-resistant metal thin plates (11) arranged at a distance in parallel fashion and a fixing member (12) which fixes the pair of corrosion-resistant metal thin plates (11) and comprises a metal elastic body (13) wound between the pair of corrosion-resistant metal thin plates (11). The fixing member (12) is attached to the pair of corrosion-resistant metal thin plates (11) in a manner that enables detachment of the fixing member therefrom. The metal elastic body (13) is preferred to be a metal coil body.Type: GrantFiled: May 30, 2013Date of Patent: July 9, 2019Assignee: thyssenkrupp Uhde Chlorine Engineers (Japan) Ltd.Inventors: Yoshiyuki Kodama, Koji Kawanishi
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Publication number: 20160333488Abstract: Provided are an anode for an ion exchange membrane electrolyzer which enables an aqueous solution of an alkali metal chloride to be electrolyzed at a lower voltage than a conventional anode and allows the concentration of an impurity gas included in an anode gas to be reduced and an ion exchange membrane electrolyzer using the same. The anode is an anode for an ion exchange membrane electrolyzer to be used in an ion exchange membrane electrolyzer that is separated by an ion exchange membrane into an anode chamber and a cathode chamber. The anode for an ion exchange membrane electrolyzer comprises at least one perforated flat metal plate 1 (expanded metal 1) and the thickness of the perforated flat metal plate 1 (expanded metal 1) ranges from 0.1 to 0.5 mm and the ratio of the short way SW to the long way LW (SW/LW) ranges from 0.45 to 0.55. The short way SW is preferably not more than 3.0 mm.Type: ApplicationFiled: January 15, 2015Publication date: November 17, 2016Applicants: THYSSENKRUPP UHDE CHLORINE ENGINEERS (JAPAN) LTD., TOSOH CORPORATIONInventors: Terumi HASHIMOTO, Koji KAWANISHI, Fumio SADAHIRO, Shota SHINOHARA, Sachio KANEKO
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Publication number: 20150122641Abstract: Provided are an elastic cushion member and an ion exchange membrane electrolyzer using the same, which elastic cushion member can be installed even in an ion exchange membrane electrolyzer having such a small gap between an electrode and an electrode current collecting plate that a conventional elastic cushion member cannot be arranged therein. An elastic cushion member (10) has a pair of corrosion-resistant metal thin plates (11) arranged at a distance in parallel fashion and a fixing member (12) which fixes the pair of corrosion-resistant metal thin plates (11) and comprises a metal elastic body (13) wound between the pair of corrosion-resistant metal thin plates (11). The fixing member (12) is attached to the pair of corrosion-resistant metal thin plates (11) in a manner that enables detachment of the fixing member therefrom. The metal elastic body (13) is preferred to be a metal coil body.Type: ApplicationFiled: May 30, 2013Publication date: May 7, 2015Applicant: CHLORINE ENGINEERS CORP., LTD.Inventors: Yoshiyuki Kodama, Koji Kawanishi
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Patent number: 7087248Abstract: A medical component comprising a human parathyroid hormone peptide or its derivative, and acetic acid contained at a concentration less than its chemical equivalent with respect to the human parathyroid hormone peptide or to its derivative. Since in the medical component acetic acid, which is present as a salt of or attached to the peptide or its derivative, has been reduced to an amount less than chemical equivalent with respect to the human parathyroid hormone peptide or its derivative, a medical component, which is highly stable and will ensure an excellent use feeling when introduced into a pharmaceutical composition, is obtained.Type: GrantFiled: June 29, 2001Date of Patent: August 8, 2006Assignee: Daiichi Asubio Pharma Co., Ltd.Inventors: Yoshiharu Minamitake, Tetsu Ono, Koji Kawanishi, Yuji Suzuki
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Publication number: 20050107292Abstract: A medical component comprising a human parathyroid hormone peptide or its derivative, and acetic acid contained at a concentration less than its chemical equivalent with respect to the human parathyroid hormone peptide or to its derivative. Since in the medical component acetic acid, which is present as a salt of or attached to the peptide or its derivative, has been reduced to an amount less than chemical equivalent with respect to the human parathyroid hormone peptide or its derivative, a medical component, which is highly stable and will ensure an excellent use feeling when introduced into a pharmaceutical composition, is obtained.Type: ApplicationFiled: June 29, 2001Publication date: May 19, 2005Inventors: Yoshiharu Minamitake, Tetsu Ono, Koji Kawanishi, Yuji Suzuki
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Patent number: 6177745Abstract: In a permanent magnet rotor type electric motor in which a permanent magnet is embedded in a rotor, a permanent magnet used for a magnetic pole of one polarity in a rotor core and another permanent magnet used for a magnetic pole of the other polarity have different configurations and materials from each other, so that the selecting range for the magnetic flux density and the reluctance torque of the permanent magnet rotor type electric motor can be increased.Type: GrantFiled: September 22, 1998Date of Patent: January 23, 2001Assignee: Fujitsu General LimitedInventors: Kenji Narita, Takashi Suzuki, Hiroyuki Okudera, Yuji Kawai, Yuji Souma, Koji Kawanishi, Yoshichika Fukuda
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Patent number: 6025667Abstract: In an electric motor, such as a DC brushless motor or the like, having a permanent magnet in a rotor, each magnetic pole is formed of three permanent magnets, and the permanent magnets are made of at least two kinds of magnetic materials represented by ferrite magnet and rare-earth magnet. Thus, in a permanent magnet rotor type electric motor, a reluctance torque and a magnetic flux density can be selectively established, and cost is reasonable, corresponding to the quality.Type: GrantFiled: September 24, 1998Date of Patent: February 15, 2000Assignee: Fujitsu General LimitedInventors: Kenji Narita, Takashi Suzuki, Hiroyuki Okudera, Yuji Kawai, Yuji Souma, Koji Kawanishi, Yoshichika Fukuda
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Patent number: 5990593Abstract: A permanent magnet rotor type electric motor is formed of a stator core generating a rotation magnetic field, and a rotor core rotationally situated inside the stator core. The rotor core includes a first core member for generating a magnet torque, permanent magnets embedded in the first core member for forming magnetic poles, and a second core member for generating a reluctance torque without having a permanent magnet therein. The second core member is coaxially united with the first core member so that the rotor core is divided into the first core member for generating the magnet torque and the second core member for generating the reluctance torque.Type: GrantFiled: October 27, 1998Date of Patent: November 23, 1999Assignee: Fujitsu General LimitedInventors: Kenji Narita, Takashi Suzuki, Hiroyuki Okudera, Yuji Kawai, Yuji Souma, Koji Kawanishi, Yoshichika Fukuda
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Patent number: 5962944Abstract: In a permanent magnet rotor type electric motor having a stator core generating a rotation magnetic field and provided therein with a rotor core in which each magnetic pole is formed by a permanent magnet, the rotor core is fabricated by coaxially and unitedly joining a first core member and a second core member, in which a first permanent magnet of a predetermined cross-section shape is embedded per magnetic pole in the first core member, and a second permanent magnet which is made of a different material and has a different cross-section shape from those of the first permanent magnet is embedded per magnetic pole in the second core member, thereby achieving the permanent magnet rotor type electric motor having the performance and size appropriate for the intended use.Type: GrantFiled: October 20, 1998Date of Patent: October 5, 1999Assignee: Fujitsu General LimitedInventors: Kenji Narita, Takashi Suzuki, Hiroyuki Okudera, Yuji Kawai, Yuji Souma, Koji Kawanishi, Yoshichika Fukuda