Patents by Inventor Takeshi Kawamoto
Takeshi Kawamoto 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).
-
Patent number: 11721493Abstract: A liquid dispersion composition for solid electrolytic capacitor production, containing a conjugated conductive polymer prepared by polymerizing a monomer compound in a dispersion medium containing seed particles with protective colloid formed of a polyanion or in a dispersion medium containing a polyanion, and a compound (a) represented by a general formula (1), where R1 to R6 and k are as defined in the description; and a method for producing a solid electrolytic capacitor, including a step of adhering the composition to a porous anode body made of a valve action metal having a dielectric coating film on the surface thereof, and a step of removing the dispersion medium from the liquid dispersion composition having adhered to the porous anode body to form a solid electrolyte layerType: GrantFiled: September 18, 2018Date of Patent: August 8, 2023Assignee: SHOWA DENKO K.K.Inventors: Takeshi Kawamoto, Takashi Okubo
-
Publication number: 20220127498Abstract: Provided are an outer package material that is for electricity storage devices such as batteries and has such a sufficient anti-electrolytic solution property that the time-dependent reduction of the adhesive strength between a metal foil layer and a sealant layer by an electrolytic solution is suppressed over a long time and a composition for adhesives for giving the outer package material. In an outer package material that is for electricity storage devices and has a structure in which at least a base material layer, a first adhesive layer, a metal foil layer, a second adhesive layer, and a sealant layer are stacked in sequence, a composition containing an isocyanato group and a (meth) acryloyl group and further containing an acid-modified polyolefin (component 1), an active energy ray polymerization initiator (component 3), and a solvent (component 4) is used as a composition for adhesives to form the second adhesive layer.Type: ApplicationFiled: March 16, 2020Publication date: April 28, 2022Applicant: SHOWA DENKO K.K.Inventors: Kazuhiko OOGA, Takeshi KAWAMOTO, Kai SUZUKI, Ryunosuke YAMAMOTO
-
Patent number: 11183340Abstract: A method of producing a solid electrolytic capacitor, including a step of forming a dielectric film on the surface of a valve-acting metal having fine pores and a step of forming a solid electrolyte layer containing a conductive polymer on the dielectric film; wherein the solid electrolyte layer containing the conductive polymer is formed without using an oxidizing agent by: (i) a method of polymerizing at least one of the compounds (A1) represented by formula (1) disclosed herein in the presence of a compound (B) having a sulfo group; (ii) a method of copolymerizing at least one compound (A2) represented by formula (2) disclosed herein; and (iii) a method of polymerizing at least one of the compounds (A1) and (A2).Type: GrantFiled: September 29, 2017Date of Patent: November 23, 2021Assignee: SHOWA DENKO K.K.Inventors: Takeshi Kawamoto, Yuka Niimi, Toshiya Kawasaki, Yoshinori Shibuya, Takeshi Kohama
-
Patent number: 11136432Abstract: The present invention relates to (i) a method of producing a conductive polymer, comprising polymerizing at least one of compounds (A1) represented by the formula (1) disclosed in the specification in the presence of a compound (B) having sulfo group; (ii) a method of producing a conductive polymer, comprising polymerizing at least one compound selected from a group consisting of at least one compound (A2) represented by the formula (2); and (iii) a method of producing a conductive polymer, comprising copolymerizing at least one compound (A1) and at least one compound selected from a group consisting of at least one compound (A2). The method of the present invention is a method for producing a one-liquid type conductive polymer in which it is possible to easily adjust the solvent affinity, the solubility, and other such aspects of performance according to the purpose.Type: GrantFiled: September 29, 2017Date of Patent: October 5, 2021Assignee: SHOWA DENKO K.K.Inventors: Takeshi Kawamoto, Yuka Niimi
-
Patent number: 11104659Abstract: The present invention relates to a fused heteropolycyclic compound represented by formulae (1) and (2), a method for producing the same, and a method for producing a conductive polymer represented by formulae (3) and (4) in which at least one compound represented by formula (2) is used (the symbols in the formulae are as described in the description). The method of the present invention is a method for producing a sulfo-group-containing polyisothianaphthene capable of reducing the use amount of an oxidant or capable of being polymerized without the use of any oxidant.Type: GrantFiled: September 29, 2017Date of Patent: August 31, 2021Assignee: SHOWA DENKO K.K.Inventors: Takeshi Kawamoto, Yuka Niimi
-
Publication number: 20200402721Abstract: A liquid dispersion composition for solid electrolytic capacitor production, containing a conjugated conductive polymer prepared by polymerizing a monomer compound in a dispersion medium containing seed particles with protective colloid formed of a polyanion or in a dispersion medium containing a polyanion, and a compound (a) represented by a general formula (1), where R1 to R6 and k are as defined in the description; and a method for producing a solid electrolytic capacitor, including a step of adhering the composition to a porous anode body made of a valve action metal having a dielectric coating film on the surface thereof, and a step of removing the dispersion medium from the liquid dispersion composition having adhered to the porous anode body to form a solid electrolyte layerType: ApplicationFiled: September 18, 2018Publication date: December 24, 2020Applicant: SHOWA DENKO K.K.Inventors: Takeshi KAWAMOTO, Takeshi OKUBO
-
Patent number: 10680666Abstract: A timing estimation device according to the present invention includes a received signal memory that outputs a plurality of sample groups each of which is a first number of samples extracted at symbol rate intervals from an oversampled received signal containing a known sequence, with shifting their leading positions by one sample from each other, a reliability calculation unit that calculates a channel impulse response for each of the sample groups, based on the sample group, generates a replica of the received signal using the channel impulse response and the known sequence, and calculates a reliability value based on the sample group, the replica, and the channel impulse response, and a timing estimation unit that estimates a preceding wave arrival timing and a delayed wave arrival timing, based on the reliability value.Type: GrantFiled: February 27, 2017Date of Patent: June 9, 2020Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takeshi Kawamoto, Takehiko Nishide, Koji Tomitsuka, Masatsugu Higashinaka
-
Publication number: 20200090874Abstract: A method of producing a solid electrolytic capacitor, including a step of forming a dielectric film on the surface of a valve-acting metal having fine pores and a step of forming a solid electrolyte layer containing a conductive polymer on the dielectric film; wherein the solid electrolyte layer containing the conductive polymer is formed without using an oxidizing agent by: (i) a method of polymerizing at least one of the compounds (A1) represented by formula (1) disclosed herein in the presence of a compound (B) having a sulfo group; (ii) a method of copolymerizing at least one compound (A2) represented by formula (2) disclosed herein; and (iii) a method of polymerizing at least one of the compounds (A1) and (A2).Type: ApplicationFiled: September 29, 2017Publication date: March 19, 2020Applicant: SHOWA DENKO K.K.Inventors: Takeshi KAWAMOTO, Yuka NIIMI, Toshiya KAWASAKI, Yoshinori SHIBUYA, Takeshi KOHAMA
-
Publication number: 20190393910Abstract: A timing estimation device according to the present invention includes a received signal memory that outputs a plurality of sample groups each of which is a first number of samples extracted at symbol rate intervals from an oversampled received signal containing a known sequence, with shifting their leading positions by one sample from each other, a reliability calculation unit that calculates a channel impulse response for each of the sample groups, based on the sample group, generates a replica of the received signal using the channel impulse response and the known sequence, and calculates a reliability value based on the sample group, the replica, and the channel impulse response, and a timing estimation unit that estimates a preceding wave arrival timing and a delayed wave arrival timing, based on the reliability value.Type: ApplicationFiled: February 27, 2017Publication date: December 26, 2019Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takeshi Kawamoto, Takehiko Nishide, Koji Tomitsuka, Masatsugu Higashinaka
-
Publication number: 20190345287Abstract: The present invention relates to (i) a method of producing a conductive polymer, comprising polymerizing at least one of compounds (A1) represented by the formula (1) disclosed in the specification in the presence of a compound (B) having sulfo group; (ii) a method of producing a conductive polymer, comprising polymerizing at least one compound selected from a group consisting of at least one compound (A2) represented by the formula (2); and (iii) a method of producing a conductive polymer, comprising copolymerizing at least one compound (A1) and at least one compound selected from a group consisting of at least one compound (A2). The method of the present invention is a method for producing a one-liquid type conductive polymer in which it is possible to easily adjust the solvent affinity, the solubility, and other such aspects of performance according to the purpose.Type: ApplicationFiled: September 29, 2017Publication date: November 14, 2019Applicant: SHOWA DENKO K.K.Inventors: Takeshi KAWAMOTO, Yuka NIIMI
-
Publication number: 20190337919Abstract: The present invention relates to a fused heteropolycyclic compound represented by formulae (1) and (2), a method for producing the same, and a method for producing a conductive polymer represented by formulae (3) and (4) in which at least one compound represented by formula (2) is used (the symbols in the formulae are as described in the description). The method of the present invention is a method for producing a sulfo-group-containing polyisothianaphthene capable of reducing the use amount of an oxidant or capable of being polymerized without the use of any oxidant.Type: ApplicationFiled: September 29, 2017Publication date: November 7, 2019Applicant: SHOWA DENKO K.K.Inventors: Takeshi KAWAMOTO, Yuka NIIMI
-
Publication number: 20190144721Abstract: A pressure-sensitive adhesive composition contains an acrylic resin (A) and an isocyanatecrosslinking agent (B), in which a content of the isocyanate crosslinking agent (B) with respect to 100 parts by mass of the acrylic resin (A) is 0.05 to 5 parts by mass, and the acrylic resin (A) contains a monomer (a1) having a hydroxyl group in an amount of 20% by mass or more, and N-vinylacetamide (a2) in an amount of 0.5% to 5% by mass as a monomer unit.Type: ApplicationFiled: June 5, 2017Publication date: May 16, 2019Applicant: SHOWA DENKO K.K.Inventors: Naoyuki TANAKA, Atsushi SUGAWARA, Takeshi KAWAMOTO
-
Publication number: 20160126592Abstract: A nonaqueous electrolyte solution for a secondary battery, including an electrolyte, a solvent and an additive, and a nonaqueous electrolyte secondary battery including the nonaqueous electrolyte solution. The additive contains a compound represented by the following formula (I): wherein n represents an integer of 1 to 4, in the case of n=1, R1 represents a halogen atom or the like, in the case of n=2, R1 represents an alkaline earth metal atom or the like, in the case of n=3, R1 represents a trivalent transition metal atom or the like, in the case of n=4, R1 represents a tetravalent transition metal atom or the like, and R2 represents an alkylene group of 1 to 6 carbon atoms or an alkenylene group of 2 to 6 carbon atoms.Type: ApplicationFiled: February 3, 2014Publication date: May 5, 2016Applicant: SHOWA DENKO K.K.Inventors: Shunsuke SAITO, Yusuke AOKI, Takeshi KAWAMOTO, Kiyoshi NOMURA, Shuichi NAIJO
-
Patent number: 9267555Abstract: A lock-up device includes a clutch part and a damper mechanism. The clutch part includes a clutch input member, a clutch output member, a drive plate, a driven plate, a second flange and a piston. The second flange is mounted between a front cover and an inner peripheral part of a turbine to be axially immovable with respect to the front cover, and forms a lock-up oil chamber. The piston is mounted between the front cover and the second flange, forms a lock-up oil chamber together with the second flange therebetween, and is configured to be moved toward the front cover by an operating oil to be supplied to the lock-up oil chamber.Type: GrantFiled: November 5, 2012Date of Patent: February 23, 2016Assignee: EXEDY CorporationInventors: Hiroyuki Ushio, Takeshi Kawamoto, Ken Mototsune, Shinji Fujimoto
-
Patent number: 9234897Abstract: Disclosed is a method for distinguishing a mesenchymal stem cell comprising, using at least one gene selected from the genes having the nucleotide sequences indicated by the accession numbers shown in Table 1 as a distinguish marker, detecting the difference in expression of the distinguish marker between a mesenchymal stem cell and a connective tissue cell to distinguish the mesenchymal stem cell from the connective tissue cell. This method enables to distinguish an undifferentiated mesenchymal stem cell from other connective tissue cell such as fibroblasts, osteoblasts, chondrocytes and adipose cells with good accuracy. A mesenchymal stem cell given by this method or a composition comprising the mesenchymal stem sell can be used as a therapeutic for use in the regenerative medicine.Type: GrantFiled: March 30, 2006Date of Patent: January 12, 2016Assignee: TWO CELLS CO., LTDInventors: Yukio Kato, Takeshi Kawamoto, Koichiro Tsuji, Akira Igarashi, Masakazu Shimizu
-
Patent number: 9200685Abstract: A lock-up device includes a clutch part, an input plate, an output plate, torsion springs and an input plate support member. The clutch part is disposed between a front cover and a turbine, and is configured to allow or block transmission of a torque. The input plate is coupled to a clutch output member of the clutch part. The output plate is fixed to a turbine shell. The torsion springs are disposed between the input plate and the output plate, and absorb and attenuate a torsional vibration. The input plate support member is fixed to a front cover side of a turbine shell and positions the input plate in a radial direction and an axial direction.Type: GrantFiled: November 5, 2012Date of Patent: December 1, 2015Assignee: EXEDY CorporationInventors: Hiroyuki Ushio, Takeshi Kawamoto, Ken Mototsune, Shinji Fujimoto
-
Publication number: 20150128582Abstract: A stator support structure supports a stator of a torque converter on a stationary shaft, and includes an inner race and an annular one-way plate. The inner race is coupled to the stationary shaft to be non-rotatable relative thereto, and has a plurality of protrusions on the outer peripheral surface thereof. The annular one-way plate is mounted to the inner peripheral surface of the stator to be non-rotatable relative thereto, and has a plurality of pawls. The pawls are configured to prevent relative rotation between the stator and the inner race by making contact with first end surfaces formed as one rotation-directional end surfaces of the plural protrusions when the stator is rotated in a first direction. The pawls are configured to allow relative rotation between the stator and the inner race by elastically deforming in a radial direction to climb over the protrusions when the stator is rotated in a second direction.Type: ApplicationFiled: August 5, 2013Publication date: May 14, 2015Inventors: Takeshi Kawamoto, Ken Mototsune
-
Patent number: 8967349Abstract: A lock-up device includes a clutch part and a damper mechanism. The damper mechanism includes an input plate, an output plate, a plurality of torsion springs, an intermediate member and a restriction member. The intermediate member is configured to cause at least two of the torsion springs to act in series. The restriction member is fixed to a clutch output member of the clutch part, while being disposed such that a part of the intermediate member is interposed between the input plate and the restriction member in an axial direction. The intermediate member is restricted from moving in a radial direction by the clutch output member, while being restricted from moving in the axial direction by the input plate and the restriction member.Type: GrantFiled: November 5, 2012Date of Patent: March 3, 2015Assignee: EXEDY CorporationInventors: Hiroyuki Ushio, Takeshi Kawamoto, Ken Mototsune, Shinji Fujimoto
-
Patent number: 8925700Abstract: Disclosed is a torque converter (1) which comprises: a casing (10) coupled to an output shaft of an engine; a torus (T) defined by a pump (20), a turbine (30) and a stator (40) each disposed within the casing (10); a lockup clutch (60) adapted to directly couple the turbine (30) and the casing (10); and a lockup damper (70) adapted to absorb shock during engagement of the lockup clutch (60). The turbine (30) has an outer peripheral portion (31a) bulging toward the engine to define a part of the torus (T), an inner peripheral portion (31c) located on the side of the engine with respect to a one-way clutch (50) supporting the stator (40), and an intermediate portion (31b) formed to be concaved toward a side opposite to the engine, in a radial position between the outer peripheral portion (31a) and the inner peripheral portion (31c). A part (75) of the lockup damper (70) is disposed on the side of the engine with respect to the intermediate portion (31b) and in a position axially overlapping with the torus (T).Type: GrantFiled: July 27, 2011Date of Patent: January 6, 2015Assignees: Exedy Corporation, Mazda Motor CorporationInventors: Takeshi Kawamoto, Tokimori Saka, Norio Iwashita, Takashi Ishiyama, Hidetoshi Maeta
-
Publication number: 20140326563Abstract: A lock-up device includes a clutch part, an input plate, an output plate, torsion springs and an input plate support member. The clutch part is disposed between a front cover and a turbine, and is configured to allow or block transmission of a torque. The input plate is coupled to a clutch output member of the clutch part. The output plate is fixed to a turbine shell. The torsion springs are disposed between the input plate and the output plate, and absorb and attenuate a torsional vibration. The input plate support member is fixed to a front cover side of a turbine shell and positions the input plate in a radial direction and an axial direction.Type: ApplicationFiled: November 5, 2012Publication date: November 6, 2014Applicant: Exedy CorporationInventors: Hiroyuki Ushio, Takeshi Kawamoto, Ken Mototsune, Shinji Fujimoto