Patents by Inventor Satoshi Takase
Satoshi Takase 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: 8557472Abstract: There are provided a novel proton-conducting polymer membrane that shows good workability in a fuel cell assembling process and good proton conductivity and durability even under high-temperature, non-humidified conditions, a method for production thereof, and a fuel cell therewith. The proton-conducting polymer membrane includes: a polymer membrane containing a polybenzimidazole compound having a sulfonic acid group and/or a phosphonic acid group; and vinylphosphonic acid contained in the polymer membrane. The fuel cell uses the proton-conducting polymer membrane. The polybenzimidazole compound preferably includes a sulfonic and/or phosphonic acid group-containing component represented by Structural Formula (1): wherein n represents an integer of 1 to 4, R1 represents a tetravalent aromatic linking unit capable of forming an imidazole ring, R2 represents a bivalent aromatic linking unit, and Z represents a sulfonic acid group and/or a phosphonic acid group.Type: GrantFiled: May 31, 2006Date of Patent: October 15, 2013Assignee: Toyo Boseki Kabushiki KaishaInventors: Fusaki Fujibayashi, Yoshimitsu Sakaguchi, Satoshi Takase
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Patent number: 7649025Abstract: A composite ion exchange membrane having a high swelling resistance and being superior in mechanical strength and ion conductivity can be provided by means of an composite ion exchange membrane including an ion exchange resin composition and a support membrane having a continuous pore penetrating the support membrane, wherein the support membrane is one which accepts the ion exchange resin composition within the pore, and wherein the ion exchange resin composition is one which contains an ion exchange resin containing, as a main component, an aromatic polyether and/or its derivative, the aromatic polyether being obtained by mixing a compound having a specific structure, an aromatic dihalogenated compound and a bisphenol compound with a carbonate and/or a bicarbonate of an alkali metal and polymerizing the mixture in an organic solvent.Type: GrantFiled: October 16, 2003Date of Patent: January 19, 2010Assignee: Toyo Boseki Kabushiki KaishaInventors: Kota Kitamura, Yoshimitsu Sakaguchi, Shigenori Nagahara, Shiro Hamamoto, Naohiko Takimoto, Hideki Sugihara, Satoshi Takase, Tooru Kitagawa, Miyako Noshiro
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Publication number: 20090136818Abstract: There are provided a novel proton-conducting polymer membrane that shows good workability in a fuel cell assembling process and good proton conductivity and durability even under high-temperature, non-humidified conditions, a method for production thereof, and a fuel cell therewith. The proton-conducting polymer membrane includes: a polymer membrane containing a polybenzimidazole compound having a sulfonic acid group and/or a phosphonic acid group; and vinylphosphonic acid contained in the polymer membrane. The fuel cell uses the proton-conducting polymer membrane. The polybenzimidazole compound preferably includes a sulfonic and/or phosphonic acid group-containing component represented by Structural Formula (1): wherein n represents an integer of 1 to 4, R1 represents a tetravalent aromatic linking unit capable of forming an imidazole ring, R2 represents a bivalent aromatic linking unit, and Z represents a sulfonic acid group and/or a phosphonic acid group.Type: ApplicationFiled: May 31, 2006Publication date: May 28, 2009Inventors: Fusaki Fujibayashi, Yoshimitsu Sakaguchi, Satoshi Takase
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Patent number: 7537852Abstract: The present invention provides a composite ion exchange membrane which has high mechanical strength and is suitable for use as a solid polymer electrolyte membrane excellent in ionic conductivity and a method for its production. The invention is achieved by a composite ion exchange membrane including a composite layer comprising a support membrane with continuous voids formed of polybenzazole polymer, the support membrane being impregnated with ion exchange resin, and surface layers formed of ion exchange resin free of support membranes, the surface layers being formed on both surfaces of the composite layer so as to sandwich the composite layer therebetween.Type: GrantFiled: February 3, 2003Date of Patent: May 26, 2009Assignee: Toyo Boseki Kabushiki KaishaInventors: Shiro Hamamoto, Satoshi Takase, Yoshimitsu Sakaguchi, Shigenori Nagahara, Kota Kitamura, Junko Nakao, Kousuke Sasai
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Patent number: 7457634Abstract: The communication state information providing system comprises a cellular phone of an information provider, and an information providing device having an information receiving unit for receiving, via a wireless LAN, the communication state information transmitted from the cellular phone, a communication state information storage unit for storing the communication state information received by the information receiving unit associated with the phone number specifying the cellular phone, and an information transmitting unit for transmitting the communication state information stored in the communication state information storage unit to a destination associated with the phone number of the cellular phone.Type: GrantFiled: July 11, 2005Date of Patent: November 25, 2008Assignees: NTT DoCoMo, Inc., NEC CorporationInventors: Yasuo Morinaga, Masaharu Nakatsuchi, Toshio Kaneda, Satoshi Takase, Nobuaki Sasao, Masashi Itoh
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Publication number: 20080063917Abstract: Disclosed is an electrolyte membrane-electrode assembly wherein a hydrocarbon-based solid polymer electrolyte membrane is sandwiched between a pair of electrodes. In this electrolyte membrane-electrode assembly, the glass transition temperature of the electrolyte membrane in a dry state is not less than 160° C. and the maximum moisture content of the electrolyte membrane is 10-120%. By using such a hydrocarbon-based solid polymer electrolyte membrane, there can be obtained an electrolyte membrane-electrode assembly which is excellent in reliability and durability. Also disclosed are a fuel cell using such an electrolyte membrane-electrode assembly and a method for producing such an electrolyte membrane-electrode assembly.Type: ApplicationFiled: July 29, 2004Publication date: March 13, 2008Inventors: Masahiro Yamashita, Yoshimitsu Sakaguchi, Satoshi Takase, Kota Kitamura
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Patent number: 7288603Abstract: An object of the present invention is to obtain a novel polymeric material capable of forming a solid polymer electrolyte excellent not only in processability, solvent resistance and durability/stability but also in ion conductivity by introducing sulfonic acid group or phosphonic acid group into a polybenzazole compound having excellent properties in view of heat resistance, solvent resistance, mechanical characteristics and the like. Means attaining the object of the present invention is a polybenzazole compound including an aromatic dicarboxylic acid bond unit having sulfonic acid group and/or phosphonic acid group and satisfying either a condition that inherent viscosity measured in concentrated sulfuric acid is in the range of 0.25 to 10 dl/g or a condition that inherent viscosity measured in a methanesulfonic acid solution is in the range of 0.1 to 50 dl/g.Type: GrantFiled: November 12, 2001Date of Patent: October 30, 2007Assignee: Toyo Boseki Kabushiki KaishaInventors: Yoshimitsu Sakaguchi, Kota Kitamura, Hiroaki Taguchi, Junko Nakao, Shiro Hamamoto, Hiroshi Tachimori, Satoshi Takase
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Publication number: 20060241192Abstract: A composite ion exchange membrane having a high swelling resistance and being superior in mechanical strength and ion conductivity can be provided by means of an composite ion exchange membrane including an ion exchange resin composition and a support membrane having a continuous pore penetrating the support membrane, wherein the support membrane is one which accepts the ion exchange resin composition within the pore, and wherein the ion exchange resin composition is one which contains an ion exchange resin containing, as a main component, an aromatic polyether and/or its derivative, the aromatic polyether being obtained by mixing a compound having a specific structure, an aromatic dihalogenated compound and a bisphenol compound with a carbonate and/or a bicarbonate of an alkali metal and polymerizing the mixture in an organic solvent.Type: ApplicationFiled: October 16, 2003Publication date: October 26, 2006Inventors: Kota Kitamura, Yoshimitsu Sakaguchi, Shigenori Nagahara, Shiro Hamamoto, Naohiko Takimoto, Hideki Sugihara, Satoshi Takase, Tooru Kitagawa, Miyako Noshiro
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Publication number: 20060138042Abstract: The present invention is a heat-resistant film comprising at least any one of a polybenzazole, aramid and polyamideimide produced by introducing a thin film made by a roll, slit or press from a polymer solution sandwiched between at least two supports into a coagulating bath and peeling the supports off in the coagulating bath to effect the coagulation, and a composite ion-exchange membrane having a surface layer consisting of an ion-exchange resin excluding a porous film on the both side of a composite layer formed by impregnating said film with the ion-exchange resin. A heat-resistant film having a combination of excellent heat resistance, mechanical strength, smoothness and interlaminar peeling resistance, especially a microporous heat-resistant film, and a composite ion-exchange membrane employing the same which has an excellent ion conductivity are provided.Type: ApplicationFiled: October 23, 2003Publication date: June 29, 2006Inventors: Kazutake Okamoto, Hisato Kobayashi, Keizo Kawahara, Shiro Hamamoto, Satoshi Takase, Yoshimitsu Sakaguchi, Cyuji Inukai, Jun Yamada, Daisuke Sakura, Muneatsu Nakamura
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Publication number: 20060014561Abstract: The communication state information providing system comprises a cellular phone of an information provider, and an information providing device having an information receiving unit for receiving, via a wireless LAN, the communication state information transmitted from the cellular phone, a communication state information storage unit for storing the communication state information received by the information receiving unit associated with the phone number specifying the cellular phone, and an information transmitting unit for transmitting the communication state information stored in the communication state information storage unit to a destination associated with the phone number of the cellular phone.Type: ApplicationFiled: July 11, 2005Publication date: January 19, 2006Applicants: NTT DoCoMo, Inc., NEC CorporationInventors: Yasuo Morinaga, Masaharu Nakatsuchi, Toshio Kaneda, Satoshi Takase, Nobuaki Sasao, Masashi Itoh
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Publication number: 20050095486Abstract: The present invention provides a composite ion exchange membrane which has high mechanical strength and is suitable for use as a solid polymer electrolyte membrane excellent in ionic conductivity and a method for its production. The invention is achieved by a composite ion exchange membrane including a composite layer comprising a support membrane with continuous voids formed of polybenzazole polymer, the support membrane being impregnated with ion exchange resin, and surface layers formed of ion exchange resin free of support membranes, the surface layers being formed on both surfaces of the composite layer so as to sandwich the composite layer therebetween.Type: ApplicationFiled: February 3, 2003Publication date: May 5, 2005Inventors: Shiro Hamamoto, Satoshi Takase, Yoshimitsu Sakaguchi, Shigenori Nagahara, Kota Kitamura, Junko Nakao, Kousuke Sasai
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Publication number: 20040062969Abstract: An object of the present invention is to obtain a novel polymeric material capable of forming a solid polymer electrolyte excellent not only in processability, solvent resistance and durability/stability but also in ion conductivity by introducing sulfonic acid group or phosphonic acid group into a polybenzazole compound having excellent properties in view of heat resistance, solvent resistance, mechanical characteristics and the like.Type: ApplicationFiled: October 28, 2003Publication date: April 1, 2004Inventors: Yoshimitsu Sakaguchi, Kota Kitamura, Hiroaki Taguchi, Junko Nakao, Shiro Hamamoto, Hiroshi Tachimori, Satoshi Takase
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Patent number: 6509119Abstract: The carbon electrode material of the present invention is used for a vanadium redox-flow cell. The carbon electrode material has quasi-graphite crystal structure in which <002> spacing obtained by X-ray wide angle analysis is 3.43 to 3.60 Å, size of a crystallite in c axial direction is 15 to 33 Å and size of crystallite in a axial direction is 30 to 70 Å. In addition, an amount of surface acidic functional groups obtained by XPS surface analysis is 0.1 to 1.2% and total number of surface bound-nitrogen atoms is 5% or smaller relative to total number of surface carbon atoms. The carbon electrode materials formed of a non-woven fabric of a carbonaceouss fiber is preferable.Type: GrantFiled: June 8, 2000Date of Patent: January 21, 2003Assignee: Toyo Boseki Kabushiki KaishaInventors: Masaru Kobayashi, Makoto Inoue, Satoshi Takase
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Publication number: 20020080142Abstract: Herein disclosed is an electronic information distributing terminal equipment (2A) for storing and distributing the electronic information containing a text information and a corresponding motion image information in a memory card (1) equipped with an electrically reloadable nonvolatile semiconductor memory device, which equipment comprises a card stock (225) having a plurality of memory cards stored in advance with the information which has been transmitted through a communication interface (200) for transmitting the electronic information to be distributed, wherein the electronic information is distributed by discharging the memory card even in response to a demand for distributing only the electronic information, and wherein the memory card inserted with the demand is utilized again as a new card stock (225).Type: ApplicationFiled: December 18, 2001Publication date: June 27, 2002Applicant: Hitachi, Ltd.Inventors: Satoshi Takase, Masaharu Kubo, Takeshi Munakata
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Patent number: 6381513Abstract: Herein disclosed is an electronic information distributing terminal equipment for storing and distributing the electronic information containing a text information and a corresponding motion image information in a memory card equipped with an electrically reloadable nonvolatile semiconductor memory device, which equipment comprises a card stock having a plurality of memory cards stored in advance with the information which has been transmitted through a communication interface for transmitting the electronic information to be distributed, wherein the electronic information is distributed by discharging the memory card even in response to a demand for distributing only the electronic information, and wherein the memory card inserted with the demand is utilized again as a new card stock.Type: GrantFiled: July 21, 1997Date of Patent: April 30, 2002Assignee: Hitachi, Ltd.Inventors: Satoshi Takase, Masaharu Kubo, Takeshi Munakata
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Patent number: 5502483Abstract: The present invention relates to a video camera apparatus which can automatically correct an image vibration, such as a handling or the like electronically. A control circuit changes an interpolation coefficient .alpha. of an interpolation processing circuit in response to a detected output from a vibration detecting apparatus or an output from a motion vector calculating apparatus that detects a vibration of a video signal. Also, the control circuit controls a scanning pulse generating circuit that derives a scanning pulse for scanning the imager. The scanning pulse generating circuit changes a combination of two scanning lines that are to be interpolated by the interpolation processing circuit using the interpolation coefficient .alpha. by changing the scanning state of the imager when 0.ltoreq..alpha.<X or (1-X)<.alpha..ltoreq.1 and X.ltoreq..alpha..ltoreq.(1-X) if X is a limited value of the interpolation coefficient .alpha. and the limited value X is a value smaller than 1/2.Type: GrantFiled: December 21, 1993Date of Patent: March 26, 1996Assignee: Hitachi, Ltd.Inventors: Satoshi Takase, Takuya Imaide, Toshiro Kinugasa, Hiroyuki Komatsu
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Patent number: 5500674Abstract: In a method of driving a solid-state image sensor having an effective pixel area formed of a plurality of pixels in an array having M pixels in the vertical direction and N pixels in the horizontal direction, a scanning pixel area formed of m pixels in the vertical direction and n pixels in the horizontal direction (where M>m, N.gtoreq.n) is established within the effective pixel area, and charges stored in the pixels in the scanning pixel area are transferred by vertical CCDs driven by a first scanning pulse to a horizontal CCD and the charges transferred to the horizontal CCD are transferred by the horizontal CCD driven by a second scanning pulse to an output portion of the horizontal CCD.Type: GrantFiled: January 9, 1995Date of Patent: March 19, 1996Assignee: Hitachi, Ltd.Inventors: Satoshi Takase, Takuya Imaide, Toshiro Kinugasa, Ryuji Nishimura
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Patent number: 5402169Abstract: In a method of driving a solid-state image sensor having an effective pixel area formed of a plurality of pixels in an array having M pixels in the vertical direction and N pixels in the horizontal direction, a scanning pixel area formed of m pixels in the vertical direction and n pixels in the horizontal direction (where M>m, N.gtoreq.n) is established within the effective pixel area, and charges stored in the pixels in the scanning pixel area are transferred by vertical CCDs driven by a first scanning pulse to a horizontal CCD and the charges transferred to the horizontal CCD are transferred by the horizontal CCD driven by a second scanning pulse to an output portion of the horizontal CCD.Type: GrantFiled: May 9, 1994Date of Patent: March 28, 1995Assignee: Hitachi, Ltd.Inventors: Satoshi Takase, Takuya Imaide, Toshiro Kinugasa, Ryuji Nishimura
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Patent number: 5112677Abstract: An electret sheet comprises a porous sheet made of a dielectric polymer and at least one solid material selected from the group consisting of organic materials, inorganic materials, and metallic materials, the porous sheet having the material spaced at various intervals and a method for the manufacture of the said electret sheet.Type: GrantFiled: November 28, 1988Date of Patent: May 12, 1992Assignee: Toyo Boseki Kabushiki KaishaInventors: Yatsuhiro Tani, Satoshi Takase
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Patent number: 5110620Abstract: An electret sheet comprises a porous sheet made of a dielectric polymer and at least one solid material selected from the group consisting of organic materials, inorganic materials, and metallic materials, the porous sheet having the material spaced at various intervals and a method for the manufacture of the said electret sheet.Type: GrantFiled: October 3, 1991Date of Patent: May 5, 1992Assignee: Toyo Boseki Kabushiki KaishaInventors: Yatsuhiro Tani, Satoshi Takase