Patents by Inventor Tomoyuki Kawamura
Tomoyuki Kawamura 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: 20240097201Abstract: A manufacturing method for a secondary battery disclosed herein includes: a first step of manufacturing a wound electrode body with a flat shape by stacking a first separator, a positive electrode, a second separator, and a negative electrode and winding the stack; a second step of disposing the wound electrode body in a battery case; and a third step of injecting an electrolyte solution into the battery case. In the first step, the wound electrode body is manufactured in a manner that when peel strength between the first separator and the negative electrode is A (N/m) and peel strength between the second separator and the negative electrode is B (N/m), a difference between the peel strength A and the peel strength B is 0.5 (N/m) or more.Type: ApplicationFiled: September 13, 2023Publication date: March 21, 2024Inventors: Atsushi KAWAMURA, Tomoyuki YAMADA
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Patent number: 11917682Abstract: Provided is a wireless LAN system in which an interference control signal transmitter that is provided in the surroundings of the wireless LAN base station and the wireless LAN terminal, and is configured to collect wireless environment information regarding the interfering AP/STA, and transmit, to the interfering AP/STA, an interference control signal that is to be used to set a transmission waiting period; and an interference control signal management device configured to collect the wireless environment information from the interference control signal transmitter, determine the interference control signal transmitter whose communication area includes the interfering AP/STA based on the wireless environment information, and control the determined interference control signal transmitter to transmit the interference control signal to be used to set the transmission waiting period that corresponds to a length of time of the communication between the wireless LAN base station and the wireless LAN terminal, wherType: GrantFiled: November 8, 2019Date of Patent: February 27, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Kenichi Kawamura, Yasushi Takatori, Tomoyuki Yamada, Hiroshi Nakamoto, Keisuke Wakao, Shota Nakayama
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Publication number: 20230143920Abstract: The present disclosure relates to a dissimilar metal-doped cerium oxide including cerium oxide and a dissimilar metal other than the cerium oxide, in which a relationship of the following formula (1) is satisfied: 0.8?|(D90)?(D10)|/D50?2.0??(1) (in the formula (1), D10, D50, and D90 respectively represent the following: D10: particle diameter at which cumulative volume fraction is 10% D50: particle diameter at which cumulative volume fraction is 50% D90: particle diameter at which cumulative volume fraction is 90%).Type: ApplicationFiled: March 24, 2021Publication date: May 11, 2023Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tomoyuki KAWAMURA, Takanori NAKANO, Masahiro ABE
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Publication number: 20230015502Abstract: A catalyst containing, as an essential component, molybdenum; bismuth; and cobalt, in which a sum (S) of ratios of peak intensities expressed by the following formula in an X-ray diffraction pattern obtained by using CuK? rays as an X-ray source is 42 or more and 113 or less. S={(peak intensity at 2?=14.1°±0.1°+(peak intensity at 2?=25.4°±0.1°)+(peak intensity at 2?=28.5°±0.1°)}/(peak intensity at 2?=26.5°±0.Type: ApplicationFiled: January 8, 2021Publication date: January 19, 2023Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Shigeki OKUMURA, Shogo YASUDA, Tomohiro OBATA, Seiichiro FUKUNAGA, Tomoyuki KAWAMURA
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Publication number: 20220169587Abstract: Provided is a method for producing an unsaturated aldehyde including subjecting an alkene to partial oxidation using a fixed bed multi-tube reactor to produce the corresponding unsaturated aldehyde, in which n catalyst layers (n is 2 or more) in a gas flow direction in a reaction tube are provided, when a filling length of the catalyst layers from a first catalyst layer to an (n-1)th catalyst layer from a gas inlet side of the reaction tube is L, and a filling length of an nth catalyst layer from the gas inlet side of the reaction tube is Ln, a relationship between L and Ln satisfies the following equation (1): 1 < L ? / ? Ln ? 3 , ( 1 ) and a composition of a catalytically active component contained in the catalyst layers from the first catalyst layer to the (n-1)th layer from the gas inlet side of the reaction tube is different from a composition of a catalytically active component contained in the nth catalyst layer from the gas inlet side of the reaction tube.Type: ApplicationFiled: March 17, 2020Publication date: June 2, 2022Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tomoyuki KAWAMURA, Ryota HIRAOKA, Shogo YASUDA
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Patent number: 11254634Abstract: Provided is a method for producing at least one of an unsaturated aldehyde and an unsaturated carboxylic acid from an alkene by an oxidation reaction, in which a n-layered catalyst layer (n?2) is provided in a gas flow direction in a reaction tube, two or more kinds of catalysts having different activities are used; and the catalysts are packed in such a manner that dT?20° C. is satisfied, when a difference between a temperature PTn of an exothermic peak in a n-th layer as counted from a gas inlet and a minimum value mTn?1 of a temperature of a catalyst layer which appears between an exothermic peak in a (n-1)th layer and an exothermic peak in a n-th layer from the gas inlet is represented as dT (=PTn?mTn?1), and the change rate of dT is 2.5 or less at a reaction bath temperature within a range of ±6° C. of a reaction bath temperature at which the highest yield is obtained.Type: GrantFiled: April 10, 2019Date of Patent: February 22, 2022Assignee: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Ryota Hiraoka, Shogo Yasuda, Tomoyuki Kawamura, Takanori Nakano
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Publication number: 20210155569Abstract: Provided is a method for producing at least one of an unsaturated aldehyde and an unsaturated carboxylic acid from an alkene by an oxidation reaction, in which a n-layered catalyst layer (n?2) is provided in a gas flow direction in a reaction tube, two or more kinds of catalysts having different activities are used; and the catalysts are packed in such a manner that dT?20° C. is satisfied, when a difference between a temperature PTn of an exothermic peak in a n-th layer as counted from a gas inlet and a minimum value mTn-1 of a temperature of a catalyst layer which appears between an exothermic peak in a (n?1)th layer and an exothermic peak in a n-th layer from the gas inlet is represented as dT (=PTn?mTn-1), and the change rate of dT is 2.5 or less at a reaction bath temperature within a range of ±6° C. of a reaction bath temperature at which the highest yield is obtained.Type: ApplicationFiled: April 10, 2019Publication date: May 27, 2021Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Ryota HIRAOKA, Shogo YASUDA, Tomoyuki KAWAMURA, Takanori NAKANO
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Patent number: 10851040Abstract: A method for producing at least one oxidation product selected from the group consisting of acrolein and acrylic acid is provided. This method can alleviate concerns about deterioration of a gas-phase oxidation catalyst and reaction runaway in a restart period after a shutdown, and can allow the reaction to proceed in a stable state. Using a fixed-bed reactor filled with a gas-phase oxidation catalyst, at least one source gas selected from the group consisting of propylene and acrolein is subjected to a gas-phase contact oxidation reaction while a heating medium is caused to contact with or circulate through the fixed-bed reactor and thereby to heat the fixed-bed reactor. The temperature of the heating medium when the load is maximum in the restart period after the shutdown is controlled to be lower than the temperature of the heating medium when the load is maximum in an initial start-up period.Type: GrantFiled: March 29, 2017Date of Patent: December 1, 2020Assignee: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tomoyuki Kawamura, Tomoaki Kobayashi, Tatsuhiko Kurakami, Hideo Yoshida
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Publication number: 20200048175Abstract: A method for producing at least one oxidation product selected from the group consisting of acrolein and acrylic acid is provided. This method can alleviate concerns about deterioration of a gas-phase oxidation catalyst and reaction runaway in a restart period after a shutdown, and can allow the reaction to proceed in a stable state. Using a fixed-bed reactor filled with a gas-phase oxidation catalyst, at least one source gas selected from the group consisting of propylene and acrolein is subjected to a gas-phase contact oxidation reaction while a heating medium is caused to contact with or circulate through the fixed-bed reactor and thereby to heat the fixed-bed reactor. The temperature of the heating medium when the load is maximum in the restart period after the shutdown is controlled to be lower than the temperature of the heating medium when the load is maximum in an initial start-up period.Type: ApplicationFiled: March 29, 2017Publication date: February 13, 2020Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tomoyuki KAWAMURA, Tomoaki KOBAYASHI, Tatsuhiko KURAKAMI, Hideo YOSHIDA
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Patent number: 10300463Abstract: Provided is a catalyst for manufacturing an unsaturated aldehyde and/or an unsaturated carboxylic acid, which is prepared by a method in which a molybdenum component raw material is composed of only an ammonium molybdate, the weight of water for dissolution is 8.5 times or less relative to the weight of molybdenum contained in the ammonium molybdate; and a bismuth component raw material is composed of only bismuth nitrate, the weight of a nitric acid aqueous solution for dissolution is 2.3 times or more relative to the weight of bismuth contained in the bismuth nitrate, and a nitric acid concentration in the nitric acid aqueous solution for dissolving the bismuth nitrate is 10% by weight or more.Type: GrantFiled: February 25, 2016Date of Patent: May 28, 2019Assignee: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tomoyuki Kawamura, Motohiko Sugiyama, Ryota Hiraoka
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Publication number: 20180186712Abstract: Provided is a method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid, which enables one to achieve an operation stably over a long period of time while improving an effective yield, even in a high-load reaction, and in the method for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid, multilayer filling of stacking two or more catalyst layers each containing a complex metal oxide catalyst in the axial direction of the tube under specified conditions is performed, and the catalyst layer on the most gas outlet side in the tube axis contains a catalyst containing a compound represented by a specified formulation formula.Type: ApplicationFiled: May 12, 2016Publication date: July 5, 2018Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Motohiko SUGIYAMA, Ryota HIRAOKA, Tomoyuki KAWAMURA, Shogo YASUDA
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Publication number: 20180029018Abstract: Provided is a catalyst for manufacturing an unsaturated aldehyde and/or an unsaturated carboxylic acid, which is prepared by a method in which a molybdenum component raw material is composed of only an ammonium molybdate, the weight of water for dissolution is 8.5 times or less relative to the weight of molybdenum contained in the ammonium molybdate; and a bismuth component raw material is composed of only bismuth nitrate, the weight of a nitric acid aqueous solution for dissolution is 2.3 times or more relative to the weight of bismuth contained in the bismuth nitrate, and a nitric acid concentration in the nitric acid aqueous solution for dissolving the bismuth nitrate is 10% by weight or more.Type: ApplicationFiled: February 25, 2016Publication date: February 1, 2018Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tomoyuki KAWAMURA, Motohiko SUGIYAMA, Ryota HIRAOKA
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Patent number: 9580376Abstract: Provided is a method of subjecting an alkene to partial oxidation by using a fixed bed multitubular reactor, thereby producing an unsaturated aldehyde and/or an unsaturated carboxylic acid each corresponding to the alkene, wherein a plurality of catalyst layers formed by N division (N is N?2) with respect to a gas flow direction of a reaction tube are provided, and when a change (° C.) of hot spot temperature per 1° C. change of reaction bath temperature in the catalyst layer is designated as Sn, at least one of the plurality of catalyst layers is regulated to Sn?6.Type: GrantFiled: July 17, 2014Date of Patent: February 28, 2017Assignee: Nippon Kayaku Kabushiki KaishaInventors: Tomoyuki Kawamura, Tatsuhiko Kurakami, Yuuta Nakazawa, Toru Kawaguchi, Motohiko Sugiyama
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Publication number: 20170002488Abstract: Provided is a noise-absorbing sheet that is highly effective at absorbing noise from magnetic and/or electric fields, the noise-absorbing effect being effective in wider bandwidths. A noise-absorbing sheet upon which at least two layers are stacked, wherein the noise absorbing sheet is characterized in that a magnetic layer containing a magnetic material and a layer of a noise-absorbing fabric in which a metal is deposited on constituent fibers are layered on said sheet, and the common logarithmic value of the surface resistivity of at least one side of the noise-absorbing fabric is 0 to 6.Type: ApplicationFiled: November 21, 2014Publication date: January 5, 2017Applicant: ASAHI KASEI KABUSHIKI KAISHAInventors: Tomoya TANAKA, Chie OKAMURA, Shinichi OKAJIMA, Tomoyuki KAWAMURA, Kazufumi KATO
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Publication number: 20160145180Abstract: Provided is a method of subjecting an alkene to partial oxidation by using a fixed bed multitubular reactor, thereby producing an unsaturated aldehyde and/or an unsaturated carboxylic acid each corresponding to the alkene, wherein a plurality of catalyst layers formed by N division (N is N?2) with respect to a gas flow direction of a reaction tube are provided, and when a change (° C.) of hot spot temperature per 1° C. change of reaction bath temperature in the catalyst layer is designated as Sn, at least one of the plurality of catalyst layers is regulated to Sn?6.Type: ApplicationFiled: July 17, 2014Publication date: May 26, 2016Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tomoyuki KAWAMURA, Tatsuhiko KURAKAMI, Yuuta NAKAZAWA, Toru KAWAGUCHI, Motohiko SUGIYAMA
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Patent number: 8487126Abstract: The objective of the present invention is to provide a process for simple and efficient preparation of an intermediate compound to synthesize a gadolinium complex having a substituent for improving a retention property in blood time and specificity to an intended organ. The objective of the present invention is also to provide an intermediate compound produced by the said production process. The process for preparation of the diethylenetriaminepentaacetic acid derivative (I): wherein R1 to R5 are independently C1-6 alkyl groups; comprising the steps of: reacting a diethylenetriaminepentaacetic acid pentaester with a halogenated ally compound in an aprotic solvent; removing the excess halogenated ally compound (III); and reacting a reaction product of the diethylenetriaminepentaacetic acid pentaester and the halogenated ally compound with a base in a solvent.Type: GrantFiled: September 22, 2010Date of Patent: July 16, 2013Assignee: The University of TokushimaInventors: Hisao Nemoto, Tomoyuki Kawamura, Kenji Yatsuzuka, Masaki Kamiya
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Publication number: 20120203027Abstract: The objective of the present invention is to provide a process for simple and efficient preparation of an intermediate compound to synthesize a gadolinium complex having a substituent for improving a retention property in blood time and specificity to an intended organ. The objective of the present invention is also to provide an intermediate compound produced by the said production process. The process for preparation of the diethylenetriaminepentaacetic acid derivative (I): wherein R1 to R5 are independently C1-6 alkyl groups; comprising the steps of: reacting a diethylenetriaminepentaacetic acid pentaester with a halogenated ally compound in an aprotic solvent; removing the excess halogenated ally compound (III); and reacting a reaction product of the diethylenetriaminepentaacetic acid pentaester and the halogenated ally compound with a base in a solvent.Type: ApplicationFiled: September 22, 2010Publication date: August 9, 2012Applicant: THE UNIVERSITY OF TOKUSHIMAInventors: Hisao Nemoto, Tomoyuki Kawamura, Kenji Yatsuzuka, Masaki Kamiya
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Patent number: 7952597Abstract: There is provided an image display device which can control image retention-preventing means in a static image displaying part, according to a change with the passage of time in a luminance difference. The drive of the image retention-preventing means is cancelled when accumulated elapsed-time during which the luminance difference is returned to approximately an original value elapses.Type: GrantFiled: December 8, 2005Date of Patent: May 31, 2011Assignee: Hitachi, Ltd.Inventors: Hidenao Kubota, Tomoyuki Kawamura
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Publication number: 20100004852Abstract: A navigation device searches for a facility that matches a category input by a user and displays an icon for indicating the searched facility. The navigation device includes a usage determination unit and a display control unit. The usage determination unit determines whether a host vehicle has used the searched facility based on map information and a host vehicle status. If it is determined by the usage determination unit that the host vehicle has used the searched facility, the display control unit executes a control to change a display status of an icon for indicating the facility that was determined as used, and a display status of an icon for indicating another facility in the same category as the facility that was determined as used.Type: ApplicationFiled: May 8, 2009Publication date: January 7, 2010Applicant: AISIN AW CO., LTD.Inventor: Tomoyuki KAWAMURA
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Patent number: 7550678Abstract: In a plasma display module, a flexible substrate is strengthened and a mounting structure for alleviating stresses is provided, thereby preventing the metal fatigue of wirings. In a PDP (Plasma Display Panel) module, a metal plate and a flexible substrate constituting a driver module are provided. On the flexible substrate, wirings not connected to electrodes of the panel (independent linear patterns) are disposed on an outer side of wirings and near an edge portion of the metal plate to which the flexible substrate is attached.Type: GrantFiled: April 21, 2006Date of Patent: June 23, 2009Assignee: Fujitsu Hitachi Plasma Display LimitedInventors: Tomoyuki Kawamura, Taizo Ohno, Yoshinori Okada, Takashi Sasaki, Hideki Isohata, Kenji Ishiwata