Patents by Inventor Takao Watanabe
Takao Watanabe 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: 20240120502Abstract: An electrode catalyst is provided in which degradation of catalytic action over time is suppressed. The electrode catalyst includes a mesoporous carbon support having pores, and catalyst metal particles supported in at least some of the pores. The ratio r/R of the mean particle size r of the catalyst metal particles to the modal pore size R of the pores is from 0.01 to 0.6, and the mean particle size r is 6 nm or less. The modal pore size R of the pores is preferably from 2 to 50 nm.Type: ApplicationFiled: February 1, 2022Publication date: April 11, 2024Inventors: Kosei SUGAHARA, Takaaki FUJINO, Takao OSAKO, Takuya KITABATAKE, Hiromu WATANABE
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Publication number: 20240112764Abstract: An information processing device includes one or more processors. The one or more processors are configured to optimize, for a specific elementary reaction in a reaction using a catalyst including a plurality of elementary reactions, an arrangement of a promoter element in the catalyst based on activation energy acquired using a trained model, and search for the promoter element based on the activation energy acquired using the trained model for each type of the promoter element.Type: ApplicationFiled: December 8, 2023Publication date: April 4, 2024Applicants: ENEOS Corporation, Preferred Networks, Inc.Inventors: Yoshihiro YAYAMA, Yusuke ASANO, Takafumi ISHII, Takao KUDO, Taku WATANABE, Ryohto SAWADA
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Publication number: 20230369618Abstract: A fuel cell control command device including: a catalyst potential calculation unit for calculating a catalyst potential of a cathode catalyst; a coating state calculation unit for calculating an oxide film formation amount of the catalyst; a command value candidate calculation unit for calculating a plurality of command value candidates including a combination of an estimated current, estimated total voltage, and a candidate control parameter, from which a power command value is obtained; a loss amount calculation unit for calculating an estimated loss for each combination; a provisional catalyst potential calculation unit for calculating an estimated catalyst potential for each combination; a deterioration amount calculation unit for calculating an estimated deterioration amount for each combination; and a command value calculation unit for selecting a combination having a minimum comprehensive index including the estimated loss and/or the estimated deterioration amount and outputting the selected combinatiType: ApplicationFiled: September 21, 2021Publication date: November 16, 2023Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Norihiro FUKAYA, Takao WATANABE, Ryoichi HIBINO
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Publication number: 20230361327Abstract: An operation mode of a secondary battery (BAT) is determined based on state of charge of BAT. A power generation provisional command value of fuel cell (FC) at time i is determined to maximize efficiency of FC based on system required power and state of charge of BAT at time i. An intermittent ON/OFF state at time i is determined such that switching of intermittent operation of FC is not continuous based on operation mode of BAT, the power generation provisional command value, and the system required power at time i, and an intermittent ON/OFF state at time (i?1). Further, when intermittent ON is determined at time i, the FC is stopped, and when intermittent OFF is determined at time i, a larger one is output, as the power generation command value for the FC at time i, between the power generation provisional command value and an intermittent OFF threshold.Type: ApplicationFiled: September 21, 2021Publication date: November 9, 2023Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Takao WATANABE, Norihiro FUKAYA, Ryoichi HIBINO
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Publication number: 20220266877Abstract: A bogie for a railway vehicle 1 includes an elastic element 20 that is arranged between a vehicle body 7 and a bogie frame 3 of a railway vehicle and elastically supports both, and the elastic element 20 is configured in such a manner that a spring constant for displacement in the longitudinal direction in the traveling direction of the vehicle body 7 is smaller than that for displacement in the vertical direction or the left-and-right direction in the traveling direction.Type: ApplicationFiled: June 19, 2020Publication date: August 25, 2022Inventors: Kenjirou GOUDA, Masataka HIDAI, Katuyuki IWASAKI, Takao WATANABE
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Patent number: 11279239Abstract: A power generation amount of a power generator disposed on a vehicle is appropriately controlled by ordering the power generator a required power generation amount so as to control the power generator, driving a drive motor configured to drive a driving wheel of the vehicle using at least part of electric power generated by the power generator according to the required power generation amount, storing at least part of surplus power left in the electric power generated by the power generator in a storage device, detecting a slip of the driving wheel, and, executing reduction processing of a power generation amount for further reducing a required power generation amount that reflects a reduction amount of the electric power for driving the drive motor due to the slip of the driving wheel, if the detected extent of the slip is larger than a predetermined threshold.Type: GrantFiled: March 13, 2019Date of Patent: March 22, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takao Watanabe, Junichi Matsuo
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Patent number: 11200270Abstract: A search condition related to image and text stored in a first database is associated with the image and the text, and an information providing unit selects the image and the text associated with a received search condition from among images related to a facility associated with a facility information extracted by a search processing unit and the text describing the service provided at the facility, generates search result guide data in which the extracted facility information and the selected image and the selected text are included, and provides the search result guide data to a user terminal.Type: GrantFiled: November 30, 2015Date of Patent: December 14, 2021Assignee: GURUNAVI, INC.Inventors: Daisuke Komuro, Ryota Kimura, Kazumu Sugawara, Takao Watanabe
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Patent number: 11084682Abstract: A sheet processing apparatus includes: a second conveying roller pair that receives and conveys a sheet conveyed by a first conveying roller pair; a first folding roller pair that forms a first fold on the sheet; and a first rotation unit capable of rotating the second conveying roller pair and the first folding roller pair. One roller of the second conveying roller pair and one roller of the first folding roller pair are a common roller shared therebetween. The second conveying roller pair causes the sheet to be deflected and guided to the first folding roller pair, and the first folding roller pair forms the first fold on the deflected sheet by rotating the first rotation unit in a certain direction in a state in which the sheet is held by the first conveying roller pair and the second conveying roller pair.Type: GrantFiled: September 11, 2018Date of Patent: August 10, 2021Assignee: Ricoh Company, LimitedInventors: Takahiro Watanabe, Tomohiro Furuhashi, Michitaka Suzuki, Tomomichi Hoshino, Yuji Suzuki, Satoshi Saito, Takao Watanabe
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Patent number: 11069909Abstract: In a fuel cell vehicle, when temperature of a power storage device detected by a temperature sensor is a second temperature, which is lower than a predetermined first temperature, at least in a period when the power storage device is allowed to be charged with regenerative electric power, remaining charge is controlled by setting a lower limit to a value higher than a lower limit set at the first temperature. When a stop instruction for a fuel cell system is input, remaining charge raising processing for raising the remaining charge of the power storage device is performed.Type: GrantFiled: September 27, 2019Date of Patent: July 20, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takao Watanabe, Tomoya Ogawa, Tatsuya Fukami, Junichi Matsuo
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Publication number: 20210172784Abstract: The liquid source vaporization apparatus comprises a tank inside of which a liquid source is stored, a heater that applies heat to the liquid source in the tank, a plurality of liquid surface detecting bodies wherein each of liquid surface detecting points is arranged in a predetermined height range in the tank with a set height regarded as the reference, a reference detecting body arranged above the predetermined height range in the tank, and a liquid surface discriminator that discriminates whether or not there is the liquid source at the set height on a basis of a threshold value set based on a change in electrical resistance of the reference detecting body and a change in electrical resistance of a plurality of the liquid surface detecting bodies.Type: ApplicationFiled: December 1, 2020Publication date: June 10, 2021Inventors: Tadayuki NAGANO, Takao WATANABE
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Patent number: 10974923Abstract: A sheet processing device includes a conveying unit, a presser, an end detector, and a setting unit. The conveying unit conveys a sheet having a crease formed therein. The presser presses the crease in the sheet. The end detector detects an end in a conveying direction of the sheet at a position upstream of the presser in the conveying direction. The setting unit sets a crease position where the crease is to be formed. Upon detection of the end in the conveying direction, the conveying unit conveys the sheet to a position where the crease faces the presser, on the basis of the crease position set by the setting unit. The presser presses the crease in the conveyed sheet.Type: GrantFiled: May 12, 2020Date of Patent: April 13, 2021Assignee: RICOH COMPANY, LIMITEDInventors: Michitaka Suzuki, Tomohiro Furuhashi, Tomomichi Hoshino, Satoshi Saito, Takahiro Watanabe, Takao Watanabe, Yuji Suzuki
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Patent number: 10953622Abstract: A sheet processing device includes: a conveying module that conveys a folded sheet; and a pressing module that presses a folded part of the folded sheet by rotating about a direction orthogonal to a sheet conveying direction of the conveying module as a rotation axis. The pressing module includes a projecting part arranged in a certain range in a direction of the rotation axis along a circumferential surface about the rotation axis. The projecting part is formed to be symmetric with respect to a middle part of the rotation axis in the direction of the rotation axis, and the projecting part arranged on one side from the middle part along the direction of the rotation axis are formed such that a position of the projecting part in a rotational direction of the circumferential surface varies along the direction of the rotation axis.Type: GrantFiled: April 25, 2018Date of Patent: March 23, 2021Assignee: RICOH COMPANY, LTD.Inventors: Michitaka Suzuki, Tomohiro Furuhashi, Tomomichi Hoshino, Akira Kunieda, Takahiro Watanabe, Yuji Suzuki, Satoshi Saito, Koki Sakano, Takao Watanabe
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Patent number: 10770761Abstract: Under a condition that a command to stop a fuel cell system is received and a state of charge of a secondary battery is equal to or lower than a threshold which is a value obtained by adding a first predetermined value to a lower limit at which electric power required to stop and start the fuel cell system is supplied, forced charging of the secondary battery by a fuel cell is performed until the state of charge reaches the threshold. After the forced charging is performed, in a case where the command to stop the fuel cell system is received within a predetermined period, the controller sets the threshold to a value obtained by adding a second predetermined value lower than the first predetermined value to the lower limit under the condition.Type: GrantFiled: February 20, 2018Date of Patent: September 8, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takao Watanabe, Junichi Matsuo, Shinji Aso
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Publication number: 20200270093Abstract: A sheet processing device includes a conveying unit, a presser, an end detector, and a setting unit. The conveying unit conveys a sheet having a crease formed therein. The presser presses the crease in the sheet. The end detector detects an end in a conveying direction of the sheet at a position upstream of the presser in the conveying direction. The setting unit sets a crease position where the crease is to be formed. Upon detection of the end in the conveying direction, the conveying unit conveys the sheet to a position where the crease faces the presser, on the basis of the crease position set by the setting unit. The presser presses the crease in the conveyed sheet.Type: ApplicationFiled: May 12, 2020Publication date: August 27, 2020Applicant: Ricoh Company, Ltd.Inventors: Michitaka SUZUKI, Tomohiro FURUHASHI, Tomomichi HOSHINO, Satoshi SAITO, Takahiro WATANABE, Takao WATANABE, Yuji SUZUKI
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Patent number: 10739267Abstract: Exemplary embodiments of the present disclosure relate to providing an optical apparatus that is capable of acquiring representative Raman spec trams with high reliability from hyper spectrum images of samples. An optical apparatus according to this disclosure: receives a specifying input that specifies a specific Raman spectrum bandwidth as a reference signal; and extracts a Raman spectrum for a measurement point where an intensity of the reference signal is at or above a reference intensity.Type: GrantFiled: October 24, 2017Date of Patent: August 11, 2020Assignee: HITACHI LTD.Inventors: Kakuro Hirai, Manabu Shiozawa, Takao Watanabe
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Patent number: 10717625Abstract: A sheet processing device includes a conveying unit, a presser, an end detector, and a setting unit. The conveying unit conveys a sheet having a crease formed therein. The presser presses the crease in the sheet. The end detector detects an end in a conveying direction of the sheet at a position upstream of the presser in the conveying direction. The setting unit sets a crease position where the crease is to be formed. Upon detection of the end in the conveying direction, the conveying unit conveys the sheet to a position where the crease faces the presser, on the basis of the crease position set by the setting unit. The presser presses the crease in the conveyed sheet.Type: GrantFiled: May 10, 2018Date of Patent: July 21, 2020Assignee: RICOH COMPANY, LIMITEDInventors: Michitaka Suzuki, Tomohiro Furuhashi, Tomomichi Hoshino, Satoshi Saito, Takahiro Watanabe, Takao Watanabe, Yuji Suzuki
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Publication number: 20200127310Abstract: In a fuel cell vehicle, when temperature of a power storage device detected by a temperature sensor is a second temperature, which is lower than a predetermined first temperature, at least in a period when the power storage device is allowed to be charged with regenerative electric power, remaining charge is controlled by setting a lower limit to a value higher than a lower limit set at the first temperature. When a stop instruction for a fuel cell system is input, remaining charge raising processing for raising the remaining charge of the power storage device is performed.Type: ApplicationFiled: September 27, 2019Publication date: April 23, 2020Inventors: Takao WATANABE, Tomoya OGAWA, Tatsuya FUKAMI, Junichi MATSUO
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Patent number: 10497995Abstract: There is provided a fuel cell system. When receiving an instruction to start power generation of the fuel cell system, the fuel cell system is configured: (i) to obtain an output limit value of a secondary battery according to a predetermined relationship of a temperature of the secondary battery to the output limit value of the secondary battery by using the temperature of the secondary battery; (ii) to control a battery converter such as to increase a voltage of a smoothing capacitor for boosting included in the battery converter to a start-time target voltage that is higher than an open circuit voltage of a fuel cell, such that an output power of the secondary battery does not exceed the output limit value; and (iii) to operate the compressor such as to start supplying the cathode gas by the cathode gas supply system and to open the main stop valve such as to start supplying the anode gas by the anode gas supply system.Type: GrantFiled: June 16, 2017Date of Patent: December 3, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuji Kakeno, Kenji Umayahara, Takao Watanabe
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Patent number: 10486543Abstract: Provided is a voltage control device of a fuel-cell vehicle capable of securing good acceleration responsiveness while suppressing battery deterioration even when a vehicle acceleration request is made in the situation where the output from a battery is restricted. When determining that electric power suppliable from a secondary battery to an air compressor is less than a lower limit of an acceleration maintaining-electric power of the air compressor, a voltage control device of a fuel-cell vehicle maintains a state where electric power generated by a fuel cell is consumed by an electric power drive, and supplies the electric power consumed by the electric power drive to the air compressor when a vehicle acceleration request is made.Type: GrantFiled: October 24, 2017Date of Patent: November 26, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Junichi Matsuo, Akihiro Kamiya, Tomoya Ogawa, Shinji Aso, Tatsuya Fukami, Takao Watanabe
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Patent number: D1015916Type: GrantFiled: December 1, 2021Date of Patent: February 27, 2024Assignee: CASIO KEISANKI KABUSHIKI KAISHAInventors: Tomohiro Hamaue, Hideki Watanabe, Takao Matsuda