Patents by Inventor Shoji Nagata
Shoji Nagata 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: 12270191Abstract: A toilet management system includes a toilet bowl device installed in a toilet room, a management device configured to manage a use situation of the toilet bowl device, and a communication device configured to transmit use situation information related to the use situation of the toilet bowl device to the management device. The management device includes an acquirer configured to acquire the use situation information from the communication device, and an abnormality detector configured to detect an abnormality of the toilet bowl device or a facility or equipment installed inside or around the toilet room when the use situation information acquired by the acquirer matches a predetermined condition.Type: GrantFiled: November 28, 2023Date of Patent: April 8, 2025Assignee: LIXIL CorporationInventors: Makoto Saruta, Shoji Ogawa, Hiroki Shigetomo, Hideyuki Ida, Rina Nagai, Keita Matsudate, Misaki Nagata, Sadaaki Shichino, Toshiki Hashida
-
Patent number: 11955907Abstract: A rotating electrical machine control system (100) whose control target is an alternating-current rotating electrical machine (80) including M coil sets (8) includes M inverters (50) each including a plurality of switching elements (5) and connected to a direct-current power supply (41) and one of the coil sets (8) to convert electric power between a direct current and alternating currents of N phases; M current sensors (6) each provided for each coil set (8) to detect an alternating current of each phase flowing through the coil set (8); and an inverter control device (30) that generates switching control signals (S) for controlling the plurality of switching elements (5). The inverter control device (30) performs current feedback control of the rotating electrical machine (80) using all detection values for each of N phases obtained by the M current sensors (6), to generate the switching control signals (S) common to the M inverters (50).Type: GrantFiled: March 26, 2020Date of Patent: April 9, 2024Assignee: AISIN CORPORATIONInventors: Subrata Saha, Shoji Nagata
-
Publication number: 20220149753Abstract: A rotating electrical machine control system (100) whose control target is an alternating-current rotating electrical machine (80) including M coil sets (8) includes M inverters (50) each including a plurality of switching elements (5) and connected to a direct-current power supply (41) and one of the coil sets (8) to convert electric power between a direct current and alternating currents of N phases; M current sensors (6) each provided for each coil set (8) to detect an alternating current of each phase flowing through the coil set (8); and an inverter control device (30) that generates switching control signals (S) for controlling the plurality of switching elements (5). The inverter control device (30) performs current feedback control of the rotating electrical machine (80) using all detection values for each of N phases obtained by the M current sensors (6), to generate the switching control signals (S) common to the M inverters (50).Type: ApplicationFiled: March 26, 2020Publication date: May 12, 2022Applicant: AISIN CORPORATIONInventors: Subrata SAHA, Shoji NAGATA
-
Patent number: 10978983Abstract: A rotary electric machine control device that performs drive control on an AC rotary electric machine using an inverter that converts power between DC power and AC power through pulse width modulation based on a carrier frequency, the rotary electric machine control device including: an electronic control unit that is configured to vary the carrier frequency such that the carrier frequency becomes higher as a rotational speed of the rotary electric machine becomes higher so that carrier sideband frequencies, which are frequencies of sideband waves that appear on higher and lower sides of a center frequency that is set in accordance with the carrier frequency, are not included in a frequency band prescribed in advance.Type: GrantFiled: March 27, 2018Date of Patent: April 13, 2021Assignee: AISIN AW CO., LTD.Inventors: Masayuki Takenaka, Takuro Iwase, Akiya Kume, Shoji Nagata, Yasuyuki Sato
-
Publication number: 20200295696Abstract: A rotary electric machine control device that performs drive control on an AC rotary electric machine using an inverter that converts power between DC power and AC power through pulse width modulation based on a carrier frequency, the rotary electric machine control device including: an electronic control unit that is configured to vary the carrier frequency such that the carrier frequency becomes higher as a rotational speed of the rotary electric machine becomes higher so that carrier sideband frequencies, which are frequencies of sideband waves that appear on higher and lower sides of a center frequency that is set in accordance with the carrier frequency, are not included in a frequency band prescribed in advance.Type: ApplicationFiled: March 27, 2018Publication date: September 17, 2020Applicant: AISIN AW CO., LTD.Inventors: Masayuki TAKENAKA, Takuro IWASE, Akiya KUME, Shoji NAGATA, Yasuyuki SATO
-
Patent number: 9283948Abstract: In a vehicle that includes an engine, a motor, a generator, a battery electrically connected to the motor and the generator, and a transmission provided between the motor and an output shaft coupled to a drive wheel, an ECU executes “battery-less travel control” in which, at the time of a failure of the battery, the battery is isolated from the motor and the generator, the generator is caused to generate electric power by generating a torque, corresponding to an accelerator pedal operation amount, from the generator, and the vehicle is caused to travel by driving the motor using the electric power generated by the generator. The ECU suppresses losing a balance of input and output electric powers between the generator and the motor by filtering the accelerator pedal operation amount when a vehicle speed exceeds a limit vehicle speed during the battery-less travel control.Type: GrantFiled: November 23, 2012Date of Patent: March 15, 2016Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Nobuyuki Tanaka, Shoji Nagata
-
Patent number: 9273777Abstract: In a manual transmission mode, a downshift instruction signal is outputted by a position sensor, and a shift range is lowered by one gear, as a result of an operation of a shift lever by the driver. The driving force of the vehicle is increased through downshifting. The number of times of downshifting within a predefined time is limited to a predefined number of times.Type: GrantFiled: September 10, 2012Date of Patent: March 1, 2016Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.Inventors: Nobuyuki Tanaka, Masaya Amano, Shunsuke Oyama, Shoji Nagata
-
Patent number: 9216664Abstract: In a hybrid vehicle including an engine, a motor, a generator, and a battery that is electrically connected to the motor and the generator, an ECU performs “battery-less travel control” enabling the vehicle to travel when a fault occurs in the battery by disconnecting the battery from an electrical system including the motor and the generator and driving the motor using power that is generated by the generator using the power of the engine. When the battery-less travel control is underway and a vehicle speed V exceeds a vehicle speed limit Vsh, the ECU implements a vehicle speed limitation. As a result, a control mode of the motor is less likely to shift to a rectangular control mode during the battery-less travel control.Type: GrantFiled: November 7, 2012Date of Patent: December 22, 2015Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO. LTDInventors: Nobuyuki Tanaka, Shoji Nagata
-
Publication number: 20140366670Abstract: In a manual transmission mode, a downshift instruction signal is outputted by a position sensor, and a shift range is lowered by one gear, as a result of an operation of a shift lever by the driver. The driving force of the vehicle is increased through downshifting. The number of times of downshifting within a predefined time is limited to a predefined number of times.Type: ApplicationFiled: September 10, 2012Publication date: December 18, 2014Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Nobuyuki Tanaka, Masaya Amano, Shunsuke Oyama, Shoji Nagata
-
Publication number: 20140309831Abstract: In a vehicle that includes an engine, a motor, a generator, a battery electrically connected to the motor and the generator, and a transmission provided between the motor and an output shaft coupled to a drive wheel, an ECU executes “battery-less travel control” in which, at the time of a failure of the battery, the battery is isolated from the motor and the generator, the generator is caused to generate electric power by generating a torque, corresponding to an accelerator pedal operation amount, from the generator, and the vehicle is caused to travel by driving the motor using the electric power generated by the generator. The ECU suppresses losing a balance of input and output electric powers between the generator and the motor by filtering the accelerator pedal operation amount when a vehicle speed exceeds a limit vehicle speed during the battery-less travel control.Type: ApplicationFiled: November 23, 2012Publication date: October 16, 2014Inventors: Nobuyuki Tanaka, Shoji Nagata
-
Publication number: 20140288756Abstract: In a hybrid vehicle including an engine, a motor, a generator, and a battery that is electrically connected to the motor and the generator, an ECU performs “battery-less travel control” enabling the vehicle to travel when a fault occurs in the battery by disconnecting the battery from an electrical system including the motor and the generator and driving the motor using power that is generated by the generator using the power of the engine. When the battery-less travel control is underway and a vehicle speed V exceeds a vehicle speed limit Vsh, the ECU implements a vehicle speed limitation. As a result, a control mode of the motor is less likely to shift to a rectangular control mode during the battery-less travel control.Type: ApplicationFiled: November 7, 2012Publication date: September 25, 2014Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Nobuyuki Tanaka, Shoji Nagata
-
Patent number: 8057357Abstract: An object oil temperature is determined by adopting a gradual change process for an oil temperature of a cooling lubricant oil, which is used to lubricate and cool down a motor and a transmission constructed to cause an output power of the motor to be subjected to speed change and to be transmitted to a driveshaft. A load factor of the motor is subsequently set based on the set object oil temperature and a motor coil temperature. A motor torque command is set with the load factor, and the motor is then driven and controlled to ensure output of a torque equivalent to the set motor torque command. This arrangement drives and controls the motor with consideration of the oil temperature of the cooling lubricant oil and thus ensures more adequate actuation of the motor, compared with a conventional drive control without consideration of the oil temperature of the cooling lubricant oil.Type: GrantFiled: October 10, 2007Date of Patent: November 15, 2011Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd.Inventors: Akihiro Kimura, Kentaro Haruno, Takeshi Aoki, Atsushi Kayukawa, Shoji Nagata
-
Publication number: 20090258755Abstract: An object oil temperature is determined by adopting a gradual change process for an oil temperature of a cooling lubricant oil, which is used to lubricate and cool down a motor and a transmission constructed to cause an output power of the motor to be subjected to speed change and to be transmitted to a driveshaft. A load factor of the motor is subsequently set based on the set object oil temperature and a motor coil temperature. A motor torque command is set with the load factor, and the motor is then driven and controlled to ensure output of a torque equivalent to the set motor torque command. This arrangement drives and controls the motor with consideration of the oil temperature of the cooling lubricant oil and thus ensures more adequate actuation of the motor, compared with a conventional drive control without consideration of the oil temperature of the cooling lubricant oil.Type: ApplicationFiled: October 10, 2007Publication date: October 15, 2009Inventors: Akihiro Kimura, Kentaro Haruno, Takeshi Aoki, Atsushi Kayakawa, Shoji Nagata
-
Patent number: 5881288Abstract: A program development system in which the debugging apparatus is informed of all of the optimization processes which have been performed. A primitive storage unit stores record information for the optimization processes. The input unit receives an input of a variable and a value, or an input of a line where execution is to be halted. The primitive combining unit obtains record information showing the optimization processes. The code execution unit executes the execution code. The variable operation unit obtains the value of a variable based on relations between variables and resources. The output unit displays the obtained value of the variable. The line display unit displays the program or the generated execution code. The line information display unit displays, in line units, information relating to the optimization performed for each line, The operation-possible variable display unit displays, for each line, variables which can be set and referred to in the line.Type: GrantFiled: March 28, 1997Date of Patent: March 9, 1999Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Fumio Sumi, Shuichi Takayama, Junko Sayama, Yoshiyuki Iwamura, Shoji Nagata, Motohide Nishibata
-
Patent number: 4695580Abstract: Novel phenylserine derivatives of the formula: ##STR1## and pharmaceutically acceptable acid addition salts thereof, pharmaceutical compositions, and a process for preparing the compounds are disclosed. The phenylserine derivatives and pharmaceutically acceptable acid addition salts are capable of inhibiting the biosynthesis of leucotrienes and/or antagonistic activity against SRS-A and hence are useful for prophylaxis and treatment of various allergic diseases (e.g. bronchial asthma, allergic nasitis, urticaria), ischemic heart diseases, ischemic encephalopathy, inflammation, or the like.Type: GrantFiled: December 19, 1984Date of Patent: September 22, 1987Assignee: Sumitomo Pharmaceuticals Company, Ltd.Inventors: Naohito Ohashi, Shoji Nagata, Masashi Nakatsuka, Kikuo Ishizumi, Junki Katsube, Shunji Aono, Teruo Sakurama
-
Patent number: 4562263Abstract: A process for producing racemic or optically active threo- or erythro-3-(3,4-dihydroxyphenyl)serine which comprises phthaloylating the amine group of a racemic or optically active threo- or erythro-3-(3,4-dihydroxyphenyl)serine derivative to yield a racemic or optically active threo- or erythro-N-phthaloyl-3-(3,4-dihydroxyphenyl)serine derivative and removing the phthaloyl group from the racemic or optically active threo- or erythro-N-phthaloyl-3-(3,4-dihydroxyphenyl)-serine to yield the racemic or optically active threo- or erythro-3-(3,4-dihydroxyphenyl)serine.Type: GrantFiled: May 25, 1984Date of Patent: December 31, 1985Assignee: Sumitomo Chemical Company, LimitedInventors: Naohito Ohashi, Shoji Nagata, Kikuo Ishizumi
-
Patent number: 4480109Abstract: A process for producing an optically active threo-3-(3,4-dihydroxyphenyl)serine represented by the formula ##STR1## which is useful as a remedy for peripheral orthostatic hypotension or as an antidepressant, which process comprises treating threo-3-(3,4-methylenedioxyphenyl)serine or an N-carbobenzoxy derivative thereof represented by the formula ##STR2## wherein A represents a hydrogen atom or a carbobenzoxy group, with a Lewis acid to form threo-3-(3,4-dihydroxyphenyl)serine or an N-carbobenzoxy derivative thereof represented by the formula ##STR3## wherein A is as defined above, and, if A is a carbobenzoxy group, catalytically reducing the resulting compound of formula [2]; a racemic or optically active threo-N-carbobenzoxy-3-(3,4-methylenedioxyphenyl)serine represented by the formula ##STR4## which is a novel compound useful as an intermediate in the above synthesis; and a process for producing said novel compound.Type: GrantFiled: January 3, 1983Date of Patent: October 30, 1984Assignee: Sumitomo Chemical Company, LimitedInventors: Naohito Ohashi, Shoji Nagata, Kikuo Ishizumi
-
Patent number: 4411836Abstract: This invention relates to a process for the optical resolution of DL-.alpha.-methyl-.beta.-acylthiopropionic acids of the formula [I], ##STR1## wherein R is a lower alkyl group having 1-4 carbon atoms, phenyl or substituted phenyl bearing methyl or chloro radical; a method for the racemization of an optically active .alpha.-methyl-.beta.-acylthiopropionic acid of the formula [Ia], ##STR2## wherein R is as defined above; and a process for the synthesis of captopril of the formula [II], ##STR3## using the D-acid [Ia] as an intermediate.The optically active .alpha.-methyl-.beta.-acylthiopropionic acids are useful as intermediates for the production of medicines, for example, captopril or its congeners.Type: GrantFiled: July 2, 1981Date of Patent: October 25, 1983Assignee: Sumitomo Chemical Company, LimitedInventors: Naohito Ohashi, Shoji Nagata, Junki Katsube
-
Patent number: 4325886Abstract: A process for the optical resolution of DL-.alpha.-methyl-.beta.-acylthiopropionic acid, which comprises contacting a DL-.alpha.-methyl-.beta.-acylthiopropionic acid of the formula, ##STR1## wherein R.sub.1 is acetyl or benzoyl which may be substituted with a C.sub.1 -C.sub.3 alkyl or a halogen atom, with an optically active amine of the formula, ##STR2## wherein R.sub.2 is methyl, isopropyl or isobutyl, to form diastereoisomeric salts, subjecting the formed diastereoisomeric salts to the fractional crystallization in a solvent to separate the D-acid salt from the L-acid salt, and then contacting the individual diastereoisomeric salt with acid to give D-.alpha.-methyl-.beta.-acylthiopropionic acid and L-.alpha.-methyl-.beta.-acylthiopropionic acid, the former being useful as an intermediate for synthesizing captopril useful as an antihypertensive agent.Type: GrantFiled: November 24, 1980Date of Patent: April 20, 1982Assignee: Sumitomo Chemical Company, LimitedInventors: Naohito Ohashi, Hiroyuki Mizote, Isamu Maruyama, Shoji Nagata, Kikuo Ishizumi, Junki Katsube
-
Patent number: 4319040Abstract: Improved process for the production of optical aCTIVE (D- or L-) threo-3-(3,4-dihydroxyphenyl)serine, which comprises subjecting racemic threo-3-(3,4-dibenzyloxyphenyl)-N-carbobenzyloxyserine to optical resolution by using as a resolving reagent an optical active amino alcohol derivative, and then subjecting the resulting optical active (D- or L-) threo-3-(3,4-dibenzyloxyphenyl)-N-carbobenzyloxyserine to hydrogenolysis.Type: GrantFiled: July 18, 1980Date of Patent: March 9, 1982Assignee: Sumitomo Chemical Company, LimitedInventors: Naohito Ohashi, Shoji Nagata, Kikuo Ioshizumi, Junki Katsube