Patents by Inventor Atsushi Kamada
Atsushi Kamada 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: 20090326767Abstract: A vehicle control apparatus for a vehicle that includes a brake mechanism that produces braking force through the actuation of a first actuator and a shift mechanism that changes the shift position of a transmission through the actuation of a second actuator. The vehicle control apparatus includes: a controller that controls the electric power supplied to the first actuator and that controls the electric power supplied to the second actuator; a first electric power supply unit that supplies electric power to the controller; a second electric power supply unit that supplies electric power to the first actuator; and a third electric power supply unit that supplies electric power to the second actuator.Type: ApplicationFiled: August 31, 2007Publication date: December 31, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Kamada, Yasushi Hanaki, Naoki Taki, Akira Nagasaka, Yoshinobu Nozaki, Akira Nagae
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Publication number: 20090318261Abstract: In a vehicle driving apparatus including a differential mechanism capable of executing a differential action, a control device can make the driving apparatus small-size, improve fuel consumption, and increase output torque. A transmission mechanism can be switched to a continuously variable shifting state and a step variable shifting state, by a switching clutch or a switching brake. Also, with a switch control bringing the switching clutch into a half-engaged state, during an engine startup/running, while the differential portion is allowed to operate as the electrically controlled continuously variable transmission, a reaction force against an engine torque is generated by the half-engaged switching clutch. Thus, the engine torque not less than the torque bearable by a first electric motor can be inputted into the differential portion, thereby increasing the output torque.Type: ApplicationFiled: May 30, 2006Publication date: December 24, 2009Inventors: Atsushi Tabata, Yutaka Taga, Yuji Inoue, Atsushi Kamada
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Patent number: 7618343Abstract: A control apparatus for a vehicular drive system provided with a continuously-variable transmission portion operable as an electrically controlled continuously variable transmission, and a step-variable transmission portion, the continuously-variable transmission portion having a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, and a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel of a vehicle, the control apparatus including a continuous-transmission control device including a first shifting control portion for controlling a speed ratio of the continuously-variable transmission portion, so as to prevent a change of a speed of the engine due to a change of an input speed of the step-variable transmission portion upon a shifting action of the step-variable transmission portion, and second shifting control portion for controlling the speed ratio of the continuously-vType: GrantFiled: May 26, 2006Date of Patent: November 17, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Yuji Inoue, Atsushi Kamada
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Patent number: 7612114Abstract: The present invention provides a compound represented by the following formula (I); [wherein T represents a single bond, a C1-C4 alkylene group which may have a substituent and the like; formula (I-1) represents a single bond or a double bond; A represents a single bond, a bivalent 5- to 14-membered heterocyclic group which may have a substituent and the like; Y represents a single bond and the like; Z represents a methylene group and the like; ring G represents a phenylene group and the like which may condense with a 5- to 6-membered ring and may have a heteroatom; Ra and Rb are the same as or different from each other and represent a hydrogen atom and the like; W represents a single bond and the like; R? represents 1 to 4 independent hydrogen atoms and the like; and R? represents 1 to 4 independent hydrogen atoms and the like] or a salt thereof, or a hydrate thereof.Type: GrantFiled: June 22, 2005Date of Patent: November 3, 2009Assignee: Eisai R&D Management Co., Ltd.Inventors: Shinichi Hamaoka, Noritaka Kitazawa, Kazumasa Nara, Atsushi Sasaki, Atsushi Kamada, Tadashi Okabe
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Patent number: 7612208Abstract: A crystal of a 4-(3-chloro-4-(cyclopropylaminocarbonyl)aminophenoxy)-7-methoxy-6-quinolinecarboxamide hydrochloride, hydrobromide, p-toluenesulfonate, sulfate, methanesulfonate or ethanesulfonate, or a solvate thereof.Type: GrantFiled: December 22, 2004Date of Patent: November 3, 2009Assignee: Eisai R&D Management Co., Ltd.Inventors: Tomohiro Matsushima, Taiju Nakamura, Kazuhiro Yoshizawa, Atsushi Kamada, Yusuke Ayata, Naoko Suzuki, Itaru Arimoto, Takahisa Sakaguchi, Masaharu Gotoda
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Publication number: 20090248265Abstract: A control device for a vehicle drive apparatus that includes a differential mechanism and an electric motor provided in the differential mechanism, which can be miniaturized in structure with improved fuel economy and enabling suppression of occurrence in switching shocks. With a provision of a switching clutch or a switching brake, a shifting mechanism is placed in either a continuously variable shifting state or a step variable shifting state. During a shifting of an automatic shifting portion, an engaging control variable control alters a method of learning an engaging pressure. This allows a rotation speed of a transmitting member to achieve a given variation during the shifting, depending on a continuously variable shifting state and a non-continuously variable shifting state, for thereby providing a balance between an improvement in a feeling and a suppressing of shifting shocks.Type: ApplicationFiled: May 19, 2006Publication date: October 1, 2009Applicant: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Yuji Inoue, Atsushi Kamada
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Publication number: 20090227407Abstract: A control apparatus for a vehicular drive system including a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, and a second electric motor connected to the power transmitting member. The control apparatus, which permits size reduction of the vehicular drive system, or improvements of fuel economy and vehicle drivability, includes a switching clutch or switching brake for switching a the differential mechanism between a continuously-variable shifting state and a step-variable shifting state, to enable the drive system to have both of an advantage of a fuel economy improvement of a transmission the speed ratio of which is electrically variable, and an advantage of high power transmitting efficiency of a gear type power transmitting device.Type: ApplicationFiled: March 15, 2006Publication date: September 10, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Kamada, Atsushi Tabata, Yuji Inoue
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Publication number: 20090215795Abstract: A cyclic amidine derivative represented by the formula: [wherein R1, R2 and R3 represent hydrogen, C1-6 alkyl, aryl-C1-6 alkyl, etc.; R4, R5 and R7 represent hydrogen, C1-6 alkyl, etc.; Z represents 0 or 1; R6 represents hydrogen, C1-6 alkyl, C1-6 alkyloxycarbonyl, etc.; n represents 1 or 2; Y1 represents a single bond, —CH2—, etc.; Y2 represents a single bond, —CO—, etc.; Ar represents hydrogen, a group represented by the formula: [wherein R10-R14 represent hydrogen, C1-6 alkyl, hydroxyl, C1-6 alkoxy, etc., and R11 and R12 or R12 and R13 may bond together to form a 5- to 8-membered heterocycle], etc.] or a salt thereof.Type: ApplicationFiled: July 17, 2008Publication date: August 27, 2009Applicant: EISAI R&D MANAGEMENT CO., LTD.Inventors: Shuichi Suzuki, Makoto Kotake, Mitsuaki Miyamoto, Tetsuya Kawahara, Akiharu Kajiwara, Ieharu Hishinuma, Kazuo Okano, Syuhei Miyazawa, Richard Clark, Fumihiro Ozaki, Nobuaki Sato, Masanobu Shinoda, Atsushi Kamada, Itaru Tsukada, Fumiyoshi Matsuura, Yoshimitsu Naoe, Taro Terauchi, Yoshiaki Oohashi, Osamu Ito, Hiroshi Tanaka, Takashi Musha, Motoji Kogushi, Tsutomu Kawata, Toshiyuki Matsuoka, Hiroko Kobayashi, Ken-ichi Chiba, Akifumi Kimura, Naoto Ono
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Publication number: 20090192316Abstract: An object of the present invention is to provide a process, or the like, suitable for the industrialization of effective deprotection reaction without using a toxic solvent as well as to provide a process, or the like, for preparing a water-soluble azole prodrug effectively. The present invention provides a process for preparing a salt represented by Formula (I); (wherein X represents a fluorine atom bonded at position 4 or position 5 of a phenyl group) comprising the steps of: (a) carrying out a deprotection reaction of a compound represented by Formula (II); (wherein X represents a fluorine atom bonded at position 4 or position 5 of a phenyl group) in the presence of a carbocation scavenger.Type: ApplicationFiled: December 20, 2006Publication date: July 30, 2009Inventors: Manabu Sasho, Keizo Sato, Jun Niijima, Mamoru Miyazawa, Shigeto Negi, Atsushi Kamada
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Patent number: 7566288Abstract: A control apparatus for a vehicular drive system including a continuously-variable transmission portion operable as an electrically controlled continuously variable transmission having a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, and a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel of a vehicle.Type: GrantFiled: May 26, 2006Date of Patent: July 28, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Yuji Inoue, Atsushi Kamada
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Publication number: 20090182149Abstract: Salts of 2-[({4-[(2,2-dimethyl-1,3-dioxan-5-yl)methoxy]-3,5-dimethylpyridin-2-yl}methyl)sulfinyl]-1H-benzimidazole and their crystalline and amorphous forms.Type: ApplicationFiled: October 13, 2006Publication date: July 16, 2009Inventors: Tetsuya Kawahara, Hitoshi Harada, Hiroki Terauchi, Nobuhisa Watanabe, Masato Ueda, Atsushi Kamada, Sachiko Kikuchi, Hiroshi Ishihara, Koichi Koyama
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Patent number: 7549944Abstract: A control apparatus for a vehicular drive system provided with a step-variable transmission portion operable to transmit an output of an engine to a drive wheel of a vehicle and functioning as a step-variable transmission, and an input clutch operable to permit and inhibit an input of a drive force from the engine to the step-variable transmission portion, the control apparatus including an input-clutch control portion operable to reduce a torque capacity of the input clutch, during a shifting action of the step-variable transmission portion, for limiting a torque to be transmitted to the step-variable transmission portion, to a value not larger than a predetermined value.Type: GrantFiled: June 21, 2006Date of Patent: June 23, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Yutaka Taga, Yuji Inoue, Atsushi Kamada
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Publication number: 20090098969Abstract: A miniaturized vehicular drive apparatus is provided with a reduced size in an axial direction without increasing the number of parallel shafts. A first electric motor M1 and a power distributing mechanism (differential portion) 16 are disposed on a first axis CL1, forming a rotational axis of an input rotary member 14, in series starting therefrom and an automatic transmission (transmission portion) 20 is disposed on a second axis CL2 parallel to the first axis CL1. A drive linkage 23 is provided between a power transmitting member 18, acting as a rotary member placed on the first axis CL1 at an end portion thereof in opposition to the input rotary member 14, i.e., in opposition to an engine 8, and a first intermediate shaft (rotary member) 40, disposed on the second axis CL2 at an end portion thereof in opposition to the input rotary member 14, for power transmitting capability. Thus, a power transmitting path is formed in a C-shape, i.e.Type: ApplicationFiled: June 26, 2006Publication date: April 16, 2009Applicant: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Terufumi Miyazaki, Atsushi Kamada, Yutaka Taga
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Publication number: 20090088290Abstract: A vehicle drive apparatus is disclosed having a differential mechanism and an electric motor provided in the differential mechanism for miniaturizing the drive apparatus or improving fuel consumption while suppressing the occurrence of shifting shocks. A switching clutch C0 or switching brake B0 is provided for placing a shifting mechanism 10 in a continuously variable shifting state and a step variable shifting state, enabling the drive apparatus to have combined advantages including a fuel economy improving effect of a transmission, enabled to electrically change a speed ratio, and a high transmitting efficiency of a gear type transmitting device enabled to mechanically transmit drive power.Type: ApplicationFiled: May 19, 2006Publication date: April 2, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Tabata, Yuji Inoue, Atsushi Kamada
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Publication number: 20090082151Abstract: A vehicular drive system including a first electric motor, a power distributing mechanism, and a second electric motor disposed on a first axis, and an automatic transmission portion disposed on a second axis parallel to the first axis, and a power transmitting member at an end of the first axis remote from an input rotary member and a rotary member at an end of the second axis remote from the input rotary member are connected to each other through a drive linkage, thereby a total axial dimension of the first electric motor, power distributing mechanism, and second electric motor and an axial dimension of the automatic transmission portion are substantially equal to each other, whereby the axial dimension of the drive system is reduced. A housing of the vehicular drive system includes mutually separate first, second, third, and fourth casing portions, so the drive system can be easily assembled.Type: ApplicationFiled: June 26, 2006Publication date: March 26, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Tabata, Terufumi Miyazaki, Atsushi Kamada, Yutaka Taga
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Publication number: 20090076694Abstract: A control apparatus for a vehicular drive system arranged to electrically transmit a portion of an output force of an engine through an electric path, which control apparatus is configured to reduce loads of components associated with the electric path and to restrict a temperature rise of the components associated with the electric path, making it possible to reduce the required size of a cooling system.Type: ApplicationFiled: June 14, 2006Publication date: March 19, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Tabata, Yutaka Taga, Yuji Inoue, Atsushi Kamada
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Patent number: 7503870Abstract: A control apparatus for a vehicular drive system including a continuously-variable transmission portion, and a step-variable transmission portion, the continuously variable transmission portion having a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, and a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel of a vehicle, the step-variable transmission portion constituting a part of the power transmitting path, the control apparatus includes a differential-state limiting device provided in the differential mechanism for limiting an operation of the continuously-variable transmission portion, and an electric-motor control device to control a drive-force assisting operation to drive the vehicle during a shifting action of the step-variable transmission portion, differently depending upon whether the continuously-variable transmission portion is placed in a continuously-vType: GrantFiled: May 26, 2006Date of Patent: March 17, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Yuji Inoue, Atsushi Kamada
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Patent number: 7503872Abstract: The present invention is, in a control apparatus for (a) a vehicular drive system including: a continuously-variable transmission portion operable as an electrically controlled continuously variable transmission and having a differential mechanism operable to distribute an output of an engine to a first electric motor and a power transmitting member, and a second electric motor disposed in a power transmitting path between the power transmitting member and a drive wheel of a vehicle; and a transmission portion constituting a part of the power transmitting path, characterized by including: (b) a differential-state limiting device provided in the differential mechanism, and operable to limit a differential function of the differential mechanism, for limiting an operation of the continuously-variable transmission portion as the electrically controlled continuously variable transmission; and (c) electric-motor control means operable to reduce a rotational speed of the engine by using the first electric motor and/Type: GrantFiled: June 7, 2006Date of Patent: March 17, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Tabata, Yuji Inoue, Atsushi Kamada
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Publication number: 20090062064Abstract: A shift control apparatus is provided with a shift intention detecting device that electrically detects a shift intention of a driver; a shift driving device electrically controlled based on the shift intention; a shift mechanism; a first position information detecting device that detects, without contact, position information of the mechanical displacement of the shift mechanism; a shift position determining device that determines the shift position based on the position information; a second position information detecting device that detects the position information in a different way than the first position information detecting device does; a malfunction determining device that determines whether the position information detected by the first position information detecting device is erroneous; and a switching device that switches from control based on the first position information detecting device to control based on the second position information detecting device when it has been determined that the poType: ApplicationFiled: August 27, 2008Publication date: March 5, 2009Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATIONInventors: Atsushi KAMADA, Keiji Hoshino, Shigeru Kamio
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Publication number: 20090048050Abstract: A drive apparatus for vehicle is disclosed having a coupling device (switching clutch B0 or switching brake C0) operative to switch a transmission mechanism 10 between a continuously variable shifting state and a step-variable shifting state with both advantages including improved fuel consumption achieved by a transmission, enabled to electrically control a speed ratio, and increased power transmitting efficiency provided by a gear-type transmitting device in which drive power is mechanically transmitted. With the transmission mechanism 10, switching control means 50 allows a differential portion 11 to be maintained in the continuously variable shifting state or the differential portion 11 is preferentially placed in the continuously variable shifting state during a start-up of an engine.Type: ApplicationFiled: March 3, 2006Publication date: February 19, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsushi Kamada, Atsushi Tabata, Yuji Inoue