Patents by Inventor Kouichi Okuda
Kouichi Okuda 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: 11592057Abstract: A bearing device includes a rotational shaft; a first outer ring; a second outer ring; first balls; second balls disposed; and a C-spacer and a second spacer. ?>?d is satisfied, where ?d represents a difference between an inside diameter of the second spacer at an end portion on a second side and an outside diameter of a shaft outer circumferential face, and ? represents a half of a difference between a diameter of a cylindrical face of the C-spacer on an outer circumferential side and a diameter of the cylindrical face of the C-spacer on an inner circumferential side.Type: GrantFiled: September 23, 2021Date of Patent: February 28, 2023Assignee: JTEKT CORPORATIONInventors: Jun Matsunami, Kouichi Okuda
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Publication number: 20220099140Abstract: A bearing device includes a rotational shaft; a first outer ring; a second outer ring; first balls; second balls disposed; and a C-spacer and a second spacer. ?>?d is satisfied, where ?d represents a difference between an inside diameter of the second spacer at an end portion on a second side and an outside diameter of a shaft outer circumferential face, and a represents a half of a difference between a diameter of a cylindrical face of the C-spacer on an outer circumferential side and a diameter of the cylindrical face of the C-spacer on an inner circumferential side.Type: ApplicationFiled: September 23, 2021Publication date: March 31, 2022Applicant: JTEKT CORPORATIONInventors: Jun MATSUNAMI, Kouichi OKUDA
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Patent number: 10962107Abstract: A control device for a vehicle includes an electronic control unit configured to perform an automatic driving control, to determine whether there is a possibility that a start control of an engine and a gear shift control of an automatic transmission are concurrently executed in a future traveling under the automatic driving control, during execution of the automatic driving control, and to first execute one control of the start control of the engine and the gear shift control of the automatic transmission in the future traveling and execute the other control after the one control finishes, when the electronic control unit determines that there is the possibility that the start control of the engine and the gear shift control of the automatic transmission are concurrently executed in the future traveling under the automatic driving control.Type: GrantFiled: December 30, 2019Date of Patent: March 30, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shuma Naito, Atsushi Tabata, Tetsuya Kono, Kouichi Okuda, Kota Fujii
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Publication number: 20200256460Abstract: A control device for a vehicle includes an electronic control unit configured to perform an automatic driving control, to determine whether there is a possibility that a start control of an engine and a gear shift control of an automatic transmission are concurrently executed in a future traveling under the automatic driving control, during execution of the automatic driving control, and to first execute one control of the start control of the engine and the gear shift control of the automatic transmission in the future traveling and execute the other control after the one control finishes, when the electronic control unit determines that there is the possibility that the start control of the engine and the gear shift control of the automatic transmission are concurrently executed in the future traveling under the automatic driving control.Type: ApplicationFiled: December 30, 2019Publication date: August 13, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shuma NAITO, Atsushi TABATA, Tetsuya KONO, Kouichi OKUDA, Kota FUJII
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Patent number: 9670971Abstract: A power transmission unit for a vehicle comprises: a motor arranged on an output side of an engine coaxially therewith in a housing adjacent to an outer face of the engine; an end cover arranged in the housing to cover an end portion of the motor to protect from the engine; a rotary shaft extending coaxially with the motor to be connected to an output shaft of the engine while penetrating through the end cover; and an engagement device disposed on an outer circumferential side of the rotary shaft between the motor and the engine to selectively restrict a rotation of the rotary shaft. A sub-cover to which the rotary shaft penetrates is attached to an end face of the end cover and a chamber is hermetically enclosed by the sub-cover, the end cover, and the rotary shaft. The engagement device is held in the housing.Type: GrantFiled: December 25, 2013Date of Patent: June 6, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kouichi Okuda, Ryuji Ibaraki, Yuji Yasuda, Atsushi Tabata, Toshiki Kanada, Isao Sato, Tatsuya Imamura
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Patent number: 9604530Abstract: A drive system for a hybrid vehicle, the drive system includes an engine (1), a rotary machine (MG1), a differential unit (20), and a transmission unit (10). The rotary machine (MG1) is arranged coaxially with the engine (1). The differential unit (20) connects the engine (1) and the rotary machine (MG1) to a drive wheel side. The differential unit (20) is arranged coaxially with the engine (1) and the rotary machine (MG1). The differential unit (20) is arranged between the engine (1) and the rotary machine (MG2). The transmission unit (10) changes rotation of the engine in speed and transmits the rotation to the differential unit (20). The transmission unit (10) is arranged coaxially with the engine (1), the rotary machine (MG1) and the differential unit (20). The rotary machine (MG1) and the differential unit (20) are arranged between the transmission unit (10) and the engine (1).Type: GrantFiled: July 16, 2014Date of Patent: March 28, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keisuke Omuro, Atsushi Tabata, Ryuji Ibaraki, Yuji Yasuda, Isao Sato, Toshiki Kanada, Tatsuya Imamura, Kouichi Okuda, Masafumi Yamamoto, Keita Imai
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Patent number: 9457795Abstract: A vehicle control device is configured to select a single motor running, a multiple motor running and an engine running, such that a level of a charging capacity of an electric storage device in which the multiple motor running is selectable is higher than a level of the charging capacity in which the single motor running is selectable. During the single motor running performed with the charging capacity being equal to or greater than a first threshold value, the control device is configured, upon increase of the drive force requested by a driver of the vehicle, to select the multiple motor running when the charging capacity is equal to or greater than a second threshold value that is higher than the first threshold value, and to select the engine running when the charging capacity of the electric storage device is less than the second threshold value.Type: GrantFiled: March 26, 2012Date of Patent: October 4, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keita Imai, Tatsuya Imamura, Kouichi Okuda, Tooru Matsubara, Takeshi Kitahata, Kenta Kumazaki, Yasuhiro Hiasa, Shunya Kato, Atsushi Tabata
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Publication number: 20160159212Abstract: A drive system for a hybrid vehicle, the drive system includes an engine (1), a rotary machine (MG1), a differential unit (20), and a transmission unit (10). The rotary machine (MG1) is arranged coaxially with the engine (1). The differential unit (20) connects the engine (1) and the rotary machine (MG1) to a drive wheel side. The differential unit (20) is arranged coaxially with the engine (1) and the rotary machine (MG1). The differential unit (20) is arranged between the engine (1) and the rotary machine (MG2). The transmission unit (10) changes rotation of the engine in speed and transmits the rotation to the differential unit (20). The transmission unit (10) is arranged coaxially with the engine (1), the rotary machine (MG1) and the differential unit (20). The rotary machine (MG1) and the differential unit (20) are arranged between the transmission unit (10) and the engine (1).Type: ApplicationFiled: July 16, 2014Publication date: June 9, 2016Applicant: Toyota Jidosha Kabushiki KaishaInventors: Keisuke OMURO, Atsushi TABATA, Ryuji IBARAKI, Yuji YASUDA, Isao SATO, Toshiki KANADA, Tatsuya IMAMURA, Kouichi OKUDA, Masafumi YAMAMOTO, Keita IMAI
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Publication number: 20150328974Abstract: A power transmission unit for a vehicle comprises: a motor arranged on an output side of an engine coaxially therewith in a housing adjacent to an outer face of the engine; an end cover arranged in the housing to cover an end portion of the motor to protect from the engine; a rotary shaft extending coaxially with the motor to be connected to an output shaft of the engine while penetrating through the end cover; and an engagement device disposed on an outer circumferential side of the rotary shaft between the motor and the engine to selectively restrict a rotation of the rotary shaft. A sub-cover to which the rotary shaft penetrates is attached to an end face of the end cover and a chamber is hermetically enclosed by the sub-cover, the end cover, and the rotary shaft. The engagement device is held in the housing.Type: ApplicationFiled: December 25, 2013Publication date: November 19, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA1Inventors: Kouichi OKUDA, Ryuji IBARAKI, Yuji YASUDA, Atsushi TABATA, Toshiki KANADA, Isao SATO, Tatsuya IMAMURA
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Publication number: 20150046011Abstract: A control device of a vehicle is configured to select motor running by one motor, motor running by two motors, and engine running. A charging capacity of an electric storage device allowing selection of the motor running by two motors is higher than a charging capacity allowing selection of the motor running by one motor. In the motor running by two motors and the engine running, a drive force larger than in the motor running by one motor is generated. When the motor running by one motor is performed with a charging capacity equal to or greater than a first threshold value, and a driver's drive request amount is increased, if the charging capacity is equal to or greater than a second threshold value higher than the first threshold value, the motor running by two motors is selected, while if the charging capacity is less than the second threshold value, the engine running is selected.Type: ApplicationFiled: March 26, 2012Publication date: February 12, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keita Imai, Tatsuya Imamura, Kouichi Okuda, Tooru Matsubara, Takeshi Kitahata, Kenta Kumazaki, Yasuhiro Hiasa, Shunya Kato, Atsushi Tabata
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Publication number: 20140180441Abstract: Provided is a control device of a vehicle, the vehicle having an electric motor and an engine. The control device includes an operating device and a controller. The operating device is configured to be selected a running capability of the vehicle. The controller configured to increase a running capability to be achieved using the electric motor alone, in a case where the vehicle travels using the electric motor alone according to the selected running capability, as compared with a case where the vehicle travels using the electric motor alone and the running capability is not selected.Type: ApplicationFiled: December 18, 2013Publication date: June 26, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yasuhiro HIASA, Atsushi TABATA, Tooru MATSUBARA, Takeshi KITAHATA, Tatsuya IMAMURA, Kenta KUMAZAKI, Kouichi OKUDA, Masafumi YAMAMOTO, Keita IMAI, Keisuke OMURO
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Publication number: 20080206079Abstract: A touchdown bearing device includes an outer ring fixed to a housing, an inner ring radially opposed to the outer ring, an intermediate ring radially interposed between the outer ring and the inner ring, a first ball interposed between the outer ring and the intermediate ring, and a second ball interposed between the intermediate ring and the inner ring. The touchdown bearing device is configured so that when a magnetic bearing normally operate, a rotary shaft and the inner ring are brought into a noncontact state, and that meanwhile, when the magnetic bearing does not normally operate, the rotary shaft is supported by the inner ring so as to support the rotary shaft against the housing.Type: ApplicationFiled: February 26, 2008Publication date: August 28, 2008Applicant: JTEKT CorporationInventors: Kouichi Okuda, Osamu Higashimoto
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Patent number: 7251441Abstract: A developing apparatus includes a developer carrying member for carrying a developer including one component magnetic toner to develop an electrostatic image formed on an image bearing member. The developer carrying member includes an elastic member contactable to the image bearing member; magnetic field generating means, for attracting the developer to the developer carrying member, and a regulating member for regulating an amount of the developer carried on the developer carrying member. The developer is regulated by the regulating member and applied on the developer carrying member at 5-16 g/mk2. At a position where the regulating member is contacted to the developer carrying member, a magnetic flux density B generated by the magnetic field generating means, and a component Br of the magnetic flux density B normal to a surface of the developer carrying member, satisfy, |Br|/|B|?0.5.Type: GrantFiled: March 29, 2005Date of Patent: July 31, 2007Assignee: Canon Kabushiki KaishaInventors: Kazunari Hagiwara, Kouichi Okuda, Yasushi Shimizu, Kenya Ogawa, Hikaru Osada, Shuji Moriya
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Patent number: 7239831Abstract: An image forming apparatus includes an image bearing member; a charging device for electrically charging the image bearing member; a rotatable developer carrying member for carrying a developer to develop an electrostatic image formed on the image bearing member with the developer, the developer carrying member being supplied with a developing bias voltage including an AC voltage; non-rotatable magnetic field generating device, disposed inside the developer carrying member, for magnetically attracting the developer on the developer carrying member, wherein the developer carrying member has a surface elastic layer, and the developer carrying member is press-contacted to the image bearing member, and the developer is one component magnetic toner, and a maximum value of an absolute value of the developing bias voltage |V|max and a surface potential of the image bearing member charge by the charging device is Vd(V), satisfy, |V|max=|Vd|.Type: GrantFiled: December 15, 2004Date of Patent: July 3, 2007Assignee: Canon Kabushiki KaishaInventors: Kazunari Hagiwara, Kouichi Okuda, Yasunori Chigono, Yasushi Shimizu, Hikaru Osada, Shuji Moriya
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Patent number: 7233758Abstract: A developing device includes a rotatable developer carrying member for carrying a developer to develop an electrostatic image formed on an image bearing member with the developer; non-rotatable magnetic field generating means, disposed inside the developer carrying member, for magnetically attracting the developer on the developer carrying member; a regulating member for regulating an amount of the developer carried on the developer carrying member, wherein the developer carrying member is provided with a surface elastic layer, and the developer carrying member is press-contacted to the image bearing member, and wherein, the developer is an one component magnetic toner having an average circularity not less than 0.965, and an amount of the developer per unit area of the developer regulated by the regulating member is 5-14 g/m2, and an amount of electric charge thereof is 10-50 ?C/g.Type: GrantFiled: December 15, 2004Date of Patent: June 19, 2007Assignee: Canon Kabushiki KaishaInventors: Hikaru Osada, Kouichi Okuda, Yasushi Shimizu, Yasunori Chigono, Kenya Ogawa, Shuji Moriya, Kazunari Hagiwara
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Publication number: 20050214031Abstract: A developing apparatus includes a developer carrying member for carrying a developer including one component magnetic toner to develop an electrostatic image formed on an image bearing member with the developer, said developer carrying member including an elastic member contactable to the image bearing member; magnetic field generating means, disposed in said developer carrying member, for generating a magnetic field for attracting the developer to said developer carrying member; and a regulating member for regulating an amount of the developer carried on said developer carrying member, wherein an amount, per unit area, of the developer regulated by said regulating member and applied on said developer carrying member is 5-16 g/m2, and at a position where said regulating member is contacted to said developer carrying member, a magnetic flux density B generated by said magnetic field generating means, and a component Br of the magnetic flux density B normal to a surface of said developer carrying member, satisfType: ApplicationFiled: March 29, 2005Publication date: September 29, 2005Applicant: Canon Kabushiki KaishaInventors: Kazunari Hagiwara, Kouichi Okuda, Yasushi Shimizu, Kenya Ogawa, Hikaru Osada, Shuji Moriya
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Publication number: 20050196201Abstract: An image forming apparatus includes an image bearing member; charging means for electrically charging the image bearing member; a rotatable developer carrying member for carrying a developer to develop an electrostatic image formed on the image bearing member with the developer, the developer carrying member being supplied with a developing bias voltage comprising an AC voltage; non-rotatable magnetic field generating means, disposed inside the developer carrying member, for magnetically attracting the developer on the developer carrying member, wherein the developer carrying member has a surface elastic layer, and the developer carrying member is press-contacted to the image bearing member, and the developer is one component magnetic toner, and a maximum value of an absolute value of the developing bias voltage |V| max (V) and a surface potential of the image bearing member charge by the charging means is Vd global purposes V), satisfy, |V|max?|Vd|.Type: ApplicationFiled: December 15, 2004Publication date: September 8, 2005Applicant: Canon Kabushiki KaishaInventors: Kazunari Hagiwara, Kouichi Okuda, Yasunori Chigono, Yasushi Shimizu, Hikaru Osada, Shuji Moriya
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Publication number: 20050152718Abstract: A developing device includes a rotatable developer carrying member for carrying a developer to develop an electrostatic image formed on an image bearing member with the developer; non-rotatable magnetic field generating means, disposed inside the developer carrying member, for magnetically attracting the developer on the developer carrying member; a regulating member for regulating an amount of the developer carried on the developer carrying member, wherein the developer carrying member is provided with a surface elastic layer, and the developer carrying member is press-contacted to the image bearing member, and wherein, the developer is an one component magnetic toner having an average circularity not less than 0.965, and an amount of the developer per unit area of the developer regulated by the regulating member is 5-14 g/m2, and an amount of electric charge thereof is 10-50 ?C/g.Type: ApplicationFiled: December 15, 2004Publication date: July 14, 2005Applicant: Canon Kabushiki KaishaInventors: Hikaru Osada, Kouichi Okuda, Yasushi Shimizu, Yasunori Chigono, Kenya Ogawa, Shuji Moriya, Kazunari Hagiwara
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Patent number: 6248978Abstract: A heater includes a substrate having a high heat conductivity; a resistive layer on the substrate, for generating heat up on electric power supply; an output electrode on the substrate; and a temperature sensing element having an output portions placed on top of the output electrodes.Type: GrantFiled: June 6, 1996Date of Patent: June 19, 2001Assignee: Canon Kabushiki KaishaInventor: Kouichi Okuda
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Patent number: 6246035Abstract: A heating device suitable for use as a fixing means for fixing a toner image onto a recording medium in, e.g., an electrophotographic image forming apparatus is provided so as to provide images free from image blurring or fixing failure while improving the anti-offset performance. The heating device includes a heating member, and a heat-resistant film having a first surface to be moved relative to and in contact with the heating member and a second surface to be in contact with a member to be heated, so that the member to be heated and the heat-resistant film are moved together over the heating member to heat the member to be heated. The heat-resistant film comprises at least a base layer and an elastic layer, wherein the elastic layer contains a filler exhibiting a thermal conductivity of at least 0.04 cal/cm.sec. °C.Type: GrantFiled: October 12, 1999Date of Patent: June 12, 2001Assignee: Canon Kabushiki KaishaInventor: Kouichi Okuda