Patents by Inventor Tadashi Okuda
Tadashi 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: 11932025Abstract: A recording method for performing recording on a recording medium includes a processing liquid attaching step of attaching a processing liquid including an aggregating agent to the recording medium, a white ink attaching step of attaching a white ink composition including a white coloring material to the recording medium, and a non-white ink attaching step of attaching a non-white ink composition including a non-white coloring material to the recording medium, in which attachment of the white ink composition and attachment of the non-white ink composition are performed by relative scanning of a recording head and the recording medium, and attachment of the white ink composition and attachment of the non-white ink composition are performed on a scanning region of the recording medium by a relative scanning.Type: GrantFiled: December 23, 2021Date of Patent: March 19, 2024Assignee: SEIKO EPSON CORPORATIONInventors: Tadashi Watanabe, Ippei Okuda
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Patent number: 11937358Abstract: An engine includes a cylinder block including a cylinder wall, a cylinder liner, and a water jacket. The engine further includes a heater including an induction coil disposed in the water jacket. The heater is configured to heat the cylinder wall by generating an eddy current in the cylinder wall by an alternating current flowing through the induction coil.Type: GrantFiled: September 12, 2023Date of Patent: March 19, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tadashi Okuda, Shunsuke Fushiki, Susumu Hashimoto
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Patent number: 9347500Abstract: A first clutch CL1 is disposed between engine Eng and left and right rear wheels RL, RR, and control of disengaging first clutch CL1 is performed by setting line pressure PL as an original pressure and executing F/B control of a piston stroke position. In this FR hybrid vehicle, when disengaging first clutch CL1, line pressure increase control to increase line pressure PL to a value higher than a reference line pressure in advance is started at least before a piston pressure reaches the reference line pressure, and line pressure PL is returned to the reference line pressure when the piston pressure is reduced during this disengagement operation.Type: GrantFiled: October 13, 2010Date of Patent: May 24, 2016Assignee: NISSAN MOTOR CO., LTD.Inventor: Tadashi Okuda
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Patent number: 8868273Abstract: Compatibility between prevention of hunting of engine start and stop and improvement of fuel consumption is achieved during traveling with mode transitions. An apparatus for controlling a hybrid vehicle includes an engine, a motor-generator, a first clutch and a mode transition control means. The motor-generator is disposed in a drive system (power train) between engine and tire wheels to perform a start of the engine and drive for the tire wheels according to motor acceleration and power generation according to regeneration. The first clutch switches between an HEV mode and an EV mode. Mode transition control means implements a delay time from a time at which an engine stop allowance condition is established to a time at which a mode transition from the HEV mode to the EV mode is started in a high vehicle speed area that is higher than a delay time in another vehicle speed area.Type: GrantFiled: July 19, 2011Date of Patent: October 21, 2014Assignee: Nissan Motor Co., Ltd.Inventors: Munetoshi Ueno, Tadashi Okuda, Noboru Kudo
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Patent number: 8838317Abstract: Provided is a hybrid-vehicle control device that can continue high-speed driving, without transitioning to the HEV mode, by raising the motor torque limit during driving in the EV mode. The hybrid-vehicle control device includes: an engine; a motor that starts the engine and that drives driving wheels; a first clutch that switches between the HEV mode and the EV mode; an automatic transmission; and an electric-vehicle mode control means. The smaller the transmission ratio of the transmission is during driving in the EV mode, the smaller the value of the engine start torque, which is reserved for transitioning to the HEV mode, is made by the electric-vehicle mode control means.Type: GrantFiled: July 20, 2011Date of Patent: September 16, 2014Assignee: Nissan Motor Co., Ltd.Inventor: Tadashi Okuda
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Publication number: 20130158766Abstract: Provided is a hybrid-vehicle control device that can continue high-speed driving, without transitioning to the HEV mode, by raising the motor torque limit during driving in the EV mode. The hybrid-vehicle control device includes: an engine; a motor that starts the engine and that drives driving wheels; a first clutch that switches between the HEV mode and the EV mode; an automatic transmission; and an electric-vehicle mode control means. The smaller the transmission ratio of the transmission is during driving in the EV mode, the smaller the value of the engine start torque, which is reserved for transitioning to the HEV mode, is made by the electric-vehicle mode control means.Type: ApplicationFiled: July 20, 2011Publication date: June 20, 2013Applicant: NISSAN MOTOR CO., LTD.Inventor: Tadashi Okuda
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Publication number: 20130124026Abstract: Compatibility between prevention of hunting of engine start and stop and improvement of fuel consumption is achieved during traveling with mode transitions. An apparatus for controlling a hybrid vehicle includes an engine, a motor-generator, a first clutch and a mode transition control means. The motor-generator is disposed in a drive system (power train) between engine and tire wheels to perform a start of the engine and drive for the tire wheels according to motor acceleration and power generation according to regeneration. The first clutch switches between an HEV mode and an EV mode. Mode transition control means implements a delay time from a time at which an engine stop allowance condition is established to a time at which a mode transition from the HEV mode to the EV mode is started in a high vehicle speed area that is higher than a delay time in another vehicle speed area.Type: ApplicationFiled: July 19, 2011Publication date: May 16, 2013Applicant: NISSAN MOTOR CO., LTD.Inventors: Munetoshi Ueno, Tadashi Okuda, Noboru Kudo
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Publication number: 20120199437Abstract: A first clutch CL1 is disposed between engine Eng and left and right rear wheels RL, RR, and control of disengaging first clutch CL1 is performed by setting line pressure PL as an original pressure and executing F/B control of a piston stroke position. In this FR hybrid vehicle, when disengaging first clutch CL1, line pressure increase control to increase line pressure PL to a value higher than a reference line pressure in advance is started at least before a piston pressure reaches the reference line pressure, and line pressure PL is returned to the reference line pressure when the piston pressure is reduced during this disengagement operation.Type: ApplicationFiled: October 13, 2010Publication date: August 9, 2012Inventor: Tadashi Okuda
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Patent number: 8096693Abstract: A light guide plate includes: a plate surrounded by two main surfaces and a plurality of end surfaces connecting the main surfaces, one of the end surfaces designated as an entrance surface, one of the main surfaces designated as a reflection surface; a first reflection element provided in a first region of the reflection surface separated from the entrance surface, and configured to reflect a light incident from the entrance surface in a first angle with respect to the reflection surface; and a second reflection element provided in a second region of the reflection surface between the entrance surface and the first region, and configured to reflect the light in a second angle different from the first angle with respect to the reflection surface.Type: GrantFiled: October 31, 2008Date of Patent: January 17, 2012Assignee: Hitachi Chemical Co., Ltd.Inventors: Masato Taya, Tokutarou Komatsu, Yasushi Sugimoto, Tadashi Okuda, Teruo Teshima
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Publication number: 20100220498Abstract: A surface light source device is disclosed that provides greater light condensation in the frontal direction and higher luminance in comparison to a conventional surface light source device. Disclosed is a surface light source device providing a light source, a light guide having at least one of the side surfaces thereof as an incident surface and an outgoing surface substantially perpendicular to the incident surface, and at least two prism sheets, in which the surfaces formed by the prisms of the prism sheets are arranged so as to face upward, moreover the surfaces of the sides opposing the surfaces formed by the prisms of the prism sheets are arranged substantially parallel to the outgoing surface of the light guide.Type: ApplicationFiled: May 15, 2006Publication date: September 2, 2010Inventors: Yasuhiko Awano, Tokutaro Komatsu, Masato Taya, Yasushi Sugimoto, Tadashi Okuda, Teruo Teshima
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Patent number: 7784575Abstract: A hybrid vehicle drive control system is configured to perform engine startup when switching from an electric drive mode to a hybrid drive mode, without creating a sense of output torque loss. In particular, a controller selectively controls a first clutch disposed between the engine and the motor/generator and a second clutch disposed between the motor/generator and a drive wheel to switch between an electric drive mode in which the first clutch is released and the second clutch is engaged, and a hybrid drive mode in which both the first and second clutches are engaged. The controller sets the second torque transfer capacity to a value that is more than zero and less than the target motor/generator torque of the motor/generator when switching from the electric drive mode to the hybrid drive mode and when starting the engine.Type: GrantFiled: November 6, 2006Date of Patent: August 31, 2010Assignee: Nissan Motor Co., Ltd.Inventors: Tsuyoshi Yamanaka, Kazuyuki Kouno, Munetoshi Ueno, Tadashi Okuda, Shinichiro Joe, Taiichi Onoyama, Terumasa Hidaka, Haruhisa Tsuchikawa, Ken Ito, Kazutaka Adachi
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Patent number: 7766107Abstract: An engine of a hybrid vehicle is lift started by reducing a rotational speed of a motor/generator of the hybrid vehicle by adjusting a gearshift ratio of a transmission coupled to the motor/generator, and engaging a clutch to couple the engine, while in a stopped state, to the rotating motor/generator for imparting the rotation to the engine.Type: GrantFiled: September 7, 2006Date of Patent: August 3, 2010Assignee: Nissan Motor Co., Ltd.Inventors: Shinichiro Joe, Tadashi Okuda
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Patent number: 7665876Abstract: A backlight unit includes: light guide plate surrounded by main surfaces and end surfaces, one end surface facing a light source designated as entrance surface, one main surface designated as emitting surface; first prism sheet provided above the light guide plate, having first prism columns on a top surface and second prism columns on a bottom surface, each first prism column has first ridge line parallel or perpendicular to the entrance surface, each second prism column has second ridge line extending in a different direction from the first ridge line; second prism sheet provided above the first prism sheet, having third prism columns abutting each other on a top surface, each third prism column has third ridge line extending in a direction different from the first and second ridge lines; and reflection sheet facing the light guide plate below the light guide plate.Type: GrantFiled: October 28, 2008Date of Patent: February 23, 2010Assignee: Hitachi Chemical Co., Ltd.Inventors: Masato Taya, Tokutarou Komatsu, Yasushi Sugimoto, Tadashi Okuda, Teruo Teshima
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Publication number: 20090147532Abstract: A backlight unit includes: light guide plate surrounded by main surfaces and end surfaces, one end surface facing a light source designated as entrance surface, one main surface designated as emitting surface; first prism sheet provided above the light guide plate, having first prism columns on a top surface and second prism columns on a bottom surface, each first prism column has first ridge line parallel or perpendicular to the entrance surface, each second prism column has second ridge line extending in a different direction from the first ridge line; second prism sheet provided above the first prism sheet, having third prism columns abutting each other on a top surface, each third prism column has third ridge line extending in a direction different from the first and second ridge lines; and reflection sheet facing the light guide plate below the light guide plate.Type: ApplicationFiled: October 28, 2008Publication date: June 11, 2009Inventors: Masato Taya, Tokutarou Komatsu, Yasushi Sugimoto, Tadashi Okuda, Teruo Teshima
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Publication number: 20090129056Abstract: A light guide plate includes: a plate surrounded by two main surfaces and a plurality of end surfaces connecting the main surfaces, one of the end surfaces designated as an entrance surface, one of the main surfaces designated as a reflection surface; a first reflection element provided in a first region of the reflection surface separated from the entrance surface, and configured to reflect a light incident from the entrance surface in a first angle with respect to the reflection surface; and a second reflection element provided in a second region of the reflection surface between the entrance surface and the first region, and configured to reflect the light in a second angle different from the first angle with respect to the reflection surface.Type: ApplicationFiled: October 31, 2008Publication date: May 21, 2009Inventors: Masato Taya, Tokutarou Komatsu, Yasushi Sugimoto, Tadashi Okuda, Teruo Teshima
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Publication number: 20070102208Abstract: A hybrid vehicle control system is configured to use automatic braking to compensate for an excess or deficiency of a braking force available from the power train of a hybrid vehicle that occurs when the hybrid vehicle switches from an electric drive (EV) mode to a hybrid drive (HEV) mode when the accelerator pedal depressing amount is detected as being substantially zero. In particular, hybrid vehicle control system determines whether a power train braking force from the power train is sufficient to achieve a target braking force. If the power train braking force is sufficient to achieve the target braking force when an accelerator pedal depressing amount is detected as being substantially zero, then a wheel brake is activated to apply a wheel braking force against a wheel of the vehicle to maintain the target braking force.Type: ApplicationFiled: November 6, 2006Publication date: May 10, 2007Applicant: Nissan Motor Co., Ltd.Inventors: Tadashi Okuda, Tsuyoshi Yamanaka, Takeshi Hirata, Koichi Hayasaki
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Publication number: 20070102207Abstract: A hybrid vehicle drive control system is configured to perform engine startup when switching from an electric drive mode to a hybrid drive mode, without creating a sense of output torque loss. In particular, a controller selectively controls a first clutch disposed between the engine and the motor/generator and a second clutch disposed between the motor/generator and a drive wheel to switch between an electric drive mode in which the first clutch is released and the second clutch is engaged, and a hybrid drive mode in which both the first and second clutches are engaged. The controller sets the second torque transfer capacity to a value that is more than zero and less than the target motor/generator torque of the motor/generator when switching from the electric drive mode to the hybrid drive mode and when starting the engine.Type: ApplicationFiled: November 6, 2006Publication date: May 10, 2007Applicant: Nissan Motor Co., Ltd.Inventors: Tsuyoshi Yamanaka, Kazuyuki Kouno, Munetoshi Ueno, Tadashi Okuda, Shinichiro Joe, Taiichi Onoyama, Terumasa Hidaka, Haruhisa Tsuchikawa, Ken Itou, Kazutaka Adachi
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Publication number: 20070056784Abstract: An engine of a hybrid vehicle is lift started by reducing a rotational speed of a motor/generator of the hybrid vehicle by adjusting a gearshift ratio of a transmission coupled to the motor/generator, and engaging a clutch to couple the engine, while in a stopped state, to the rotating motor/generator for imparting the rotation to the engine.Type: ApplicationFiled: September 7, 2006Publication date: March 15, 2007Inventors: Shinichiro Joe, Tsuyoshi Yamanaka, Tadashi Okuda, Kazutaka Adachi, Ken Ito, Koichi Hayasaki
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Publication number: 20070056783Abstract: An engine of a hybrid vehicle is lift started by reducing a rotational speed of a motor/generator of the hybrid vehicle by adjusting a gearshift ratio of a transmission coupled to the motor/generator, and engaging a clutch to couple the engine, while in a stopped state, to the rotating motor/generator for imparting the rotation to the engine.Type: ApplicationFiled: September 7, 2006Publication date: March 15, 2007Applicant: Nissan Motor Co., Ltd.Inventors: Shinichiro Joe, Tadashi Okuda
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Patent number: 4702555Abstract: An objective lens drive unit including a bobbin wound with driving coils and having mounted thereon a lens for transmitting a light beam which is controlled by drive currents flowing through the coils is used for controlling the focussing/tracking of the light beam on a recording medium. The bobbin comprises a hole mounting the objective lens, first recesses formed in opposed side walls of the bobbin substantially in parallel with the mounting hole for accommodating one of the coils wound substantially perpendicularly to the mounting hole, notches formed in the first recesses parallel with the mounting hole for accommodating passing terminal end/start portions of the coil, and second recesses formed along two opposed sides of the opposite side walls for accommodating the other coils wound so as to intersect each other at the other pair of opposite side walls of the bobbin.Type: GrantFiled: May 8, 1985Date of Patent: October 27, 1987Assignee: Hitachi, Ltd.Inventors: Akira Iguma, Tadashi Okuda, Kouichi Ieki, Toshio Sasamoto