Patents by Inventor Mitsuhiro Toyoda
Mitsuhiro Toyoda 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: 20210394586Abstract: To provide a construction machine capable of reducing the time and labor of an operator and reliably preventing deterioration of cooling efficiency of a heat exchanger unit. A construction machine includes a heat exchanger unit having a plurality of heat exchangers, a cooling fan configured to supply cooling air to the heat exchanger unit during a forward rotation thereof, a controller configured to control an operation of the cooling fan, a timer configured to count an operation time period of forward rotation of the cooling fan, and a reverse rotation signal output switch configured to output to the controller a reverse rotation signal for causing the cooling fan to rotate in the reverse direction in response to an applied manual operation.Type: ApplicationFiled: November 19, 2019Publication date: December 23, 2021Applicant: Caterpillar SARLInventors: Keigo HARA, Yutaka YOKOYAMA, Takaaki IMATANI, Mitsuhiro TOYODA, Ken HIRAOKA, Hiroyuki SHIMIZU
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Patent number: 11007878Abstract: An electric vehicle of the present disclosure includes a first electric motor, a second electric motor and a controller. The first electric motor co-rotates with a wheel when the electric vehicle is driven by only a driving torque from the second electric motor. The controller is programmed to increase or decrease the driving torque from the second electric motor in accordance with a driving state of the electric vehicle so as to shift a vehicle speed out of a predetermined low speed range when the electric vehicle is driven by only the driving torque from the second electric motor and the vehicle speed is included within the low speed range.Type: GrantFiled: October 29, 2019Date of Patent: May 18, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya Kamino, Mitsuhiro Toyoda
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Publication number: 20200171959Abstract: An electric vehicle of the present disclosure includes a first electric motor, a second electric motor and a controller. The first electric motor co-rotates with a wheel when the electric vehicle is driven by only a driving torque from the second electric motor. The controller is programmed to increase or decrease the driving torque from the second electric motor in accordance with a driving state of the electric vehicle so as to shift a vehicle speed out of a predetermined low speed range when the electric vehicle is driven by only the driving torque from the second electric motor and the vehicle speed is included within the low speed range.Type: ApplicationFiled: October 29, 2019Publication date: June 4, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya KAMINO, Mitsuhiro TOYODA
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Patent number: 10563738Abstract: A vehicular automatic transmission includes a plurality of engagement devices and a plurality of planetary gear sets. Each of the planetary gear sets includes rotating elements. At least one of the rotating elements of one of the plurality of planetary gear sets is coupled to one of the rotating elements of another planetary gear set or one of the engagement devices, via a spline engagement portion. The rotating elements other than the at least one of the rotating elements coupled via the spline engagement portion is coupled to another rotating element or a non-rotary member directly or via one of the engagement devices. The at least one of the rotating elements coupled via the spline engagement portion is configured to be co-rotated with no torque transmitted via the spline engagement portion, when the automatic transmission is placed in a predetermined gear position as one of the plurality of gear positions.Type: GrantFiled: November 22, 2016Date of Patent: February 18, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masashi Ikemura, Hirofumi Ota, Yasuyuki Hagino, Mitsuhiro Toyoda, Yosuke Michikoshi
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Patent number: 10415214Abstract: Provided are a hydraulic circuit and a work machine capable of improving an initial motion speed of a hydraulic cylinder during a contraction of the hydraulic cylinder and securing a necessary pump flow rate while hydraulic fluid is being accumulated in an accumulator. Hydraulic oil from a head side of a second boom cylinder is regenerated in a first boom cylinder and the second boom cylinder through a second control valve of a regeneration circuit. At the same time, oil from the head side of the first boom cylinder is accumulated to a first accumulator by a pressure accumulating circuit through a first control valve. The hydraulic oil supplied under pressure from a main pump is fed to a rod side of the first boom cylinder by a boom control valve. A bleed-off valve of a bleed-off circuit communicates the first control valve to a tank at the time of initial operation of the first control valve, thereby releasing hydraulic oil from the head end of the first boom cylinder to improve an initial motion speed.Type: GrantFiled: April 20, 2016Date of Patent: September 17, 2019Assignee: Caterpilalr SARLInventors: Kouji Kishida, Mitsuhiro Toyoda, Yoshihiko Hata, Yuya Kanenawa, Shuhei Orimoto, Nobuaki Matoba
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Publication number: 20180142444Abstract: Provided are a hydraulic circuit and a work machine capable of improving an initial motion speed of a hydraulic cylinder during a contraction of the hydraulic cylinder and securing a necessary pump flow rate while hydraulic fluid is being accumulated in an accumulator. Hydraulic oil from a head side of a second boom cylinder is regenerated in a first boom cylinder and the second boom cylinder through a second control valve of a regeneration circuit. At the same time, oil from the head side of the first boom cylinder is accumulated to a first accumulator by a pressure accumulating circuit through a first control valve. The hydraulic oil supplied under pressure from a main pump is fed to a rod side of the first boom cylinder by a boom control valve. A bleed-off valve of a bleed-off circuit communicates the first control valve to a tank at the time of initial operation of the first control valve, thereby releasing hydraulic oil from the head end of the first boom cylinder to improve an initial motion speed.Type: ApplicationFiled: April 20, 2016Publication date: May 24, 2018Applicant: Caterpillar SARLInventors: Kouji KISHIDA, Mitsuhiro TOYODA, Yoshihiko HATA, Yuya KANENAWA, Shuhei ORIMOTO, Nobuaki MATOBA
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Patent number: 9933026Abstract: A vehicle control system for improving vibration suppressing performance and acceleration response is provided. A controller is configured to set the torque transmitting capacity of an engagement device to a first torque transmitting capacity that is smaller than a value required to transmit a peak value of a second drive torque applied to an output shaft of a transmission having the engagement device but greater than a value required to transmit an estimated first drive torque generated by an engine, when the second drive torque is amplified by pulsation of the first drive torque.Type: GrantFiled: January 30, 2017Date of Patent: April 3, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Junichi Shiozaki, Norimi Asahara, Mitsuhiro Toyoda
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Publication number: 20170219029Abstract: A vehicle control system for improving vibration suppressing performance and acceleration response is provided. A controller is configured to set the torque transmitting capacity of an engagement device to a first torque transmitting capacity that is smaller than a value required to transmit a peak value of a second drive torque applied to an output shaft of a transmission having the engagement device but greater than a value required to transmit an estimated first drive torque generated by an engine, when the second drive torque is amplified by pulsation of the first drive torque.Type: ApplicationFiled: January 30, 2017Publication date: August 3, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Junichi SHIOZAKI, Norimi ASAHARA, Mitsuhiro TOYODA
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Publication number: 20170221712Abstract: The present invention provides an efficient heat treatment such as activation treatment of impurities on a substrate such as a thick silicon wafer with large heat capacity by laser annealing. Provided is a laser annealing apparatus 1 for heat-treating a surface of a substrate 30 comprising: a pulse oscillation laser source 10 which generates a pulse laser with gentle rise time and long pulse width; a continuous wave laser source 20 which generates a near-infrared laser for assisting annealing; optical systems 12, 22 which shape and guide beams 15, 25 of the two types of lasers respectively so as to irradiate the surface of the substrate 30 therewith; and a moving device 3 which moves the substrate 30 relatively to the laser beams 15, 25 to allow scanning of the combined irradiation of the two types of laser beams.Type: ApplicationFiled: March 31, 2017Publication date: August 3, 2017Applicant: THE JAPAN STEEL WORKS, LTD.Inventors: Toshio KUDO, Naoyuki KOBAYASHI, Kazuya SANO, Toshiaki SEINO, Mitsuhiro TOYODA
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Publication number: 20170152921Abstract: A vehicular automatic transmission includes a plurality of engagement devices and a plurality of planetary gear sets. Each of the planetary gear sets includes rotating elements. At least one of the rotating elements of one of the plurality of planetary gear sets is coupled to one of the rotating elements of another planetary gear set or one of the engagement devices, via a spline engagement portion. The rotating elements other than the at least one of the rotating elements coupled via the spline engagement portion is coupled to another rotating element or a non-rotary member directly or via one of the engagement devices. The at least one of the rotating elements coupled via the spline engagement portion is configured to be co-rotated with no torque transmitted via the spline engagement portion, when the automatic transmission is placed in a predetermined gear position as one of the plurality of gear positions.Type: ApplicationFiled: November 22, 2016Publication date: June 1, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masashi IKEMURA, Hirofumi OTA, Yasuyuki HAGINO, Mitsuhiro TOYODA, Yosuke MICHIKOSHI
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Patent number: 9664278Abstract: A control device for a vehicle includes a transmission mechanism capable of setting a fixed transmission gear ratio, a continuously variable transmission provided in parallel with the transmission mechanism, and a path switching mechanism for selectively blocking a torque transmission path that includes the transmission mechanism and that is configured to dampen vibration. The control device further includes a clutch mechanism where the continuously variable transmission and the transmission mechanism capable of setting constant transmission gear ratio are arranged in parallel between an input shaft and the output shaft, that selectively connects torque transmission path stretching from an internal combustion engine to drive wheels via transmission mechanism, and one clutch and other clutch are arranged in series, the other clutch is arranged on a relatively downstream side.Type: GrantFiled: June 12, 2013Date of Patent: May 30, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Mitsuhiro Toyoda, Hirofumi Nakada, Michio Yoshida, Daisuke Inoue, Atsushi Ayabe, Motonori Kimura, Akira Hino, Hiroki Kondo, Kenji Matsuo, Takuro Shimazu
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Publication number: 20160131256Abstract: A control device for vehicle is includes: transmission mechanism capable of setting fixed transmission gear ratio; continuously variable transmission provided in parallel with transmission mechanism; and path switching mechanism for selectively blocking torque transmission path that includes transmission mechanism and that is configured to dampen vibration.Type: ApplicationFiled: June 12, 2013Publication date: May 12, 2016Inventors: Mitsuhiro TOYODA, Hirofumi NAKADA, Michio YOSHIDA, Daisuke INOUE, Atsushi AYABE, Motonori KIMURA, Akira HINO, Hiroki KONDO, Kenji MATSUO, Takuro SHIMAZU
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Patent number: 9205735Abstract: A power transmission device of a hybrid vehicle comprises: an electric differential portion having a first rotating element coupled to an engine, a second rotating element coupled to a first rotator, and a third rotating element coupled to a second rotator, the second rotator being disposed in a power transmission path including the third rotating element between the engine and drive wheels, the second rotator having a rotor shaft interposed in series in the power transmission path, a rotor of the second rotator being fixed, and making up a portion of the power transmission path.Type: GrantFiled: November 29, 2011Date of Patent: December 8, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Keita Imai, Koichi Okuda, Mitsuhiro Toyoda, Atsushi Tabata, Sho Mizushino
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Publication number: 20150332923Abstract: The present invention provides an efficient heat treatment such as activation treatment of impurities on a substrate such as a thick silicon wafer with large heat capacity by laser annealing. Provided is a laser annealing apparatus 1 for heat-treating a surface of a substrate 30 comprising: a pulse oscillation laser source 10 which generates a pulse laser with gentle rise time and long pulse width; a continuous wave laser source 20 which generates a near-infrared laser for assisting annealing; optical systems 12, 22 which shape and guide beams 15, 25 of the two types of lasers respectively so as to irradiate the surface of the substrate 30 therewith; and a moving device 3 which moves the substrate 30 relatively to the laser beams 15, 25 to allow scanning of the combined irradiation of the two types of laser beams.Type: ApplicationFiled: May 29, 2015Publication date: November 19, 2015Applicant: THE JAPAN STEEL WORKS, LTD.Inventors: Toshio KUDO, Naoyuki KOBAYASHI, Kazuya SANO, Toshiaki SEINO, Mitsuhiro TOYODA
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Publication number: 20140342872Abstract: A power transmission device of a hybrid vehicle comprises: an electric differential portion having a first rotating element coupled to an engine, a second rotating element coupled to a first rotator, and a third rotating element coupled to a second rotator, the second rotator being disposed in a power transmission path including the third rotating element between the engine and drive wheels, the second rotator having a rotor shaft interposed in series in the power transmission path, a rotor of the second rotator being fixed, and making up a portion of the power transmission path.Type: ApplicationFiled: November 29, 2011Publication date: November 20, 2014Inventors: Keita Imai, Koichi Okuda, Mitsuhiro Toyoda, Atsushi Tabata, Sho Mizushino
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Publication number: 20120234810Abstract: The present invention provides an efficient heat treatment such as activation treatment of impurities on a substrate such as a thick silicon wafer with large heat capacity by laser annealing. Provided is a laser annealing apparatus 1 for heat-treating a surface of a substrate 30 comprising: a pulse oscillation laser source 10 which generates a pulse laser with gentle rise time and long pulse width; a continuous wave laser source 20 which generates a near-infrared laser for assisting annealing; optical systems 12, 22 which shape and guide beams 15, 25 of the two types of lasers respectively so as to irradiate the surface of the substrate 30 therewith; and a moving device 3 which moves the substrate 30 relatively to the laser beams 15, 25 to allow scanning of the combined irradiation of the two types of laser beams.Type: ApplicationFiled: September 9, 2010Publication date: September 20, 2012Applicant: The Japan Steel Works, Ltd.Inventors: Toshio Kudo, Naoyuki Kobayashi, Kazuya Sano, Toshiaki Seino, Mitsuhiro Toyoda
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Publication number: 20100012037Abstract: A substrate transfer apparatus comprising: a plurality of floating-transfer guide plates adjacent to each other with a space, each of guide plate having a plurality of floating gas ejecting holes; a gas supplying source for supplying a floating gas to the guide plates; a tray that is placed on one of the guide plates in order to mount a substrate to be transferred, and that is floated by the floating gas; and a transfer arm for transferring the floated tray to the adjacent other guide plate from the guide plate, wherein the tray includes a main body portion having both side edges parallel to a transfer direction of the tray, and an outward projecting portion that is formed so as to partially project outwardly from at least one of both side edges of the main body portion, and wherein the transfer arm is in contact and engaged with the outward projecting portion when the tray is transferred by the transfer arm.Type: ApplicationFiled: July 15, 2009Publication date: January 21, 2010Inventors: Katsushi Kishimoto, Yusuke Fukuoka, Mitsuhiro Toyoda, Hiroyuki Tadokoro, Yusuke Ozaki
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Publication number: 20070090100Abstract: In the case of forming a scribe line by irradiating a laser in an ultraviolet range in one stroke, the glass bending strength after glass is cut is about 50 MPa or less, and the glass is likely to be subjected to crack damage during use as liquid crystal panel glass or the like. In a glass cutting method in which a portion to be cut of glass 4 is irradiated with a pulse laser 2 in one stroke of relative movement to form a scribe line 7, and then the glass is cut by applying a break force to the scribe line 7, a pulse laser of an ultraviolet range is used as the pulse laser 2, and the pulse laser 2 is irradiated while the pulse laser 2 is being relatively moved so that the total number of pulses at each irradiation portion is in a range of 2,667 to 8,000 pulses, whereby the scribe line 7 is formed to a depth of 1.8 to 6.3% of the thickness of the glass 4.Type: ApplicationFiled: April 22, 2005Publication date: April 26, 2007Inventors: Toshifumi Yonai, Toshio Inami, Hideaki Kusama, Naoyuki Kobayashi, Mitsuhiro Toyoda, Kenichi Omori
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Publication number: 20060246368Abstract: This invention provides masterbatch (MB) comprising at least a colorant and polyester resin, wherein the glass transition temperature (Tg) and the softening point (Sp) of such polyester resin satisfy the correlations defined by formulae (1) and (2): 4Tg?170?Sp?4Tg?110 (1); and 90?Sp?120 (2), and toner using such masterbatch. The toner prepared from such masterbatch comprising base resin having excellent heat resistance and good dispersibility can produce images having stable and even glossiness, brilliant color, and a wide fusing temperature range.Type: ApplicationFiled: January 22, 2004Publication date: November 2, 2006Inventors: Katsuru Matsumoto, Sayaka Fujita, Masahiro Sakai, Toshihiko Murakami, Mitsuhiro Toyoda