Patents by Inventor Ryota IWASAKI
Ryota IWASAKI 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: 11359573Abstract: A control device for an internal combustion engine capable of performing additional injection in addition to regular injection includes an electronic control unit. The electronic control unit is configured to calculate an ignition timing at a predetermined crank angle before a compression top dead center. The electronic control unit is configured to calculate an injection amount of fuel at a predetermined time interval and to calculate an injection amount of the fuel at the predetermined crank angle. The electronic control unit is configured to control the fuel injection valve such that the fuel injection valve additionally injects the fuel in an increase amount before ignition, when the injection amount calculated at the predetermined crank angle is increased due to retardation of the ignition tinting calculated after the fuel in the injection amount calculated at the predetermined time interval is regularly injected.Type: GrantFiled: September 1, 2016Date of Patent: June 14, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryota Iwasaki, Masanao Idogawa, Ryusuke Kuroda
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Patent number: 11021625Abstract: An ink includes a coloring material, an acrylic resin particle, an organic solvent, and water, wherein a solid dry film of the ink has a breaking elongation ratio of 50 percent or more, a storage elastic modulus G? of 1.0×106 Pa or more at 50 degrees C., and a swelling ratio of 40 percent or less to ethylacetate.Type: GrantFiled: June 26, 2019Date of Patent: June 1, 2021Assignee: Ricoh Company, Ltd.Inventors: Ryota Iwasaki, Ryo Miyakoshi, Yuya Hirokawa
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Patent number: 11002208Abstract: An in-vehicle control device carries out fuel cut-off for stopping fuel injection from a fuel injection valve when a prescribed fuel cut-off condition including that a lockup clutch with which a torque converter is equipped is engaged and that an accelerator is off is fulfilled. Besides, the in-vehicle control device performs a fuel cut-off suspension process for carrying out fuel injection from the fuel injection valve and releasing the lockup clutch when there is a request to suspend fuel cut-off with the accelerator off. Also, the in-vehicle control device performs a speed increase process for performing shift control of an automatic transmission such that the rotational speed of a turbine impeller with which the torque converter is equipped becomes higher while the fuel cut-off suspension process is performed than when fuel cut-off is carried out.Type: GrantFiled: November 18, 2019Date of Patent: May 11, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryota Iwasaki, Yoshitsugu Shinohara
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Patent number: 10914256Abstract: An in-vehicle controller prohibits engagement of a lock-up clutch when a temperature of a fluid that actuates the lock-up clutch is lower than a prescribed temperature. In addition, the in-vehicle controller stops fuel injection by a fuel injection valve when fuel cut conditions including such a condition that the lock-up clutch is engaged are established. Under a situation where the temperature of the fluid is lower than the prescribed temperature, in the case where a PM accumulation amount on a filter is equal to or larger than an accumulation amount threshold, the in-vehicle controller executes speed increase processing so as to execute gear shift control of a continuously variable transmission such that a rotational speed of a turbine impeller in a torque converter is increased to be higher than that in a case where the PM accumulation amount is smaller than the accumulation amount threshold.Type: GrantFiled: September 27, 2019Date of Patent: February 9, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryota Iwasaki, Yoshitsugu Shinohara
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Publication number: 20200240343Abstract: An in-vehicle control device carries out fuel cut-off for stopping fuel injection from a fuel injection valve when a prescribed fuel cut-off condition including that a lockup clutch with which a torque converter is equipped is engaged and that an accelerator is off is fulfilled. Besides, the in-vehicle control device performs a fuel cut-off suspension process for carrying out fuel injection from the fuel injection valve and releasing the lockup clutch when there is a request to suspend fuel cut-off with the accelerator off. Also, the in-vehicle control device performs a speed increase process for performing shift control of an automatic transmission such that the rotational speed of a turbine impeller with which the torque converter is equipped becomes higher while the fuel cut-off suspension process is performed than when fuel cut-off is carried out.Type: ApplicationFiled: November 18, 2019Publication date: July 30, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryota IWASAKI, Yoshitsugu SHINOHARA
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Publication number: 20200149488Abstract: An in-vehicle controller prohibits engagement of a lock-up clutch when a temperature of a fluid that actuates the lock-up clutch is lower than a prescribed temperature. In addition, the in-vehicle controller stops fuel injection by a fuel injection valve when fuel cut conditions including such a condition that the lock-up clutch is engaged are established. Under a situation where the temperature of the fluid is lower than the prescribed temperature, in the case where a PM accumulation amount on a filter is equal to or larger than an accumulation amount threshold, the in-vehicle controller executes speed increase processing so as to execute gear shift control of a continuously variable transmission such that a rotational speed of a turbine impeller in a torque converter is increased to be higher than that in a case where the PM accumulation amount is smaller than the accumulation amount threshold.Type: ApplicationFiled: September 27, 2019Publication date: May 14, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryota IWASAKI, Yoshitsugu SHINOHARA
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Patent number: 10603929Abstract: A drying device includes heaters disposed along the direction of conveyance of a recording medium to which liquid is applied, the heaters being configured to heat the recording medium, wherein the recording medium is conveyed in contact with the heaters on a conveyance path including a first path on which the recording medium is conveyed in contact with the heaters for the second time and a second path on which the recording medium is conveyed in contact with the heaters for the second time, wherein a dried film of the liquid formed by the following method has a Martens hardness of 30 N/mm2 or greater at 120 degrees C.: method: the liquid is applied to a glass plate to form a film and the film is dried with a reduced pressure at 100 degrees C. for three hours to obtain the dried film having an average thickness of 5 ?m.Type: GrantFiled: September 13, 2018Date of Patent: March 31, 2020Assignee: Ricoh Company, Ltd.Inventors: Ryota Iwasaki, Hiromi Sakaguchi, Yoshiki Yanagawa, Kaori Toyama, Satoshi Takahashi, Toshihiro Yoshinuma, Ken Onodera, Sho Sawahata, Junji Nakai, Yasuhisa Katoh
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Publication number: 20200002558Abstract: An ink includes a coloring material, an acrylic resin particle, an organic solvent, and water, wherein a solid dry film of the ink has a breaking elongation ratio of 50 percent or more, a storage elastic modulus G? of 1.0×106 Pa or more at 50 degrees C., and a swelling ratio of 40 percent or less to ethylacetate.Type: ApplicationFiled: June 26, 2019Publication date: January 2, 2020Inventors: Ryota Iwasaki, Ryo Miyakoshi, Yuya Hirokawa
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Publication number: 20190084320Abstract: A drying device includes heaters disposed along the direction of conveyance of a recording medium to which liquid is applied, the heaters being configured to heat the recording medium, wherein the recording medium is conveyed in contact with the heaters on a conveyance path including a first path on which the recording medium is conveyed in contact with the heaters for the second time and a second path on which the recording medium is conveyed in contact with the heaters for the second time, wherein a dried film of the liquid formed by the following method has a Martens hardness of 30 N/mm2 or greater at 120 degrees C.: method: the liquid is applied to a glass plate to form a film and the film is dried with a reduced pressure at 100 degrees C. for three hours to obtain the dried film having an average thickness of 5 ?m.Type: ApplicationFiled: September 13, 2018Publication date: March 21, 2019Inventors: Ryota Iwasaki, Hiromi Sakaguchi, Yoshiki Yanagawa, Kaori Toyama, Satoshi Takahashi, Toshihiro Yoshinuma, Ken Onodera, Sho Sawahata, Junji Nakai, Yasuhisa Katoh
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Publication number: 20170058822Abstract: A control device for an internal combustion engine capable of performing additional injection in addition to regular injection includes an electronic control unit. The electronic control unit is configured to calculate an ignition timing at a predetermined crank angle before a compression top dead center. The electronic control unit is configured to calculate an injection amount of fuel at a predetermined time interval and to calculate an injection amount of the fuel at the predetermined crank angle. The electronic control unit is configured to control the fuel injection valve such that the fuel injection valve additionally injects the fuel in an increase amount before ignition, when the injection amount calculated at the predetermined crank angle is increased due to retardation of the ignition tinting calculated after the fuel in the injection amount calculated at the predetermined time interval is regularly injected.Type: ApplicationFiled: September 1, 2016Publication date: March 2, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryota IWASAKI, Masanao IDOGAWA, Ryusuke KURODA