Patents by Inventor Takeshi Kotani

Takeshi Kotani 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).

  • Publication number: 20190364716
    Abstract: A mulching machine comprising a machine body that includes a tilling unit performing tilling, a ridge forming unit forming a ridge with the tilled soil, a mulch film laying unit drawing a mulch film from a film roll and laying it over the ridge, and ground wheels supporting the machine body. The tilling unit and the ridge forming unit are arranged in this order from the front in the traveling direction of the mulching machine, and the film roll is positioned such that its center of gravity does not overlap the ground wheels and is located forward of the ground wheels in the traveling direction.
    Type: Application
    Filed: January 15, 2018
    Publication date: December 5, 2019
    Applicant: YANMAR CO., LTD.
    Inventors: Takeshi KISHIMOTO, Kazuyuki KOTANI, Toshikazu KOKUBUNJI, Tadayoshi SUKIGARA, Kazuyoshi TUTIYA
  • Publication number: 20190242382
    Abstract: Provided is an air compressor which helps to attain a proper discharge air temperature and which is superior in energy saving property.
    Type: Application
    Filed: March 24, 2017
    Publication date: August 8, 2019
    Inventors: Masanao KOTANI, Takeshi TSUCHIYA, Ryoji KAWAI, Kotaro CHIBA, Minako KANADA, Sachio SEKIYA
  • Patent number: 10351719
    Abstract: A photo-curable ink contains an oil-based liquid containing a polymerizable compound and a photopolymerization initiator, and an aqueous liquid containing water. When the photo-curable ink is stirred at a rotational speed of 15000 rpm or more for 3 minutes and then allowed to stand at 25° C. for one hour or more, droplets formed with the aqueous liquid are dispersed in the oil-based liquid without layer separation between the oil-based liquid and the aqueous liquid.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: July 16, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeshi Honma, Motokazu Kobayashi, Yoshinori Kotani, Kenichi Iida, Shiori Yonezawa, Kazumi Iwashita, Kaori Kawa
  • Publication number: 20190170143
    Abstract: Provided is a fluid machine configured such that liquid supplied to a working chamber from the outside of the fluid machine is dispersed extensively in the working chamber. This fluid machine is constituted of a screw rotor and a casing for accommodating the screw rotor and is provided with a liquid supply section for supplying liquid into a working chamber from the outside. The liquid supply section is configured so that liquid is dispersed in the longitudinal direction of the tooth groove of the screw rotor rather than in the width direction thereof.
    Type: Application
    Filed: August 22, 2017
    Publication date: June 6, 2019
    Inventors: Kotaro CHIBA, Masahiko TAKANO, Toshikazu HARASHIMA, Kosuke SADAKATA, Kentaro YAMAMOTO, Takeshi TSUCHIYA, Masanao KOTANI, Ryoji KAWAI, Minako KANADA
  • Publication number: 20190136843
    Abstract: Provided is an air compressor improved in terms of reliability by taking into consideration of the condensation of the water vapor in the compressed air.
    Type: Application
    Filed: June 10, 2016
    Publication date: May 9, 2019
    Inventors: Ryoji KAWAI, Masanao KOTANI, Takeshi TSUCHIYA, Kohtaro CHIBA, Minako KANADA
  • Patent number: 9550491
    Abstract: Disclosed is a vehicle control apparatus which can execute a start-up control for improving acceleration performance at the time of starting an internal combustion engine during the running of a hybrid vehicle. When a hybrid ECU determines that a predetermined time has not yet elapsed after termination of the start-up control of the engine, and that the hybrid vehicle is in a high speed, high load condition, but not in a warming-up state, the hybrid ECU sets a value Nupest2 larger than a value Nupest1, that is usually set as a maximum value Krmx of a rise rate of an engine rotational speed.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: January 24, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideki Kamatani, Takeshi Kotani
  • Publication number: 20150039168
    Abstract: Disclosed is a vehicle control apparatus which can execute a start-up control for improving acceleration performance at the time of starting an internal combustion engine during the running of a hybrid vehicle. When a hybrid ECU determines that a predetermined time has not yet elapsed after termination of the start-up control of the engine, and that the hybrid vehicle is in a high speed, high load condition, but not in a warming-up state, the hybrid ECU sets a value Nupest2 larger than a value Nupest1, that is usually set as a maximum value Krmx of a rise rate of an engine rotational speed.
    Type: Application
    Filed: January 4, 2012
    Publication date: February 5, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideki Kamatani, Takeshi Kotani
  • Patent number: 8765300
    Abstract: Provided is a method of manufacturing a battery having an electrode module including: a positive plate having a cathode collector portion formed by attaching a lead member to a cathode substrate made of a foamed metal plate; and a cathode collector plate welded to the cathode collector portion. The method includes: a pre-welding positive plate forming process of forming a pre-welding positive plate, which is the positive plate before welding, such that the pre-welding positive plate has a projection projecting from a pre-welding cathode collector portion, which is the cathode collector portion before welding; and a welding process of melting a pre-welding cathode collector plate to weld it to the projection. In the pre-welding positive plate forming process, the projection is formed into such a shape that the condition that S?1.3W is satisfied, where W and S represent the width and the circumferential length of the projection, respectively.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: July 1, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, Primearth EV Energy Co., Ltd.
    Inventors: Hideo Nakamura, Yoshinori Shibata, Toru Sugiyama, Takahiro Kuhara, Yoshinori Nishio, Takeshi Kotani, Satoshi Yoneyama
  • Patent number: 8177671
    Abstract: To provide a control system capable of setting a various kinds of driving mode, and shifting the driving mode regardless of the rotational speed of the engine.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: May 15, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Kawai, Takeshi Kotani, Junya Mizuno
  • Publication number: 20120052380
    Abstract: Provided is a method of manufacturing a battery having an electrode module including: a positive plate having a cathode collector portion formed by attaching a lead member to a cathode substrate made of a foamed metal plate; and a cathode collector plate welded to the cathode collector portion. The method includes: a pre-welding positive plate forming process of forming a pre-welding positive plate, which is the positive plate before welding, such that the pre-welding positive plate has a projection projecting from a pre-welding cathode collector portion, which is the cathode collector portion before welding; and a welding process of melting a pre-welding cathode collector plate to weld it to the projection. In the pre-welding positive plate forming process, the projection is formed into such a shape that the condition that S?1.3W is satisfied, where W and S represent the width and the circumferential length of the projection, respectively.
    Type: Application
    Filed: August 25, 2011
    Publication date: March 1, 2012
    Inventors: Hideo NAKAMURA, Yoshinori Shibata, Toru Sugiyama, Takahiro Kuhara, Yoshinori Nishio, Takeshi Kotani, Satoshi Yoneyama
  • Patent number: 8091668
    Abstract: A motor vehicle is equipped with an outside air introduction assembly 104 functioning to introduce the outside air into a radiator 92 in an engine cooling system during driving, as well as with an outside air introduction assembly 114 functioning to introduce the outside air into an engine 22 during driving. The motor vehicle is also equipped with shutter plates 106 capable of regulating the amount of the outside air to be introduced by the outside air introduction assembly 104, as well as with shutter plates 116 capable of regulating the amount of the outside air to be introduced by the outside air introduction assembly 114.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: January 10, 2012
    Assignee: Toyoda Jidosha Kabushiki Kaisha
    Inventors: Takashi Amano, Takeshi Kotani
  • Patent number: 7813862
    Abstract: A hybrid vehicle is provided, in which lean limit operation of an engine can be achieved while consumption of electric power of a battery is suppressed when a change of engine torque in the vicinity of a lean limit is suppressed or when an air-fuel ratio is controlled so as to come close to a lean limit during engine operation. The hybrid vehicle, in which an engine, a motor-generator, and a drive wheel are mutually connected via a differential connection unit, includes a control device which maintains an output of the engine at a constant level by increasing/decreasing an engine rotational speed and decreasing/increasing a rotational speed of the motor-generator in accordance with a decrease/increase of the engine torque in the vicinity of the lean limit.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: October 12, 2010
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takeshi Kotani
  • Publication number: 20100203996
    Abstract: To provide a control system capable of setting a various kinds of driving mode, and shifting the driving mode regardless of the rotational speed of the engine.
    Type: Application
    Filed: September 17, 2008
    Publication date: August 12, 2010
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Kawai, Takeshi Kotani, Junya Mizuno
  • Publication number: 20100147611
    Abstract: A motor vehicle is equipped with an outside air introduction assembly 104 functioning to introduce the outside air into a radiator 92 in an engine cooling system during driving, as well as with an outside air introduction assembly 114 functioning to introduce the outside air into an engine 22 during driving. The motor vehicle is also equipped with shutter plates 106 capable of regulating the amount of the outside air to be introduced by the outside air introduction assembly 104, as well as with shutter plates 116 capable of regulating the amount of the outside air to be introduced by the outside air introduction assembly 114.
    Type: Application
    Filed: November 6, 2009
    Publication date: June 17, 2010
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takashi Amano, Takeshi Kotani
  • Publication number: 20080000700
    Abstract: A hybrid vehicle is provided, in which lean limit operation of an engine can be achieved while consumption of electric power of a battery is suppressed when a change of engine torque in the vicinity of a lean limit is suppressed or when an air-fuel ratio is controlled so as to come close to a lean limit during engine operation. The hybrid vehicle in which an engine, a motor-generator, and a drive wheel are mutually connected via differential connection means includes a control device which maintains an output of the engine at a constant level by increasing/decreasing an engine rotational speed and decreasing/increasing a rotational speed of the motor-generator in accordance with a decrease/increase of the engine torque in the vicinity of the lean limit.
    Type: Application
    Filed: September 20, 2005
    Publication date: January 3, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takeshi Kotani
  • Patent number: 6726592
    Abstract: A hybrid vehicle of the present invention includes a brake 62 that fixes a sun gear shaft 31a linked with a sun gear 31 of a power distribution integration mechanism 30, and a clutch 64 that mechanically connects a drive shaft 36 with a motor MG2 and releases the mechanical connection of the drive shaft 36 with the motor MG2. In the case of a relatively low vehicle speed, the power of an engine 22 is subjected to torque conversion by the power distribution integration mechanism and motors MG1 and MG2 and is output to the drive shaft 36, while the brake 62 is in OFF position and the clutch 64 is in ON position. In the case of a relatively high vehicle speed, on the other hand, the power of the engine 22 is directly output to the drive shaft 36, while the brake 62 is in ON position and the clutch 64 is in OFF position.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: April 27, 2004
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takeshi Kotani
  • Publication number: 20030064854
    Abstract: A hybrid vehicle of the present invention includes a brake 62 that fixes a sun gear shaft 31a linked with a sun gear 31 of a power distribution integration mechanism 30, and a clutch 64 that mechanically connects a drive shaft 36 with a motor MG2 and releases the mechanical connection of the drive shaft 36 with the motor MG2. In the case of a relatively low vehicle speed, the power of an engine 22 is subjected to torque conversion by the power distribution integration mechanism and motors MG1 and MG2 and is output to the drive shaft 36, while the brake 62 is in OFF position and the clutch 64 is in ON position. In the case of a relatively high vehicle speed, on the other hand, the power of the engine 22 is directly output to the drive shaft 36, while the brake 62 is in ON position and the clutch 64 is in OFF position.
    Type: Application
    Filed: September 23, 2002
    Publication date: April 3, 2003
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventor: Takeshi Kotani
  • Patent number: 6278195
    Abstract: A power output apparatus includes a planetary gear having a planetary carrier, a sun gear, and a ring gear, an engine having a crankshaft linked with the planetary carrier, a first motor attached to the sun gear, and a second motor attached to the ring gear. In response to an engine operation stop instruction, the power output apparatus stops a fuel injection into the engine and controls the first motor, in order to enable a torque acting in reverse of the rotation of the crankshaft to be output to the crankshaft via the planetary gear and a carrier shaft until the revolving speed of the engine becomes close to zero. This structure allows the revolving speed of the engine to quickly approach zero.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: August 21, 2001
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Katsuhiko Yamaguchi, Masaaki Yamaoka, Takeshi Kotani, Shoichi Sasaki, Toshifumi Takaoka, Hiroshi Kanai
  • Patent number: 6131680
    Abstract: A power output apparatus includes a planetary gear having a planetary carrier, a sun gear, and a ring gear. A crankshaft of an engine is mechanically linked with the planetary carrier, a first motor with the sun gear, and a second motor with the ring gear. A controller drives the second motor with electric power regenerated by the first motor or drives the first motor with electric power regenerated by the second motor, based on a gear ratio of the sun gear to the ring gear of the planetary gear, thereby enabling the power output from the engine to be converted to a desired power and output to a power transmission gear mechanically connected with the ring gear. The engine may be driven at any driving point that can output energy identical with the energy output to the ring gear. This structure allows the engine to be driven at a desired driving point of highest possible efficiency, thereby enhancing the efficiency of the whole apparatus.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: October 17, 2000
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshihide Nii, Shoichi Sasaki, Takeshi Kotani
  • Patent number: RE38790
    Abstract: A power output apparatus 20 includes a clutch motor, an assist motor, and a controller. The clutch motor and the assist motor are controlled by the controller to enable the power output from an engine to a crankshaft 56, and expressed as the product of its revolving speed and torque, to be converted to the power expressed as the product of a revolving speed and a torque of a drive shaft and to be output to the drive shaft. The engine can be driven at an arbitrary driving point defined by a revolving speed and a torque, as long as the energy or power output to the crankshaft is identical. A desired driving point that attains the highest possible efficiency with respect to each amount of output energy is determined in advance. In order to allow the engine to be driven at the desired driving point, the controller controls the clutch motor and the assist motor as well as the fuel injection and the throttle valve position.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: September 6, 2005
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomoharu Maeda, Yoshihide Nii, Shoichi Sasaki, Takeshi Kotani, Eiji Yamada, Yasutomo Kawabata