Patents by Inventor Yuji Sakakibara
Yuji Sakakibara 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: 20220168869Abstract: A screwdriver compact in a front-rear direction includes a motor including a stator and a rotor including a rotor shaft extending upward frontward, a switch, a pinion, a clutch operable with the pinion, a bit holder movable in the front-rear direction in front of the clutch, a gear housing accommodating the pinion and the clutch and including front and rear divided parts, a motor housing joined to the gear housing and accommodating the motor, and a resin grip joined to the motor housing and accommodating the switch. The bit holder at a rearward position causes the clutch to be connecting to transmit rotation of the rotor and at a frontward position causes the clutch to be disconnecting to transmit no rotation of the rotor.Type: ApplicationFiled: October 18, 2021Publication date: June 2, 2022Applicant: MAKITA CORPORATIONInventors: Shogo TOMINAGA, Manabu SUGIMOTO, Yuji SAKAKIBARA
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Patent number: 11203106Abstract: A screw driving includes a housing, a motor, a spindle, a locator, a first detecting mechanism and a controller. The locator is mounted on a front end portion of the housing so as to be movable in a front-rear direction relative to the housing and configured to define a depth to which a screw is driven into a workpiece. The first detecting mechanism is configured to detect a position of the locator in the front-rear direction. The controller is configured to control driving of the motor. Rotational driving of the spindle in a forward direction is started in response to the spindle being pressed rearward, and the rotational driving of the spindle in the forward direction is stopped when the first detecting mechanism detects that the locator is disposed in a specified position rearward of a most forward position within a moving range of the locator.Type: GrantFiled: February 19, 2019Date of Patent: December 21, 2021Assignee: MAKITA CORPORATIONInventors: Yuji Sakakibara, Kazuya Kimura, Ryuki Yueda
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Patent number: 10731531Abstract: An internal combustion engine 1 is provided, in an exhaust passage thereof with an electrochemical reactor including: an ion conductive solid electrolyte layer; an anode layer arranged on a surface of the solid electrolyte layer; and a cathode layer arranged on a surface of the solid electrolyte layer and able to hold NOX. The engine includes a current control device for controlling the current supplied to the electrochemical reactor so as to flow from the anode layer through the solid electrolyte layer to the cathode layer. The current control device is configured so as to supply current to the electrochemical reactor at least temporarily while that internal combustion engine is stopped.Type: GrantFiled: April 30, 2019Date of Patent: August 4, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keishi Takada, Tetsuya Sakuma, Hiromasa Nishioka, Hiroshi Otsuki, Hirohito Hirata, Yoshiyuki Sakamoto, Tsuyoshi Hamaguchi, Chika Kato, Yuji Sakakibara, Takashi Kuzuya
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Publication number: 20190345860Abstract: An internal combustion engine 1 is provided, in an exhaust passage thereof with an electrochemical reactor including: an ion conductive solid electrolyte layer; an anode layer arranged on a surface of the solid electrolyte layer; and a cathode layer arranged on a surface of the solid electrolyte layer and able to hold NOX. The engine includes a current control device for controlling the current supplied to the electrochemical reactor so as to flow from the anode layer through the solid electrolyte layer to the cathode layer. The current control device is configured so as to supply current to the electrochemical reactor at least temporarily while that internal combustion engine is stopped.Type: ApplicationFiled: April 30, 2019Publication date: November 14, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keishi TAKADA, Tetsuya SAKUMA, Hiromasa NISHIOKA, Hiroshi OTSUKI, Hirohito HIRATA, Yoshiyuki SAKAMOTO, Tsuyoshi HAMAGUCHI, Chika KATO, Yuji SAKAKIBARA, Takashi KUZUYA
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Publication number: 20190283230Abstract: A screw driving includes a housing, a motor, a spindle, a locator, a first detecting mechanism and a controller. The locator is mounted on a front end portion of the housing so as to be movable in a front-rear direction relative to the housing and configured to define a depth to which a screw is driven into a workpiece. The first detecting mechanism is configured to detect a position of the locator in the front-rear direction. The controller is configured to control driving of the motor. Rotational driving of the spindle in a forward direction is started in response to the spindle being pressed rearward, and the rotational driving of the spindle in the forward direction is stopped when the first detecting mechanism detects that the locator is disposed in a specified position rearward of a most forward position within a moving range of the locator.Type: ApplicationFiled: February 19, 2019Publication date: September 19, 2019Applicant: MAKITA CORPORATIONInventors: Yuji SAKAKIBARA, Kazuya KIMURA, Ryuki YUEDA
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Publication number: 20180201228Abstract: The wiper device includes a first pivot shaft, a first swing lever, a second pivot shaft, a second swing lever, a link rod, a crank arm, and a drive rod. The first swing lever extends from the first pivot shaft in a radial direction of the first pivot shaft. The second swing lever extends from the second pivot shaft in a radial direction of the second pivot shaft. The link rod has a first end connected to a tip part of the first swing lever and a second end connected to a tip part of the second swing lever. The crank arm extends from an output shaft of a motor in a radial direction of this output shaft. The drive rod has a first end connected to a tip part of the crank arm and a second end connected to an intermediate part of the link rod.Type: ApplicationFiled: August 25, 2016Publication date: July 19, 2018Inventors: Hideki Shiratori, Noriyuki Suzuki, Yuji Sakakibara
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Patent number: 9545667Abstract: A casting machine having a furnace body, a first heater, a first surface and pressure means. The furnace body has a melting portion and a holding portion, material being supplied and melted to form the molten metal in the melting portion, the holding portion holding the molten metal which has flowed out from the melting portion. The first heater heats the material supplied to the melting portion to melt it. The first surface is provided on a hearth surface of the melting portion and has concavities and convexities, the material to be heated being laid on the first surface.Type: GrantFiled: March 28, 2014Date of Patent: January 17, 2017Assignee: DENSO CORPORATIONInventors: Kazumasa Yasuda, Yuji Sakakibara, Naoto Uesaka, Atsushi Yamashita
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Publication number: 20150290791Abstract: An electric tool may include a drive main body configured to accommodating an electric motor. A handle may extend downwards from a lower portion of the chive main body. A middle finger positioning portion may be disposed at an outer peripheral surface of the drive main body and includes a recessed structure to allow positioning of a middle finger of a hand of a user when the user grasps the drive main body in a body grasping mode, in which the drive main body is held between a thumb and an index finger of the hand from behind.Type: ApplicationFiled: April 3, 2015Publication date: October 15, 2015Inventors: Koji TAKAHASHI, Yuji SAKAKIBARA
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Publication number: 20140291361Abstract: A casting machine having a furnace body, a first heater, a first surface and pressure means. The furnace body has a melting portion and a holding portion, material being supplied and melted to form the molten metal in the melting portion, the holding portion holding the molten metal which has flowed out from the melting portion. The first heater heats the material supplied to the melting portion to melt it. The first surface is provided on a hearth surface of the melting portion and has concavities and convexities, the material to be heated being laid on the first surface.Type: ApplicationFiled: March 28, 2014Publication date: October 2, 2014Inventors: Kazumasa YASUDA, Yuji SAKAKIBARA, Naoto UESAKA, Atsushi YAMASHITA
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Publication number: 20130293164Abstract: There is provided a fluid apparatus that includes a fan configured to suction or discharge a gas; a motor configured to drive the fan; a battery configured to supply electric power to the motor; a current limiting device provided on an electrical conduction path from the battery to the motor; a first drive device configured to, when receiving a drive command from outside, flow a first drive current to the motor through the current limiting device, to thereby cause normal rotation of the motor; an operation switch to be operated by a user; and a second drive device configured to, while the operation switch is being operated by the user, flow a second drive current, which is larger than the first drive current, from the battery to the motor, to thereby cause high speed rotation of the motor,Type: ApplicationFiled: April 25, 2013Publication date: November 7, 2013Applicant: MAKITA CORPORATIONInventors: Yuji SAKAKIBARA, Toru YAMADA, Mitsuteru HAYASHI
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Patent number: 8484952Abstract: A device for purification of exhaust gas including: an exhaust gas passage 15 connected to an internal combustion engine 10; a particulate matter trapping device 30 which is disposed in the exhaust gas passage 15, and which traps particulate matters in exhaust gas; ozone supply means 40 which is connected to the exhaust gas passage 15 and on an upstream side of the particulate matter trapping device 30, and which can supply ozone to the particulate matter trapping device 30; and an NO oxidizing catalyst 20 which is disposed in the exhaust gas passage 15 and on an upstream of the ozone supply means 40, and which oxidizes NO in the exhaust gas.Type: GrantFiled: June 6, 2007Date of Patent: July 16, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuji Sakakibara, Yoshihiko Itoh, Koji Yokota, Kouzi Banno, Hirohito Hirata, Masaru Kakinohana, Masaya Ibe
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Publication number: 20110003541Abstract: It is an object of the invention to improve usability of a movable handle, in a sander having the movable handle. The sander includes a rotary working surface, a driving mechanism that is disposed above the rotary working surface in a direction of a rotation axis of the rotary working surface and rotationally drives the rotary working surface, a cylindrical housing that houses the driving mechanism, and a movable handle that is mounted on a surface of a cylindrical part of the cylindrical housing. The movable handle can be turned around a central axis of the cylindrical housing and can be fixed at an arbitrary position in a circumferential direction of the cylindrical housing.Type: ApplicationFiled: June 30, 2010Publication date: January 6, 2011Applicant: MAKITA CORPORATIONInventors: Hao Liu, Kenji Abe, Shigeru Takeda, Yuji Sakakibara, Hirokazu Kimata, Hideharu Muto, Shin Nakamura, Masanori Furusawa, Yoshio Sugiyama, Tomohiro Ukai
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Publication number: 20100281856Abstract: A device for purification of exhaust gas including: an exhaust gas passage 15 connected to an internal combustion engine 10; a particulate matter trapping device 30 which is disposed in the exhaust gas passage 15, and which traps particulate matters in exhaust gas; ozone supply means 40 which is connected to the exhaust gas passage 15 and on an upstream side of the particulate matter trapping device 30, and which can supply ozone to the particulate matter trapping device 30; and an NO oxidizing catalyst 20 which is disposed in the exhaust gas passage 15 and on an upstream of the ozone supply means 40, and which oxidizes NO in the exhaust gas.Type: ApplicationFiled: June 6, 2007Publication date: November 11, 2010Inventors: Yuji Sakakibara, Yoshihiko Itoh, Koji Yokota, Kouzi Banno, Hirohito Hirata, Masaru Kakinohana, Masaya Ibe
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Publication number: 20090308060Abstract: A process for purifying exhaust gases includes the steps of collecting PMs, forcibly exhausting PMs, and purifying PMs. In the step of purifying PMs, PMs in exhaust gases are collected with a filter. In the step of forcibly exhausting PMs, PMs, which are collected on the filter, are exhausted by blowing a pressurized gas onto the filter, thereby forming PMs-containing gases. In the step of purifying PMs, PMs, which are contained in the PMs-containing gases, are purified by contacting an oxidizing agent with the PMs-containing gases, thereby removing the PMs from the PMs-containing gases by means of oxidation.Type: ApplicationFiled: April 6, 2006Publication date: December 17, 2009Inventors: Juij Suzuki, Kiyoshi Yamazaki, Yuji Sakakibara
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Publication number: 20090064664Abstract: A device for cleaning exhaust gas of an internal combustion engine according to the present invention includes a device (30) for collecting particulate matter from exhaust gas in an exhaust gas passage (15), ozone feeding device (40) capable of feeding ozone to the device (30) for collecting particulate matter from upstream thereof, and an NOx catalyst (20) disposed upstream from the ozone feeding device (40), for cleaning NOx in the exhaust gas. Since NOx is preliminarily removed by the NOx catalyst (20) at apposition upstream from the ozone feeding device (40), the consumption of ozone due to the reaction with NOx is prevented, whereby it is possible to effectively use ozone for the purpose of oxidizing and removing PM in the device (30) for collecting particulate matter.Type: ApplicationFiled: September 15, 2006Publication date: March 12, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirohito Hirata, Masaru Kakinohana, Masaya Ibe, Yuji Sakakibara, Yoshihiko Itoh
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Patent number: 6777368Abstract: A molten-salt type catalyst is adapted for purifying particulate materials, which are contained in an exhaust gas emitted from an internal combustion engine and contain carbon. It includes a solid support and a catalytic ingredient. The catalytic ingredient is loaded on the solid support, and includes at least one member selected from the group consisting of silver nitrate, alkali metal nitrate, alkaline-earth metal nitrate and rare-earth nitrate. The molten-type catalyst can efficiently burn and remove the particulate materials even in a low temperature range.Type: GrantFiled: January 3, 2002Date of Patent: August 17, 2004Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Tomoyuki Kayama, Hirofumi Shinjoh, Yuji Sakakibara
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Publication number: 20020137627Abstract: A molten-salt type catalyst is adapted for purifying particulate materials, which are contained in an exhaust gas emitted from an internal combustion engine and contain carbon. It includes a solid support and a catalytic ingredient. The catalytic ingredient is loaded on the solid support, and includes at least one member selected from the group consisting of silver nitrate, alkali metal nitrate, alkaline-earth metal nitrate and rare-earth nitrate. The molten-type catalyst can efficiently burn and remove the particulate materials even in a low temperature range.Type: ApplicationFiled: January 3, 2002Publication date: September 26, 2002Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Tomoyuki Kayama, Hirofumi Shinjoh, Yuji Sakakibara
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Patent number: D527592Type: GrantFiled: May 21, 2004Date of Patent: September 5, 2006Assignee: Makita CorporationInventors: Naohiro Hayakawa, Manabu Sugimoto, Yuji Sakakibara, Taiju Tsuboi
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Patent number: D637774Type: GrantFiled: May 13, 2010Date of Patent: May 10, 2011Assignee: Makita CorporationInventors: Xin Bing Li, Yuji Yamamoto, Yuji Sakakibara
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Patent number: D1020422Type: GrantFiled: July 29, 2022Date of Patent: April 2, 2024Assignee: MAKITA CORPORATIONInventors: Kento Nakamura, Yuji Sakakibara