Patents by Inventor Takahiro Tokunaga
Takahiro Tokunaga 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: 20230237118Abstract: In order to solve a conventional problem that it is not possible to manage partial content in a webpage as a block and execute processing on the block, a webpage processing apparatus 7 includes: a block information storage unit 711 in which one or more pieces of block information each having a block identifier for identifying a block, which is partial content in a webpage, and location identifying information for specifying a location of the block in the webpage are stored; a block processing unit 731 that executes block processing, which is processing regarding a block specified with block information, using location identifying information contained in any one of the one or more pieces of block information; and a result output unit 751 that outputs a block processing result, which is a result of the block processing. Accordingly, it is possible to manage a block, which is partial content in a webpage, and execute processing on the block.Type: ApplicationFiled: June 2, 2021Publication date: July 27, 2023Inventors: Takahiro TOKUNAGA, Yuichi YABU, Takami YAMADA, Kazuhiro KIMURA, Ryosuke SUZUKI, Naoya MUTO, Hirofumi TANAHASHI, Minori TOKUDA
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Patent number: 10371026Abstract: An improved blow-by gas return structure minimizes the occurrence of a drawback caused by freezing at a low temperature by bringing a state where freezing minimally occurs in a blow-bay gas passage such as a pipe disposed outside an engine. The blow-by gas return structure is configured such that a blow-by gas is introduced into an intake manifold through an inner passage formed in a head cover. The blow-by gas return structure includes an outer pipe which connects a blow-by gas outlet of the head cover and a blow-by gas inlet of a main pipe of the intake manifold in a communicable manner, and a temperature elevating mechanism configured to elevate a temperature of the blow-by gas inlet. The temperature elevating mechanism is configured such that a cooling water transfer passage is formed in a portion of the blow-by gas inlet of the main pipe.Type: GrantFiled: June 9, 2017Date of Patent: August 6, 2019Assignee: KUBOTA CorporationInventors: Takahiro Tokunaga, Yusuke Tanimoto, Kazuya Hamada, Shinji Kishi, Yuzo Umeda
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Publication number: 20170370256Abstract: An improved blow-by gas return structure minimizes the occurrence of a drawback caused by freezing at a low temperature by bringing a state where freezing minimally occurs in a blow-bay gas passage such as a pipe disposed outside an engine. The blow-by gas return structure is configured such that a blow-by gas is introduced into an intake manifold through an inner passage formed in a head cover. The blow-by gas return structure includes an outer pipe which connects a blow-by gas outlet of the head cover and a blow-by gas inlet of a main pipe of the intake manifold in a communicable manner, and a temperature elevating mechanism configured to elevate a temperature of the blow-by gas inlet. The temperature elevating mechanism is configured such that a cooling water transfer passage is formed in a portion of the blow-by gas inlet of the main pipe.Type: ApplicationFiled: June 9, 2017Publication date: December 28, 2017Inventors: Takahiro TOKUNAGA, Yusuke TANIMOTO, Kazuya HAMADA, Shinji KISHI, Yuzo UMEDA
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Patent number: 8991564Abstract: A disk brake includes a caliper body having a cylinder portion (25) with a cylindrical shape. The cylinder portion (25) has a bore (30) with a bottom (34) formed by integrally joining together an opening peripheral edge (98) at the bottom side of the cylinder portion (25) and a bottom cover member (92) to be fitted to the opening peripheral edge (98) through friction stir welding. The bottom cover member (92) has a disk shape and is friction-stir-welded along the outer periphery thereof. The terminating point of the friction stir welding is within the boundaries of the bottom cover member (92).Type: GrantFiled: September 22, 2011Date of Patent: March 31, 2015Assignee: Hitachi Automotive Systems, Ltd.Inventors: Shinji Suzuki, Takahiro Tokunaga, Yuichi Kobayashi, Yasuhisa Omata, Jun Watanabe, Seunghwan Park, Akihiro Sato, Satoshi Hirano, Kazutaka Okamoto
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Patent number: 8991563Abstract: A disk brake and a method of making the disk brake capable of improving the efficiency of manufacturing a caliper. A bottom portion (41) of a bore (40) is formed by integrally welding an opening surrounding portion at the bottom portion side of a cylinder portion (35) and a bottom cover member (92) fitted to the opening surrounding portion by friction stir welding. The bottom cover member is formed into a disk shape, and provided with a protrusion (68) at one surface side facing the interior of the bore. An inflow hole (58), for a supply of a fluid pressure into the bore, is formed within the range of the protrusion to establish communication between an interior surface (71) of the protrusion and an outer surface (63) of the bore.Type: GrantFiled: June 4, 2010Date of Patent: March 31, 2015Assignee: Hitachi Automotive Systems, Ltd.Inventors: Shinji Suzuki, Takahiro Tokunaga
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Patent number: 8808073Abstract: An air passage open/close device includes a casing having an air passage, and a sliding door having a board member slidably located in the casing so as to open or close the air passage. The casing has a guide groove for guiding a movement of the board member. The guide groove has an upstream wall extending in a moving direction of the board member at an upstream side of the board member in an air flow direction, and a downstream wall opposing to the upstream wall at a downstream side of the board member in the air flow direction. The board member is configured to be elastically deformed when the board member is arranged in the casing.Type: GrantFiled: June 16, 2009Date of Patent: August 19, 2014Assignee: Denso CorporationInventors: Takahiro Tokunaga, Yukio Uemura, Yoshikazu Sakaki
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Patent number: 8240164Abstract: An air conditioning system includes an air-conditioner casing, an air blower, a cooling heat exchanger, a heating heat exchanger, and a bypass passage. An electric motor of the blower has a rotating shaft that extends along a rotating shaft axis. An impeller of the blower suctions air from one side of the impeller along the rotating shaft axis to blow air in a radial direction of the impeller. The bypass passage causes cold air to bypass the heating heat exchanger. The air blower is located downstream of the cooling heat exchanger and the heating heat exchanger in a flow direction of air. The cooling heat exchanger and the heating heat exchanger are arranged in parallel with each other. The air blower is positioned on an imaginary extension of the heating heat exchanger. The rotating shaft is disposed in parallel with the heating heat exchanger.Type: GrantFiled: July 22, 2008Date of Patent: August 14, 2012Assignee: Denso CorporationInventors: Takahiro Tokunaga, Hitomi Asano
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Publication number: 20120103734Abstract: A disk brake includes a caliper body having a cylinder portion 25 with a cylindrical shape. The cylinder portion 25 has a bore 30 with a bottom 34 formed by integrally joining together an opening peripheral edge 98 at the bottom side of the cylinder portion 25 and a bottom cover member 92 to be fitted to the opening peripheral edge 98 through friction stir welding. The bottom cover member 92 has a disk shape and is friction-stir-welded along the outer periphery thereof. The terminating point of the friction stir welding is within the boundaries of the bottom cover member 92.Type: ApplicationFiled: September 22, 2011Publication date: May 3, 2012Inventors: Shinji SUZUKI, Takahiro Tokunaga, Yuichi Kobayashi, Yasuhisa Omata, Jun Watanabe, Seunghwan Park, Akihiro Sato, Satoshi Hirano, Kazutaka Okamoto
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Patent number: 7963316Abstract: An air conditioning apparatus has a case, a heat exchanger rotatable about a rotation axis in the case, and a pipe unit in communication with the heat exchanger. The pipe unit has a first section fixed to the case and a second section coaxially coupled to the first section. The second section is coupled to the heat exchanger and rotatable with the heat exchanger. The first section has a first annular portion, a second annular portion, a cylindrical portion, and a support member. The second section has a flange portion disposed between the first annular portion and the support member. An O-ring is disposed in a groove provided by the first annular portion and the cylindrical portion, and is in contact with a surface of the first annular portion and the flange portion in a direction parallel to the rotation axis.Type: GrantFiled: January 10, 2007Date of Patent: June 21, 2011Assignees: Denso Corporation, Tokai Riki Mfg. Co., LtdInventors: Takahiro Tokunaga, Koichi Ito, Yoshio Miyata, Nobuyuki Hashimura, Akihisa Kurokawa
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Publication number: 20100307874Abstract: An object of the present invention is to provide a disk brake and a method of making the disk brake capable of improving the efficiency of manufacturing a caliper. A bottom portion 41 of a bore 40 is formed by integrally welding an opening surrounding portion at the bottom portion 41 side of a cylinder portion 35 and a bottom cover member 92 fitted to the opening surrounding portion by friction stir welding. The bottom cover member 92 is formed into a disk shape, and provided with a protrusion 68 at one surface side facing the interior of the bore 40, and an inflow hole 58 for a supply of a fluid pressure into the bore 40 formed within the range of the protrusion 68 to establish communication between one surface 71 and the other surface 63.Type: ApplicationFiled: June 4, 2010Publication date: December 9, 2010Inventors: Shinji SUZUKI, Takahiro TOKUNAGA
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Patent number: 7779900Abstract: Both an air mixing door (9) for the cold air for adjusting a passage area of the cold air passage (6); and an air mixing door (10) for the hot air for adjusting a passage area of the hot air passage (7) are composed of a sliding door for adjusting the passage area when the air mixing door (9) for the cold air and the air mixing door (10) for the hot air are slid in a direction perpendicular to the flow of air in both the passages (6, 7), and while one of the air mixing door (9) for the cold air and the air mixing door (10) for the hot air is maintaining one of the passages (6, 7) in a fully opened state, an operating position of the other door is adjusted so that a passage area of the other passage is adjusted and a temperature of the air blowing out into a vehicle compartment is adjusted.Type: GrantFiled: June 8, 2009Date of Patent: August 24, 2010Assignee: Denso CorporationInventors: Koji Ito, Takahiro Tokunaga, Yoshihiko Okumura
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Publication number: 20100078269Abstract: There is provided a disk brake, comprising: a pad supporting member where at least a pair of lining pads is supported, and at least two first installation holes are provided at a mounting portion that is installed to a vehicle; at least two second installation holes provided at a non-rotational portion of the vehicle; and a fixing bolt installed into the first and second installation holes so as to fasten the mounting portion and the non-rotational portion, wherein a reinforcement member is provided with at least two internal thread portions into which the fixing bolt is screwed, the reinforcement member being formed with materials different from the ones of the mounting portion and the non-rotational portion, and the mounting portion and the non-rotational portion are fastened by means of the reinforcement member and the fixing bolt.Type: ApplicationFiled: September 9, 2009Publication date: April 1, 2010Applicant: Hitachi Automotive Systems, Ltd.Inventors: Takahiro Tokunaga, Shinji Suzuki, Yoichi Kumemura
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Publication number: 20090313899Abstract: An air passage open/close device includes a casing having an air passage, and a sliding door having a board member slidably located in the casing so as to open or close the air passage. The casing has a guide groove for guiding a movement of the board member. The guide groove has an upstream wall extending in a moving direction of the board member at an upstream side of the board member in an air flow direction, and a downstream wall opposing to the upstream wall at a downstream side of the board member in the air flow direction. The board member is configured to be elastically deformed when the board member is arranged in the casing.Type: ApplicationFiled: June 16, 2009Publication date: December 24, 2009Applicant: DENSO CORPORATIONInventors: Takahiro Tokunaga, Yukio Uemura, Yoshikazu Sakaki
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Publication number: 20090250194Abstract: Both an air mixing door (9) for the cold air for adjusting a passage area of the cold air passage (6); and an air mixing door (10) for the hot air for adjusting a passage area of the hot air passage (7) are composed of a sliding door for adjusting the passage area when the air mixing door (9) for the cold air and the air mixing door (10) for the hot air are slid in a direction perpendicular to the flow of air in both the passages (6, 7), and while one of the air mixing door (9) for the cold air and the air mixing door (10) for the hot air is maintaining one of the passages (6, 7) in a fully opened state, an operating position of the other door is adjusted so that a passage area of the other passage is adjusted and a temperature of the air blowing out into a vehicle compartment is adjusted.Type: ApplicationFiled: June 8, 2009Publication date: October 8, 2009Applicant: DENSO CORPORATIONInventors: Koji Ito, Takahiro Tokunaga, Yoshihiko Okumura
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Patent number: 7523726Abstract: An air-cooled V-shaped engine comprises a throttle body (10) and a flow-dividing plate (9) arranged ahead of a central cooling-air passage (8). The flow-dividing plate (9) is provided in a fan case (5) at a position forwardly of the throttle body (10) and has a bottom-plate portion (14) disposed at a position lower than the throttle body (10). The flow-dividing plate (9) divides the cooling air generated by an air-blowing fan (7) toward left and right sides of the central cooling-air passage (8). In this air-cooled V-shaped engine, the fan case (5) has a ceiling wall a central portion (11) of which is positioned just above the bottom-plate portion (14) of the flow-dividing plate (9). The central portion (11) of the ceiling wall of the flow-dividing plate (9) is provided at a position higher than the throttle body (10) as well as the central side portions (12), (12) of the ceiling wall, led out of the central portion (11) in a left and right directions.Type: GrantFiled: September 20, 2007Date of Patent: April 28, 2009Assignee: Kubota CorporationInventors: Eishin Nakashima, Kiyonobu Iida, Hiroyuki Tsuda, Akiyoshi Morikawa, Noriaki Kobayashi, Masaharu Ohno, Hiroyuki Kawasoe, Yuki Ozaki, Takahiro Tokunaga, Takayuki Nakamae, Mineo Takasaki
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Publication number: 20090025905Abstract: An air conditioning system includes an air-conditioner casing, an air blower, a cooling heat exchanger, a heating heat exchanger, and a bypass passage. An electric motor of the blower has a rotating shaft that extends along a rotating shaft axis. An impeller of the blower suctions air from one side of the impeller along the rotating shaft axis to blow air in a radial direction of the impeller. The bypass passage causes cold air to bypass the heating heat exchanger. The air blower is located. downstream of the cooling heat exchanger and the heating heat exchanger in a flow direction of air. The cooling heat exchanger and the heating heat exchanger are arranged in parallel with each other. The air blower is positioned on an imaginary extension of the heating heat exchanger. The rotating shaft is disposed in parallel with the heating heat exchanger.Type: ApplicationFiled: July 22, 2008Publication date: January 29, 2009Applicant: DENSO CORPORATIONInventors: Takahiro Tokunaga, Hitomi Asano
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Publication number: 20090023374Abstract: An air passage opening and closing device includes a case forming an opening portion, a sliding door, and a gear mechanism. The case has a case-side seal surface at two edges of the opening portion in a width direction of a door body of the sliding door, on which a first plate surface of the door body abuts. The gear mechanism includes a driven side gear molded integrally with the door body using resin. The driven side gear protrudes from a second plate surface of the door body on a side opposite to the first plate surface, and extends in parallel with a movement direction of the sliding door, at two edge portions of the second plate surface in the width direction. In addition, the driven side gear has a hollow space opened toward a direction parallel to the width direction.Type: ApplicationFiled: July 17, 2008Publication date: January 22, 2009Applicant: DENSO CORPORATIONInventors: Yoshihiro Suzuki, Takahiro Tokunaga, Yoshikazu Sakaki
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Patent number: 7464749Abstract: The air-conditioning unit includes an air-conditioning case, a heater, a bypass path bypassing the heater, an air-mixing chamber, an air-mixing door, and an air opening. The air-conditioning unit also includes an auxiliary door arranged in series with the air-mixing door in the bypass path. The auxiliary door is operated between at a first position and at a second position. The auxiliary door in the first position closes the bypass path more than in the second position. The auxiliary door is operated at the first position at least when the air-mixing door opens the bypass path slightly.Type: GrantFiled: November 2, 2004Date of Patent: December 16, 2008Assignee: Denso CorporationInventors: Yoshihiko Okumura, Takahiro Tokunaga
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Patent number: 7434608Abstract: An air-blowing unit includes a blower unit including an irreversible fan, a first blower-side duct connected to an inlet port of the blower unit, a second blower-side duct connected to an air discharge port of the blower unit, a first air opening-side duct including a first air opening, a second air opening-side duct including a second air opening, and an air passage switching device disposed between the blower-side ducts and the air opening-side ducts. The air passage switching device switches air passage connection between the blower-side ducts and the air opening-side ducts.Type: GrantFiled: October 5, 2004Date of Patent: October 14, 2008Assignee: Denso CorporationInventors: Tomohide Shindo, Takahiro Tokunaga
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Publication number: 20080127914Abstract: An air-cooled V-shaped engine comprises a throttle body (10) and a flow-dividing plate (9) arranged ahead of a central cooling-air passage (8). The flow-dividing plate (9) is provided in a fan case (5) at a position forwardly of the throttle body (10) and has a bottom-plate portion (14) disposed at a position lower than the throttle body (10). The flow-dividing plate (9) divides the cooling air generated by an air-blowing fan (7) toward left and right sides of the central cooling-air passage (8). In this air-cooled V-shaped engine, the fan case (5) has a ceiling wall a central portion (11) of which is positioned just above the bottom-plate portion (14) of the flow-dividing plate (9). The central portion (11) of the ceiling wall of the flow-dividing plate (9) is provided at a position higher than the throttle body (10) as well as the central side portions (12), (12) of the ceiling wall, led out of the central portion (11) in a left and right directions.Type: ApplicationFiled: September 20, 2007Publication date: June 5, 2008Applicant: KUBOTA CorporationInventors: Eishin Nakashima, Kiyonobu IIda, Hiroyuki Tsuda, Akiyoshi Morikawa, Noriaki Kobayashi, Masaharu Ohno, Hiroyuki Kawasoe, Yuki Ozaki, Takahiro Tokunaga, Takayuki Nakamae, Mineo Takasaki