Patents by Inventor Kenichiro Takama
Kenichiro Takama 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: 9790956Abstract: There is provided a turbocharger bearing housing having no necessity to use a core and capable of achieving cost reduction. A bearing housing of a turbocharger contains a shaft connecting a turbine and a compressor and turnably supports the shaft. The bearing housing of the turbocharger is divided into a turbine-side housing disposed at a turbine side and a compressor-side housing disposed at a compressor side. The turbine-side housing and the compressor-side housing is subjected to machining to thereby form a cooling water passage for supplying cooling water and a lubricating oil passage for supplying lubricating oil.Type: GrantFiled: March 18, 2013Date of Patent: October 17, 2017Assignee: TAIHO KOGYO CO., LTD.Inventors: Kenichiro Takama, Satoru Kanbara, Keijiro Maki, Ryuji Naruse
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Patent number: 9746002Abstract: There is provided a turbocharger which can reduce whirl vibration. The turbocharger includes a shaft connecting a turbine and a compressor, a bearing housing having a bearing portion turnably supporting the shaft, and a sliding bearing interposed between the shaft and the bearing portion. The bearing portion is formed of an aluminum-based material, the shaft is formed of a steel material, and the sliding bearing is formed of a copper-based material.Type: GrantFiled: March 18, 2013Date of Patent: August 29, 2017Assignee: TAIHO KOGYO CO., LTD.Inventors: Kenichiro Takama, Satoru Kanbara, Keijiro Maki, Ryuji Naruse
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Publication number: 20160341081Abstract: There is provided a lubricant feed mechanism capable of improving the mechanical efficiency of a supercharger. A lubricant feed mechanism for feeding lubricants to an engine and a supercharger mounted on the engine includes a block-side oil passage for feeding the lubricant to a cylinder block of the engine, a block-side oil pan that is disposed in a path of the block-side oil passage and stores the lubricant flowing through the block-side oil passage, a head-side oil passage for feeding the lubricant to the supercharger, and a head-side oil pan that is disposed in a path of the head-side oil passage and stores the lubricant flowing through the head-side oil passage, the block-side oil passage and the head-side oil passage being configured to be independent of each other.Type: ApplicationFiled: March 9, 2015Publication date: November 24, 2016Applicant: Taiho Kogyo Co., Ltd.Inventors: Kenichiro TAKAMA, Satoru KANBARA, Toshiki KUROKI
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Publication number: 20150093239Abstract: There is provided a turbocharger bearing housing which is capable of reducing the weight thereof. A bearing housing of a turbocharger contains a shaft connecting a turbine and a compressor, and turnably supports the shaft. The bearing housing of the turbocharger is divided into a turbine-side housing disposed at a turbine side and a compressor-side housing disposed at a compressor side. The compressor-side housing is formed of an aluminum-based material.Type: ApplicationFiled: March 18, 2013Publication date: April 2, 2015Inventors: Kenichiro Takama, Satoru Kanbara, Keijiro Maki, Ryuji Naruse
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Publication number: 20150056065Abstract: There is provided a turbocharger which can reduce whirl vibration. The turbocharger includes a shaft connecting a turbine and a compressor, a bearing housing having a bearing portion turnably supporting the shaft, and a sliding bearing interposed between the shaft and the bearing portion. The bearing portion is formed of an aluminum-based material, the shaft is formed of a steel material, and the sliding bearing is formed of a copper-based material.Type: ApplicationFiled: March 18, 2013Publication date: February 26, 2015Inventors: Kenichiro Takama, Satoru Kanbara, Keijiro Maki, Ryuji Naruse
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Publication number: 20150056064Abstract: There is provided a turbocharger bearing housing having no necessity to use a core and capable of achieving cost reduction. A bearing housing of a turbocharger contains a shaft connecting a turbine and a compressor and turnably supports the shaft. The bearing housing of the turbocharger is divided into a turbine-side housing disposed at a turbine side and a compressor-side housing disposed at a compressor side. The turbine-side housing and the compressor-side housing is subjected to machining to thereby form a cooling water passage for supplying cooling water and a lubricating oil passage for supplying lubricating oil.Type: ApplicationFiled: March 18, 2013Publication date: February 26, 2015Inventors: Kenichiro Takama, Satoru Kanbara, Keijiro Maki, Ryuji Naruse
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Patent number: 5350154Abstract: A ceramic valve assembly is housed in a recess formed in a metal pipe and is supported via gaskets by the metal pipes. Each gasket has a larger coefficient of linear expansion than that of the metal pipe. A clearance generated due to the thermal expansion difference between the metal pipe and the ceramic housing is absorbed by the large thermal expansion of the gasket so that no play is generated between the ceramic valve assembly and the metal pipe and the sealing force is maintained. Each gasket has beads constructed of spring material. An excessively large load does not act on the ceramic assembly because the beads are deformed to absorb the load.Type: GrantFiled: November 1, 1993Date of Patent: September 27, 1994Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kenichiro Takama, Kimihide Horio, Michihiko Miyasaka, Takafumi Tsurumaru, Shinsuke Takenishi
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Patent number: 4723973Abstract: An exhaust-gas purifying apparatus according to the present invention comprises an exhaust-gas filter for trapping particulates in exhaust gas from an engine, and a heating device located on the upper-course side of the filter, with respect to the flowing direction of the exhaust gas, the heating device including one or more conductive-ceramic heater elements, capable of heating and burning the particulates caught by the filter, and a heater case for holding the heater elements in position, so that the caught particulates are heated and burned by the heater elements when the flow resistance of the exhaust gas, flowing through the filter, is increased by the caught particulates, whereby the flow resistance is reduced. The heater element includes a fixed electrode portion, immovably fixed to the heater case, and a slidable electrode portion held slidably.Type: GrantFiled: September 26, 1986Date of Patent: February 9, 1988Assignees: Nippondenso Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Kazuo Oyobe, Hiroki Hoshizaki, Terutaka Kageyama, Hirofumi Suzuki, Yoshihiko Imamura, Kiyoshi Kobashi, Kenichiro Takama, Shinichi Takeshima
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Patent number: 4723069Abstract: A ceramic heater for regenerating a fine particle collecting filter which is exposed to exhaust gases at elevated temperatures. This ceramic heater comprises two electrode potions, a heat generation portion connected to the two electrode portions and a holding projection portion of a ceramic heater connected to the side of the heat generating portion. The two electrode portions, the heat generating portion and the holding projection portion are formed integrally.Type: GrantFiled: September 16, 1986Date of Patent: February 2, 1988Assignees: Toyota Jidosha Kabushiki Kaisha, Nippondenso Co., Ltd.Inventors: Hiroki Hoshizaki, Kazuo Oyobe, Hirofumi Suzuki, Nobuaki Kawahara, Terutaka Kageyama, Hitoshi Niwa, Shinichi Takeshima, Yoshihiko Imamura, Kiyoshi Kobashi, Kenichiro Takama