Patents by Inventor Motoichi Murakami
Motoichi Murakami 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: 8783223Abstract: The present invention is provided with a configuration which makes it possible to inhibit contact between an oil (L) and a gas in an oil pan (10a) properly. The oil pan (10a) according to the present invention contains a film (S1) which covers an oil surface (F) of the oil (L) to separate the stored oil (L) and the gas above the oil (L). The film (S1) can float by receiving buoyancy in the oil (L). The film (S1) may be formed of a liquid. The film also may be configured by a film member.Type: GrantFiled: April 30, 2009Date of Patent: July 22, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yukio Koseki, Motoichi Murakami, Norio Inami, Ryuji Koike
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Patent number: 8772208Abstract: The present invention provides an additive agent to be added to oil and comprising weak basic hydrotalcite. At the time of adding a mixture of hydrotalcite of 1 weight % and water by 3 weight % to the oil where a hydrogen ion exponent is within a range of 6 to 7 for stirring, the weak basic hydrotalcite is hydrotalcite where the obtained oil indicates the hydrogen ion exponent within a range of 6 to 7. Such an additive agent can be accommodated in an oil filter (36) for use.Type: GrantFiled: March 18, 2011Date of Patent: July 8, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Ippei Fukutomi, Norio Inami, Kenichi Harada, Motoichi Murakami, Koji Morita, Takahiko Fujiwara
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Publication number: 20140091161Abstract: A piston cooling jet includes a housing, a nozzle, a valve, a pressure chamber, a pressure adjusting passage, and a filter. The nozzle is provided to project outward from the housing, and capable of spraying oil toward a piston. The valve is capable of moving reciprocally inside the housing, and configured to receive a load due to a hydraulic pressure in an engine-side oil passage applied from a front side of the valve. The valve includes a valve-side oil passage that communicates with the engine-side oil passage. The pressure chamber communicates with the valve-side oil passage. The pressure adjusting passage is disposed between the pressure chamber and a space outside the housing. The filter is disposed in the valve, and configured to remove foreign matter that cannot pass through the pressure adjusting passage from oil passing through the valve-side oil passage.Type: ApplicationFiled: September 16, 2013Publication date: April 3, 2014Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TAIHO KOGYO CO., LTD.Inventors: Yoshitaka YAMAGUCHI, Masahiro KAWAHARA, Motoichi MURAKAMI, Akihiro HONDA
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Publication number: 20140088852Abstract: Provided is a control apparatus for an internal combustion engine which can favorably achieve a good balance between the prevention of an excessive increase in the piston temperature and the prevention of deterioration of various performances of the internal combustion engine as a result of execution of abnormal combustion suppression control, even when abnormal combustion occurs continuously or substantially continuously over a plurality of cycles. An in-cylinder pressure sensor (34) is provided to obtain the in-cylinder pressure P of an internal combustion engine (10). When continuous pre-ignition is detected using the in-cylinder pressure sensor (34), the control apparatus makes it more difficult for continuous pre-ignition suppression control to be executed when the Pmax at the time of pre-ignition is low than when the Pmax at the time of pre-ignition is high.Type: ApplicationFiled: July 11, 2011Publication date: March 27, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Yaguchi, Motoichi Murakami, Daisaku Ozaki
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Publication number: 20140033860Abstract: A rolling bearing of a balancer shaft device is positioned on an imaginary circle concentric with an axis of a shaft portion of a balancer shaft as viewed in a radial cross-section, and includes a cylindrical portion which covers the shaft portion. An outer circumferential surface of the cylindrical portion defines an inner ring raceway surface of an inner ring member on which a rolling element of the rolling bearing rolls. A part of the shaft portion of the balancer shaft, at a position on which the rolling bearing is disposed, has a cutout formed at a portion which does not contribute to offsetting of rotational vibration of a crankshaft.Type: ApplicationFiled: April 19, 2012Publication date: February 6, 2014Applicant: JTEKT CORPORATIONInventors: Yoshitaka Waseda, Kenichi Nakaoka, Motoichi Murakami, Kenichi Harada
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Publication number: 20140001108Abstract: The present invention provides a lubrication apparatus configured to supply oil to one or more supply portions in an internal combustion engine. This lubrication apparatus includes a first member including a hydrotalcites compound that is provided in an oil passage, and a second member that is provided in the oil passage and includes a reaction substance having a function of trapping a metallic component separated from the hydrotalcites compound.Type: ApplicationFiled: March 18, 2011Publication date: January 2, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ippei Fukutomi, Norio Inami, Motoichi Murakami, Kenichi Harada
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Publication number: 20130292318Abstract: An oil deterioration suppressing apparatus. The apparatus includes a filtering portion including a filter element for filtering oil; and a deterioration suppressing portion including powdery deterioration retarder which suppresses deterioration of oil. The deterioration suppressing portion includes a flow passage wall which holds the deterioration retarder and forms an oil flow passage, and the deterioration retarder includes mesoporous inorganic material.Type: ApplicationFiled: April 18, 2013Publication date: November 7, 2013Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Hideto MORISHITA, Yasuhiro SAITO, Ippei FUKUTOMI, Motoichi MURAKAMI, Katsuichi MIYASAKA, Yasuhiro OHMIYA, Hiroshi MORITANI, Mamoru TOHYAMA, Narihito TATSUDA
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Patent number: 8556514Abstract: A sliding support structure includes: a support member (12; 106) and a shaft member (10; 120) that relatively rotates with respect to the support member (12; 106) wherein lubricating oil is supplied to between a sliding surface of the shaft member and a sliding surface of the support member, the support member (12; 106) has a sliding surface portion (x) that corresponds to a load concentrating portion between the shaft member (10; 120) and the support member (12; 106), and sliding surface regions (Ya, Yb) that are higher in oil repellency than the sliding surface portion are respectively provided on upstream and downstream sides of the sliding surface portion in a flow direction of the lubricating oil.Type: GrantFiled: August 31, 2010Date of Patent: October 15, 2013Assignees: Toyota Jidosha Kabushiki Kaisha, Taiho Kogyo Co., Ltd.Inventors: Motoichi Murakami, Shoji Miyazaki, Yoshiki Ariizumi, Ryuji Koike, Naoto Koyamaishi, Shuzou Sanda, Shigeru Hotta, Katsuhiro Ashihara, Yasuhiro Hikita
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Publication number: 20130266252Abstract: A conical roller bearing device includes: a conical roller bearing that includes an inner ring (24) that has an outer raceway surface on its outer peripheral surface, an outer ring (22) that has an inner raceway surface on its inner peripheral surface, a retainer (26), and a plurality of conical rollers that are rollably arranged between the outer raceway surface of the inner ring (24) and the inner raceway surface of the outer ring (22) and that are respectively accommodated in pockets formed in the retainer (26); and a pressing mechanism that presses the retainer (26) in a direction to reduce gaps between the conical rollers and the outer raceway surface of the inner ring (24) and gaps between the conical rollers and the inner raceway surface of the outer ring (22) along center axes of the inner ring (24) and outer ring (22).Type: ApplicationFiled: June 28, 2011Publication date: October 10, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Motoichi Murakami, Kenichi Harada, Kenichi Nakaoka, Yoshitaka Waseda
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Patent number: 8499750Abstract: An oil mist separator (100) for an internal combustion engine that separates an oil component in a gas, which is introduced from a crankcase of the internal combustion engine, from the gas, includes a porous filter (150) that separates, from the gas, the oil component in the gas, the porous filter (150) being provided in a passage, through which the gas passes, and being coated with a counteragent for neutralizing an acid substance.Type: GrantFiled: May 15, 2009Date of Patent: August 6, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Naoto Koyamaishi, Tetsushi Suzuki, Motoichi Murakami, Norio Inami, Ryuji Koike
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Publication number: 20120312731Abstract: A material for trapping a target substance, which is capable of selectively trapping a target substance such as a sludge or a sludge precursor contained in a liquid organic compound such as an engine oil or in a gas such as a blow-by gas (combustion gas). A material for trapping a target substance, which traps a target substance contained in a liquid organic compound or a gas, the material including a mesoporous inorganic material having a plurality of pores.Type: ApplicationFiled: January 27, 2011Publication date: December 13, 2012Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Yasuhiro Ohmiya, Mamoru Tohyama, Hiroshi Moritani, Narihito Tatsuda, Kazuhisa Yano, Kenichi Harada, Ippei Fukutomi, Motoichi Murakami, Norio Inami, Ryuji Koike
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Publication number: 20120238480Abstract: The present invention provides an additive agent to be added to oil and comprising weak basic hydrotalcite. At the time of adding a mixture of hydrotalcite of 1 weight % and water by 3 weight % to the oil where a hydrogen ion exponent is within a range of 6 to 7 for stirring, the weak basic hydrotalcite is hydrotalcite where the obtained oil indicates the hydrogen ion exponent within a range of 6 to 7. Such an additive agent can be accommodated in an oil filter (36) for use.Type: ApplicationFiled: March 18, 2011Publication date: September 20, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ippei Fukutomi, Norio Inami, Kenichi Harada, Motoichi Murakami, Koji Morita, Takahiko Fujiwara
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Publication number: 20120204828Abstract: The present invention is provided with a configuration which makes it possible to inhibit contact between an oil (L) and a gas in an oil pan (10a) properly. The oil pan (10a) according to the present invention contains a film (S1) which covers an oil surface (F) of the oil (L) to separate the stored oil (L) and the gas above the oil (L). The film (S1) can float by receiving buoyancy in the oil (L). The film (S1) may be formed of a liquid. The film also may be configured by a film member.Type: ApplicationFiled: April 30, 2009Publication date: August 16, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yukio Koseki, Motoichi Murakami, Norio Inami, Ryuji Koike
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Publication number: 20120148180Abstract: A sliding support structure includes: a support member (12; 106) and a shaft member (10; 120) that relatively rotates with respect to the support member (12;106) wherein lubricating oil is supplied to between a sliding surface of the shaft member and a sliding surface of the support member, the support member (12; 106) has a sliding surface portion (x) that corresponds to a load concentrating portion between the shaft member (10; 120) and the support member (12; 106), and sliding surface regions (Ya, Yb) that are higher in oil repellency than the sliding surface portion are respectively provided on upstream and downstream sides of the sliding surface portion in a flow direction of the lubricating oil.Type: ApplicationFiled: August 31, 2010Publication date: June 14, 2012Applicants: Taiho Kogyo Co., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Motoichi Murakami, Shoji Miyazaki, Yoshiki Ariizumi, Ryuji Koike, Naoto Koyamaishi, Shuzou Sanda, Shigeru Hotta, Katsuhiro Ashihara, Yasuhiro Hikita
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Publication number: 20110056455Abstract: An oil mist separator (100) for an internal combustion engine that separates an oil component in a gas, which is introduced from a crankcase of the internal combustion engine, from the gas, includes a porous filter (150) that separates, from the gas, the oil component in the gas, the porous filter (150) being provided in a passage, through which the gas passes, and being coated with a counteragent for neutralizing an acid substance.Type: ApplicationFiled: May 15, 2009Publication date: March 10, 2011Inventors: Naoto Koyamaishi, Tetsushi Suzuki, Motoichi Murakami, Norio Inami, Ryuji Koike
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Patent number: 7699037Abstract: A diesel engine includes a fuel supply passage via which fuel is supplied from a fuel tank to an oil pan through a supply pump, a lubrication-system fuel supply passage via which fuel is supplied from the oil pan to engine parts to be lubricated through a lubricating oil pump, and an injection-system fuel supply passage via which fuel is supplied from the oil pan to an injection system through an injection pump.Type: GrantFiled: November 10, 2008Date of Patent: April 20, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Akira Yamashita, Motoichi Murakami, Tomoyuki Ono, Hiroshi Moritani, Toshihide Ohmori
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Publication number: 20090071435Abstract: A diesel engine includes a fuel supply passage via which fuel is supplied from a fuel tank to an oil pan through a supply pump, a lubrication-system fuel supply passage via which fuel is supplied from the oil pan to engine parts to be lubricated through a lubricating oil pump, and an injection-system fuel supply passage via which fuel is supplied from the oil pan to an injection system through an injection pump.Type: ApplicationFiled: November 10, 2008Publication date: March 19, 2009Inventors: Akira Yamashita, Motoichi Murakami, Tomoyuki Ono, Hiroshi Moritani, Toshihide Ohmori
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Patent number: 7461637Abstract: A diesel engine (1) includes a fuel supply passage (4) via which fuel is supplied from a fuel tank (2) to an oil pan (3) through a supply pump (6), a lubrication-system fuel supply passage (8) via which fuel is supplied from the oil pan (3) to engine parts (7) to be lubricated through a lubricating oil pump (10), and an injection-system fuel supply passage (13) via which fuel is supplied from the oil pan (3) to an injection system (12) through an injection pump (12).Type: GrantFiled: December 26, 2005Date of Patent: December 9, 2008Assignee: Toyota Jidosha Kabushiki KaishaInventors: Akira Yamashita, Motoichi Murakami, Tomoyuki Ono, Hiroshi Moritani, Toshihide Ohmori
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Publication number: 20080035099Abstract: A diesel engine (1) includes a fuel supply passage (4) via which fuel is supplied from a fuel tank (2) to an oil pan (3) through a supply pump (6), a lubrication-system fuel supply passage (8) via which fuel is supplied from the oil pan (3) to engine parts (7) to be lubricated through a lubricating oil pump (10), and an injection-system fuel supply passage (13) via which fuel is supplied from the oil pan (3) to an injection system (12) through an injection pump (12).Type: ApplicationFiled: December 26, 2005Publication date: February 14, 2008Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Akira Yamashita, Motoichi Murakami, Tomoyuki Ono, Hiroshi Moritani, Toshihide Ohmori
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Patent number: 6684855Abstract: A common rail fuel injection apparatus includes a piston that increases the injection pressure, and a chamber that controls the position of the piston so as to control the injection pressure. An input constriction that sets an amount of flow of the fuel that enters the control chamber, and an output constriction that sets an amount of flow of the fuel that exits from the chamber are formed. The input constriction is connected to a common rail by a valve. By opening and closing the valve, the injection pressure of the fuel injected from an injector is changed. Therefore, the injection pressure of fuel injected from the injector can be changed as requested without a need to process high precision component parts.Type: GrantFiled: March 18, 2002Date of Patent: February 3, 2004Assignee: Toyota Jidosha Kabushiki KaishaInventors: Motoichi Murakami, Yoshimasa Watanabe, Kazuhiro Omae