Patents by Inventor Ryosuke Fujiki
Ryosuke Fujiki 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: 9291121Abstract: A cylinder head gasket includes a plurality of seal plates 1 to 4 so that a combustion gas that leaks through a gap between the respective seal plates is reliably sealed. The cylinder head gasket includes the plurality of seal plates 1 to 4, which are held between a cylinder head and a cylinder block having a cylinder bore. The plurality of seal plates 1 to 4 are adhered to each other in a circumferentially continuous manner around combustion chamber holes 1a to 4a, and the combustion gas that leaks through the gap between the respective seal plates is reliably sealed within an adhered portion 5 of the respective seal plates.Type: GrantFiled: November 6, 2013Date of Patent: March 22, 2016Assignee: NIPPON GASKET CO., LTD.Inventors: Shingo Mori, Tomoaki Matsubara, Ryosuke Fujiki
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Patent number: 8960681Abstract: A cylinder head gasket 1 is sandwiched between a cylinder head 2 and a cylinder block 3 with a cylinder bore 4 and includes a substrate 10 with a combustion chamber hole 14 drilled at a position of the cylinder bore 4, and seal plates 11 to 13, the substrate 10 and the seal plates are stacked on one another. Fixation members 21 and 22 are secured to the substrate around a periphery of the combustion chamber hole. The seal plates include an engagement hole 23 formed therein and with which the fixation members are engaged. The engagement hole is engaged with the fixation members. The fixation members are sandwiched between the cylinder head and the cylinder block. The cylinder head and the cylinder block can be firmly coupled together via the fixation members.Type: GrantFiled: July 6, 2009Date of Patent: February 24, 2015Assignees: Nippon Gasket Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Yasumaro Takeda, Toru Takasu, Ryosuke Fujiki, Kazuya Yoshijima, Yoshihiko Masuda
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Publication number: 20140062033Abstract: A cylinder head gasket includes a plurality of seal plates 1 to 4 so that a combustion gas that leaks through a gap between the respective seal plates is reliably sealed. The cylinder head gasket includes the plurality of seal plates 1 to 4, which are held between a cylinder head and a cylinder block having a cylinder bore. The plurality of seal plates 1 to 4 are adhered to each other in a circumferentially continuous manner around combustion chamber holes 1a to 4a, and the combustion gas that leaks through the gap between the respective seal plates is reliably sealed within an adhered portion 5 of the respective seal plates.Type: ApplicationFiled: November 6, 2013Publication date: March 6, 2014Inventors: Shingo MORI, Tomoaki MATSUBARA, Ryosuke FUJIKI
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Patent number: 8608178Abstract: A cylinder head gasket includes a plurality of seal plates 1 to 4 so that a combustion gas that leaks through a gap between the respective seal plates is reliably sealed. The cylinder head gasket includes the plurality of seal plates 1 to 4, which are held between a cylinder head and a cylinder block having a cylinder bore. The plurality of seal plates 1 to 4 are adhered to each other in a circumferentially continuous manner around combustion chamber holes 1a to 4a, and the combustion gas that leaks through the gap between the respective seal plates is reliably sealed within an adhered portion 5 of the respective seal plates.Type: GrantFiled: September 12, 2008Date of Patent: December 17, 2013Assignee: Nippon Gasket Co., Ltd.Inventors: Shingo Mori, Tomoaki Matsubara, Ryosuke Fujiki
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Publication number: 20110127729Abstract: A cylinder head gasket 1 includes at least one first seal plate 11 held between a cylinder head 2 and a cylinder block 3 having a cylinder bore 4, and the first seal plate 11 includes a combustion chamber hole 13 bored at a position of the cylinder bore 4 and a first full bead 11a surrounding the combustion chamber hole. In the first seal plate 11, a first step 11b U-shaped in section is formed at a position surrounding the combustion chamber hole outside of the first full bead 11a, and a filler 21 is charged in a recessed portion of the first step. Since the cylinder head and the cylinder block can be firmly connected via the step 11b, deformation of the cylinder block by explosion pressure of an engine can be suppressed, and thereby, reduction in sealing performance can be prevented.Type: ApplicationFiled: July 24, 2009Publication date: June 2, 2011Inventors: Yasumaro Takeda, Ryosuke Fujiki, Kazuya Yoshijima, Yoshihiko Masuda
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Publication number: 20110095492Abstract: A cylinder head gasket 1 is sandwiched between a cylinder head 2 and a cylinder block 3 with a cylinder bore 4 and includes a substrate 10 with a combustion chamber hole 14 drilled at a position of the cylinder bore 4, and seal plates 11 to 13, the substrate 10 and the seal plates are stacked on one another. Fixation members 21 and 22 are secured to the substrate around a periphery of the combustion chamber hole. The seal plate includes an engagement hole 23 formed therein and with which the fixation members are engaged. The engagement hole is engaged with the fixation members. The fixation members are sandwiched between the cylinder head and the cylinder block. The cylinder head and the cylinder block can be firmly coupled together via the fixation members. This allows deformation of the cylinder block caused by explosion pressure in an engine to be suppressed. As a result, possible degradation of sealability can be prevented.Type: ApplicationFiled: July 6, 2009Publication date: April 28, 2011Inventors: Yasumaro Takeda, Toru Takasu, Ryosuke Fujiki, Kazuya Yoshijima, Yoshihiko Masuda
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Publication number: 20100225071Abstract: In a cylinder head gasket including a plurality of seal plates 1 to 4, a combustion gas that is to leak through a gap between the respective seal plates is reliably sealed. The cylinder head gasket includes the plurality of seal plates 1 to 4, which are held between a cylinder head and a cylinder block having a cylinder bore. The plurality of seal plates 1 to 4 are adhered to each other in a circumferentially continuous manner around combustion chamber holes 1a to 4a, and the combustion gas that is to leak through the gap between the respective seal plates is reliably sealed within an adhered portion 5 of the respective seal plates.Type: ApplicationFiled: September 2, 2008Publication date: September 9, 2010Inventors: Shingo Mori, Tomoaki Matsubara, Ryosuke Fujiki
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Patent number: 7047915Abstract: In a cooling unit for an engine comprising a cylinder block 1 having a water jacket 4 which opens into the surface of the cylinder block 1 and which circulates a cooling water in surrounding relationship with a cylinder bore, and a gasket 11 held sandwiched between the cylinder head and the cylinder block 1 to seal therebetween, the gasket 11 is provided with a control board 21 which project into the water jacket 4 for controlling a flow of the cooling water, the control board 21 being formed to be arcuate in conformity to the profile of the water jacket 4 and disposed toward the intake port.Type: GrantFiled: August 26, 2003Date of Patent: May 23, 2006Assignee: Taiho Kogyo Co., Ltd.Inventors: Yukio Kawai, Ryosuke Fujiki, Seiji Ohmura, Yoshikazu Shinpo
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Publication number: 20050268868Abstract: In a cooling unit for an engine comprising a cylinder block 1 having a water jacket 4 which opens into the surface of the cylinder block 1 and which circulates a cooling water in surrounding relationship with a cylinder bore, and a gasket 11 held sandwiched between the cylinder head and the cylinder block 1 to seal therebetween, the gasket 11 is provided with a control board 21 which project into the water jacket 4 for controlling a flow of the cooling water, the control board 21 being formed to be arcuate in conformity to the profile of the water jacket 4 and disposed toward the intake port.Type: ApplicationFiled: August 26, 2003Publication date: December 8, 2005Inventors: Yukio Kawai, Ryosuke Fujiki, Seiji Ohmura, Yoshikazu Shinpo
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Patent number: 6142482Abstract: A cylinder head gasket 1 comprises a pair of gasket baseplates 3 having a combustion chamber opening 3A formed therein, and a spacer 4 disposed around a cylinder bore 2 to surround it in an endless manner and held sandwiched between the pair of gasket baseplates 3. A full bead 3a and a half bead 3b are formed on each gasket baseplate in a region overlapped by the spacer 4, and the spacer as well as the full bead and the half bead are continuously held sandwiched between a cylinder head 5 and a cylinder block 6 along the circumference of the cylinder bore. The spacer allows the full bead and the half bead to be brought into abutment against the mating member under a high surface pressure and over a relatively extensive area of contact, whereby a good sealing performance is obtained in the presence of a gross porosity in the casting or flaw on the mating adjoined surface.Type: GrantFiled: June 2, 1998Date of Patent: November 7, 2000Assignee: Taiho Kogyo Co., Ltd.Inventors: Eisaburo Goto, Ryosuke Fujiki, Kenichi Yamaguchi, Kazuya Nakata, Yoshikazu Shinpo