Patents by Inventor Kensuke DOI
Kensuke DOI 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).
-
Patent number: 11821385Abstract: A chain cover includes a first member, which is made of a hard plastic, and a second member, which is made of a material different from the hard plastic. The first member is formed by insert molding with the second member as an insert. A first joint surface is formed in a peripheral portion around an insertion hole. The first joint surface is joined to the first member. The first joint surface includes a first joint portion, which includes a lattice-shaped recess portion, and a second joint portion, which includes grooves. The grooves extend in a direction in which the peripheral portion extends, while being arranged in an intersecting direction, which intersects with the extending direction. The second joint portion is provided to be closer to a space adjacent to the peripheral portion than the first joint portion.Type: GrantFiled: June 29, 2021Date of Patent: November 21, 2023Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kensuke Doi, Yoji Horiuchi, Hideto Morishita
-
Patent number: 11808234Abstract: A chain cover includes a first member, which is made of a hard plastic, and a second member, which is made of a material different from the hard plastic. The first member includes a back face, which faces an engine main body. The second member is joined to the first member. Only the back face of the first member includes a groove, which receives a seal member. The seal member provides a seal between the first member and the engine main body.Type: GrantFiled: June 29, 2021Date of Patent: November 7, 2023Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kensuke Doi, Yoji Horiuchi
-
Publication number: 20230272759Abstract: A chain cover includes a first member, which is made of a hard plastic, and a second member, which is made of a material different from the hard plastic. The first member is formed by insert molding with the second member as an insert. A first joint surface is formed in a peripheral portion around an insertion hole. The first joint surface is joined to the first member. The first joint surface includes a first joint portion, which includes a lattice-shaped recess portion, and a second joint portion, which includes grooves. The grooves extend in a direction in which the peripheral portion extends, while being arranged in an intersecting direction, which intersects with the extending direction. The second joint portion is provided to be closer to a space adjacent to the peripheral portion than the first joint portion.Type: ApplicationFiled: June 29, 2021Publication date: August 31, 2023Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kensuke DOI, Yoji HORIUCHI, Hideto MORISHITA
-
Publication number: 20230193850Abstract: A chain cover includes a first member, which is made of a hard plastic, and a second member, which is made of a material different from the hard plastic. The first member includes a back face, which faces an engine main body. The second member is joined to the first member. Only the back face of the first member includes a groove, which receives a seal member. The seal member provides a seal between the first member and the engine main body.Type: ApplicationFiled: June 29, 2021Publication date: June 22, 2023Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kensuke DOI, Yoji HORIUCHI
-
Publication number: 20220154637Abstract: A cover for an internal combustion engine is configured to be attached to an engine main body so as to cover a timing chain or a timing belt. The cover for the internal combustion engine includes insertion holes configured to receive a crankshaft or a camshaft. The cover for the internal combustion engine includes a first member made of a hard plastic and a second member made of a material different from the hard plastic. The first member is produced by insert molding with the second member embedded in the first member. A periphery of at least one of the insertion holes in the second member includes a joint surface that is joined to the first member. The joint surface includes annular grooves surrounding the insertion hole, the annular grooves being arranged in a radial direction of the insertion hole.Type: ApplicationFiled: November 9, 2021Publication date: May 19, 2022Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kensuke DOI, Yoji HORIUCHI, Hideto MORISHITA
-
Patent number: 11242820Abstract: A chain cover is configured to cover a timing chain that transmits rotation of a crankshaft of an internal combustion engine to a camshaft. The chain cover includes a crankshaft-side opening forming portion that defines a crankshaft-side opening into which the crankshaft is inserted, and a general portion that is a section different from the crankshaft-side opening forming portion. The crankshaft-side opening forming portion is made of a first material. The general portion is made of a second material. The first material and the second material are different from each other.Type: GrantFiled: June 11, 2020Date of Patent: February 8, 2022Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kensuke Doi, Yoji Horiuchi, Hideto Morishita
-
Patent number: 10876448Abstract: An oil mist separator includes a case, an oil collecting portion, and a gradual change portion. The case includes a case main body, an inlet for blow-by gas provided on an upstream side of the case main body in a flowing direction of the blow-by gas, and an outlet for blow-by gas provided on a downstream side in the flowing direction of the case main body. The oil collecting portion is accommodated in the case main body. The gradual change portion is provided in the case and is located in at least one of a space between the inlet and the oil collecting portion in the flowing direction and a space between the oil collecting portion and the outlet in the flowing direction. A cross-sectional flow area of the gradual change portion is gradually decreased as a distance from the oil collecting portion in the flowing direction increases.Type: GrantFiled: August 14, 2019Date of Patent: December 29, 2020Assignee: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Kensuke Doi
-
Publication number: 20200400095Abstract: A chain cover is configured to cover a timing chain that transmits rotation of a crankshaft of an internal combustion engine to a camshaft. The chain cover includes a crankshaft-side opening forming portion that defines a crankshaft-side opening into which the crankshaft is inserted, and a general portion that is a section different from the crankshaft-side opening forming portion. The crankshaft-side opening forming portion is made of a first material. The general portion is made of a second material. The first material and the second material are different from each other.Type: ApplicationFiled: June 11, 2020Publication date: December 24, 2020Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Kensuke DOI, Yoji HORIUCHI, Hideto MORISHITA
-
Publication number: 20200063619Abstract: An oil mist separator includes a case, an oil collecting portion, and a gradual change portion. The case includes a case main body, an inlet for blow-by gas provided on an upstream side of the case main body in a flowing direction of the blow-by gas, and an outlet for blow-by gas provided on a downstream side in the flowing direction of the case main body. The oil collecting portion is accommodated in the case main body. The gradual change portion is provided in the case and is located in at least one of a space between the inlet and the oil collecting portion in the flowing direction and a space between the oil collecting portion and the outlet in the flowing direction. A cross-sectional flow area of the gradual change portion is gradually decreased as a distance from the oil collecting portion in the flowing direction increases.Type: ApplicationFiled: August 14, 2019Publication date: February 27, 2020Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHAInventor: Kensuke DOI