Patents by Inventor Tohru Irie
Tohru Irie 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: 8091396Abstract: A method for forming a part of deformed cross section with non-rotation symmetry on an end portion of a cylindrical workpiece. The method includes steps of performing a first relative motion of a roller against the workpiece toward its one open end, and performing a second relative motion of the roller against at least a part of outer peripheral surface of the end portion of the workpiece toward the inside thereof, while the roller is rotated relative to the workpiece by one rotation, in such a state as being held to be in contact with the end portion, in a plane which is perpendicular to the moving direction of the first relative motion, and which includes a position where the roller contacts the outer peripheral surface of the end portion, and performing a rotational motion of the roller relatively rotating around the workpiece, while performing the second relative motion, with the roller being held to be in contact with the outer peripheral surface of the end portion.Type: GrantFiled: February 17, 2009Date of Patent: January 10, 2012Assignee: Sango Co., Ltd.Inventors: Tohru Irie, Masashi Ota
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Patent number: 7963138Abstract: A plurality of intermediate cross sections and center points thereof are provided for a plurality of target processed portions from an unprocessed portion of a workpiece up to a final target processed portion. By adjusting a relative position between each intermediate cross section of the workpiece W and rollers 11, 12 revolving around the workpiece between neighboring intermediate cross sections, adjusting a revolution diameter of the roller and an angle of its revolution plane, mating the center point, diameter and inclined angle of the revolution plane inside of a revolving locus of the roller, with the center point, diameter and inclined angle of each intermediate cross section of the workpiece, and driving the roller and workpiece relatively to each other, with a part of outer peripheral surface of the roller being always in contact with an outer peripheral surface of the workpiece, a spinning process is performed to change the diameter of the portion to be processed of the workpiece.Type: GrantFiled: December 9, 2005Date of Patent: June 21, 2011Assignee: Sango Co., Ltd.Inventors: Hitoshi Okada, Tohru Irie
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Publication number: 20090205386Abstract: A method for forming a part of deformed cross section with non-rotation symmetry on an end portion of a cylindrical workpiece. The method includes steps of performing a first relative motion of a roller against the workpiece toward its one open end, and performing a second relative motion of the roller against at least a part of outer peripheral surface of the end portion of the workpiece toward the inside thereof, while the roller is rotated relative to the workpiece by one rotation, in such a state as being held to be in contact with the end portion, in a plane which is perpendicular to the moving direction of the first relative motion, and which includes a position where the roller contacts the outer peripheral surface of the end portion, and performing a rotational motion of the roller relatively rotating around the workpiece, while performing the second relative motion, with the roller being held to be in contact with the outer peripheral surface of the end portion.Type: ApplicationFiled: February 17, 2009Publication date: August 20, 2009Applicant: SANGO CO., LTD.Inventors: Tohru Irie, Masashi Ota
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Publication number: 20080127699Abstract: A plurality of intermediate cross sections and center points thereof are provided for a plurality of target processed portions from an unprocessed portion of a workpiece up to a final target processed portion. By adjusting a relative position between each intermediate cross section of the workpiece W and rollers 11, 12 revolving around the workpiece between neighboring intermediate cross sections, adjusting a revolution diameter of the roller and an angle of its revolution plane, mating the center point, diameter and inclined angle of the revolution plane inside of a revolving locus of the roller, with the center point, diameter and inclined angle of each intermediate cross section of the workpiece, and driving the roller and workpiece relatively to each other, with a part of outer peripheral surface of the roller being always in contact with an outer peripheral surface of the workpiece, a spinning process is performed to change the diameter of the portion to be processed of the workpiece.Type: ApplicationFiled: December 9, 2005Publication date: June 5, 2008Applicant: Sango Co., Ltd.Inventors: Hitoshi Okada, Tohru Irie
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Publication number: 20070033804Abstract: The present invention is directed to a method for producing a fluid treatment device having a honeycomb member in a metallic cylindrical housing with a shock absorbent member wrapped around the honeycomb member. The method comprises the steps of (1) inserting the honeycomb member with the shock absorbent member wrapped around the honeycomb member, into the cylindrical housing, (2) forming a necking portion on at least one end portion of the cylindrical housing, with a body portion thereof being clamped, and (3) reducing a diameter of at least a part of the cylindrical housing with the shock absorbent member received therein, together with the shock absorbent member, to such an extent that a desired inner diameter of the part of the cylindrical housing is provided enough to cause the shock absorbent member to produce a desired holding pressure for holding the honeycomb member in the cylindrical housing.Type: ApplicationFiled: October 20, 2006Publication date: February 15, 2007Applicant: SANGO CO., LTD.Inventors: Akinobu Morikawa, Tohru Irie
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Patent number: 7174635Abstract: A method includes the steps of (1) wrapping a shock absorbent member around a columnar member, (2) supporting one end portion of a cylindrical housing on a support member, (3) arranging the columnar member in a cylindrical guide member formed with the tapered portion inside thereof, (4) inserting the shock absorbent member and the columnar member into the cylindrical housing through the tapered portion, (5) pressing a pushing member to the columnar member so as to be moved along the longitudinal axis thereof relative to the cylindrical housing, to accommodate the shock absorbent member and the columnar member in the cylindrical housing, (6) moving the support member and a shrinking mechanism relative to each other, and (7) actuating the shrinking mechanism to reduce the diameter of a part of the cylindrical housing.Type: GrantFiled: December 20, 2004Date of Patent: February 13, 2007Assignee: Sango Co., Ltd.Inventors: Tohru Irie, Akinobu Morikawa, Yukinori Suzuki
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Patent number: 7174634Abstract: The present invention is directed to a method for producing a fluid treatment device having a honeycomb member in a metallic cylindrical housing with a shock absorbent member wrapped around the honeycomb member. The method comprises the steps of (1) inserting the honeycomb member with the shock absorbent member wrapped around the honeycomb member, into the cylindrical housing, (2) forming a necking portion on at least one end portion of the cylindrical housing, with a body portion thereof being clamped, and (3) reducing a diameter of at least a part of the cylindrical housing with the shock absorbent member received therein, together with the shock absorbent member, to such an extent that a desired inner diameter of the part of the cylindrical housing is provided enough to cause the shock absorbent member to produce a desired holding pressure for holding the honeycomb member in the cylindrical housing.Type: GrantFiled: May 26, 2004Date of Patent: February 13, 2007Assignee: Sango Co., Ltd.Inventors: Akinobu Morikawa, Tohru Irie
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Patent number: 7111392Abstract: The present invention is directed to a method of producing a container such as a catalytic converter for holding a fragile substrate in a cylindrical housing with a shock absorbent member wrapped around the substrate, with an appropriate holding force determined on the basis of frictional force between the shock absorbent member and the one with the smaller coefficient of friction out of the substrate and the cylindrical housing.Type: GrantFiled: August 11, 2003Date of Patent: September 26, 2006Assignee: Sango Co., Ltd.Inventors: Tohru Irie, Akinobu Morikawa
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Publication number: 20050138786Abstract: A method includes the steps of (1) wrapping a shock absorbent member around a columnar member, (2) supporting one end portion of a cylindrical housing on a support member, (3) arranging the columnar member in a cylindrical guide member formed with the tapered portion inside thereof, (4) inserting the shock absorbent member and the columnar member into the cylindrical housing through the tapered portion, (5) pressing a pushing member to the columnar member so as to be moved along the longitudinal axis thereof relative to the cylindrical housing, to accommodate the shock absorbent member and the columnar member in the cylindrical housing, (6) moving the support member and a shrinking mechanism relative to each other, and (7) actuating the shrinking mechanism to reduce the diameter of a part of the cylindrical housing.Type: ApplicationFiled: December 20, 2004Publication date: June 30, 2005Applicant: SANGO CO., LTD.Inventors: Tohru Irie, Akinobu Morikawa, Yukinori Suzuki
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Patent number: 6834245Abstract: The present invention is directed to a method and apparatus for monitoring the status of manufacturing products continuously according to one of a plurality of manufacturing processes. It is determined whether at least a predetermined manufacturing program out of a plurality of manufacturing programs corresponding to the plurality of manufacturing processes has been executed. The number of operations executed for manufacturing products according to the predetermined manufacturing program is stored, when it is determined that the predetermined manufacturing program has been executed. And, the stored number of operations executed for manufacturing the products according to the predetermined manufacturing program is output.Type: GrantFiled: March 26, 2001Date of Patent: December 21, 2004Assignee: Sango Co., Ltd.Inventors: Masahi Ota, Tohru Irie
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Publication number: 20040237305Abstract: The present invention is directed to a method for producing a fluid treatment device having a honeycomb member in a metallic cylindrical housing with a shock absorbent member wrapped around the honeycomb member. The method comprises the steps of (1) inserting the honeycomb member with the shock absorbent member wrapped around the honeycomb member, into the cylindrical housing, (2) forming a necking portion on at least one end portion of the cylindrical housing, with a body portion thereof being clamped, and (3) reducing a diameter of at least a part of the cylindrical housing with the shock absorbent member received therein, together with the shock absorbent member, to such an extent that a desired inner diameter of the part of the cylindrical housing is provided enough to cause the shock absorbent member to produce a desired holding pressure for holding the honeycomb member in the cylindrical housing.Type: ApplicationFiled: May 26, 2004Publication date: December 2, 2004Applicant: SANGO CO., LTD.Inventors: Akinobu Morikawa, Tohru Irie
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Patent number: 6769281Abstract: The present invention is directed to a method of producing a container for holding a columnar member in a cylindrical housing with a shock absorbent member wrapped around the columnar member.Type: GrantFiled: February 28, 2003Date of Patent: August 3, 2004Assignee: Sango Co., Ltd.Inventors: Tohru Irie, Masashi Ota
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Publication number: 20040031149Abstract: The present invention is directed to a method of producing a container such as a catalytic converter for holding a fragile substrate in a cylindrical housing with a shock absorbent member wrapped around the substrate, with an appropriate holding force determined on the basis of frictional force between the shock absorbent member and the one with the smaller coefficient of friction out of the substrate and the cylindrical housing.Type: ApplicationFiled: August 11, 2003Publication date: February 19, 2004Applicant: Sango Co., Ltd.Inventors: Tohru Irie, Akinobu Morikawa
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Publication number: 20030167854Abstract: The present invention is directed to a method of producing a container for holding a columnar member in a cylindrical housing with a shock absorbent member wrapped around the columnar member.Type: ApplicationFiled: February 28, 2003Publication date: September 11, 2003Applicant: SANGO CO., LTD.Inventors: Tohru Irie, Masashi Ota
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Patent number: 6591498Abstract: The present invention is directed to a method of producing a catalytic converter which comprises the steps of providing a shock absorbent member around an outer periphery of a catalyst substrate, inserting the catalyst substrate and the shock absorbent member into a cylindrical workpiece, fixing the cylindrical workpiece to prevent the cylindrical workpiece from being rotated about a longitudinal axis thereof, reducing a diameter of a body portion of the cylindrical workpiece covering at least a portion of the shock absorbent member to hold the catalyst substrate in the cylindrical workpiece, spinning at least an end portion of the cylindrical workpiece, by means of a plurality of spinning rollers, which are evenly positioned around the outer periphery of the end portion, and which are revolved about the axis of the end portion along a common circular locus, and moved in a radial direction of the end portion, and moving the plurality of spinning rollers in an axial direction of the end portion to reduce a diaType: GrantFiled: March 22, 2002Date of Patent: July 15, 2003Assignee: Sango Co., Ltd.Inventors: Tohru Irie, Masashi Ota
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Patent number: 6530256Abstract: There are disclosed an expanded tube processing method and expanded tube processing apparatus of a cylindrical tube, for inclining an opening end portion of a work formed of the cylindrical tube of metal with respect to an axis of a work to perform tube expansion, in which in order to simply perform an expanded tube processing, a punch is disposed on an opening end side of the work of the metal cylindrical tube and the punch is inserted from the work opening end to perform the tube expansion on a work end. A punch 18 is inserted from the work opening end at a predetermined angle to a tube axis A of a work 6. During insertion of the punch 18, the punch 18 and/or the work 6 are moved in a direction Y1-Y2 substantially crossing at right angles to an advancing/retreating drive direction Z1-Z2 of the punch 18 to perform the expanded tube processing.Type: GrantFiled: February 20, 2001Date of Patent: March 11, 2003Assignee: Sango Co., Ltd.Inventors: Tohru Irie, Akinobu Morikawa, Hisashi Hayakawa
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Publication number: 20020095787Abstract: The present invention is directed to a method of producing a catalytic converter which comprises the steps of providing a shock absorbent member around an outer periphery of a catalyst substrate, inserting the catalyst substrate and the shock absorbent member into a cylindrical workpiece, fixing the cylindrical workpiece to prevent the cylindrical workpiece from being rotated about a longitudinal axis thereof, reducing a diameter of a body portion of the cylindrical workpiece covering at least a portion of the shock absorbent member to hold the catalyst substrate in the cylindrical workpiece, spinning at least an end portion of the cylindrical workpiece, by means of a plurality of spinning rollers, which are evenly positioned around the outer periphery of the end portion, and which are revolved about the axis of the end portion along a common circular locus, and moved in a radial direction of the end portion, and moving the plurality of spinning rollers in an axial direction of the end portion to reduce a diaType: ApplicationFiled: March 22, 2002Publication date: July 25, 2002Applicant: Sango Co., Ltd.Inventors: Tohru Irie, Masashi Ota
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Patent number: 6386010Abstract: According to the spinning processing method of the invention, a steel tube (4) as a work is rotated round its longitudinal axis (X). A plurality of forming rollers (23), which are arranged around the steel tube (4), are rotated round the steel tube axis (X) in the direction (&bgr;) opposite to the direction of rotation for the steel tube (4). The forming rollers 23 are further moved toward the steel tube axis (X) into pressure contact with the steel tube (4), while being moved relatively to the steel tube (4) in the axial direction (A-B) thereof, to draw the steel tube (4) to form a section of reduced diameter. The relative rotation of the steel tube (4) and the forming rollers (23) in the opposite directions (&agr;, &bgr;) increases the relative rotation speed between them and shortens the processing time.Type: GrantFiled: March 21, 2000Date of Patent: May 14, 2002Assignee: Sango Co., Ltd.Inventors: Tohru Irie, Masashi Ota
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Patent number: 6381843Abstract: A method of producing a catalytic converter comprises the steps of (1) providing a shock absorbent member around an outer periphery of a catalyst substrate, (2) inserting the catalyst substrate and the shock absorbent member into a cylindrical workpiece, fixing the cylindrical workpiece to prevent the cylindrical workpiece from being rotated about a longitudinal axis thereof, and (3) spinning at least a portion of the cylindrical workpiece covering at least a portion of the shock absorbent member, by means of a plurality of spinning rollers, which are evenly positioned around the outer periphery of the cylindrical workpiece, and which are revolved about the axis of the cylindrical workpiece along a common circular locus, and moved in a radial direction of the cylindrical workpiece, whereby the cylindrical workpiece and the shock absorbent member are reduced in diameter, so that the catalyst substrate is securely held in the cylindrical workpiece.Type: GrantFiled: July 31, 2000Date of Patent: May 7, 2002Assignee: Sango Co., Ltd.Inventors: Tohru Irie, Masashi Ota
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Patent number: D452694Type: GrantFiled: October 12, 1999Date of Patent: January 1, 2002Assignee: Sango Co., Ltd.Inventor: Tohru Irie