Patents by Inventor Kaoru Hirotani
Kaoru Hirotani 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: 9475111Abstract: A product including a top surface part, a vertical wall part connected to an end of the top surface part and a corner part interposed between the top surface part and the vertical wall part is manufactured by flowing a material of the corner part toward the top surface part while applying a pressing force on a workpiece.Type: GrantFiled: April 26, 2012Date of Patent: October 25, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Takashi Tsuchiya, Teruo Kamada, Daisuke Yamamoto, Kaoru Hirotani, Kenji Matsutani
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Patent number: 9321091Abstract: A side panel including a first member and a second member having a higher strength is manufactured by arranging a corner portion of the second member in a recessed portion of the first member, and by simultaneously press-working the first member and the second member.Type: GrantFiled: April 25, 2012Date of Patent: April 26, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Takashi Tsuchiya, Teruo Kamada, Daisuke Yamamoto, Kaoru Hirotani, Kenji Matsutani
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Patent number: 9003956Abstract: A fluid cylinder mechanism (1) equipped with a cylinder (10) having a base end (12) and an open end (11), and a piston (20) having a flange portion (21) disposed inside the cylinder and a rod portion (25) that passes through the open end of the cylinder, in which a space inside the cylinder is partitioned by the flange portion of the piston into a first pressured chamber (14) on a side of the base end and a second pressurized chamber (15) on a side of the open end, is characterized by including: a first flow path (22) that permits flow of a fluid from the first pressurized chamber to the second pressurized chamber; a second flow path (32) that permits flow of the fluid from the second pressurized chamber to the first pressurized chamber; and an opening and closing means (35) for opening and closing the second flow path.Type: GrantFiled: June 21, 2011Date of Patent: April 14, 2015Assignees: Honda Motor Co., Ltd., Barnes Group Inc.Inventors: Kaoru Hirotani, Darrell Quander, Steven Reilly
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Publication number: 20120325082Abstract: A fluid cylinder mechanism (1) equipped with a cylinder (10) having a base end (12) and an open end (11), and a piston (20) having a flange portion (21) disposed inside the cylinder and a rod portion (25) that passes through the open end of the cylinder, in which a space inside the cylinder is partitioned by the flange portion of the piston into a first pressured chamber (14) on a side of the base end and a second pressurized chamber (15) on a side of the open end, is characterized by including: a first flow path (22) that permits flow of a fluid from the first pressurized chamber to the second pressurized chamber; a second flow path (32) that permits flow of the fluid from the second pressurized chamber to the first pressurized chamber; and an opening and closing means (35) for opening and closing the second flow path.Type: ApplicationFiled: June 21, 2011Publication date: December 27, 2012Applicants: BARNES GROUP INC., HONDA MOTOR CO., LTD.Inventors: Kaoru Hirotani, Darrell Quander, Steven Reilly
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Publication number: 20120279273Abstract: A product including a top surface part, a vertical wall part connected to an end of the top surface part and a corner part interposed between the top surface part and the vertical wall part is manufactured by flowing a material of the corner part toward the top surface part while applying a pressing force on a workpiece.Type: ApplicationFiled: April 26, 2012Publication date: November 8, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Takashi Tsuchiya, Teruo Kamada, Daisuke Yamamoto, Kaoru Hirotani, Kenji Matsutani
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Publication number: 20120272707Abstract: A side panel including a first member and a second member having a higher strength is manufactured by arranging a corner portion of the second member in a recessed portion of the first member, and by simultaneously press-working the first member and the second member.Type: ApplicationFiled: April 25, 2012Publication date: November 1, 2012Applicant: HONDA MOTOR CO., LTD.Inventors: Takashi Tsuchiya, Teruo Kamada, Daisuke Yamamoto, Kaoru Hirotani, Kenji Matsutani
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Patent number: 8250896Abstract: A movable die is provided to be displaceable in an upper die. When the upper die is moved downward to press a steel plate together with a lower die, only the movable die first abuts on the steel plate to carry out forming together with the lower die. Then, the upper die is further moved downward to form a part which has not been formed by the movable die.Type: GrantFiled: January 25, 2010Date of Patent: August 28, 2012Assignee: Honda Motor Co., Ltd.Inventor: Kaoru Hirotani
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Patent number: 8167604Abstract: A fluid spring is provided with a sleeve, a first chamber configured to accommodate a fluid and formed in the sleeve, a hollow piston rod, a second chamber configured to accommodate the fluid and formed in the hollow piston rod, and a communicating passage configured to make the first chamber and the second chamber communicate with each other and formed in an end portion of the hollow piston rod. A part of the hollow piston rod is displacably accommodated in the first chamber. The communicating passage only permits the fluid to flow in a direction from the first chamber to the second chamber.Type: GrantFiled: June 2, 2009Date of Patent: May 1, 2012Assignee: Honda Motor Co., Ltd.Inventor: Kaoru Hirotani
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Publication number: 20100186475Abstract: A movable die is provided to be displaceable in an upper die. When the upper die is moved downward to press a steel plate together with a lower die, only the movable die first abuts on the steel plate to carry out forming together with the lower die. Then, the upper die is further moved downward to form a part which has not been formed by the movable die.Type: ApplicationFiled: January 25, 2010Publication date: July 29, 2010Applicant: HONDA MOTOR CO., LTD.Inventor: Kaoru Hirotani
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Publication number: 20090311361Abstract: A fluid spring is provided with a sleeve, a first chamber configured to accommodate a fluid and formed in the sleeve, a hollow piston rod, a second chamber configured to accommodate the fluid and formed in the hollow piston rod, and a communicating passage configured to make the first chamber and the second chamber communicate with each other and formed in an end portion of the hollow piston rod. A part of the hollow piston rod is displacably accommodated in the first chamber. The communicating passage only permits the fluid to flow in a direction from the first chamber to the second chamber.Type: ApplicationFiled: June 2, 2009Publication date: December 17, 2009Applicant: Honda Motor Co., Ltd.Inventor: Kaoru Hirotani