Patents by Inventor Norihiro Amano
Norihiro Amano 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: 9700935Abstract: There are provided a manufacturing method of a casting capable of easily manufacturing a casting having a complex form and of increasing the degree of freedom of form of the casting to be manufactured, a manufacturing device thereof and a casting. At the time of forming a casting by drawing out molten metal from a bath surface of a molten metal bath and solidifying the molten metal which has been drawn out, an outer contour unit configured from a plurality of outer contour defining members for defining the outer contour of a casting is arranged in a region between the bath surface of the molten meth bath and a solid region where the molten metal is solidified and the molten metal which has been drawn out from the bath surface is drawn out through a region determined by the outer contour unit, and the form of the casting is changed by moving at least one of the plurality of outer contour defining members according to the drawing out of the molten metal.Type: GrantFiled: March 13, 2013Date of Patent: July 11, 2017Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Yu Sasaki, Yuichi Furukawa, Norihiro Amano, Jun Yaokawa, Yasushi Iwata, Yoshio Sugiyama
-
Patent number: 9457396Abstract: A free casting method according to the present invention includes, a lead-out step for leading out molten metal from a lead-out area (P) provided in a source of supply, e.g. a surface level of the molten metal, to retain the molten metal temporarily by surface films (F) generated on an outer surface, and a forming step for obtaining a formed body by solidifying retained molten metal (MS) led out along a set passage (L1) depending on a desired casting shape, wherein the retained molten metal is solidified after being formed into the desired casting shape by applying an external force thereto at positions between an unrestrained root portion of the retained molten metal in vicinity of the surface level of the molten metal and a solidification interface defined as a boundary between the retained molten metal and the formed body in the forming step.Type: GrantFiled: March 11, 2015Date of Patent: October 4, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Jun Yaokawa, Yasushi Iwata, Yoshio Sugiyama, Hiroaki Iwahori, Norihiro Amano, Noriyuki Ueno, Takehito Kobayashi
-
Patent number: 9120146Abstract: A free casting method according to the present invention includes, a lead-out step for leading out molten metal from a lead-out area provided in a source of supply, e.g. a surface level of the molten metal, to retain the molten metal temporarily by surface films generated on an outer surface, and a forming step for obtaining a formed body by solidifying retained molten metal led out along a set passage depending on a desired casting shape, wherein the retained molten metal is solidified after being formed into the desired casting shape by applying an external force thereto at positions between an unrestrained root portion of the retained molten metal in vicinity of the surface level of the molten metal and a solidification interface defined as a boundary between the retained molten metal and the formed body in the forming step.Type: GrantFiled: September 12, 2011Date of Patent: September 1, 2015Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Jun Yaokawa, Yasushi Iwata, Yoshio Sugiyama, Hiroaki Iwahori, Norihiro Amano, Noriyuki Ueno, Takehito Kobayashi
-
Publication number: 20150239038Abstract: A free casting method according to the present invention includes, a lead-out step for leading out molten metal from a lead-out area (P) provided in a source of supply, e.g. a surface level of the molten metal, to retain the molten metal temporarily by surface films (F) generated on an outer surface, and a forming step for obtaining a formed body by solidifying retained molten metal (MS) led out along a set passage (L1) depending on a desired casting shape, wherein the retained molten metal is solidified after being formed into the desired casting shape by applying an external force thereto at positions between an unrestrained root portion of the retained molten metal in vicinity of the surface level of the molten metal and a solidification interface defined as a boundary between the retained molten metal and the formed body in the forming step.Type: ApplicationFiled: March 11, 2015Publication date: August 27, 2015Inventors: Jun YAOKAWA, Yasushi IWATA, Yoshio SUGIYAMA, Hiroaki IWAHORI, Norihiro AMANO, Noriyuki UENO, Takehito KOBAYASHI
-
Publication number: 20150071817Abstract: There are provided a manufacturing method of a casting capable of easily manufacturing a casting having a complex form and of increasing the degree of freedom of form of the casting to be manufactured, a manufacturing device thereof and a casting. At the time of forming a casting by drawing out molten metal from a bath surface of a molten metal bath and solidifying the molten metal which has been drawn out, an outer contour unit configured from a plurality of outer contour defining members for defining the outer contour of a casting is arranged in a region between the bath surface of the molten meth bath and a solid region where the molten metal is solidified and the molten metal which has been drawn out from the bath surface is drawn out through a region determined by the outer contour unit, and the form of the casting is changed by moving at least one of the plurality of outer contour defining members according to the drawing out of the molten metal.Type: ApplicationFiled: March 13, 2013Publication date: March 12, 2015Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Yu Sasaki, Yuichi Furukawa, Norihiro Amano, Jun Yaokawa, Yasushi Iwata, Yoshio Sugiyama
-
Patent number: 8712750Abstract: A molten alloy solidification analyzing method of the invention is characterized in that the amount of change in fraction solid is calculated based on the solidification rate of molten alloy and the solidification rate parameter that is a parameter for evaluating the influence of the solidification rate on solidification of the molten alloy, according to the fraction solid. By conducting such a simulation that takes into consideration the supercooling, a highly accurate solidification analysis is relatively easily performed for various molten alloys.Type: GrantFiled: December 3, 2009Date of Patent: April 29, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Jun Yaokawa, Yasushi Iwata, Shuxin Dong, Yoshio Sugiyama, Hiroaki Iwahori, Takashi Nakamichi, Norihiro Amano, Hiroyuki Ikuta
-
Publication number: 20130171021Abstract: A free casting method according to the present invention includes, a lead-out step for leading out molten metal from a lead-out area provided in a source of supply, e.g. a surface level of the molten metal, to retain the molten metal temporarily by surface films generated on an outer surface, and a forming step for obtaining a formed body by solidifying retained molten metal led out along a set passage depending on a desired casting shape, wherein the retained molten metal is solidified after being formed into the desired casting shape by applying an external force thereto at positions between an unrestrained root portion of the retained molten metal in vicinity of the surface level of the molten metal and a solidification interface defined as a boundary between the retained molten metal and the formed body in the forming step.Type: ApplicationFiled: September 12, 2011Publication date: July 4, 2013Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Jun Yaokawa, Yasushi Iwata, Yoshio Sugiyama, Hiroaki Iwahori, Norihiro Amano, Noriyuki Ueno, Takehito Kobayashi
-
Patent number: 8104528Abstract: A vacuum die casting method according to the present invention solves the problems relating to seal performance, differential pressure, and the stability of the degree of vacuum. The method carries out the casting with a casting cavity evacuated. In the method, a molten metal is poured from a molten metal inlet of a plunger sleeve, followed by forming a vacuum chamber surrounding the inlet and an open end of the plunger sleeve located on the opposite side of the die, and an evacuation of the vacuum chamber and the cavity starts before starting an operation of a plunger tip. When the evacuation starts, the plunger tip is positioned between the open end of the plunger sleeve and the inlet so that the vacuum chamber is communicated to the inside of the plunger sleeve through the inlet.Type: GrantFiled: October 11, 2007Date of Patent: January 31, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shoichi Tsuchiya, Norihiro Amano
-
Publication number: 20110264425Abstract: A molten alloy solidification analyzing method of the invention is characterized in that the amount of change in fraction solid is calculated based on the solidification rate of molten alloy and the solidification rate parameter that is a parameter for evaluating the influence of the solidification rate on solidification of the molten alloy, according to the fraction solid. By conducting such a simulation that takes into consideration the supercooling, a highly accurate solidification analysis is relatively easily performed for various molten alloys.Type: ApplicationFiled: December 3, 2009Publication date: October 27, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Jun Yaokawa, Yasushi Iwata, Shuxin Dong, Yoshio Sugiyama, Hiroaki Iwahori, Takashi Nakamichi, Norihiro Amano, Hiroyuki Ikuta
-
Publication number: 20090194246Abstract: A vacuum die casting method according to the present invention solves the problems relating to seal performance, differential pressure, and the stability of the degree of vacuum. The method carries out the casting with a casting cavity evacuated. In the method, a molten metal is poured from a molten metal inlet of a plunger sleeve, followed by forming a vacuum chamber surrounding the inlet and an open end of the plunger sleeve located on the opposite side of the die, and an evacuation of the vacuum chamber and the cavity starts before starting an operation of a plunger tip. When the evacuation starts, the plunger tip is positioned between the open end of the plunger sleeve and the inlet so that the vacuum chamber is communicated to the inside of the plunger sleeve through the inlet.Type: ApplicationFiled: October 11, 2007Publication date: August 6, 2009Inventors: Shoichi Tsuchiya, Norihiro Amano
-
Publication number: 20020124815Abstract: In a cylinder head, a cooling water passage with a circular shape (an elliptical shape) in cross section in radial direction is formed at an area (lower layer deck) closer to a combustion chamber than a water jacket in which a cooling water flows.Type: ApplicationFiled: February 27, 2002Publication date: September 12, 2002Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Fumihisa Ishiguro, Hiroyuki Ikuta, Norihiro Amano
-
Patent number: 5739505Abstract: In an electric furnace including a heating device which includes a cooling water passage for cooling the heating device to prevent the heating device from melting, estimation of a molten metal temperature in the electric furnace using a heat equilibrium model is conducted taking into account a thermal loss by the cooling water, i.e., the amount of a heat taken away by the cooling water. Further, the amount of the cooling water flowing through the heating device is adjusted so that the thermal loss by the cooling water is in a predetermined optimum thermal loss range.Type: GrantFiled: November 20, 1996Date of Patent: April 14, 1998Assignee: Toyota Jidosha Kabushiki KaishaInventors: Tamotsu Hasegawa, Norihiro Amano, Katsuhito Yamada, Masuji Oshima