Patents by Inventor Naoji Yamamoto
Naoji Yamamoto 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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Publication number: 20220251886Abstract: A door latch device includes: a rotating body; first and second levers; a lock mechanism on which an unlocking operation is performed and an open link is disposed in an unlocked position; and a latch mechanism. Further, the lock mechanism includes a lock lever which causes the open link to rotate when being operated by rotation of the rotating body, the rotating body is provided with two tilted walls so as to move the open link to the unlocked position when being rotated in one side from a reference position. while the open link is disposed in a locked position, keep the open link in the unlocked position when being rotated in another side to the reference position while the open link is disposed in the unlocked position, and move the open link to the locked position when being further rotated in the another side.Type: ApplicationFiled: April 27, 2022Publication date: August 11, 2022Inventors: Shunsuke TAMURA, Naoji Yamamoto
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Patent number: 8236088Abstract: Providing a metal mold repair method and a metal mold repair paste agent which are capable of repairing cracks with simple work. A repair paste agent containing components that become an alloy is directly applied to a surface of a metal mold having a crack so as to cover the crack part, subsequently a surface of the repair paste agent is coated with an oxidation inhibitor and the repair paste agent is made to penetrate the inside of the crack by heating and becomes an alloy, thereby filling up the crack.Type: GrantFiled: March 3, 2011Date of Patent: August 7, 2012Assignee: Honda Motor Co., Ltd.Inventors: Michiharu Hasegawa, Noriyuki Miyazaki, Masafumi Nakamura, Naoji Yamamoto, Kazuo Ueda
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Publication number: 20120058004Abstract: Providing a metal mold repair method and a metal mold repair paste agent which are capable of repairing cracks with simple work. A repair paste agent containing components that become an alloy is directly applied to a surface of a metal mold having a crack so as to cover the crack part, subsequently a surface of the repair paste agent is coated with an oxidation inhibitor and the repair paste agent is made to penetrate the inside of the crack by heating and becomes an alloy, thereby filling up the crack.Type: ApplicationFiled: March 3, 2011Publication date: March 8, 2012Inventors: Michiharu HASEGAWA, Noriyuki Miyazaki, Masafumi Nakamura, Naoji Yamamoto, Kazuo Ueda
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Patent number: 7927653Abstract: Providing a metal mold repair method and a metal mold repair paste agent which are capable of repairing cracks with simple work. A repair paste agent containing components that become an alloy is directly applied to a surface of a metal mold having a crack so as to cover the crack part, subsequently a surface of the repair paste agent is coated with an oxidation inhibitor and the repair paste agent is made to penetrate the inside of the crack by heating and becomes an alloy, thereby filling up the crack.Type: GrantFiled: November 6, 2006Date of Patent: April 19, 2011Assignee: Honda Motor Co., Ltd.Inventors: Michiharu Hasegawa, Noriyuki Miyazaki, Masafumi Nakamura, Naoji Yamamoto, Kazuo Ueda
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Publication number: 20100159130Abstract: Providing a metal mold repair method and a metal mold repair paste agent which are capable of repairing cracks with simple work. A repair paste agent containing components that become an alloy is directly applied to a surface of a metal mold having a crack so as to cover the crack part, subsequently a surface of the repair paste agent is coated with an oxidation inhibitor and the repair paste agent is made to penetrate the inside of the crack by heating and becomes an alloy, thereby filling up the crack.Type: ApplicationFiled: November 6, 2006Publication date: June 24, 2010Inventors: Michiharu Hasegawa, Noriyuki Miyazaki, Masafumi Nakamura, Naoji Yamamoto, Kazuo Ueda
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Publication number: 20090314448Abstract: A method for producing a metal material involves applying, to the surface of the ZAS alloy, an agent comprising a solvent and, dispersed therein, a material containing Cu such as Cu powder and a Cu—Mn alloy powder and preferably, dispersed or dissolved therein, a reducing agent capable of reducing an oxide film present on the surface of the ZAS alloy, and heating the ZAS alloy having the agent applied thereon, to thereby diffuse Cu into the alloy. The metal material comprises a Zn—Al—Sn based alloy (ZAS alloy) and Cu diffused in the alloy, wherein Cu is diffused into the inside of the alloy to a depth from the surface of 0.5 mm or more, the concentration of Cu decreases from the surface of the ZAS alloy towards the inside thereof, and there is present no specific interface between Cu and the ZAS alloy.Type: ApplicationFiled: August 26, 2009Publication date: December 24, 2009Inventors: Mitsuo Kuwabara, Tadashi Okada, Naoji Yamamoto, Masahito Hasuike, Michiharu Hasegawa, Tetsuaki Aoki, Masanori Kogawa, Kazunori Sakamoto, Keizou Tanoue
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Patent number: 7601389Abstract: A metal material comprises a Zn—Al—Sn based alloy (ZAS alloy) and Cu diffused in the alloy, wherein Cu is diffused into the inside of the alloy to a depth from the surface of 0.5 mm or more, the concentration of Cu decreases from the surface of the ZAS alloy towards the inside thereof, and there is present no specific interface between Cu and the ZAS alloy; and a method for producing the metal material involves applying, to the surface of the ZAS alloy, an agent comprising a solvent and, dispersed therein, a material containing Cu such as a Cu powder and a Cu—Mn alloy powder and preferably, dispersed or dissolved therein, a reducing agent capable of reducing an oxide film present on the surface of the ZAS alloy, and heating the ZAS alloy having the agent applied thereon, to thereby diffuse Cu into the alloy.Type: GrantFiled: July 31, 2003Date of Patent: October 13, 2009Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Mitsuo Kuwabara, Tadashi Okada, Naoji Yamamoto, Masahito Hasuike, Hideo Yoshikawa, Michiharu Hasegawa, Tetsuaki Aoki, Masanori Kogawa, Kazunori Sakamoto, Keizou Tanoue
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Patent number: 7497243Abstract: A mold for casting primarily of SMC420, wherein a cavity forming portion comprising maraging steel, which has the toughness and the resistance to heat shock superior to those of SMC420, is provided in a vertical wall heading for a cavity surface from a molten metal inlet and a portion nearest to the molten metal inlet in the cavity surface, which are portions suffering relatively large heat shock in the contact with a molten metal. Also provided is a method for providing the cavity forming portion, which comprises filling a concave portion of the mold with a molten metal prepared by melting a welding rod by arc welding, in other words, carrying out an overlaying welding, and then cooling and solidifying the molten metal.Type: GrantFiled: October 28, 2003Date of Patent: March 3, 2009Assignee: Honda Motor Co., Ltd.Inventors: Hiroaki Koyama, Toshihiro Miyauchi, Yasuhiro Shimamura, Michiharu Hasegawa, Naoji Yamamoto, Masahito Hasuike, Noriyuki Miyazaki, Hiroaki Tohyama
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Publication number: 20060151139Abstract: A mold for casting primarily of SMC420, wherein a cavity forming portion comprising maraging steel, which has the toughness and the resistance to heat shock superior to those of SMC420, is provided in a vertical wall heading for a cavity surface from a molten metal inlet and a portion nearest to the molten metal inlet in the cavity surface, which are portions suffering relatively large heat shock in the contact with a molten metal. Also provided is a method for providing the cavity forming portion, which comprises filling a concave portion of the mold with a molten metal prepared by melting a welding rod by arc welding, in other words, carrying our an overlaying welding, and then cooling and solidifying the molten metal.Type: ApplicationFiled: October 28, 2003Publication date: July 13, 2006Inventors: Hiroaki Koyama, Toshihiro Miyauchi, Yasuhiro Shimamura, Michiharu Hasegawa, Naoji Yamamoto, Masahito Hasuike, Noriyuki Miyazaki, Hiroaki Tohyama
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Publication number: 20060134453Abstract: A metal material comprises a Zn—Al—Sn based alloy (ZAS alloy) and Cu diffused in the alloy, wherein Cu is diffused into the inside of the alloy to a depth from the surface of 0.5 mm or more, the concentration of Cu decreases from from the surface of the ZAS alloy towards the inside thereof, and there is present no specific interface between Cu and the ZAS alloy; and a method for producing the metal material involves applying, to the surface of the ZAS alloy, an agent comprising a solvent and, dispersed therein, a material containing Cu such as a Cu powder and a Cu—Mn alloy powder and preferably, dispersed or dissolved therein, a reducing agent capable of reducing an oxide film present on the surface of the ZAS alloy, and heating the ZAS alloy having the agent applied thereon, to thereby diffuse Cu into the alloy.Type: ApplicationFiled: July 31, 2003Publication date: June 22, 2006Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Mitsuo Kuwabara, Tadashi Okada, Naoji Yamamoto, Masahito Hasuike, Hideo Yoshikawa, Michiharu Hasegawa, Tetsuaki Aoki, Masanori Kogawa, Kazunori Sakamoto, Keizou Tanoue