Patents by Inventor Nobumoto Ishiki
Nobumoto Ishiki 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: 11980929Abstract: A manufacturing method is provided for a hollow rack bar made of a hollow shaft material and including a toothed section which has a rack on an outer surface and a shaft section which is thinner than the toothed section. The manufacturing method includes: (i) drawing the hollow shaft material using a die and a plug, and preforming regions of the hollow shaft material including a toothed section formation region configured to become the toothed section and a shaft section formation region configured to become the shaft section so as to have thicknesses according to the respective regions; and (ii) forming the rack at the toothed section formation region of the hollow shaft material which is preformed.Type: GrantFiled: November 15, 2018Date of Patent: May 14, 2024Assignee: NETUREN CO., LTD.Inventors: Toshifumi Uemoto, Nobumoto Ishiki, Takashi Yamawaki
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Publication number: 20200277002Abstract: A manufacturing method for a hollow rack bar made of a hollow shaft material and including a toothed section which has a rack on an outer surface and a shaft section which is formed thinner than the toothed section, the manufacturing method includes drawing the hollow shaft material by using a die and a plug, and preforming regions of the hollow shaft material including a toothed section forming region configured to form the toothed section and a shaft section forming region configured to form the shaft section to have thicknesses according to the regions respectively, and forming the rack at the toothed section forming region of the hollow shaft material which is preformed.Type: ApplicationFiled: November 15, 2018Publication date: September 3, 2020Applicant: NETUREN CO., LTD.Inventors: Toshifumi UEMOTO, Nobumoto ISHIKI, Takashi YAMAWAKI
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Publication number: 20200139494Abstract: A method for manufacturing a rack bar includes joining axial end portions of first and second bar members to each other, and forming a power transmission section on the second bar member. The first bar member has a toothed portion. When the second bar member is hollow, the method may further include thickening a wall of a portion of the second bar member along the axial direction so as to be coaxial with the first bar member. When the second bar member has a greater diameter than the first bar member, the method may further include cutting an outside diameter of a portion of the second bar member in the axial direction so as to be coaxial with the first bar member. The power transmission section is formed on the portion of the second bar member where the wall has been thickened and/or the outside diameter has been cut.Type: ApplicationFiled: December 11, 2019Publication date: May 7, 2020Applicant: NETUREN CO., LTD.Inventors: Makoto NOMURA, Takashi YAMAWAKI, Ryosuke SUZUKI, Nobumoto ISHIKI
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Patent number: 10562138Abstract: A method for manufacturing a rack bar includes joining axial end portions of first and second bar members to each other, and forming a power transmission section on the second bar member. The first bar member has a toothed portion. When the second bar member is hollow, the method may further include thickening a wall of a portion of the second bar member along the axial direction so as to be coaxial with the first bar member. When the second bar member has a greater diameter than the first bar member, the method may further include cutting an outside diameter of a portion of the second bar member in the axial direction so as to be coaxial with the first bar member. The power transmission section is formed on the portion of the second bar member where the wall has been thickened and/or the outside diameter has been cut.Type: GrantFiled: November 4, 2016Date of Patent: February 18, 2020Assignee: NETUREN CO., LTD.Inventors: Makoto Nomura, Takashi Yamawaki, Ryosuke Suzuki, Nobumoto Ishiki
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Publication number: 20180304422Abstract: A method for manufacturing a rack bar includes joining axial end portions of first and second bar members to each other, and forming a power transmission section on the second bar member. The first bar member has a toothed portion. When the second bar member is hollow, the method may further include thickening a wall of a portion of the second bar member along the axial direction so as to be coaxial with the first bar member. When the second bar member has a greater diameter than the first bar member, the method may further include cutting an outside diameter of a portion of the second bar member in the axial direction so as to be coaxial with the first bar member. The power transmission section is formed on the portion of the second bar member where the wall has been thickened and/or the outside diameter has been cut.Type: ApplicationFiled: November 4, 2016Publication date: October 25, 2018Applicant: NETUREN CO., LTD.Inventors: Makoto NOMURA, Takashi YAMAWAKI, Ryosuke SUZUKI, Nobumoto ISHIKI
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Publication number: 20180240930Abstract: A method of manufacturing a lead wire for a solar cell includes heating a wire material by a direct resistance heating or by an induction heating to reduce a 0.2% proof stress of the wire material while conveying the wire material and plating the wire material that is in a heated condition obtained by the direct resistance heating or by the induction heating while further conveying the wire material. An apparatus is configured to implement the method, and includes a plating bath, a conveyor mechanism configured to convey the wire material, a heater configured to heat the wire material, and a controller configured to control the conveyor mechanism and the heater.Type: ApplicationFiled: April 23, 2018Publication date: August 23, 2018Inventors: Yoshiki SETO, Kunihiro KOBAYASHI, Nobumoto ISHIKI, Hisaaki WATANABE
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Patent number: 9991410Abstract: A method of manufacturing a lead wire for a solar cell includes heating a wire material by a direct resistance heating or by an induction heating to reduce a 0.2% proof stress of the wire material while conveying the wire material and plating the wire material that is in a heated condition obtained by the direct resistance heating or by the induction heating while further conveying the wire material. An apparatus is configured to implement the method, and includes a plating bath, a conveyor mechanism configured to convey the wire material, a heater configured to heat the wire material, and a controller configured to control the conveyor mechanism and the heater.Type: GrantFiled: September 28, 2012Date of Patent: June 5, 2018Assignee: NETUREN CO., LTD.Inventors: Yoshiki Seto, Kunihiro Kobayashi, Nobumoto Ishiki, Hisaaki Watanabe
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Patent number: 9856965Abstract: A metal core for a resin gear and a resin gear composite member are provided. The metal core includes a boss portion into which a shaft is press-fitted, a ring portion to which an outer peripheral resin is joined, and a connecting portion via which the boss portion and the ring portion are coaxially provided. The boss portion is arranged on one side of the connecting portion at an inner circumference of the connecting portion and extends annularly in an axial direction. The ring portion is arranged on the same side of the connecting portion at an outer circumference of the connecting portion and extends annularly in the axial direction. The boss portion, the connecting portion, and the ring portion are formed of an integrally continuous material. The boss portion is thicker than the connecting portion and the ring portion.Type: GrantFiled: May 28, 2014Date of Patent: January 2, 2018Assignee: NETUREN CO., LTD.Inventors: Nobumoto Ishiki, Ryosuke Suzuki
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Publication number: 20160123451Abstract: A metal core for a resin gear and a resin gear composite member are provided. The metal core includes a boss portion into which a shaft is press-fitted, a ring portion to which an outer peripheral resin is joined, and a connecting portion via which the boss portion and the ring portion are coaxially provided. The boss portion is arranged on one side of the connecting portion at an inner circumference of the connecting portion and extends annularly in an axial direction. The ring portion is arranged on the same side of the connecting portion at an outer circumference of the connecting portion and extends annularly in the axial direction. The boss portion, the connecting portion, and the ring portion are formed of an integrally continuous material. The boss portion is thicker than the connecting portion and the ring portion.Type: ApplicationFiled: May 28, 2014Publication date: May 5, 2016Applicant: NETUREN CO., LTD.Inventors: Nobumoto ISHIKI, Ryosuke SUZUKI
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Publication number: 20160121439Abstract: A method of manufacturing a metal core for a resin gear is provided. The metal core has a boss portion into which a shaft is press-fitted and a ring portion to which an outer peripheral resin is joined. The method includes swaging a plate material having a center hole by pressing the plate material in an axial direction to form a swaged body, and forging the swaged body by pressing the swaged body in the axial direction under a higher pressure. The swaging includes deforming a portion around the center hole in the axial direction to form an inner circumferential swaged portion, and deforming an outer circumferential portion of the plate material in the same axial direction to form an outer circumferential swaged portion. The forging includes forming the inner circumferential swaged portion into the boss portion, and forming the outer circumferential swaged portion into the ring portion.Type: ApplicationFiled: May 28, 2014Publication date: May 5, 2016Applicants: NETUREN CO., LTD., MORI IRON WORKS CO., LTD.Inventors: Nobumoto ISHIKI, Ryosuke SUZUKI, Takanobu MORI, Hiroto FUJIMURA, Toru TANAKA
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Publication number: 20140357015Abstract: A method of manufacturing a lead wire for a solar cell includes heating a wire material by a direct resistance heating or by an induction heating to reduce a 0.2% proof stress of the wire material while conveying the wire material and plating the wire material that is in a heated condition obtained by the direct resistance heating or by the induction heating while further conveying the wire material. An apparatus is configured to implement the method, and includes a plating bath, a conveyor mechanism configured to convey the wire material, a heater configured to heat the wire material, and a controller configured to control the conveyor mechanism and the heater.Type: ApplicationFiled: September 28, 2012Publication date: December 4, 2014Inventors: Yoshiki Seto, Kunihiro Kobayashi, Nobumoto Ishiki, Hisaak Watanabe
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Publication number: 20140224387Abstract: A method of annealing a copper wire for an interconnector includes heating a copper wire by a direct resistance heating or by an induction heating, a heating temperature of the heating being in a range of 650° C. to 1020° C., and a heating time of the heating being in a range of 0.3 seconds to 5 seconds.Type: ApplicationFiled: September 28, 2012Publication date: August 14, 2014Applicant: Neturen Co., LTD.Inventors: Yoshiki Seto, Kunihiro Kobayashi, Nobumoto Ishiki, Hisaaki Watanabe