Patents by Inventor Hiroji SASAKI
Hiroji SASAKI 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: 20190299323Abstract: To enable a first welding target member including a projection on a welding target portion having short sides and long sides and a second welding target member to be bonded by resistance welding with high welding strength. A manufacturing method for manufacturing a welded article by bonding a first welding target member including an elongated projection portion on a welding target portion having short sides and long sides that are longer than the short sides and a second welding target member by resistance welding, in which the projection portion of the first welding target member is subdivided by forming subdividing grooves extending in the direction of the short sides in the projection portion to reduce the influence of skin effect on the welding current flowing through the subdivided projection portions and improve the uniformity of the current values in the direction of the long sides.Type: ApplicationFiled: June 20, 2019Publication date: October 3, 2019Inventors: Hiroji SASAKI, Toshihiko HAYASHI
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Patent number: 10369654Abstract: To enable a first welding target member including a projection on a welding target portion having short sides and long sides and a second welding target member to be bonded by resistance welding with high welding strength. A manufacturing method for manufacturing a welded article by bonding a first welding target member including an elongated projection portion on a welding target portion having short sides and long sides that are longer than the short sides and a second welding target member by resistance welding, in which the projection portion of the first welding target member is subdivided by forming subdividing grooves extending in the direction of the short sides in the projection portion to reduce the influence of skin effect on the welding current flowing through the subdivided projection portions and improve the uniformity of the current values in the direction of the long sides.Type: GrantFiled: January 19, 2016Date of Patent: August 6, 2019Assignee: ORIGIN COMPANY, LIMITEDInventors: Hiroji Sasaki, Toshihiko Hayashi
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Patent number: 9925615Abstract: To bond bonding target members stacked on top of each other without generating dust or spatter into an electrically bonded article with improved mechanical strength against strong vibration etc. A first bonding target member or second bonding target member includes a relative displacement amount setting portion for setting the distance by which the bonding target portion of the first member and the bonding target portion of the second member are relatively displaced during bonding, and a current conduction suppressing layer is formed on the relative displacement amount setting portion. The second or first member includes a setting face that is placed opposed to the current conduction suppressing layer of the first or second member. In a state where the first and second members have been positioned, the distance between the current conduction suppressing layer and the setting face is equal to the width H of the bonded portion.Type: GrantFiled: September 18, 2015Date of Patent: March 27, 2018Assignee: Origin Electric Company, LimitedInventor: Hiroji Sasaki
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Publication number: 20180043460Abstract: To enable a first welding target member including a projection on a welding target portion having short sides and long sides and a second welding target member to be bonded by resistance welding with high welding strength. A manufacturing method for manufacturing a welded article by bonding a first welding target member including an elongated projection portion on a welding target portion having short sides and long sides that are longer than the short sides and a second welding target member by resistance welding, in which the projection portion of the first welding target member is subdivided by forming subdividing grooves extending in the direction of the short sides in the projection portion to reduce the influence of skin effect on the welding current flowing through the subdivided projection portions and improve the uniformity of the current values in the direction of the long sides.Type: ApplicationFiled: January 19, 2016Publication date: February 15, 2018Inventors: Hiroji SASAKI, Toshihiko HAYASHI
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Patent number: 9849539Abstract: A method for manufacturing a bonded article having long bonding length and high strength. A first bonding target member and a second bonding target member having a hole portion for receiving the first member are provided. Pressing force is applied between the two members with the first member received in the hole portion, and a current is applied to a bonding target portion between the two members with the pressing force applied. The two members are of materials with different melting points. One of the two members, having lower melting point, has a heat capacity increasing portion in the vicinity of the target portion. The one of the members has a taper face at the target portion, and the heat capacity increasing portion has a face extending from the taper face. The force applying step is performed with the other member positioned not to contact the heat capacity increasing portion.Type: GrantFiled: December 8, 2015Date of Patent: December 26, 2017Assignee: ORIGIN ELECTRIC COMPANY, LIMITEDInventors: Yasuo Kadoya, Hiroji Sasaki
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Publication number: 20170282282Abstract: To bond bonding target members stacked on top of each other without generating dust or spatter into an electrically bonded article with improved mechanical strength against strong vibration etc. A first bonding target member or second bonding target member includes a relative displacement amount setting portion for setting the distance by which the bonding target portion of the first member and the bonding target portion of the second member are relatively displaced during bonding, and a current conduction suppressing layer is formed on the relative displacement amount setting portion. The second or first member includes a setting face that is placed opposed to the current conduction suppressing layer of the first or second member. In a state where the first and second members have been positioned, the distance between the current conduction suppressing layer and the setting face is equal to the width H of the bonded portion.Type: ApplicationFiled: September 18, 2015Publication date: October 5, 2017Inventor: Hiroji SASAKI
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Publication number: 20170225259Abstract: A method for manufacturing a bonded article having long bonding length and high strength. A first bonding target member and a second bonding target member having a hole portion for receiving the first member are provided. Pressing force is applied between the two members with the first member received in the hole portion, and a current is applied to a bonding target portion between the two members with the pressing force applied. The two members are of materials with different melting points. One of the two members, having lower melting point, has a heat capacity increasing portion in the vicinity of the target portion. The one of the members has a taper face at the target portion, and the heat capacity increasing portion has a face extending from the taper face. The force applying step is performed with the other member positioned not to contact the heat capacity increasing portion.Type: ApplicationFiled: December 8, 2015Publication date: August 10, 2017Inventors: Yasuo KADOYA, Hiroji SASAKI
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Patent number: 8710393Abstract: By respectively abutting first and second outer diameter sections of a second metallic member against first and second inner diameter sections of a first metallic member, and energizing the first metallic member and the second metallic member using a pair of electrodes while pressurizing both metallic members in an axial direction thereof, a first junction where the first inner diameter section and the first outer diameter section are bonded and a second junction where the second inner diameter section and the second outer diameter section are bonded are formed between both metallic members, and a gap in which the metals do not come into contact with each other is formed between both junctions over a predetermined axial length. Accordingly, a high joint strength can be secured using less energy for bonding.Type: GrantFiled: October 28, 2010Date of Patent: April 29, 2014Assignees: Mazda Motor Corporation, Origin Electric Company, LimitedInventors: Shinya Okumura, Akira Hashimoto, Kazuyuki Shiino, Takeshi Fujii, Akinobu Yamagata, Hiroaki Hayashi, Tomoo Sawazaki, Kazuyuki Ishida, Masatoshi Hamano, Hiroji Sasaki
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Publication number: 20110104511Abstract: By respectively abutting first and second outer diameter sections of a second metallic member against first and second inner diameter sections of a first metallic member, and energizing the first metallic member and the second metallic member using a pair of electrodes while pressurizing both metallic members in an axial direction thereof, a first junction where the first inner diameter section and the first outer diameter section are bonded and a second junction where the second inner diameter section and the second outer diameter section are bonded are formed between both metallic members, and a gap in which the metals do not come into contact with each other is formed between both junctions over a predetermined axial length. Accordingly, a high joint strength can be secured using less energy for bonding.Type: ApplicationFiled: October 28, 2010Publication date: May 5, 2011Applicants: MAZDA MOTOR CORPORATION, ORIGIN ELECTRIC COMPANY, LIMTEDInventors: Shinya OKUMURA, Akira HASHIMOTO, Kazuyuki SHIINO, Takeshi FUJII, Akinobu YAMAGATA, Hiroaki HAYASHI, Tomoo SAWAZAKI, Kazuyuki ISHIDA, Masatoshi HAMANO, Hiroji SASAKI