Patents by Inventor Katsuyoshi Ishigame
Katsuyoshi Ishigame 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: 9346340Abstract: An impact bar includes a U-shaped portion formed by a vertical face portion and upper-and-lower lateral face portions at its front end. The impact bar further includes upper-and-lower outer face portions. A pair of first joint portions which are formed so as to extend upward and downward from respective front ends of the upper-and-lower lateral face portions are joined to a lateral face portion of a door inner panel. A pair of second joint portions which are formed so as to extend forward from respective front ends of the upper-and-lower outer face portions are joined to a longitudinal face portion of the door inner panel.Type: GrantFiled: February 26, 2014Date of Patent: May 24, 2016Assignee: Mazda Motor CorporationInventors: Katsuyoshi Ishigame, Yuichi Sugimura, Hirotaka Takaya, Kyohei Yukita
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Patent number: 9079618Abstract: A pair of right-and-left roof rails, a roof panel provided between the roof rails, a roof reinforcement extending in a vehicle width direction below the roof panel, a center pillar, and a gusset joined to an end portion, in the vehicle width direction, of the roof reinforcement are provided. Further, a node-shaped plate member is provided inside the roof rail at a position which overlaps the roof reinforcement longitudinally and vertically. Accordingly, buckling of a portion of the roof reinforcement which is located in the vicinity of a roof side can be restrained.Type: GrantFiled: December 20, 2013Date of Patent: July 14, 2015Assignee: Mazda Motor CorporationInventors: Katsuyoshi Ishigame, Yuichi Sugimura, Sakayu Terada, Keizo Kawasaki
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Patent number: 8931826Abstract: A load transmitting member comprising a rising face portion rising from a floor panel and a facing face portion facing a portion of the side panel between a rear edge portion of a rear-door opening portion and a rear-wheel house portion and having its short longitudinal width is arranged on an inward side of a side panel. The load transmitting member is fixed to a front portion of the rear-wheel house portion directly or via a bracket. The load transmitting member can be arranged so as not to prevent a smooth ingress/egress action of a passenger, and a proper load-transmission function of the load transmission member when the impact load is inputted to a rear door from the vehicle side can be attained so as to effectively restrain the rear door from coming into a vehicle compartment.Type: GrantFiled: August 16, 2013Date of Patent: January 13, 2015Assignee: Mazda Motor CorporationInventors: Takashi Yoshimura, Shigeaki Watanabe, Sakayu Terada, Katsuyoshi Ishigame, Yuichi Sugimura
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Publication number: 20140246879Abstract: An impact bar includes a U-shaped portion formed by a vertical face portion and upper-and-lower lateral face portions at its front end. The impact bar further includes upper-and-lower outer face portions. A pair of first joint portions which are formed so as to extend upward and downward from respective front ends of the upper-and-lower lateral face portions are joined to a lateral face portion of a door inner panel. A pair of second joint portions which are formed so as to extend forward from respective front ends of the upper-and-lower outer face portions are joined to a longitudinal face portion of the door inner panel.Type: ApplicationFiled: February 26, 2014Publication date: September 4, 2014Applicant: MAZDA MOTOR CORPORATIONInventors: Katsuyoshi ISHIGAME, Yuichi SUGIMURA, Hirotaka TAKAYA, Kyohei YUKITA
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Publication number: 20140175839Abstract: A pair of right-and-left roof rails, a roof panel provided between the roof rails, a roof reinforcement extending in a vehicle width direction below the roof panel, a center pillar, and a gusset joined to an end portion, in the vehicle width direction, of the roof reinforcement are provided. Further, a node-shaped plate member is provided inside the roof rail at a position which overlaps the roof reinforcement longitudinally and vertically. Accordingly, buckling of a portion of the roof reinforcement which is located in the vicinity of a roof side can be restrained.Type: ApplicationFiled: December 20, 2013Publication date: June 26, 2014Applicant: MAZDA MOTOR CORPORATIONInventors: Katsuyoshi ISHIGAME, Yuichi SUGIMURA, Sakayu TERADA, Keizo KAWASAKI
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Publication number: 20140062130Abstract: A load transmitting member comprising a rising face portion rising from a floor panel and a facing face portion facing a portion of the side panel between a rear edge portion of a rear-door opening portion and a rear-wheel house portion and having its short longitudinal width is arranged on an inward side of a side panel. The load transmitting member is fixed to a front portion of the rear-wheel house portion directly or via a bracket. The load transmitting member can be arranged so as not to prevent a smooth ingress/egress action of a passenger, and a proper load-transmission function of the load transmission member when the impact load is inputted to a rear door from the vehicle side can be attained so as to effectively restrain the rear door from coming into a vehicle compartment.Type: ApplicationFiled: August 16, 2013Publication date: March 6, 2014Applicant: MAZDA MOTOR CORPORATIONInventors: Takashi YOSHIMURA, Shigeaki WATANABE, Sakayu TERADA, Katsuyoshi ISHIGAME, Yuichi SUGIMURA
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Patent number: 8366183Abstract: At an upper part of a center pillar, a length L1 of a covering portion of a pillar inner panel is set to be substantially equal to a distance L2 between a pair of flange-ridgeline portions of a pillar reinforcement. Meanwhile, at a lower part of the center pillar, a length L3 of a covering portion of the pillar inner panel is set to be longer than a distance L4 between a pair of flange-ridgeline portions of the pillar reinforcement. Accordingly, a vehicle-body structure of a vehicle which can secure the proper absorption function of the vehicle collision load with cooperation of the first and second members can be provided.Type: GrantFiled: October 14, 2010Date of Patent: February 5, 2013Assignee: Mazda Motor CorporationInventors: Katsuyoshi Ishigame, Masaki Motoki, Yuichi Sugimura, Yoshikazu Nishimura
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Patent number: 8292356Abstract: A reinforcing member is provided at a lower-outside corner of a side-sill reinforcement so as to extend in the vehicle longitudinal direction including a connection portion of the side sill to a center pillar for straining deformation of the corner. A deformation promoting portion which is provided at an upper portion of the side-sill reinforcement at a specified position which corresponds to the connection portion for prompting deformation of the upper portion of the side-sill reinforcement. Accordingly, a lower vehicle-body structure of a vehicle which can properly restrain the side sill and the center pillar from coming toward the vehicle inside at the vehicle side crash can be provided.Type: GrantFiled: February 11, 2010Date of Patent: October 23, 2012Assignee: Mazda Motor CorporationInventors: Katsuyoshi Ishigame, Yuichi Sugimura, Masaki Motoki, Yukari Fujii, Akihiro Yukimori, Yoshikazu Nishimura, Kohei Kirita, Katsumi Ejima, Keizo Kawasaki
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Patent number: 7976098Abstract: A pillar reinforcement of a center pillar comprises an upper part and a lower part with a boundary line of these parts being positioned below the middle level of the pillar reinforcement. The upper and lower parts respectively include side wall portions which extend along a vehicle side face and pairs of vertical wall portions which extend inwardly from front and rear end portions of the side wall portions. The pair of vertical wall portions of the lower part is slant relative to the vehicle width direction so that the distance between the vertical wall portions becomes wider toward the inward direction, and a slant angle of the pair of vertical wall portions of the lower part is greater than that of the vertical portions of the upper part.Type: GrantFiled: December 14, 2009Date of Patent: July 12, 2011Assignee: Mazda Motor CompanyInventors: Yoshikazu Nishimura, Katsuyoshi Ishigame
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Publication number: 20110095567Abstract: At an upper part of a center pillar, a length L1 of a covering portion of a pillar inner panel is set to be substantially equal to a distance L2 between a pair of flange-ridgeline portions of a pillar reinforcement. Meanwhile, at a lower part of the center pillar, a length L3 of a covering portion of the pillar inner panel is set to be longer than a distance L4 between a pair of flange-ridgeline portions of the pillar reinforcement. Accordingly, a vehicle-body structure of a vehicle which can secure the proper absorption function of the vehicle collision load with cooperation of the first and second members can be provided.Type: ApplicationFiled: October 14, 2010Publication date: April 28, 2011Applicant: MAZDA MOTOR CORPORATIONInventors: Katsuyoshi ISHIGAME, Masaki MOTOKI, Yuichi SUGIMURA, Yoshikazu NISHIMURA
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Publication number: 20100237659Abstract: A reinforcing member is provided at a lower-outside corner of a side-sill reinforcement so as to extend in the vehicle longitudinal direction including a connection portion of the side sill to a center pillar for straining deformation of the corner. A deformation promoting portion which is provided at an upper portion of the side-sill reinforcement at a specified position which corresponds to the connection portion for prompting deformation of the upper portion of the side-sill reinforcement. Accordingly, a lower vehicle-body structure of a vehicle which can properly restrain the side sill and the center pillar from coming toward the vehicle inside at the vehicle side crash can be provided.Type: ApplicationFiled: February 11, 2010Publication date: September 23, 2010Applicant: MAZDA MOTOR CORPORATIONInventors: Katsuyoshi ISHIGAME, Yuichi SUGIMURA, Masaki MOTOKI, Yukari FUJII, Akihiro YUKIMORI, Yoshikazu NISHIMURA, Kohei KIRITA, Katsumi EJIMA, Keizo KAWASAKI
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Publication number: 20100194146Abstract: A pillar reinforcement of a center pillar comprises an upper part and a lower part with a boundary line of these parts being positioned below the middle level of the pillar reinforcement. The upper and lower parts respectively include side wall portions which extend along a vehicle side face and pairs of vertical wall portions which extend inwardly from front and rear end portions of the side wall portions. The pair of vertical wall portions of the lower part is slant relative to the vehicle width direction so that the distance between the vertical wall portions becomes wider toward the inward direction, and a slant angle of the pair of vertical wall portions of the lower part is greater than that of the vertical portions of the upper part.Type: ApplicationFiled: December 14, 2009Publication date: August 5, 2010Applicant: MAZDA MOTOR CORPORATIONInventors: Yoshikazu NISHIMURA, Katsuyoshi ISHIGAME
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Patent number: 7431329Abstract: Expansion of an air bag can be smoothly effected even in a small space by controlling the air bag in thickness and introduction of the gas for expansion, and the protection of an occupant can be rapidly implemented with a relatively small volume of the gas.Type: GrantFiled: June 24, 2005Date of Patent: October 7, 2008Assignees: Mazda Motor Corporation, Ashimori Industry Co., Ltd.Inventors: Seigo Taguchi, Katsuyoshi Ishigame, Tsutomu Sugahara, Naoki Yamaji, Hidetaka Azuma
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Publication number: 20060267318Abstract: An inflatable airbag, which inflates and comes out from a side portion of a seat back, comprises a head-protection portion and a torso-protection portion which are formed separately. A volume of the head-protection portion for protecting an occupant's head is configured to be greater than that of the torso-protection portion for protecting at least an occupant's chest. A tether connecting the both airbag portions can provide a proper forward inflation of the head-protection portion, suppressing an upward inflation of the head-protection portion. An arrangement of a vent hole or a coating layer can make an inflation sustaining period of the head-protection portion longer than that of the torso-protection portion in the inflated condition.Type: ApplicationFiled: August 9, 2006Publication date: November 30, 2006Applicant: MAZDA MOTOR CORPORATIONInventors: Satoshi Nishikaji, Katsuyoshi Ishigame, Tsutomu Sugahara, Seigo Taguchi
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Publication number: 20060001244Abstract: Expansion of an air bag can be smoothly effected even in a small space by controlling the air bag in thickness and introduction of the gas for expansion, and the protection of an occupant can be rapidly implemented with a relatively small volume of the gas.Type: ApplicationFiled: June 24, 2005Publication date: January 5, 2006Inventors: Seigo Taguchi, Katsuyoshi Ishigame, Tsutomu Sugahara, Naoki Yamaji, Hidetaka Azuma
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Publication number: 20040183285Abstract: An inflatable airbag, which inflates and comes out from a side portion of a seat back, comprises a head-protection portion and a torso-protection portion which are formed separately. A volume of the head-protection portion for protecting an occupant's head is configured to be greater than that of the torso-protection portion for protecting at least an occupant's chest. A tether connecting the both airbag portions can provide a proper forward inflation of the head-protection portion, suppressing an upward inflation of the head-protection portion. An arrangement of a vent hole or a coating layer can make an inflation sustaining period of the head-protection portion longer than that of the torso-protection portion in the inflated condition.Type: ApplicationFiled: January 28, 2004Publication date: September 23, 2004Applicant: MAZDA MOTOR CORPORATIONInventors: Satoshi Nishikaji, Katsuyoshi Ishigame, Tsutomu Sugahara, Seigo Taguchi