Patents by Inventor Chikara Kawamura
Chikara Kawamura 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: 10411374Abstract: A cable connection structural body is used for connecting a multi-core cable having a plurality of signal lines to a substrate, and the cable connection structural body includes a substrate fixation portion that is fixed to the substrate, and a cable holding portion that forms a space passing the plurality of signal lines therethrough between the cable holding portion and a surface of the substrate when the substrate fixation portion is fixed to the substrate.Type: GrantFiled: June 22, 2017Date of Patent: September 10, 2019Assignee: Japan Aviation Electronics Industry, LimitedInventors: Yukitaka Tanaka, Chikara Kawamura
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Publication number: 20190270420Abstract: Each impact-absorbing member has an open cross-sectional shape that is open to a first side of a vehicle width direction. Each impact-absorbing member includes an upper wall, a lower wall, a side wall extending between the upper wall and the lower wall, an upper flange portion extending upward from the upper wall, and a lower flange portion extending downward from the lower wall. Curved portions curved in the vehicle width direction in a protruding manner are formed in the side wall. The upper wall and the lower wall include a plurality of plate-shaped flat portions adjacent in the vehicle width direction, and step portions connecting the adjacent flat portions while forming a step in a vertical direction, respectively.Type: ApplicationFiled: October 24, 2017Publication date: September 5, 2019Applicant: MAZDA MOTOR CORPORATIONInventor: Chikara KAWAMURA
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Patent number: 10252750Abstract: Provided is a front side frame 2, comprising: a main frame 201; and reinforcing members 30, 40, 50 disposed inside the main frame 2, wherein the reinforcing member 30 includes partition wall portions 31b, 32d, 32e dividing a main closed cross-section C_m of the main frame 201 into a plurality of sub closed-cross sections c, the first to third partition wall portions 31b, 32d, 32e being respectively formed with compression-side ridges 31s, 32s, 32u vertically facing each other and able to come into contact with each other in a deformation of the front side frame 2, and tension-side ridges 31t, 32t, 32v arranged in the same manner.Type: GrantFiled: December 14, 2015Date of Patent: April 9, 2019Assignee: MAZDA MOTOR CORPORATIONInventors: Yuki Kodama, Masanori Honda, Chikara Kawamura
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Patent number: 10214244Abstract: There are provided an outer panel, an inner panel, a second reinforcement provided in the main closed-cross section and cooperates with the outer panel to form a sub closed-cross section extending longitudinally, a bead portion formed at a portion of the inner panel which is located at a position corresponding to the second reinforcement, and configured to be a starting point causing bending of a front side frame toward the second reinforcement when a collision load is applied in a vehicle collision, and a second attaching member provided at a position located on a front-end side of the front side frame relatively to the second reinforcement and configured to make the second reinforcement crushable in a bending direction in the vehicle collision. The second attaching member comprises a knot-shaped member provided inside the main closed-cross section.Type: GrantFiled: July 25, 2017Date of Patent: February 26, 2019Assignee: MAZDA MOTOR CORPORATIONInventors: Takehiro Kamei, Masanobu Hanazaki, Chikara Kawamura, Masaki Motoki
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Publication number: 20180362087Abstract: Provided is a front side frame 2, comprising: a main frame 201; and reinforcing members 30, 40, 50 disposed inside the main frame 2, wherein the reinforcing member 30 includes partition wall portions 31b, 32d, 32e dividing a main closed cross-section C_m of the main frame 201 into a plurality of sub closed-cross sections c, the first to third partition wall portions 31b, 32d, 32e being respectively formed with compression-side ridges 31s, 32s, 32u vertically facing each other and able to come into contact with each other in a deformation of the front side frame 2, and tension-side ridges 31t, 32t, 32v arranged in the same manner.Type: ApplicationFiled: December 14, 2015Publication date: December 20, 2018Applicant: MAZDA MOTOR CORPORATIONInventors: Yuki KODAMA, Masanori HONDA, Chikara KAWAMURA
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Publication number: 20180257589Abstract: An impact absorbing member structure of a vehicle includes: a pair of left and right rear side frames; a pair of left and right crash cans containing a plurality of first carbon fibers arranged so as to continuously extend in a forward/rearward direction; and a bumper reinforcement attached to tip end portions of the pair of rear side frames through the pair of crash cans. Each of the crash cans is formed as an open-section member including: a side wall portion extending in the forward/rearward direction; and a tip end wall portion continuous with the side wall portion and including an attaching portion to which the bumper reinforcement is attached.Type: ApplicationFiled: November 8, 2016Publication date: September 13, 2018Applicant: Mazda Motor CorporationInventors: Chikara Kawamura, Tsuneki Shimanaka, Hiroaki Takeshita, Tsuyoshi Nishihara, Takayuki Kimura, Kazutaka Ishikura
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Publication number: 20180251088Abstract: An impact absorbing structure includes an impact absorbing member made of CFRP, and the impact absorbing member includes a pair of left and right side wall portions and upper and lower coupling wall portions each coupling the side wall portions. Each of the pair of side wall portions includes a plurality of curved portions. Each of the curved portions is formed such that a leftward/rightward direction depth thereof decreases toward a front side. Each of the pair of side wall portions includes: a plurality of first carbon fibers arranged to extend in a forward/rearward direction and constituting most of reinforced fibers contained in the side wall portion; and a plurality of second carbon fibers arranged to extend in a direction intersecting with the first carbon fibers. The plurality of second carbon fibers are arranged at both thickness direction end vicinity parts of each of the side wall portions.Type: ApplicationFiled: November 8, 2016Publication date: September 6, 2018Inventors: Chikara Kawamura, Taiki Yotsuyanagi, Hiroaki Takeshita, Tsuyoshi Nishihara, Tsuneki Shimanaka, Takayuki Kimura, Yoshiaki Murakami
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Publication number: 20180097300Abstract: A cable connection structural body is used for connecting a multi-core cable having a plurality of signal lines to a substrate, and the cable connection structural body includes a substrate fixation portion that is fixed to the substrate, and a cable holding portion that forms a space passing the plurality of signal lines therethrough between the cable holding portion and a surface of the substrate when the substrate fixation portion is fixed to the substrate.Type: ApplicationFiled: June 22, 2017Publication date: April 5, 2018Inventors: Yukitaka TANAKA, Chikara KAWAMURA
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Publication number: 20180072347Abstract: There are provided an outer panel, an inner panel, a second reinforcement provided in the main closed-cross section and cooperates with the outer panel to form a sub closed-cross section extending longitudinally, a bead portion formed at a portion of the inner panel which is located at a position corresponding to the second reinforcement, and configured to be a starting point causing bending of a front side frame toward the second reinforcement when a collision load is applied in a vehicle collision, and a second attaching member provided at a position located on a front-end side of the front side frame relatively to the second reinforcement and configured to make the second reinforcement crushable in a bending direction in the vehicle collision. The second attaching member comprises a knot-shaped member provided inside the main closed-cross section.Type: ApplicationFiled: July 25, 2017Publication date: March 15, 2018Applicant: MAZDA MOTOR CORPORATIONInventors: Takehiro KAMEI, Masanobu HANAZAKI, Chikara KAWAMURA, Masaki MOTOKI
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Patent number: 9701344Abstract: A bead portion is provided at a compression-side wall portion to be recessed toward an inside of a main closed cross section. A first reinforcing member is provided in the closed cross section and joined to a tension-side wall portion so as to form a first sub cross section extending in a longitudinal direction between the tension-side wall portion and the first reinforcing member. A second reinforcing member is provided in the closed cross section and joined to a portion of the compression-side wall portion where the bead portion is provided so as to form a second sub cross section extending vertically between the portion of the compression-side wall portion and the second reinforcing member. The first and second reinforcing members are configured to be spaced apart from each other.Type: GrantFiled: February 12, 2016Date of Patent: July 11, 2017Assignee: MAZDA MOTOR CORPORATIONInventors: Yuki Kodama, Chikara Kawamura, Masanori Honda
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Patent number: 9683074Abstract: An object of the present invention is to provide a coating composition that has excellent storage stability, achieves water and oil repellency over a long period of time, and has excellent chemical resistance and processability. To achieve this object, the present invention provides a copolymer resin (A) comprising, as constituent components, a polybasic acid component (a1); a compound (a2) containing at least one member selected from a secondary-hydroxyl-group-containing polyhydric alcohol component (a21) and a compound (a22), which generates one or more secondary hydroxyl groups by reaction with one or more carboxyl groups; and a specific fluorine-containing diol (f), the component (f) being used in a proportion of 0.1 to 30 mass %, based on the total mass of the constituent components.Type: GrantFiled: December 26, 2014Date of Patent: June 20, 2017Assignee: KANSAI PAINT CO., LTD.Inventors: Chikara Kawamura, Akinori Nagai
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Patent number: 9590355Abstract: A connector is provided with a lock portion, a lock supporting portion and a lock releasing member. A part of the connector forms a fitting portion to be received by a mating fitting portion of a mating connector in a mated state. The lock portion is provided in the fitting portion and locks a mating lock portion in the mated state. The lock supporting portion supports the lock portion to allow movement of the lock portion in a direction intersecting with a fitting direction. The lock releasing member is provided with a pressing portion. When release operation of the lock releasing member is performed, the pressing portion presses a pressed portion to move the lock portion toward an inside of the fitting portion in a perpendicular to the fitting direction.Type: GrantFiled: August 19, 2015Date of Patent: March 7, 2017Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITEDInventors: Chikara Kawamura, Yukitaka Tanaka
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Publication number: 20170058080Abstract: An object of the present invention is to provide a coating composition that has excellent storage stability, achieves water and oil repellency over a long period of time, and has excellent chemical resistance and processability. To achieve this object, the present invention provides a copolymer resin (A) comprising, as constituent components, a polybasic acid component (a1); a compound (a2) containing at least one member selected from a secondary-hydroxyl-group-containing polyhydric alcohol component (a21) and a compound (a22), which generates one or more secondary hydroxyl groups by reaction with one or more carboxyl groups; and a specific fluorine-containing diol (f), the component (f) being used in a proportion of 0.1 to 30 mass %, based on the total mass of the constituent components.Type: ApplicationFiled: December 26, 2014Publication date: March 2, 2017Applicant: KANSAI PAINT CO., LTD.Inventors: Chikara KAWAMURA, Akinori NAGAI
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Patent number: 9572246Abstract: A printed wiring board comprises a pattern layer, an insulating layer and a ground layer laminated in an upper-lower direction. The printed wiring board is formed with one or more vias. The insulating layer is provided between the pattern layer and the ground layer. The ground layer is formed with a ground pattern. The pattern layer is formed with one common ground plane and two or more pads. The pads are arranged in a lateral direction. The common ground plane is located forward of the pads in the front-rear direction. The vias include a first via that connects the common ground plane and the ground pattern with each other. The pads include one or more ground pads and one or more signal pads. The ground pads are connected with the common ground plane. The signal pads are unconnected with the common ground plane.Type: GrantFiled: February 27, 2015Date of Patent: February 14, 2017Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITEDInventors: Yukitaka Tanaka, Chikara Kawamura
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Patent number: 9564711Abstract: A connector reduced in dimension in a front-rear direction by reducing the distance between an operating portion of an operation member and hooking portions of a locking member. The locking member maintains a state of a housing fitted to a mating housing, and includes a body, hooking portions provided at respective free end-side portions of the body, for being hooked to the mating housing to thereby maintain the fitted state, and a transmission portion for transmitting a force to move the operation member toward the rear of the housing, to the body, to thereby displace the hooking portions away from the mating housing. The operation member includes an operating portion for applying the force to the transmission portion. These portions are each formed with a flat surface inclined in a manner approaching the housing as it extends toward the rear of the housing.Type: GrantFiled: April 14, 2016Date of Patent: February 7, 2017Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITEDInventors: Yukitaka Tanaka, Chikara Kawamura
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Patent number: 9548569Abstract: A connector is mountable on an object in an up-down direction and mateable with a mating connector along a front-rear direction perpendicular to the up-down direction. The mating connector comprises first mating contacts and second mating contacts. The connector comprises a holding member, first contacts and second contacts. Each of the first contacts has a first contact portion, a first fixed portion and a first coupling portion. The first contact portions are brought into contact with the first mating contacts. Each of the second contacts has a second contact portion, a second fixed portion and a second coupling portion. The second contact portions are brought into contact with the second mating contacts. The first coupling portions of the first contacts and the second coupling portions of the second contacts overlap with each other. The second coupling portion intersects with both the front-rear direction and the up-down direction.Type: GrantFiled: February 10, 2016Date of Patent: January 17, 2017Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITEDInventors: Yukitaka Tanaka, Chikara Kawamura
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Publication number: 20160359273Abstract: A connector reduced in dimension in a front-rear direction by reducing the distance between an operating portion of an operation member and hooking portions of a locking member. The locking member maintains a state of a housing fitted to a mating housing, and includes a body, hooking portions provided at respective free end-side portions of the body, for being hooked to the mating housing to thereby maintain the fitted state, and a transmission portion for transmitting a force to move the operation member toward the rear of the housing, to the body, to thereby displace the hooking portions away from the mating housing. The operation member includes an operating portion for applying the force to the transmission portion. These portions are each formed with a flat surface inclined in a manner approaching the housing as it extends toward the rear of the housing.Type: ApplicationFiled: April 14, 2016Publication date: December 8, 2016Applicant: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITEDInventors: Yukitaka TANAKA, Chikara KAWAMURA
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Publication number: 20160276780Abstract: A connector is mountable on an object in an up-down direction and mateable with a mating connector along a front-rear direction perpendicular to the up-down direction. The mating connector comprises a plurality of first mating contacts and a plurality of second mating contacts. The connector comprises a holding member, a first collection of first contacts and a second collection of second contacts. Each of the first contacts has a first contact portion, a first fixed portion and a first coupling portion. The first contact portions are brought into contact with the first mating contacts, respectively. Each of the second contacts has a second contact portion, a second fixed portion and a second coupling portion. The second contact portions are brought into contact with the second mating contacts, respectively.Type: ApplicationFiled: February 10, 2016Publication date: September 22, 2016Applicant: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITEDInventors: Yukitaka TANAKA, Chikara KAWAMURA
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Publication number: 20160251035Abstract: A bead portion is provided at a compression-side wall portion to be recessed toward an inside of a main closed cross section. A first reinforcing member is provided in the closed cross section and joined to a tension-side wall portion so as to form a first sub cross section extending in a longitudinal direction between the tension-side wall portion and the first reinforcing member. A second reinforcing member is provided in the closed cross section and joined to a portion of the compression-side wall portion where the bead portion is provided so as to form a second sub cross section extending vertically between the portion of the compression-side wall portion and the second reinforcing member. The first and second reinforcing members are configured to be spaced apart from each other.Type: ApplicationFiled: February 12, 2016Publication date: September 1, 2016Applicant: MAZDA MOTOR CORPORATIONInventors: Yuki KODAMA, Chikara KAWAMURA, Masanori HONDA
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Patent number: 9368927Abstract: A connector is mateable with a mating connector along a mating direction. The mating connector includes a plurality of mating contacts. The connector comprising a plurality of contacts which are held by a housing. Each of the contacts has a contact portion, a terminal portion and an intersecting portion. The terminal portion is positioned at a position different from a position of the contact portion in a pitch direction perpendicular to the mating direction. The intersecting portion is positioned between the contact portion and the terminal portion. The intersecting portions intersect both the mating direction and the pitch direction in a plane which is defined by the mating direction and the pitch direction. The contacts include at least a plurality of first contacts and a plurality of second contacts.Type: GrantFiled: December 18, 2014Date of Patent: June 14, 2016Assignee: JAPAN AVIATION ELECTRONICS INDUSTRY, LIMITEDInventors: Chikara Kawamura, Yukitaka Tanaka