Patents by Inventor Toru HASHIGAMI
Toru HASHIGAMI 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).
-
Patent number: 9334065Abstract: There are provided a lightning-resistant fastener and a cap, which, while assuring sufficient insulation properties, provide improved workability and highly stable quality to thereby enable a reduction in the manufacturing cost of an airframe, and a method of mounting the lightning-resistant fastener. A hole 32 is formed in a cap 30, and a screw groove 32a is formed in the hole 32. The configuration enables the cap 30 to be reliably and easily positioned and installed on a fastener member 24 and reliably prevents the cap 30 from coming off after the installation thereof. This improves the workability to reduce the production cost while assuring sufficient insulation properties and enables the cap 30 to be installed with stable quality irrespective of workers. Preferably, the cap 30 is made of a resin in view of mass producibility, weight reduction, and the like.Type: GrantFiled: July 11, 2013Date of Patent: May 10, 2016Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Masahiro Bessho, Wataru Nihimura, Naomoto Ishikawa, Yuichiro Kamino, Toshikatsu Nohara, Toru Hashigami, Tamaki Tsuzuki
-
Publication number: 20150344151Abstract: There are provided a lightning-resistant fastener and a cap, which, while assuring sufficient insulation properties, provide improved workability and highly stable quality to thereby enable a reduction in the manufacturing cost of an airframe, and a method of mounting the lightning-resistant fastener. A hole 32 is formed in a cap 30, and a screw groove 32a is formed in the hole 32. The configuration enables the cap 30 to be reliably and easily positioned and installed on a fastener member 24 and reliably prevents the cap 30 from coming off after the installation thereof. This improves the workability to reduce the production cost while assuring sufficient insulation properties and enables the cap 30 to be installed with stable quality irrespective of workers. Preferably, the cap 30 is made of a resin in view of mass producibility, weight reduction, and the like.Type: ApplicationFiled: July 11, 2013Publication date: December 3, 2015Inventors: Masahiro Bessho, Wataru Nihimura, Naomoto Ishikawa, Yuichiro Kamino, Toshikatsu Nohara, Toru Hashigami, Tamaki Tsuzuki
-
Patent number: 9163656Abstract: To provide a lightning protection fastener or the like, that can reliably seal an arc between the cap and a member such as a wing panel. An end part 30A of a cap 30 on an opening side, the end part 30 A facing a member 22 (or member 21), includes a plane 30d orthogonal to an axis line of the cap 30A and a tapered face 30c formed on an outer circumferential side of the plane 30d. A sealant 34 that spills out of the cap 30A upon mounting the cap 30A is present between the tapered face 30c and a surface 22f of the member 22 (sealant 34S).Type: GrantFiled: November 1, 2012Date of Patent: October 20, 2015Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Yuji Asahara, Hideo Yamakoshi, Atsuhiro Iyomasa, Takeyasu Tarumi, Wataru Nishimura, Yasunori Watanabe, Toru Hashigami, Hiroshi Rikukawa, Hideo Imamura, Naoki Taniguchi
-
Patent number: 8995108Abstract: Provided is a coupling structure for airframe components that is capable of ensuring sufficient lightning protection capability. A conductive pattern part 40 made of a conductive material is formed around each fastener member 24 between wing surface panels 21A and 21B. The conductive pattern part 40 is formed, for example, around each of holes 21c and 21d on the plane on which the wing surface panel 21A and the wing surface panel 21B abut against each other. Then, the conductive pattern part 40 is pushed against both the wing surface panel 21A and the wing surface panel 21B by the fastening power of the fastener members 24, whereby electrical conduction between the wing surface panel 21A and the wing surface panel 21B can be achieved.Type: GrantFiled: December 11, 2013Date of Patent: March 31, 2015Assignee: Mitsubishi Aircraft CorporationInventors: Koji Kawahara, Hideo Yamakoshi, Yuichiro Kamino, Atsuhiro Iyomasa, Toru Hashigami
-
Publication number: 20140234050Abstract: To provide a lightning protection fastener or the like, that can reliably seal an arc between the cap and a member such as a wing panel. An end part 30A of a cap 30 on an opening side, the end part 30 A facing a member 22 (or member 21), includes a plane 30d orthogonal to an axis line of the cap 30A and a tapered face 30c formed on an outer circumferential side of the plane 30d. A sealant 34 that spills out of the cap 30A upon mounting the cap 30A is present between the tapered face 30c and a surface 22f of the member 22 (sealant 34S).Type: ApplicationFiled: November 1, 2012Publication date: August 21, 2014Applicant: MITSUBISHI AIRCRAFT CORPORATIONInventors: Yuji Asahara, Hideo Yamakoshi, Atsuhiro Iyomasa, Takeyasu Tarumi, Wataru Nishimura, Yasunori Watanabe, Toru Hashigami, Hiroshi Rikukawa, Hideo Imamura, Naoki Taniguchi
-
Patent number: 8717736Abstract: A sealant 34 filled into a cap 30A is caused to overflow through both an opening in a first end portion 30a of the cap 30A and a through-hole 40 of the cap 30A when the cap 30A is pressed against a fastener member 25. With regard to the cap 30A, a ratio between inside diameter D1 of the opening on the side of the first end portion 30a and hole diameter D2 of the through-hole 40 in the second end portion 30b is set as follows: 0.10?D2/D1?0.27.Type: GrantFiled: January 10, 2013Date of Patent: May 6, 2014Assignee: Mitsubishi Aircraft CorporationInventors: Yuji Asahara, Hideo Yamakoshi, Atsuhiro Iyomasa, Wataru Nishimura, Takeyasu Tarumi, Yasunori Watanabe, Toru Hashigami, Hiroshi Rikukawa, Hideo Imamura, Naoki Taniguchi
-
Patent number: 8711541Abstract: In an insulating cover 50A according to the present invention, a dimension of each of an outer-circumferential-side cylindrical part 50c and an inner-circumferential-side cylindrical part 50b fitting in step parts 40 and 41 in an axial direction of a fastener body 25 is set large with respect to a tip covering part 50a covering a tip surface 26a of a fastening member 26. As a result, on an outer circumferential side and an inner circumferential side of the fastening member 26, a distance from a member 22 is sufficiently ensured by the cylindrical part 50b and 50c. The tip covering part 50a is thinner than the cylindrical part 50B and 50c. Therefore, when the fastener body 25 and the fastening member 26 are fastened together, the amount of deformation of the tip covering part 50a in a thickness direction can be made small.Type: GrantFiled: March 28, 2012Date of Patent: April 29, 2014Assignee: Mitsubishi Aircraft CorporationInventors: Soichiro Umemoto, Hideo Yamakoshi, Atsuhiro Iyomasa, Toru Hashigami
-
Publication number: 20140096991Abstract: Provided is a coupling structure for airframe components that is capable of ensuring sufficient lightning protection capability. A conductive pattern part 40 made of a conductive material is formed around each fastener member 24 between wing surface panels 21A and 21B. The conductive pattern part 40 is formed, for example, around each of holes 21c and 21d on the plane on which the wing surface panel 21A and the wing surface panel 21B abut against each other. Then, the conductive pattern part 40 is pushed against both the wing surface panel 21A and the wing surface panel 21B by the fastening power of the fastener members 24, whereby electrical conduction between the wing surface panel 21A and the wing surface panel 21B can be achieved.Type: ApplicationFiled: December 11, 2013Publication date: April 10, 2014Applicant: MITSUBISHI AIRCRAFT CORPORATIONInventors: Koji KAWAHARA, Hideo YAMAKOSHI, Yuichiro KAMINO, Atsuhiro IYOMASA, Toru HASHIGAMI
-
Patent number: 8634177Abstract: Provided is a coupling structure for airframe components that is capable of ensuring sufficient lightning protection capability. A conductive pattern part 40 made of a conductive material is formed around each fastener member 24 between wing surface panels 21A and 21B. The conductive pattern part 40 is formed, for example, around each of holes 21c and 21d on the plane on which the wing surface panel 21A and the wing surface panel 21B abut against each other. Then, the conductive pattern part 40 is pushed against both the wing surface panel 21A and the wing surface panel 21B by the fastening power of the fastener members 24, whereby electrical conduction between the wing surface panel 21A and the wing surface panel 21B can be achieved.Type: GrantFiled: March 13, 2012Date of Patent: January 21, 2014Assignee: Mitsubishi Aircraft CorporationInventors: Koji Kawahara, Hideo Yamakoshi, Yuichiro Kamino, Atsuhiro Iyomasa, Toru Hashigami
-
Patent number: 8587916Abstract: A long-life lightning protection fastener or the like to prevent explosion for aircrafts at low cost is provided, the fastener having a light weight, ensuring sufficient lightning protection, and having extremely less failures and high reliability. A ring-shaped ring member 40A made of resin is mounted on a collar 26. This ring member 40A is interposed between a member 22 and the collar 26 and is in intimate contact with both of the member 22 and the collar 26, thereby sealing an interface with the member 22 for sealing and preventing the occurrence of an arc at an outer perimeter edge of the collar 26.Type: GrantFiled: March 14, 2012Date of Patent: November 19, 2013Assignee: Mitsubishi Aircraft CorporationInventors: Hideo Yamakoshi, Yuichiro Kamino, Yuji Asahara, Yasunori Watanabe, Atsuhiro Iyomasa, Toru Hashigami, Kohei Murakami, Tomonori Okumura
-
Patent number: 8520358Abstract: There are provided a lightning-resistant fastener and a cap, which, while assuring sufficient insulation properties, provide improved workability and highly stable quality to thereby enable a reduction in the manufacturing cost of an airframe, and a method of mounting the lightning-resistant fastener. A hole 32 is formed in a cap 30, and a screw groove 32a is formed in the hole 32. The configuration enables the cap 30 to be reliably and easily positioned and installed on a fastener member 24 and reliably prevents the cap 30 from coming off after the installation thereof. This improves the workability to reduce the production cost while assuring sufficient insulation properties and enables the cap 30 to be installed with stable quality irrespective of workers. Preferably, the cap 30 is made of a resin in view of mass producibility, weight reduction, and the like.Type: GrantFiled: April 2, 2010Date of Patent: August 27, 2013Assignee: Mitbushi Aircraft CorporationInventors: Masahiro Bessho, Wataru Nishimura, Naomoto Ishikawa, Yuichiro Kamino, Toshikatsu Nohara, Toru Hashigami, Tamaki Tsuzuki
-
Patent number: 8451577Abstract: A lightning-resistant fastener, a cap, a fastener member, and a method for attaching the lightning-resistant fastener are provided, which enhance workability and quality stability besides reliably securing an insulating property, and can lead to enhancement in safety of an airframe and reduction in manufacturing cost. A head portion 25b of a fastener main body 25 includes a head cap 50, and a shaft portion 25s of the fastener main body 25 includes a shaft cap 30, whereby a direct strike of lightning to a fastener member 24, and occurrence of an arc discharge from the fastener member 24 in the case of a lightning strike can be suppressed. A hole 52 is formed in the head cap 50, and a thread groove 52a is formed in the hole 52, whereby the head cap 50 can be reliably and easily positioned and attached to the fastener member 24.Type: GrantFiled: November 5, 2010Date of Patent: May 28, 2013Assignee: Mitsubishi Aircraft CorporationInventors: Masahiro Bessho, Wataru Nishimura, Naomoto Ishikawa, Yuichiro Kamino, Toshikatsu Nohara, Toru Hashigami, Tamaki Tsuzuki
-
Publication number: 20120250209Abstract: In an insulating cover 50A according to the present invention, a dimension of each of an outer-circumferential-side cylindrical part 50c and an inner-circumferential-side cylindrical part 50b fitting in step parts 40 and 41 in an axial direction of a fastener body 25 is set large with respect to a tip covering part 50a covering a tip surface 26a of a fastening member 26. As a result, on an outer circumferential side and an inner circumferential side of the fastening member 26, a distance from a member 22 is sufficiently ensured by the cylindrical part 50b and 50c. The tip covering part 50a is thinner than the cylindrical part 50B and 50c. Therefore, when the fastener body 25 and the fastening member 26 are fastened together, the amount of deformation of the tip covering part 50a in a thickness direction can be made small.Type: ApplicationFiled: March 28, 2012Publication date: October 4, 2012Applicant: MITSUBISHI AIRCRAFT CORPORATIONInventors: Soichiro UMEMOTO, Hideo YAMAKOSHI, Atsuhiro IYOMASA, Toru HASHIGAMI
-
Publication number: 20120234977Abstract: Provided is a coupling structure for airframe components that is capable of ensuring sufficient lightning protection capability. A conductive pattern part 40 made of a conductive material is formed around each fastener member 24 between wing surface panels 21A and 21B. The conductive pattern part 40 is formed, for example, around each of holes 21c and 21d on the plane on which the wing surface panel 21A and the wing surface panel 21B abut against each other. Then, the conductive pattern part 40 is pushed against both the wing surface panel 21A and the wing surface panel 21B by the fastening power of the fastener members 24, whereby electrical conduction between the wing surface panel 21A and the wing surface panel 21B can be achieved.Type: ApplicationFiled: March 13, 2012Publication date: September 20, 2012Applicant: Mitsubishi Aircraft CorporationInventors: Koji KAWAHARA, Hideo YAMAKOSHI, Yuichiro KAMINO, Atsuhiro IYOMASA, Toru HASHIGAMI
-
Publication number: 20120236457Abstract: A long-life lightning protection fastener or the like to prevent explosion for aircrafts at low cost is provided, the fastener having a light weight, ensuring sufficient lightning protection, and having extremely less failures and high reliability. A ring-shaped ring member 40A made of resin is mounted on a collar 26. This ring member 40A is interposed between a member 22 and the collar 26 and is in intimate contact with both of the member 22 and the collar 26, thereby sealing an interface with the member 22 for sealing and preventing the occurrence of an arc at an outer perimeter edge of the collar 26.Type: ApplicationFiled: March 14, 2012Publication date: September 20, 2012Applicant: MITSUBISHI AIRCRAFT CORPORATIONInventors: Hideo YAMAKOSHI, Yuichiro KAMINO, Yuji ASAHARA, Yasunori WATANABE, Atsuhiro IYOMASA, Toru HASHIGAMI, Kohei MURAKAMI, Tomonori OKUMURA
-
Publication number: 20120074257Abstract: There are provided a lightning-resistant fastener and a cap, which, while assuring sufficient insulation properties, provide improved workability and highly stable quality to thereby enable a reduction in the manufacturing cost of an airframe, and a method of mounting the lightning-resistant fastener. A hole 32 is formed in a cap 30, and a screw groove 32a is formed in the hole 32. The configuration enables the cap 30 to be reliably and easily positioned and installed on a fastener member 24 and reliably prevents the cap 30 from coming off after the installation thereof. This improves the workability to reduce the production cost while assuring sufficient insulation properties and enables the cap 30 to be installed with stable quality irrespective of workers. Preferably, the cap 30 is made of a resin in view of mass producibility, weight reduction, and the like.Type: ApplicationFiled: April 2, 2010Publication date: March 29, 2012Applicant: MITSUBISHI AIRCRAFT CORPORATIONInventors: Masahiro Bessho, Wataru Nishimura, Naomoto Ishikawa, Yuichiro Kamino, Toshikatsu Nohara, Toru Hashigami, Tamaki Tsuzuki
-
Publication number: 20110226896Abstract: A lightning-resistant fastener, a cap, a fastener member, and a method for attaching the lightning-resistant fastener are provided, which enhance workability and quality stability besides reliably securing an insulating property, and can lead to enhancement in safety of an airframe and reduction in manufacturing cost. A head portion 25b of a fastener main body 25 includes a head cap 50, and a shaft portion 25s of the fastener main body 25 includes a shaft cap 30, whereby a direct strike of lightning to a fastener member 24, and occurrence of an arc discharge from the fastener member 24 in the case of a lightning strike can be suppressed. A hole 52 is formed in the head cap 50, and a thread groove 52a is formed in the hole 52, whereby the head cap 50 can be reliably and easily positioned and attached to the fastener member 24.Type: ApplicationFiled: November 5, 2010Publication date: September 22, 2011Applicant: MITSUBISHI AIRCRAFT CORPORATIONInventors: Masahiro BESSHO, Wataru NISHIMURA, Naomoto ISHIKAWA, Yuichiro KAMINO, Toshikatsu NOHARA, Toru HASHIGAMI, Tamaki Tsuzuki