Patents by Inventor Akihiko Suehiro
Akihiko Suehiro 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: 7516983Abstract: A gas generator, including a housing made of metal and including an initiator shell and a closure shell; at least one combustion chamber formed in the housing and configured to be packed with a gas generant that generates a high temperature gas by burning; at least one filter member arranged around the at least one combustion chamber; at least one igniter located in the housing and configured to ignite and burn the gas generant in the at least one combustion chamber; and a plurality of gas discharge holes formed in the housing and configured to discharge gas generated in the at least one combustion chamber.Type: GrantFiled: February 6, 2003Date of Patent: April 14, 2009Assignee: Nippon Kayaku Kabushiki-KaishaInventors: Akihiko Suehiro, Takayoshi Dosai, Tetsuo Saito, Tameo Kawakami, Eishi Sato
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Patent number: 7398996Abstract: A gas generator is provided with a metal housing constituted by an initiator shell and a closure shell, a combustion chamber which is formed inside the housing and into which gas generants generating a high-temperature gas through combustion are loaded, a filter member disposed around the combustion chamber, an igniter mounted into the housing and igniting and burning the gas generants inside the combustion chamber and a plurality of gas discharge openings formed on the housing and discharging the gas generated in the combustion chamber.Type: GrantFiled: August 6, 2004Date of Patent: July 15, 2008Assignee: Nippon Kayaku Kabushiki KaishaInventors: Tetsuo Saito, Takayoshi Dosai, Akihiko Suehiro, Shougo Matono
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Publication number: 20070063495Abstract: A fitting structure of a gas generator (1) which is provided with a metal housing (10) constituted by an initiator shell (9) and a closure shell (8), a combustion chamber (12) which is formed inside the housing (10) and into which gas generants (11) generating a high-temperature gas through combustion are loaded, a filter member (13) disposed around the combustion chamber (12), an igniter (14) mounted into the housing (10) and igniting and burning the gas generants (11) inside the combustion chamber (12), and a plurality of gas discharge openings (7) formed in the housing (10) and discharging the gas generated in the combustion chamber (12), wherein either or both of the initiator shell (9) and the closure shell (8) constituting the housing (10) are provided with semi-spherical or semi-oval end plate portions (18, 16) and cylindrical portions (17, 15) having a diameter D formed continuously from these end plate portions (18, 16), a gas generator whose H/D of a ratio of the bottom distance H between the end plType: ApplicationFiled: August 6, 2004Publication date: March 22, 2007Applicant: NIPPON KAYAKU KAVUSHIKI KAISHAInventors: Tetsuo Saito, Takayoshi Dosai, Akihiko Suehiro, Naoki Izaki
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Publication number: 20070063494Abstract: The present invention provides a gas generator capable of sufficiently loading gas generants into a combustion chamber, while the safety of the housing is secured, and also burning the gas generants inside the combustion chamber uniformly and effectively. A gas generator A is provided with a metal housing 3 having an initiator shell 1 and a closure shell 2, a combustion chamber 5 into which gas generants 4 are loaded and an igniter 7 for igniting and burning the gas generants 4, in which the initiator shell 1 and the closure shell 2 have semi-spherical end plate portions 10 and 14, H/D of a ratio of H, a length of the housing to D, an outer diameter of the cylindrical portions 9 and 13 continuously formed from the end plate portions 10 and 14 is in the range from 0.4 to 1.Type: ApplicationFiled: August 5, 2004Publication date: March 22, 2007Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tetsuo Saito, Takayoshi Dosai, Akihiko Suehiro, Kazuhisa Tamura
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Publication number: 20070039508Abstract: A gas generator (30) is provided with a metal housing (3) constituted by an initiator shell (1) and a closure shell (2), a combustion chamber (5) which is formed inside the housing (3) and into which gas generants (4) generating a high-temperature gas through combustion are loaded, a filter member (6) disposed around the combustion chamber (5), an igniter (7) mounted into the housing (3) and igniting and burning the gas generants (4) inside the combustion chamber (5) and a plurality of gas discharge openings (8a, 8b) formed on the housing (3) and discharging the gas generated in the combustion chamber (5), and in which either or both of the initiator shell (1) and the closure shell (2) constituting the housing (3) are provided with semi-spherical or semi-oval end plate portions (14, 10) and cylindrical portions (13, 9) having a diameter D formed continuously from these end plate portions (14, 10), H/D or a ratio of the bottom distance H between the end plate portion (14) of the initiator shell (1) and that (Type: ApplicationFiled: August 6, 2004Publication date: February 22, 2007Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tetsuo Saito, Takayoshi Dosai, Akihiko Suehiro, Shougo Matono
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Publication number: 20050225064Abstract: A gas generator comprising a housing (3) made of metal and having an initiator shell (1) and a closure shell (2), (a) combustion chamber(s) (5, 5a, 5b) formed in the housing (3) and packed with gas generant (4) that generates high temperature gas by burning, (a) filter member(s) (6, 6a, 6b) arranged around the combustion chamber(s) (5, 5a, 5b), (an) igniter device(s) (7, 7a, 7b) put in the housing (3) for igniting and burning the gas generant (4) in the combustion chamber(s) (5, 5a, 5b), and a plurality of gas discharge holes (8) formed at the housing (3), for discharging gas generated in the combustion chamber(s) (5, 5a, 5b), wherein either or both of the initiator shell (1) and the closure shell (2) forming the housing (3) has a head portion (14, 10) of a semispherical form or an oval semispherical form and a cylindrical portion (13, 9) of a diameter (D) formed continuously from the head portion (14, 10), and wherein a ratio H/D between the diameter D of the cylindrical portion (13, 9) and a distance H betwType: ApplicationFiled: February 6, 2003Publication date: October 13, 2005Applicant: Nippon Kayaku Kabushiki-KaishaInventors: Akihiko Suehiro, Takayoshi Dosai, Tetsuo Saito, Tameo Kawakami, Eishi Sato
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Patent number: 6890002Abstract: It is an object of the present invention to provide a gas generator suitable for an organic-compound gas generating agent and excellent in heat resistance, pressure resistance, and sealing. In the gas generator, a housing (4) is formed by joining an iron- or steel-made upper lid (2), consisting of a top plate (2a) and a side cylinder (1a) extending downward from an entire circumferential edge thereof and provided with many gas discharge holes (8) with an iron- or steel-made lower lid (3), consisting of a bottom plate (3f), side cylinder (1b) extending upward from an entire circumferential edge thereof, and an ignitor holding portion (3a) formed integrally with the bottom plate (3f) and for fixing by caulking an ignitor (30). In the housing (4), the ignitor (30) and a gas generating agent (6) are arranged in the order mentioned from a center thereof.Type: GrantFiled: July 26, 2000Date of Patent: May 10, 2005Assignee: Nippon Kayaku Kabushiki-KaishaInventors: Akihiko Suehiro, Koji Tanaka, Takashi Saso
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Patent number: 6321131Abstract: An editor in a CAD system, which assigns different command functions to each of a plurality of buttons, enables commands for editing processing such as “movement”, “deletion”, and copying” to be issued by the corresponding buttons, and adds one polygon and another polygon by a first button or subtracts them from each other by a second button and, further, even when one of the commands of editing processing is being executed, makes it possible to perform a “change”, “cancellation”, “confirmation”, etc. of the mode of processing by operation of the corresponding buttons, thereby enabling change of a once input parameter or initialization of once input information, whereby the efficiency of work in pattern design using a pointing device can be improved.Type: GrantFiled: January 29, 1998Date of Patent: November 20, 2001Assignee: Fujitsu LimitedInventors: Touru Kumada, Eiichi Konno, Isamu Maejima, Kazunori Kumagai, Akihiko Suehiro
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Patent number: 6219068Abstract: An editor in a CAD system, which assigns different command functions to each of a plurality of buttons, enables commands for editing processing such as “movement”, “deletion”, and copying” to be issued by the corresponding buttons, and adds one polygon and another polygon by a first button or subtracts them from each other by a second button and, further, even when one of the commands of editing processing is being executed, makes it possible to perform a “change”, “cancellation”, “confirmation”, etc. of the mode of processing by operation of the corresponding buttons, thereby enabling change of a once input parameter or initialization of once input information, whereby the efficiency of work in pattern design using a pointing device can be improved.Type: GrantFiled: January 22, 1998Date of Patent: April 17, 2001Assignee: Fujitsu LimitedInventors: Touru Kumada, Eiichi Konno, Isamu Maejima, Kazunori Kumagai, Akihiko Suehiro
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Patent number: 5373628Abstract: An automatic wiring method includes a first step of finding locations at which diagonal wiring is required at the time of wiring processing, a second step of approximating the shapes of part pins associated with these locations by rectangular shapes and reducing and changing these approximated shapes into shapes capable of being wired by 90.degree. turns, a third step of executing automatic wiring processing for 90.degree. turns, a fourth step of finding a location at which a clearance between a wiring pattern obtained by the wiring processing for 90.degree. turns and an actual part pin becomes less than a stipulated value and a clearance error is generated, and a fifth step of shaping a 90.degree.-turn wiring pattern at this location into a diagonal wiring pattern so as to satisfy the clearance.Type: GrantFiled: September 24, 1992Date of Patent: December 20, 1994Assignee: Fujitsu LimitedInventors: Akihiko Suehiro, Tsuneo Oka
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Patent number: D490822Type: GrantFiled: March 26, 2003Date of Patent: June 1, 2004Assignee: Nippon Kayaku Kabushiki KaishaInventors: Akihiko Suehiro, Takayoshi Dosai, Tetsuo Saito
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Patent number: D499746Type: GrantFiled: November 24, 2003Date of Patent: December 14, 2004Assignee: Nippon Kayaku Kabushiki KaishaInventors: Akihiko Suehiro, Takayoshi Dosai, Tetsuo Saito