Patents by Inventor Nobuyuki Katsuda
Nobuyuki Katsuda 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: 11926278Abstract: An airbag device includes a seat frame that forms a skeleton of a vehicle seat on which an occupant of a vehicle sits; an airbag that is disposed on a backrest portion that supports a back of the occupant in the vehicle seat and that is deployed by supply of gas; and a gas generator that is disposed at a seating surface portion that supports buttocks of the occupant in the vehicle seat and that generates gas to be supplied to the airbag; where a part that is a portion of the seat frame and includes at least a portion of a back frame forming a skeleton of the backrest portion, is formed as a flow tube that connects to the airbag to supply gas generated by the gas generator to the airbag.Type: GrantFiled: October 12, 2020Date of Patent: March 12, 2024Assignee: DAICEL CORPORATIONInventors: Shinichiro Ukita, Tomoki Hashizume, Kenji Fukumoto, Masayuki Yamazaki, Nobuyuki Katsuda
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Patent number: 11780397Abstract: The airbag device protects the occupant seated in the vehicle seat disposed in the vehicle. An airbag device includes a first airbag group and a second airbag group that are disposed in the vehicle seat in correspondence with impacts from two different directions and that respectively include a plurality of airbags; a gas generation unit that is disposed in a seat cushion, of the vehicle seat, that supports the buttocks region of the occupant and that generates gas to be supplied to the first airbag group or the second airbag group; and a switching unit that switches the supply of gas to either the first airbag group or the second airbag group.Type: GrantFiled: October 16, 2020Date of Patent: October 10, 2023Assignee: DAICEL CORPORATIONInventors: Shinichiro Ukita, Kenji Fukumoto, Tomoki Hashizume, Masayuki Yamazaki, Nobuyuki Katsuda
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Patent number: 11713017Abstract: The present invention provides a seat frame inflator including a seat frame housing portion formed of a seat frame having a hollow structure and forming an outer shell of a pressurized gas chamber, and a partition member disposed on a hollow side of the seat frame and configured to isolate the pressurized gas chamber and a gas chamber outer region from each other. The partition member is provided with a communication hole, and a closing member configured to close the communication hole. The seat frame inflator includes an opening member disposed on the hollow side of the seat frame, and configured to open the pressurized gas chamber, and a gas discharge port formed in the seat frame to face the gas chamber outer region and configured to discharge, from the gas chamber outer region to the outside, the pressurized gas flowing from the pressurized gas chamber.Type: GrantFiled: April 20, 2020Date of Patent: August 1, 2023Assignee: DAICEL CORPORATIONInventor: Nobuyuki Katsuda
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Publication number: 20230001875Abstract: The airbag device protects the occupant seated in the vehicle seat disposed in the vehicle. An airbag device includes a first airbag group and a second airbag group that are disposed in the vehicle seat in correspondence with impacts from two different directions and that respectively include a plurality of airbags; a gas generation unit that is disposed in a seat cushion, of the vehicle seat, that supports the buttocks region of the occupant and that generates gas to be supplied to the first airbag group or the second airbag group; and a switching unit that switches the supply of gas to either the first airbag group or the second airbag group.Type: ApplicationFiled: October 16, 2020Publication date: January 5, 2023Applicant: Daicel CorporationInventors: Shinichiro UKITA, Kenji FUKUMOTO, Tomoki HASHIZUME, Masayuki YAMAZAKI, Nobuyuki KATSUDA
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Publication number: 20220410833Abstract: An airbag device includes a seat frame that forms a skeleton of a vehicle seat on which an occupant of a vehicle sits; an airbag that is disposed on a backrest portion that supports a back of the occupant in the vehicle seat and that is deployed by supply of gas; and a gas generator that is disposed at a seating surface portion that supports buttocks of the occupant in the vehicle seat and that generates gas to be supplied to the airbag; where a part that is a portion of the seat frame and includes at least a portion of a back frame forming a skeleton of the backrest portion, is formed as a flow tube that connects to the airbag to supply gas generated by the gas generator to the airbag.Type: ApplicationFiled: October 12, 2020Publication date: December 29, 2022Applicant: DAICEL CORPORATIONInventors: Shinichiro Ukita, Tomoki Hashizume, Kenji Fukumoto, Masayuki Yamazaki, Nobuyuki Katsuda
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Publication number: 20220363214Abstract: The present invention provides a seat frame inflator including a seat frame housing portion formed of a seat frame having a hollow structure and forming an outer shell of a pressurized gas chamber, and a partition member disposed on a hollow side of the seat frame and configured to isolate the pressurized gas chamber and a gas chamber outer region from each other. The partition member is provided with a communication hole, and a closing member configured to close the communication hole. The seat frame inflator includes an opening member disposed on the hollow side of the seat frame, and configured to open the pressurized gas chamber, and a gas discharge port formed in the seat frame to face the gas chamber outer region and configured to discharge, from the gas chamber outer region to the outside, the pressurized gas flowing from the pressurized gas chamber.Type: ApplicationFiled: April 20, 2020Publication date: November 17, 2022Applicant: Daicel CorporationInventor: Nobuyuki KATSUDA
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Patent number: 11407377Abstract: A gas generator including an outer vessel including a housing provided with a gas discharge port, the outer vessel accommodating therein an igniter and a gas generating agent, wherein any of surfaces of the outer vessel includes an annular fragile portion, and the annular fragile portion is a groove formed in a continuous annular shape or a groove formed in a discontinuous annular shape.Type: GrantFiled: May 11, 2018Date of Patent: August 9, 2022Assignees: DAICEL CORPORATION, HONDA MOTOR CO., LTD.Inventors: Gen Kinoshita, Nobuyuki Katsuda, Daiei Tonooka
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Publication number: 20200384943Abstract: A gas generator including an outer vessel including a housing provided with a gas discharge port, the outer vessel accommodating therein an igniter and a gas generating agent, wherein any of surfaces of the outer vessel includes an annular fragile portion, and the annular fragile portion is a groove formed in a continuous annular shape or a groove formed in a discontinuous annular shape.Type: ApplicationFiled: May 11, 2018Publication date: December 10, 2020Applicants: DAICEL CORPORATION, HONDA MOTOR CO., LTD.Inventors: Gen KINOSHITA, Nobuyuki KATSUDA, Daiei TONOOKA
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Patent number: 8245639Abstract: An igniter fixing structure includes a plurality of igniter bodies having an ignition portion and an electroconductive pin, each of the igniter bodies being fixed, by a resin, to a peripheral edge of a port formed in a plate-like portion serving as a fixing object, the number of the port being the same as that of the plurality of the igniter bodies, and a single retainer as a support member for the plurality of igniter bodies. The retainer has a plurality of support portions each having a hole for passing the electroconductive pin therethrough and a connection plate portion that connects the plurality of support portions, at least the support portions are embedded in the resin in a state in which the electroconductive pin passes through the hole, and at least the connection plate portion is disposed to abut against the plate-like portion.Type: GrantFiled: March 25, 2010Date of Patent: August 21, 2012Assignee: Daicel Chemical Industries, Ltd.Inventors: Nobuyuki Katsuda, Mikio Yabuta
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Patent number: 8225719Abstract: The present invention provides a gas generator for a restraining device of a vehicle, including: a housing being made of a resin, forming an outer shell container, having a plurality of gas discharge ports, an ignition device disposed inside the housing, a gas generating agent that is ignited and burned by activation of the ignition device, each of the gas discharge ports being formed in combination with each of a plurality of through holes of an annular plate member that is embedded in a circumferential wall surface of the housing and formed of a material selected from the group consisting of metals, ceramics, and carbon fiber, and the annular plate member being formed of an annular base plate including the plurality of through holes formed therein.Type: GrantFiled: April 22, 2010Date of Patent: July 24, 2012Assignee: Daicel Chemical Industries, Ltd.Inventors: Nobuyuki Katsuda, Mikio Yabuta
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Patent number: 7856821Abstract: An actuator includes an ignition device having an igniter main body fixed to an igniter collar and a cylinder connected to the igniter collar. The cylinder has a first sliding chamber located in a position facing the ignition device and a second sliding chamber formed in a direction perpendicular to the first sliding chamber. A first piston is disposed inside the first sliding chamber, one end surface of the first piston having a first inclined surface inclined in one direction, and the other end surface opposing the ignition device, and a second piston is disposed inside the second sliding chamber. A circumferential surface of the second piston is provided with a recess formed with a second inclined surface inclining in the central axis direction, and the second piston is provided such that the first inclined surface abuts against the second inclined surface.Type: GrantFiled: September 6, 2007Date of Patent: December 28, 2010Assignee: Daicel Chemical Industries, Ltd.Inventors: Nobuyuki Katsuda, Kenji Numoto
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Publication number: 20100269727Abstract: The present invention provides a gas generator for a restraining device of a vehicle, including: a housing being made of a resin, forming an outer shell container, having a plurality of gas discharge ports, an ignition device disposed inside the housing, a gas generating agent that is ignited and burned by activation of the ignition device, each of the gas discharge ports being formed in combination with each of a plurality of through holes of an annular plate member that is embedded in a circumferential wall surface of the housing and formed of a material selected from the group consisting of metals, ceramics, and carbon fiber, and the annular plate member being formed of an annular base plate including the plurality of through holes formed therein.Type: ApplicationFiled: April 22, 2010Publication date: October 28, 2010Inventors: Nobuyuki KATSUDA, Mikio Yabuta
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Publication number: 20100242779Abstract: The present invention provides an igniter fixing structure, including a plurality of igniter bodies, having an ignition portion and an electroconductive pin, each of the igniter bodies being fixed, by a resin, to a peripheral edge of a port formed in a plate-like portion serving as a fixing object, the number of the port being the same as that of the plurality of the igniter bodies and a single retainer as a support member for the plurality of igniter bodies, the retainer having a plurality of support portions each having a hole for passing the electroconductive pin therethrough and a connection plate portion that connects the plurality of support portions, at least the support portions being embedded in the resin in a state in which the electroconductive pin passes through the hole, at least the connection plate portion being disposed to abut against the plate-like portion.Type: ApplicationFiled: March 25, 2010Publication date: September 30, 2010Inventors: Nobuyuki KATSUDA, Mikio Yabuta
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Patent number: 7758070Abstract: An inflator for a restraining system for a vehicle includes: an inflator housing storing a gas generation source, a diffuser having a plurality of gas discharge holes for discharging gas provided within the inflator housing, a gas discharge channel member including a gas outlet port and being attached to cover an outer surface of the diffuser, the gas discharge channel member having a gas-introducing port communicating with at least one of the gas discharge holes and a pin-introducing port communicating with at least one of the remaining gas discharge holes, and the diffuser and the gas discharge channel member, fixed by a fixing pin inserted into both of the at least one of the remaining gas discharge holes and the pin-introducing port.Type: GrantFiled: February 19, 2008Date of Patent: July 20, 2010Assignee: Daicel Chemical Industries, Ltd.Inventors: Nobuyuki Katsuda, Mikio Yabuta
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Patent number: 7614875Abstract: A gas generator includes, a housing having a gas discharge port; at least one combustion chamber accommodating a gas generating agent therein; a cylindrical filter disposed between the gas discharge port and the combustion chamber; and at least one ignition device for igniting and combusting the gas generating agent, each device comprising an igniter assembly in which an electric igniter is enclosed and fixed by a metal member and a resin portion. The igniter assembly has, in the resin portion, a holder accommodation space disposed over an opening formed in a bottom portion of the housing, and fixed by a holder inserted from the outside into the opening. An inner wall surface of the holder accommodation space has concave and convex portions that engage convex and concave portions of the holder, so that the igniter assembly is fixed without being welded to the bottom portion of the housing.Type: GrantFiled: August 27, 2007Date of Patent: November 10, 2009Assignee: Daicel Chemical Industries, Ltd.Inventors: Nobuyuki Katsuda, Shingo Oda
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Patent number: 7556289Abstract: A gas generator for an air bag includes; a housing having a gas discharge port, a first combustion chamber and a second combustion chamber, provided inside the housing and charged with a gas generating agent, a first ignition device and a second ignition device provided in the two combustion chambers, respectively, the second ignition device provided with an electric igniter, a piston, an enhancer agent, a detonator provided in the enhancer agent, opposite to the distal end of the piston, and a tether connected to the rear end portion of the piston, the tether being tied around an air bag when accommodated into an air bag module, the tether controlling an inflation direction of the air bag by fastening the inflating air bag when the first ignition device is activated, the tether being configured to be released from the piston when the second ignition device is activated.Type: GrantFiled: July 27, 2006Date of Patent: July 7, 2009Assignee: Daicel Chemical Industries, Ltd.Inventors: Nobuyuki Katsuda, Mikio Yabuta
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Patent number: 7510210Abstract: The present invention provides an air bag module comprising; a module case accommodating a gas generator and an airbag, the gas generator having a housing, which is a assembly of a first base plate and a second base plate provided with a plurality of gas discharge ports, and at least one combustion chamber accommodated inside the housing, the module case being attached to a connection section of the first base plate and the second base plate at an opening portion of the module case.Type: GrantFiled: August 7, 2006Date of Patent: March 31, 2009Assignee: Daicel Chemical Industries, Ltd.Inventors: Nobuyuki Katsuda, Mikio Yabuta
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Publication number: 20090045614Abstract: The present invention relates to a safety ensuring device for ensuring safety of an occupant when an impact caused by a collision or a rapid deceleration is applied to the occupant wearing a seatbelt when a vehicle runs and an occupant-restraining performance degrades, including: a movable portion that is disposed in a seat portion of a vehicle seat and moves the seat portion up and down; and a drive portion that is accommodated inside the vehicle seat and moves the movable portion up and down, wherein the drive portion moves the movable portion up and down by an electric drive device upon receiving electric signals from a sensor installed on the vehicle and a control unit connected to the sensor, and at least a pre-crash sensor is provided as the sensor.Type: ApplicationFiled: August 5, 2008Publication date: February 19, 2009Applicant: DAICEL CHEMICAL INDUSTRIES,LTD.Inventor: Nobuyuki Katsuda
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Patent number: 7487996Abstract: The present invention provides a small, high-output gas generator for an air bag. A filter 30 is disposed between a first gas generator 11 and a second gas generator 21. Gas discharged from the first gas generator 11 and gas discharged from the second gas generator 21 pass through the same filter 30, and are then discharged from a second gas discharge port 36 to inflate the air bag.Type: GrantFiled: August 30, 2005Date of Patent: February 10, 2009Assignee: Daicel Chemical Industries, Ltd.Inventors: Nobuyuki Katsuda, Mikio Yabuta
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Patent number: 7419183Abstract: Stud bolts 51, 52 are fixed by welding to the side faces of a first closure 30 and a second closure 40, which are connected to a cylindrical housing 20. When connecting a gas introduction port of the air bag to a diffuser portion 43, the stud bolts 51, 52 do not cause an obstruction, and hence the attachability of an inflator 10 to a module case using the stud bolts 51, 52 is not impaired.Type: GrantFiled: February 4, 2005Date of Patent: September 2, 2008Assignee: Daicel Chemical Industries, Ltd.Inventors: Masakazu Tokuda, Masayuki Nakayasu, Nobuyuki Katsuda