Patents by Inventor Masaaki Yokota
Masaaki Yokota 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: 11936526Abstract: The network device information management apparatus includes: a log data acquisition unit configured to acquire log data from each of the plurality of devices, the log data including information about components of the plurality of devices; and an inventory information estimation unit configured to exclude a common portion of the log data before and after registration of the component to extract a component configuration indicating information about the component newly registered to the device, compare the extracted component configuration with the component configuration extracted from a component registered to another device, estimate the common portion as inventory information, and store the estimated inventory information in storage means.Type: GrantFiled: June 21, 2019Date of Patent: March 19, 2024Assignee: Nippon Telegraph and Telephone CorporationInventors: Masahiro Yokota, Masatoshi Namiki, Yuji Minato, Masaaki Inami, Daisaku Shimazaki, Hideki Maeda
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Patent number: 7954893Abstract: A headrest for vehicle seat includes: a generally inverted-U-shaped frame having a pair of headrest stays defined therein; and an impact absorption bar fixedly connected between those two headrest stays. The impact absorption bar is located in a predetermined spaced relation with an upper horizontal frame portion of the generally inverted-U-shaped frame. When a rear-end collision or the like occurs, a head of seat occupant is stably received by those impact absorption bar and upper horizontal frame portion, while the impact absorption bar being readily deformed by backward excessive great load applied thereto from the seat occupant's head to thereby absorb and reduce a corresponding impact energy to be imparted to the head.Type: GrantFiled: March 19, 2009Date of Patent: June 7, 2011Assignee: Tachi-S Co., Ltd.Inventors: Masaaki Yokota, Atsushi Koike
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Patent number: 7758114Abstract: In a seat back with movable headrest, a pressure receiving element is movably provided, which includes pressure receiving regions for receiving loads applied from lumber and dorsal parts of seat occupant. The pressure receiving element is movably connected with a crank member which is movably provided between two lateral frame members of seat back frame. Further, that pressure receiving element is connected with a support shaft extended between a par of rotating links rotatably arranged on the respective afore-said two lateral frame members. A biasing element is provided to normally bias the headrest to a home position.Type: GrantFiled: July 15, 2008Date of Patent: July 20, 2010Assignee: Tachi-S Co. Ltd.Inventors: Masaaki Yokota, Atsushi Koike
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Publication number: 20100013275Abstract: In a seat back with movable headrest, a pressure receiving element is movably provided, which includes pressure receiving regions for receiving loads applied from lumber and dorsal parts of seat occupant The pressure receiving element is movably connected with a crank member which is movably provided between two lateral frame members of seat back frame. Further, that pressure receiving element is connected with a support shaft extended between a par of rotating links rotatably arranged on the respective afore-said two lateral frame members. A biasing element is provided to normally bias the headrest to a home position.Type: ApplicationFiled: July 15, 2008Publication date: January 21, 2010Applicant: TACHI-S CO., LTD.Inventors: Masaaki Yokota, Atsushi Koike
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Publication number: 20090200843Abstract: A headrest for vehicle seat includes: a generally inverted-U-shaped frame having a pair of headrest stays defined therein; and an impact absorption bar fixedly connected between those two headrest stays. The impact absorption bar is located in a predetermined spaced relation with an upper horizontal frame portion of the generally inverted-U-shaped frame. When a rear-end collision or the like occurs, a head of seat occupant is stably received by those impact absorption bar and upper horizontal frame portion, while the impact absorption bar being readily deformed by backward excessive great load applied thereto from the seat occupant's head to thereby absorb and reduce a corresponding impact energy to be imparted to the head.Type: ApplicationFiled: March 19, 2009Publication date: August 13, 2009Applicant: TACHI-S CO., LTD.Inventors: Masaaki YOKOTA, Atsushi KOIKE
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Patent number: 7530633Abstract: In a seat back structure, an auxiliary frame having a pressure receiving portion and a headrest mounted thereon is movably provided in seat back frame via guide element and link element. The guide and link elements are respectively disposed in upper and lower portions respectively of the auxiliary and seat back frames. Biasing element is provided to the link element, such that a line of force of the former is positioned on one side of a pivotal point of the link element, thereby retaining the headrest at initial position, and that, when excessive backward load is applied to the pressure receiving portion, the link element is rotated to displace the line of force toward another side of the first pivotal point, whereby the auxiliary frame is displaced forwardly and upwardly of the seat back frame, thereby causing the headrest to move to a position for supporting a head of seat occupant.Type: GrantFiled: October 17, 2006Date of Patent: May 12, 2009Assignee: Tachi-S Co., Ltd.Inventors: Masaaki Yokota, Atsushi Koike
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Patent number: 7517020Abstract: A seat height adjustment mechanism is provided, which includes a backward link element, a ratchet-type drive mechanism operable by an operating lever to cause vertical movement of the backward link element to adjust height of seat, and a locking mechanism. The backward link element is normally locked by the locking mechanism to reinforce the backward link element itself. When the operating lever is rotated during an idle stroke S) inherently given in the ratchet-type drive mechanism, the locking mechanism is actuated to unlock the backward link element, thereby allowing the backward link element to be vertically displaceable through operation of the ratchet-type drive mechanism by further rotation of the operating lever.Type: GrantFiled: June 12, 2007Date of Patent: April 14, 2009Assignee: Tachi-S Co., Ltd.Inventor: Masaaki Yokota
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Publication number: 20080309131Abstract: In a seat back structure, an auxiliary frame having a headrest mounted thereon is provided independently of a seat back frame and movable via link element and guide element along a predetermined path with respect to the seat back frame. The guide element includes: a bracket having one end pivoted to the seat back frame; a guide hole formed in the bracket; and a guide pin provided to the seat back frame, the guide pin being slidably engaged in the guide hole. A buffer member is provided to another end of the bracket. Shortly after the headrest has been moved to a headrest receiving point in a rear-end collision case, the headrest is subjected to abrupt backward displacement under backward inertia of seat occupant, but, such abrupt backward displacement of headrest is decelerated by the buffer member.Type: ApplicationFiled: June 13, 2007Publication date: December 18, 2008Applicant: Tachi-S Co., Ltd.Inventors: Masaaki YOKOTA, Atsushi Koike, Yamato Higuchi
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Patent number: 7360832Abstract: Impact absorption structure is provided in side frame element of seat cushion frame, wherein the side frame element is basically of a closed cross-section portion therein, including forward and backward support points therein. In the structure, an opened cross-section area is defined in the closed cross-section by forming a cut-away portion in a lower part of a forward local region of such closed cross-section portion between the forward and backward support points, so that the opened cross-section area is deformable at said cut-away portion by a great load transmitted from a seat back frame thereto, thereby absorbing a corresponding impact.Type: GrantFiled: January 12, 2006Date of Patent: April 22, 2008Assignee: Tachi-S Co. Ltd.Inventors: Masaaki Yokota, Masamitsu Minai
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Publication number: 20080088158Abstract: In a seat back structure, an auxiliary frame having a pressure receiving portion and a headrest mounted thereon is movably provided in seat back frame via guide element and link element. The guide and link elements are respectively disposed in upper and lower portions respectively of the auxiliary and seat back frames. Biasing element is provided to the link element, such that a line of force of the former is positioned on one side of a pivotal point of the link element, thereby retaining the headrest at initial position, and that, when excessive backward load is applied to the pressure receiving portion, the link element is rotated to displace the line of force toward another side of the first pivotal point, whereby the auxiliary frame is displaced forwardly and upwardly of the seat back frame, thereby causing the headrest to move to a postion for supporting a head of seat occupant.Type: ApplicationFiled: October 17, 2006Publication date: April 17, 2008Applicant: Tachi-S Co., Ltd.Inventors: Masaaki Yokota, Atsushi Koike
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Publication number: 20080007104Abstract: A seat height adjustment mechanism is provided, which includes a backward link element, a ratchet-type drive mechanism operable by an operating lever to cause vertical movement of the backward link element to adjust height of seat, and a locking mechanism. The backward link element is normally locked by the locking mechanism to reinforce the backward link element itself. When the operating lever is rotated during an idle stroke (S) inherently given in the ratchet-type drive mechanism, the locking mechanism is actuated to unlock the backward link element, thereby allowing the backward link element to be vertically displaceable through operation of the ratchet-type drive mechanism by further rotation of the operating lever.Type: ApplicationFiled: June 12, 2007Publication date: January 10, 2008Applicant: Tachi-S Co., Ltd.Inventor: Masaaki Yokota
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Publication number: 20070158983Abstract: Impact absorption structure is provided in side frame element of seat cushion frame, wherein the side frame element is basically of a closed cross-section portion therein, including forward and backward support points therein. In the structure, an opened cross-section area is defined in the closed cross-section by forming a cut-away portion in a lower part of a forward local region of such closed cross-section portion between the forward and backward support points, so that the opened cross-section area is deformable at said cut-away portion by a great load transmitted from a seat back frame thereto, thereby absorbing a corresponding impact.Type: ApplicationFiled: January 12, 2006Publication date: July 12, 2007Applicant: TACHI-S CO. LTD.Inventors: Masaaki Yokota, Masamitsu Minai
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Patent number: 6986493Abstract: A seat slide device including two slide assemblies each having an upper slide element which is slid by a drive unit along a lower track element via a flexible drive transmission element. The drive unit is provided in the seat and the flexible drive transmission element is arranged between the drive unit and two slide assemblies, such that a part of the flexible drive transmission element extends along a direction in which the two slide assemblies extend. An auxiliary flexible drive transmission element may be added to insure imparting a drive force to the upper slide element. A lock operation/control system is provided to insure precise locking and unlocking of the upper slide element with respect to the lower track element, while simultaneously effecting selective switch-over operation of the drive unit to cause forward and backward movement of the upper slide element along the lower track element.Type: GrantFiled: March 9, 2004Date of Patent: January 17, 2006Assignee: Tachi-S Co., Ltd.Inventor: Masaaki Yokota
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Patent number: 6923415Abstract: A seat slide device for a vehicle is provided which comprises a lower rail, an upper rail and a lock mechanism for releasably locking the upper rail to the lower rail. The lock mechanism includes one or more locking fingers pivotally installed on an upper rail side, a plurality of engaged portions provided to a lower rail side, and a biasing unit for urging the one or more locking fingers in the direction to engage a corresponding number of the engaged portions. The one or more locking fingers and the biasing unit are disposed within a space between the upper rail and the lower rail. The lock mechanism further includes a lock plate having the engagement portions. The lock plate is an independent part, disposed within the space and secured to the lower rail.Type: GrantFiled: December 11, 2003Date of Patent: August 2, 2005Assignees: Fuji Kiko Co., Ltd., Tachi-S Co., Ltd.Inventors: Kazuhiro Yokoi, Masaaki Yokota
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Patent number: 6857613Abstract: A seat slide device in which an upper slide element is slid by a drive unit along a lower track element via a flexible drive transmission element. The drive unit is provided in a floor, and the flexible drive transmission element is arranged between the drive unit and upper slide element, such that a whole drive transmission path assumes a generally “Z” or “inverted Z” shape in plan, or a triangular shape in plan. An auxiliary flexible drive transmission element may be added so that the whole drive transmission path assumes a generally “figure-of-eight” shape in plan. A lock operation/control system is provided to insure precise locking and unlocking of the upper slide element with respect to the lower track element, while simultaneously effecting selective switch-over operation of the drive unit to cause forward and backward movement of the upper slide element along the lower track element.Type: GrantFiled: February 24, 2004Date of Patent: February 22, 2005Assignee: Tachi-S Co., LTDInventor: Masaaki Yokota
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Publication number: 20040222348Abstract: A seat slide device including two slide assemblies each having an upper slide element which is slid by a drive unit along a lower track element via a flexible drive transmission element. The drive unit is provided in the seat and the flexible drive transmission element is arranged between the drive unit and two slide assemblies, such that a part of the flexible drive transmission element extends along a direction in which the two slide assemblies extend. An auxiliary flexible drive transmission element may be added to insure imparting a drive force to the upper slide element. A lock operation/control system is provided to insure precise locking and unlocking of the upper slide element with respect to the lower track element, while simultaneously effecting selective switch-over operation of the drive unit to cause forward and backward movement of the upper slide element along the lower track element.Type: ApplicationFiled: March 9, 2004Publication date: November 11, 2004Applicant: TACHI-S CO., LTDInventor: Masaaki Yokota
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Publication number: 20040164218Abstract: A seat slide device in which an upper slide element is slid by a drive unit along a lower track element via a flexible drive transmission element. The drive unit is provided in a floor, and the flexible drive transmission element is arranged between the drive unit and upper slide element, such that a whole drive transmission path assumes a generally “Z” or “inverted Z” shape in plan, or a triangular shape in plan. An auxiliary flexible drive transmission element may be added so that the whole drive transmission path assumes a generally “figure-of-eight” shape in plan. A lock operation/control system is provided to insure precise locking and unlocking of the upper slide element with respect to the lower track element, while simultaneously effecting selective switch-over operation of the drive unit to cause forward and backward movement of the upper slide element along the lower track element.Type: ApplicationFiled: February 24, 2004Publication date: August 26, 2004Applicant: Tachi-S Co., Ltd.Inventor: Masaaki Yokota
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Publication number: 20040118990Abstract: A seat slide device for a vehicle is provided which comprises a lower rail, an upper rail and a lock mechanism for releasably locking the upper rail to the lower rail. The lock mechanism includes one or more locking fingers pivotally installed on an upper rail side, a plurality of engaged portions provided to a lower rail side, and a biasing unit for urging the one or more locking fingers in the direction to engage a corresponding number of the engaged portions. The one or more locking fingers and the biasing unit are disposed within a space between the upper rail and the lower rail. The lock mechanism further includes a lock plate having the engagement portions. The lock plate is an independent part, disposed within the space and secured to the lower rail.Type: ApplicationFiled: December 11, 2003Publication date: June 24, 2004Applicants: FUJI KIKO CO., LTD., TACHI-S CO., LTD.Inventors: Kazuhiro Yokoi, Masaaki Yokota
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Patent number: 6637824Abstract: An arrangement for securing springs in a vehicle seat frame, which comprises holes formed in the vehicle seat frame and anchor members. The anchor members are each formed by a plate spring comprising a generally “U” shaped body portion and a pair of flange portions, with a whole of such metallic plate spring being coated with a synthetic resin material. Each of the anchor members is fitted in each of the holes, and each of the support springs is engaged with the generally “U” shaped body portion of each of the anchor members, whereby the support springs are secured in the vehicle seat frame. In this arrangement, a through-hole may be formed in that anchor member's “U” shaped body portion, so that other support springs of different modes may each be engaged in such through-hole, instead of being engaged with the “U” shaped body portion.Type: GrantFiled: May 30, 2002Date of Patent: October 28, 2003Assignee: Tachi-S Co., Ltd.Inventor: Masaaki Yokota
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Patent number: 6059345Abstract: A slide rail device for a vehicle seat including a lower rail member fixed on a floor of the vehicle and an upper rail member slidably fitted in the lower rail member. Basically, a stopper and a notch are provided respectively at the forward and rearward ends of the upper rail member, while a striker is provided at the floor of the vehicle, erecting therefrom. When the upper rail member is located at a home position upon the lower rail member, the stopper is abutted against the forward end of the upper rail member and side of the floor, with the notch being engaged over the striker, whereby the upper rail member is prevented against separation from the lower rail member.Type: GrantFiled: June 18, 1998Date of Patent: May 9, 2000Assignee: Tachi-S Co., Ltd.Inventor: Masaaki Yokota