# US 11,898,350 B2 · Ceiling panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,898,350 B2 - Document ID: US11898350B2 - Status: Granted - Kind: B2 - Application number: 17/434,380 - Filed: 2020-01-30 - Published: 2022-05-12 - Granted: 2024-02-13 - Earliest claimed: 2019-02-28 - Assignees: Panasonic Intellectual Property Management Co., Ltd. - Applicants: Panasonic Intellectual Property Management Co., Ltd. - Inventors: Koya Tanaka; Yoshihiro Okada; Tatsuji Ono - Web page: https://patentgrep.com/patent/US11898350B2 ## CPC - E04B 9/0435: {having connection means at the edges} - B32B 3/06: for securing layers together; for attaching the product to another member, e.g. to a support {, or to another product, e.g. groove/tongue, interlocking} - B32B 5/02: characterised by structural features of a {fibrous or filamentary} layer {(layer formed of metallic wires B32B15/02; layer formed of natural mineral fibres B32B19/02; layer formed of wood fibres B32B21/02)} - B32B 5/18: characterised by features of a layer {of} foamed material - B32B 5/245: {another layer next to it being a foam layer} - B32B 5/26: another layer {next to it} also being fibrous or filamentary {(relative arrangement of fibres or filaments of different layers B32B5/12)} - B32B 13/00: Layered products comprising a {a layer of} water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material - B32B 13/14: next to a fibrous or filamentary layer - B32B 15/046: {of foam} - B32B 15/14: next to a fibrous or filamentary layer - B32B 15/20: comprising aluminium or copper {(B32B15/016 and B32B15/017 take precedence)} - E04B 9/245: {by means of screws, bolts or clamping strips held against the underside of the supporting construction (E04B9/26 takes precedence)} - E04B 9/248: {by means of permanent magnetic force held against the underside of the supporting construction} - E04C 2/28: combinations of materials fully covered by groups E04C2/04 and E04C2/08 - E04C 2/38: with attached ribs, flanges, or the like, e.g. framed panels (concerned with attaching to other panels or elements to form a structure, see the places for the relevant structure, e.g. E04B2/00) - B32B 2255/06: on metal layer - B32B 2260/021: Fibrous or filamentary layer - B32B 2260/046: Synthetic resin - B32B 2262/101: Glass fibres - B32B 2262/108: Rockwool fibres - B32B 2266/0228: Aromatic vinyl resin, e.g. styrenic (co)polymers - B32B 2266/025: Polyolefin - B32B 2266/0271: Epoxy resin - B32B 2266/0278: Polyurethane - B32B 2307/3065: Flame resistant or retardant, fire resistant or retardant - B32B 2419/00: Buildings or parts thereof - E04C 2002/001: {Mechanical features of panels} - E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001}) - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - E04C: STRUCTURAL ELEMENTS; BUILDING MATERIALS (for bridges E01D; specially designed for insulation or other protection E04B; elements used as building aids E04G; for mining E21; for tunnels E21D; structural elements with broader range of application than for building engineering F16, particularly F16S) ## Abstract A ceiling panel having a connection portion at one of end portions on both sides in a first direction of a panel body in a shape of a rectangular flat plate, the connection portion connecting with a connected portion of an adjacent ceiling panel. The connection portion is fixed to the end portion by a fastener, the fastener being fastened to an insertion part inserted into a layer of the panel body from a cut portion opening on a back face of the end portion so as to penetrate a securing part provided along the back face of the end portion. ## Claims ### Claim 1 A ceiling panel having a connection portion at one of end portions on both sides in a first direction of a panel body in a shape of a rectangular flat plate, the connection portion connecting with a connected portion of an adjacent ceiling panel, wherein the connection portion is fixed to the end portion by a fastener, the fastener being fastened to an insertion part inserted into a layer of the panel body from a cut portion opening on a back face of the end portion so as to penetrate a securing part provided along the back face of the end portion. ### Claim 2 (depends on 1) The ceiling panel according to claim 1, wherein the connection portion is provided for a connection member having a base end side part constituting the securing part, and the cut portion is provided so as to extend in the first direction. ### Claim 3 (depends on 2) The ceiling panel according to claim 2, wherein the insertion part is bent from one side portion of the base end side part in a second direction orthogonal to the first direction and is integrally provided for the connection member. ### Claim 4 (depends on 2) The ceiling panel according to claim 2, wherein the base end side part has an extension portion extending inward in the first direction further than the insertion part. ### Claim 5 (depends on 1) The ceiling panel according to claim 1, wherein the connection portion is provided for a connection member having the insertion part, and the cut portion is provided so as to extend in the second direction orthogonal to the first direction. ### Claim 6 (depends on 1) The ceiling panel according to claim 1, wherein the cut portion is provided at two positions spaced in parallel, the insertion part is inserted into one cut portion and a tip end portion in an insertion direction of the insertion part is exposed on a back face side of the panel body through the other cut portion. ### Claim 7 (depends on 1) The ceiling panel according to claim 1, wherein the panel body is constructed such that a reinforcement layer is piled upon a back face side of a base member of a resin foam system or a fiber system, and the cut portion is formed by penetrating the reinforcement layer. ### Claim 8 (depends on 3) The ceiling panel according to claim 3, wherein the base end side part has an extension portion extending inward in the first direction further than the insertion part. ### Claim 9 (depends on 2) The ceiling panel according to claim 2, wherein the cut portion is provided at two positions spaced in parallel, the insertion part is inserted into one cut portion and a tip end portion in an insertion direction of the insertion part is exposed on a back face side of the panel body through the other cut portion. ### Claim 10 (depends on 3) The ceiling panel according to claim 3, wherein the cut portion is provided at two positions spaced in parallel, the insertion part is inserted into one cut portion and a tip end portion in an insertion direction of the insertion part is exposed on a back face side of the panel body through the other cut portion. ### Claim 11 (depends on 4) The ceiling panel according to claim 4, wherein the cut portion is provided at two positions spaced in parallel, the insertion part is inserted into one cut portion and a tip end portion in an insertion direction of the insertion part is exposed on a back face side of the panel body through the other cut portion. ### Claim 12 (depends on 2) The ceiling panel according to claim 2, wherein the panel body is constructed such that a reinforcement layer is piled upon a back face side of a base member of a resin foam system or a fiber system, and the cut portion is formed by penetrating the reinforcement layer. ### Claim 13 (depends on 3) The ceiling panel according to claim 3, wherein the panel body constructed such that a reinforcement layer is piled upon a back side of a base member of a resin foam system or a fiber system, and the cut portion is formed by penetrating the reinforcement layer. ### Claim 14 (depends on 4) The ceiling panel according to claim 4, wherein the panel body is constructed such that a reinforcement layer is piled upon a back face side of a base member of a resin foam system or a fiber system, and the cut portion is formed by penetrating the reinforcement layer. ### Claim 15 (depends on 5) The ceiling panel according to claim 5, wherein the panel body is constructed such that a reinforcement layer is piled upon a back face side of a base member of a resin foam system or a fiber system, and the cut portion is formed by penetrating the reinforcement layer. ### Claim 16 (depends on 6) The ceiling panel according to claim 6, wherein the panel body is constructed such that a reinforcement layer is piled upon a back face side of a base member of resin foam system or a fiber system, and the cut portion is formed by penetrating the reinforcement layer. ### Claim 17 (depends on 5) The ceiling panel according to claim 5, wherein the cut portion is provided at two positions spaced in parallel, the insertion part is inserted into one cut portion and a tip end portion in an insertion direction of the insertion part is exposed on a back face side of the panel body through the other cut portion. ### Claim 18 (depends on 8) The ceiling panel according to claim 8, wherein the cut portion is provided at two positions spaced in parallel, the insertion part is inserted into one cut portion and a tip end portion in an insertion direction of the insertion part is exposed on a back face side of the panel body through the other cut portion. ### Claim 19 (depends on 8) The ceiling panel according to claim 8, wherein the panel body is constructed such that a reinforcement layer is piled upon a back face side of a base member of a resin foam system or a fiber system, and the cut portion is formed by penetrating the reinforcement layer. ### Claim 20 (depends on 17) The ceiling panel according to claim 17, wherein the panel body is constructed such that a reinforcement layer is piled upon a back face side of a base member of a resin foam system or a fiber system, and the cut portion is formed by penetrating the reinforcement layer.