Patent US2546604A successfully refreshed from Google Patents.
US5019200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of fabricating multilayer capacitor
Assignee: Murata Manufacturing Co Ltd
•
Filing: 1989-12-15
•
Granted: 1991-05-28
•
Expires: 2009-12-15
Abstract
Abstract A method of fabricating a multilayer capacitor including a series of steps of applying an electrode paste on a ceramic green sheet supported on a supporting film, cutting the ceramic green sheet to a predetermined size by employing a cutting head having drawing means, stripping the cut ceramic green sheet from the supporting film with the ceramic green sheet being held in the cutting head, transferring the ceramic green sheet held in the cutting head to a metallic pressing mold, and laminating a plurality of ceramic green sheets in the metallic mold to obtain a laminated body by repeating the above step of stripping the ceramic green sheet from the supporting film and the above step of transferring the ceramic green sheet to the metallic mold.
Inventors
- 👤 Shoichi Kawabata
- 👤 Toshimi Yoshimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:12
CPC Classifications
B; B28; B28B; B28B11/00; B28B11/12; B28B1/00; B28B11/14; B28B11/16; B28B11/168; B28B13/00; B28B13/02; B28B13/0205; B28B13/04; H; H01; H01G; H01G13/00; H01G4/00; H01G4/30; H01G4/308; B32; B32B; B32B2315/00; B32B2315/02; B32B2457/00; B32B2457/16; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062; Y10T156/1064; Y10T156/1075; Y10T156/1082; Y10T156/1084; Y10T156/1085
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
283 words
A method of fabricating a multilayer capacitor, comprising the steps of: forming a ceramic green sheet which is so thin that it cannot be handled accurately without additional support, and supporting said ceramic green sheet on a supporting film; applying an electrode paste for forming an inner electrode on said ceramic green sheet; cutting said ceramic green sheet supported on said supporting film to a predetermined size by employing a cutting head having drawing means, and drawing and holding the ceramic green sheet into the cutting head, to strip the same from said supporting film; transferring the ceramic green sheet transversely away from said supporting film, while held in said cutting head, to a metallic mold; and laminating a plurality of ceramic green sheets in said metallic mold to obtain a laminated body by repeating said step of stripping the ceramic green sheet of predetermined size from said supporting film and said step of transferring the ceramic green sheet to said metallic mold; wherein said cutting head comprises a main body containing an air cylinder and a cylinder head fixed to a cylinder rod portion of said air cylinder, and so constructed that said cylinder head can be moved by the air cylinder between a position close to the main body and a position separated from the main body; wherein a plurality of section holes connected to the drawing means is formed in said cylinder head; and wherein said cylinder head is driven in a direction that is away from the main body subsequent to the step of transferring the ceramic green sheet held in said cutting head to the metallic mold, thereby causing the ceramic green sheet to enter the metallic mold.
Claim 2
Independent Claim
283 words
A method of fabricating a multilayer capacitor, comprising the steps of: forming a ceramic green sheet which is so thin that it cannot be handled accurately without additional support, and supporting said ceramic green sheet on a supporting film; applying an electrode paste for forming an inner electrode on said ceramic green sheet; cutting said ceramic green sheet supported on said supporting film to a predetermined size by employing a cutting head having drawing means, and drawing and holding the ceramic green sheet into the cutting head, to strip the same from said supporting film; transferring the ceramic green sheet transversely away from said supporting film, while held in said cutting head, to a metallic mold; and laminating a plurality of ceramic green sheets in said metallic mold to obtain a laminated body by repeating said step of stripping the ceramic green sheet of predetermined size from said supporting film and said step of transferring the ceramic green sheet to said metallic mold; wherein said cutting head comprises a main body containing an air cylinder and a cylinder head fixed to a cylinder rod portion of said air cylinder, and so constructed that said cylinder head can be moved by the air cylinder between a position close to the main body and a position separated from the main body; wherein a plurality of section holes connected to the drawing means is formed in said cylinder head; and wherein said cylinder head is driven in a direction that is away from the main body subsequent to the step of transferring the ceramic green sheet held in said cutting head to the metallic mold, thereby causing the ceramic green sheet to enter the metallic mold.
Claim 3
Dependent Claim
31 words
The method according to claim 1, wherein gas is emitted from the plurality of suction holes in the cylinder head, thereby separating the ceramic green sheet held from said cylinder head.
Claim 4
Dependent Claim
62 words
The method according to claim 1, wherein the ceramic green sheet held in said cylinder head is pressed onto the ceramic green sheet in the metallic mold by applying pressure to laminate the ceramic green sheet held in said cylinder head onto the ceramic green sheet in the metallic mold, and then the cylinder head is moved out of the metallic mold.
Claim 5
Dependent Claim
30 words
The method according to claim 3, wherein gas is emitted from the plurality of suction holes in the cylinder head, thereby separating the ceramic green sheet from said cylinder head.
Claim 6
Dependent Claim
45 words
The method according to claim 1, wherein the ceramic green sheet held in said cylinder head is dropped into the metallic mold by releasing suction, to laminate the ceramic green sheet held in said cylinder head onto a ceramic green sheet in the metallic mold.
Claim 7
Dependent Claim
31 words
The method according to claim 5, wherein gas is emitted from the plurality of suction holes in the cylinder head, thereby separating the ceramic green sheet held from said cylinder head.
Claim 8
Independent Claim
22 words
The method according to any one of claims 1-6, wherein said ceramic green sheet is substantially 20 microns or less in thickness.
References Cited (Backward Citations)
US4025382A
Cited
US4181554A
Cited
US4255220A
Cited
US4526635A
Cited
US4587068A
Cited
US4539058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |