Production method of mold, manufacturing method of pattern sheet, production method of electroform, production method of mold using electroform, and original
US10648095B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2017 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Feb 15, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/756
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Provided are a production method of a mold, a manufacturing method of a pattern sheet, a production method of an electroform, a production method of a mold using an electroform, and an original. The production method includes: preparing an original having an inclined portion which is formed in an enclosed shape on an outer peripheral portion of a protruding pattern formed at a center portion on a base and gradually increases in thickness from inside toward outside, and a thermoplastic resin sheet; and forming a recessed pattern on the thermoplastic resin sheet by pressing the original which is heated against the thermoplastic resin sheet at a position where a flat surface of the original and a surface of the thermoplastic resin sheet are separated from each other, cooling the original in the state where the original is pressed, and separating the original from the thermoplastic resin sheet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.