Seal carving apparatus and seal carving method |
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| 申请号 | US14885178 | 申请日 | 2015-10-16 | 公开(公告)号 | US09878491B2 | 公开(公告)日 | 2018-01-30 |
| 申请人 | SHACHIHATA INC.; | 发明人 | Eiji Abe; Masayoshi Uchida; | ||||
| 摘要 | A seal carving apparatus includes a thermal head having a plurality of heat generating elements disposed in lines, and thermal drive control means that performs a control process of selectively and thermally driving the individual heat generating elements while moving the thermal head and a porous material in relative to each other with the thermal head being in abutment with the porous material, thereby forming a seal face on the porous material. The thermal drive control means controls a pulse time width for thermally driving the individual heat generating elements of the thermal head under pulse width modulation control based on gradation image data having a gradation value, thereby forming a seal with a gradation on the porous material. | ||||||
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| 说明书全文 | |||||||
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