238000005755 formation reaction Methods 0.000 description 7.230000015572 biosynthetic process Effects 0.000 description 7.239000011241 protective layer Substances 0.000 description 8.229910052721 tungsten Inorganic materials 0.000 claims description 6.229910052719 titanium Inorganic materials 0.000 claims description 6.229910052715 tantalum Inorganic materials 0.000 claims description 6.229910052750 molybdenum Inorganic materials 0.000 claims description 6.229910052804 chromium Inorganic materials 0.000 claims description 6.239000007769 metal material Substances 0.000 claims description 14.
238000010438 heat treatment Methods 0.000 claims abstract description 185.238000004519 manufacturing process Methods 0.000 title claims description 15.Assignors: NAKATANI, TOSHIFUMI, TERAO, HIROTOSHI, USAMI, SHUUICHI Publication of US20050146594A1 publication Critical patent/US20050146594A1/en Application granted granted Critical Publication of US7170539B2 publication Critical patent/US7170539B2/en Status Expired - Fee Related legal-status Critical Current Adjusted expiration legal-status Critical Links ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to JP2004-002265 priority Critical Priority to JP2004002265A priority patent/JP2005193535A/en Application filed by Alps Electric Co Ltd filed Critical Alps Electric Co Ltd Assigned to ALPS ELECTRIC CO., LTD. Original Assignee Alps Electric Co Ltd Priority date (The priority date is an assumption and is not a legal conclusion.
Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ( en Inventor Toshifumi Nakatani Shuuichi Usami Hirotoshi Terao Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US11/031,299 Other versions US7170539B2
Google Patents Thermal head, method for manufacturing the same, and method for adjusting dot aspect ratio of thermal headÄownload PDF Info Publication number US20050146594A1 US20050146594A1 US11/031,299 US3129905A US2005146594A1 US 20050146594 A1 US20050146594 A1 US 20050146594A1 US 3129905 A US3129905 A US 3129905A US 2005146594 A1 US2005146594 A1 US 2005146594A1 Authority US United States Prior art keywords heating element insulating barrier layer barrier layer heat transfer Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US20050146594A1 - Thermal head, method for manufacturing the same, and method for adjusting dot aspect ratio of thermal head US20050146594A1 - Thermal head, method for manufacturing the same, and method for adjusting dot aspect ratio of thermal head