Inventor · Nirasaki, JP

Shinji Eda

26Patents
7h-index
25Co-inventors
69Inventor score

Filing activity: Mar 31, 1988 → Apr 1, 2023

Most-cited inventions

PatentTitleAreaCited byStatus
US4945432A Magnetic disk drive with brittle disks Physics 51 Expired
US8783063B2 Glass substrate for magnetic disk and manufacturing method of the same Physics 51 Active
US6119483A Process for producing glass substrate for information recording medium Physics 38 Expired
US6134918A Method of fabricating glass substrate for magnetic disk and method of fabricating magnetic disk Physics 25 Expired
US6534120B1 Chemically reinforced glass manufacture method, information recording medium glass substrate manufacture method, information recording medium manufacture method, and chemical reinforcement device Chemistry; Metallurgy 16 Expired
US6430965B1 Process for producing glass substrate for information recording medium and process for producing recording medium using said glass substrate Physics 12 Expired
US6427489B1 Process for producing glass substrate for information recording medium and process for producing recording medium using said glass substrate Physics 12 Expired
US8785010B2 Glass substrate for a magnetic disk and magnetic disk Physics 7 Active
US7703303B2 Magnetic disk glass substrate manufacturing method Chemistry; Metallurgy 7 Active
US10783921B2 Glass spacer and hard disk drive apparatus Physics 5 Active
US8119267B2 Glass substrate for magnetic disk and manufacturing method of the same Physics 5 Active
US9085486B2 Glass substrate for a magnetic disk and magnetic disk Physics 5 Active
US8733129B2 Glass substrate for magnetic disk and manufacturing method thereof Chemistry; Metallurgy 5 Active
US8806893B2 Manufacturing method of a glass blank for magnetic disk and manufacturing method of a glass substrate for magnetic disk Chemistry; Metallurgy 4 Active
US8806895B2 Manufacturing method for a glass substrate for magnetic disk Chemistry; Metallurgy 3 Active
US9085479B2 Glass substrate for magnetic disk and manufacturing method thereof Chemistry; Metallurgy 2 Active
US8973404B2 Manufacturing method of glass substrate for magnetic disk, manufacturing method of glass blank, glass substrate for magnetic disk, and glass blank Chemistry; Metallurgy 2 Active
US11640833B2 Substrate for magnetic disk and magnetic disk Physics 1 Active
US8869559B2 Method of manufacturing a glass substrate for magnetic disk Chemistry; Metallurgy 1 Active
US11031038B2 Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer Physics 1 Active
US11244706B2 Glass spacer and hard disk drive apparatus Physics 1 Active
US12020735B2 Substrate for magnetic disk and magnetic disk Physics 0 Active
US9003834B2 Glass substrate for magnetic disk and manufacturing method thereof Emerging Cross-Sectional Technologies 0 Active
US8640497B2 Method of manufacturing glass substrate for magnetic disk and system for manufacturing glass substrate for magnetic disk Physics 0 Active
US11682425B2 Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer Physics 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.