Granted Patent
Utility
US 4,559,102 · App. 06/493,025
Method for recrystallizing a polycrystalline, amorphous or small grain material
Inventor:
Yoshinori Hayafuji
Patented Case
View Patent ↗
Granted: Dec 17, 1985
Filed: May 9, 1983
Inventor
Yoshinori Hayafuji
Assignee (at issue)
SONY GROUP CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.