IP Library Granted Patent US 5,964,944
Granted Patent Utility
US 5,964,944 · App. 08/820,888

Method of producing silicon carbide single crystal

Inventors: Naohiro Sugiyama, Atsuto Okamoto, Toshihiko Tani, Nobuo Kamiya
Patented Case View Patent ↗
Granted: Oct 12, 1999 Filed: Mar 21, 1997
Inventors
Naohiro Sugiyama
Atsuto Okamoto
Toshihiko Tani
Nobuo Kamiya
Assignee (at issue)
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 5,964,944
App. No.
08/820,888
Filed
1997-03-21
Granted
1999-10-12
Kind
A