Granted Patent
Utility
US 4,801,862 · App. 07/017,549
Method for measuring complex dielectric constant or complex magnetic constant of materials in three-dimensional directions
Inventors:
Shigeyoshi Osaki, Kiyokazu Sakai, Kimiyoshi Uranishi
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Feb 24, 1987
Inventors
Shigeyoshi Osaki
Kiyokazu Sakai
Kimiyoshi Uranishi
Assignee (at issue)
Kanzaki Paper Manufacturing Co., Ltd.
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.