Granted Patent
Utility
US 4,238,706 · App. 05/966,621
Soft x-ray source and method for manufacturing the same
Inventors:
Hideo Yoshihara, Mikiho Kiuchi, Satoshi Nakayama, Toa Hayasaka, Junji Matsui
Patented Case
View Patent ↗
Granted: Dec 9, 1980
Filed: Dec 5, 1978
Inventors
Hideo Yoshihara
Mikiho Kiuchi
Satoshi Nakayama
Toa Hayasaka
Junji Matsui
Assignee (at issue)
NIPPON ELECTRIC 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.