Granted Patent
Utility
US 6,294,754 · App. 09/429,079
Laser beam machining head
Inventors:
Yasumi Nagura, Michisuke Nayama, Takashi Ishide, Yoshio Hashimoto, Yukio Michishita, Koji Okimura, Tadashi Nagashima, Masao Watanabe, Takashi Akaba, Katsusuke Shimizu
Patented Case
View Patent ↗
Granted: Sep 25, 2001
Filed: Oct 29, 1999
Inventors
Yasumi Nagura
Michisuke Nayama
Takashi Ishide
Yoshio Hashimoto
Yukio Michishita
Koji Okimura
Tadashi Nagashima
Masao Watanabe
Takashi Akaba
Katsusuke Shimizu
Assignee (at issue)
MITSUBISHI ELECTRIC 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.