Granted Patent
Utility
US 6,243,163 · App. 09/398,191
Wavelength detector
Inventors:
Osamu Wakabayashi, Tatsuo Enami, Shinji Nagai, Toru Suzuki, Takeshi Ohta, Hirokazu Kubo
Patented Case
View Patent ↗
Granted: Jun 5, 2001
Filed: Sep 17, 1999
Inventors
Osamu Wakabayashi
Tatsuo Enami
Shinji Nagai
Toru Suzuki
Takeshi Ohta
Hirokazu Kubo
Assignee (at issue)
KOMATSU 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.