Patent Assignment
Reel/Frame 027280/0137
Assignment of Assignor's Interest
Recorded: 2011-11-24
Pages: 3
Assignor
TAKAYAMA, HIDEMI
Executed: 2011-08-04
Assignee
CANON KABUSHIKI KAISHA
30-2, SHIMOMARUKO 3-CHOME, OHTA-KU, TOKYO, 146-8501, JAPAN
Covered Property
(1)
Diffractive Optical Element Having High Diffraction Efficiency at Plural Wavelengths and Image-Pickup Optical System Using the Same