Title:
Optical accessories for lenses, and lens devices and imaging devices that have them.
Document Type and Number:
Japanese Patent JP6289032
Kind Code:
B2
Inventors:
Akira Yokoyama
Application Number:
JP2013224846A
Publication Date:
March 07, 2018
Filing Date:
October 30, 2013
Export Citation:
Assignee:
Canon Inc
International Classes:
G03B11/04; G03B17/56
Domestic Patent References:
| JP6301080A | ||||
| JP2007298671A | ||||
| JP59106128U | ||||
| JP2005018005A | ||||
| JP2002214679A |
Attorney, Agent or Firm:
Okabe
Shinichi Usui
Takao Ochi
Seiichiro Takahashi
Koji Yoshizawa
Masami Saito
Shinichi Usui
Takao Ochi
Seiichiro Takahashi
Koji Yoshizawa
Masami Saito