Title:
【発明の名称】位相型拡散板
Document Type and Number:
Japanese Patent JP2586139
Kind Code:
B2
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Inventors:
KITAGISHI NOZOMI
Application Number:
JP16790189A
Publication Date:
February 26, 1997
Filing Date:
June 28, 1989
Export Citation:
Assignee:
CANON KK
International Classes:
G03B13/24; G02B5/02; (IPC1-7): G03B13/24; G02B5/02
Domestic Patent References:
| JP5741621A |
Attorney, Agent or Firm:
Takanashi Yukio