Title:
【発明の名称】デュアルグレーティングの作成方法
Document Type and Number:
Japanese Patent JP2790648
Kind Code:
B2
Inventors:
SUMI TAKESHI
Application Number:
JP9416789A
Publication Date:
August 27, 1998
Filing Date:
April 13, 1989
Export Citation:
Assignee:
RIKOO KK
International Classes:
B29D17/00; G02B5/18; G11B7/135; G11B7/26; (IPC1-7): G11B7/135; B29D17/00; G02B5/18; G11B7/26
Domestic Patent References:
| JP62238502A | ||||
| JP63247941A | ||||
| JP60185904A | ||||
| JP63201603A |
Attorney, Agent or Firm:
Akira Kashiwagi