Title:
光学部材の研磨用工具とこれに用いられるピッチセグメント、及びそのピッチセグメントの成形型
Document Type and Number:
Japanese Patent JP4057176
Kind Code:
B2
Inventors:
Hiroshi Kurosawa
Application Number:
JP35573298A
Publication Date:
March 05, 2008
Filing Date:
December 15, 1998
Export Citation:
Assignee:
Topcon Co., Ltd.
International Classes:
B24B37/12; B24B37/16; B24D18/00
Domestic Patent References:
| JP5057590A | ||||
| JP8197434A | ||||
| JP60217062A |
Foreign References:
| WO1998050201A1 |
Attorney, Agent or Firm:
Tamio Nishiwaki