Title:
【発明の名称】黒化処理方法および黒化処理炉
Document Type and Number:
Japanese Patent JP2611801
Kind Code:
B2
Inventors:
Yoshio Kato
Uehara Takashi
Uehara Takashi
Application Number:
JP8441788A
Publication Date:
May 21, 1997
Filing Date:
April 06, 1988
Export Citation:
Assignee:
Daido Plant Industries, Ltd.
International Classes:
C23C8/18; C21D9/56; (IPC1-7): C23C8/18; C21D9/56
Domestic Patent References:
| JP6092462A | ||||
| JP57149432A | ||||
| JP61191460U |
Attorney, Agent or Firm:
Masao Inui