Title:
【発明の名称】電子管用陰極の製造方法
Document Type and Number:
Japanese Patent JP2753295
Kind Code:
B2
Inventors:
SUZUKI YUKIO
YAMAUCHI TOSHASU
TAGUCHI SADANORI
YAMAUCHI TOSHASU
TAGUCHI SADANORI
Application Number:
JP32583088A
Publication Date:
May 18, 1998
Filing Date:
December 26, 1988
Export Citation:
Assignee:
HITACHI SEISAKUSHO KK
International Classes:
H01J9/08; H01J9/04; (IPC1-7): H01J9/08
Domestic Patent References:
| JP5414150A | ||||
| JP6294543U |
Attorney, Agent or Firm:
Katsuo Ogawa (1 person outside)