Title:
【発明の名称】光導波路型光周波数変換器
Document Type and Number:
Japanese Patent JP2991261
Kind Code:
B2
Inventors:
OGUMA MANABU
SHIMIZU MAKOTO
SHIMIZU MAKOTO
Application Number:
JP740392A
Publication Date:
December 20, 1999
Filing Date:
January 20, 1992
Export Citation:
Assignee:
NIPPON DENSHIN DENWA KK
International Classes:
G02F1/11; G02F2/02; G02F1/125; (IPC1-7): G02F2/02
Domestic Patent References:
| JP2153329A |
Attorney, Agent or Firm:
Mitsuishi Toshiro