Title:
【発明の名称】精密プレス用光学ガラス
Document Type and Number:
Japanese Patent JP3015079
Kind Code:
B2
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Inventors:
Nobuyoshi Baba
Sawanobori adult
Shinobu Nagahama
Sawanobori adult
Shinobu Nagahama
Application Number:
JP20543190A
Publication Date:
February 28, 2000
Filing Date:
August 02, 1990
Export Citation:
Assignee:
Sumita Optical Glass Co., Ltd.
International Classes:
C03C3/15; C03C3/068; C03C3/253; (IPC1-7): C03C3/15; C03C3/068; C03C3/253
Domestic Patent References:
| JP1286934A | ||||
| JP62123040A | ||||
| JP543115A |
Attorney, Agent or Firm:
Akira Uchida (2 outside)