Fishing – trapping – and vermin destroying
Patent
1988-02-12
1989-08-08
Hearn, Brian E.
Fishing, trapping, and vermin destroying
148DIG72, 148DIG94, 148DIG169, 156644, 372 49, 372103, 427 531, 437133, 437173, 437935, 437936, 437962, 437984, H01L 2120, H01L 21203
Patent
active
048552569
ABSTRACT:
A masking layer is formed on the light-emitting mirror surface of a semiconductor laser body. The masking layer is capable of blocking light emitted from the semiconductor laser body and of being thermally melted and evaporated by exposure to the emitted light. When the masking layer is formed on the light-emitting mirror surface of the semiconductor laser body, a small light-emitting hole is defined in the masking layer by the heat of the emitted light which is effective to prevent the material of the masking layer from being evaporated on a portion of the light-emitting surface.
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Akedo Jun
Harigaya Makoko
Ide Yasushi
Kobayashi Hiroshi
Machida Haruhiko
Bunch William
Hearn Brian E.
Kobayashi Hiroshi
Machida Haruhiko
Ricoh & Company, Ltd.
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