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Yasuhiko Tsuburai
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Sagamihara, JP
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Patents Grants
last 30 patents
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Patent Grant
Method of manufacturing a semiconductor laser device
Patent number
4,987,097
Issue date
Jan 22, 1991
Kabushiki Kaisha Toshiba
Koichi Nitta
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Semiconductor laser device and the manufacturing method thereof
Patent number
4,922,499
Issue date
May 1, 1990
Kabushiki Kaisha Toshiba
Koichi Nitta
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Method of manufacturing a semiconductor laser with autodoping control
Patent number
4,855,250
Issue date
Aug 8, 1989
Kabushiki Kaisha Toshiba
Motoyuki Yamamoto
H01 - BASIC ELECTRIC ELEMENTS