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Atsutoshi Doi

HI Hitachi: 3 patents #10,712 of 28,497Top 40%
Overall (All Time): #1,680,950 of 4,157,543Top 45%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4426700 Semiconductor laser device Motohisa Hirao, Michiharu Nakamura, Shinji Tsuji, Takao Mori 1984-01-17
4366569 Semiconductor laser device including an arrangement for preventing laser degradation caused by excessive current flow Motohisa Hirao, Michiharu Nakamura, Shinji Tsuji, Yutaka Takeda, Takao Mori 1982-12-28
4329658 Semiconductor laser device Kunio Aiki, Naoki Chinone, Satoshi Nakamura, Ryoichi Ito 1982-05-11