MS

Masaaki Sawai

HI Hitachi: 6 patents #6,582 of 28,497Top 25%
Overall (All Time): #892,114 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
RE34378 Light emitting device with improved electrode structure to minimize short circuiting Masamichi Kobayashi, Shoji Hayashi, Hiroshi Naka, Masahiro Ichiki 1993-09-14
4849982 Semiconductor laser chip having a layer structure to reduce the probability of an ungrown region 1989-07-18
4785455 Light emitting device with improved electrode structure to minimize short circuiting Masamichi Kobayashi, Shoji Hayashi, Hiroshi Naka, Masahiro Ichiki 1988-11-15
4731790 Semiconductor laser chip having a layer structure to reduce the probability of an ungrown region 1988-03-15
4692927 Light emitting device with improved electrode structure to minimize short circuiting Masamichi Kobayashi, Shoji Hayashi, Hiroshi Naka, Masahiro Ichiki 1987-09-08
4604753 Semiconductor laser module having an improved temperature control arrangement 1986-08-05