TO

Tsukuru Ohtoshi

HI Hitachi: 2 patents #336 of 2,935Top 15%
📍 Kokubunji, JP: #17 of 106 inventorsTop 20%
Overall (1989): #13,765 of 140,708Top 10%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4881235 Semiconductor laser having a multiple quantum well structure doped with impurities Naoki Chinone, Kazuhisa Uomi, Tadashi Fukuzawa, Hideaki Matsueda, Takashi Kajimura 1989-11-14
4835578 Semiconductor device having a quantum wire and a method of producing the same Kazuhisa Uomi, Tadashi Fukuzawa, Naoki Chinone 1989-05-30