HK

Hiromi Kumagai

TL Tokyo Electron Limited: 7 patents #1,084 of 5,567Top 20%
KT Kabushiki Kaisha Toshiba: 3 patents #8,011 of 21,451Top 40%
Applied Materials: 1 patents #4,780 of 7,310Top 70%
Overall (All Time): #588,795 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
6247889 Multiple-shaft power transmission apparatus and wafer transport arm link Hiroko Kono 2001-06-19
5916455 Method and apparatus for generating a low pressure plasma 1999-06-29
5888338 Magnetron plasma processing apparatus and processing method Hiromi Harada, Sinji Kubota, Junichi Arami, Keiji Horioka, Isahiro Hasegawa +3 more 1999-03-30
5660671 Magnetron plasma processing apparatus and processing method Hiromi Harada, Sinji Kubota, Junichi Arami, Keiji Horioka, Isahiro Hasegawa +3 more 1997-08-26
5439547 Semiconductor manufacturing apparatus with a spare vacuum chamber 1995-08-08
5376211 Magnetron plasma processing apparatus and processing method Hiromi Harada, Sinji Kubota, Junichi Arami, Keiji Horioka, Isahiro Hasegawa +3 more 1994-12-27
5332442 Surface processing apparatus Masao Kubodera, Masaki Narushima, Masahito Ozawa, Tomihiro Yonenaga, Sumi Tanaka 1994-07-26
4954685 Heating furnace for semiconductor wafers Kaoru Sato, Yoshio Imai 1990-09-04
4733632 Wafer feeding apparatus Tadahiro Ohmi, Yoshiaki Yanagi 1988-03-29