KH

Keiji Hasumi

HI Hitachi: 3 patents #10,712 of 28,497Top 40%
HC Hitachi Tokyo Electronics Co.: 3 patents #7 of 101Top 7%
📍 Iruma, JP: #118 of 400 inventorsTop 30%
Overall (All Time): #1,645,845 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5482524 Atmospheric pressure, elevated temperature gas desorption apparatus Kazuo Nakano, Kazuaki Mizokami, Katsuhiko Itoh, Michimasa Funabashi, Yasuhiro Mitsui +3 more 1996-01-09
5304797 Gas analyzer for determining impurity concentration of highly-purified gas Takashi Irie, Yasuhiro Mitsui 1994-04-19
4996422 Mass spectrometer Yasuhiro Mitsui, Shinichiro Watase, Katsumi Kuriyama, Kazuo Nakano 1991-02-26