TO

Takeshi Obana

HI Hitachi: 3 patents #10,712 of 28,497Top 40%
Overall (All Time): #1,609,822 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6555779 Underwater processing device and underwater processing method Kunio Miyazaki, Hisanori Okamura, Takeshi Tsukamoto, Takahiko Kato, Masato Koshiishi 2003-04-29
6328530 MG alloy member and its use Tomoya Kato, Mitsuyoshi Shouji, Kazumi Fujii, Kenya Ohashi 2001-12-11
6146094 Motor-driven blower and method of manufacturing impeller for motor-driven blower Kiyomi Nakamura, Masahisa Inagaki, Yasuhisa Aono, Hisanori Okamura, Hisao Suka +1 more 2000-11-14