RU

Riichi Uchida

HI Hitachi: 10 patents #4,206 of 28,497Top 15%
Overall (All Time): #510,358 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9573437 Vehicular air conditioning system Tadashi Osaka, Hiroaki Matsushima, Sachio Sekiya, Yuki Akiyama 2017-02-21
9481226 Vehicular air-conditioning system including a temperature-dependent control cycle Tadashi Osaka, Hiroaki Matsushima, Sachio Sekiya, Yuki Akiyama 2016-11-01
4993930 Vacuum pump apparatus and shaft sealing device therefor Kotaro Naya 1991-02-19
4984974 Screw type vacuum pump with introduced inert gas Koutarou Naya, Kazuaki Shiinoki, Tadashi Hayakawa, Kiyoshi Masujima, Katsumi Matsubara 1991-01-15
4963079 Screw fluid machine with high efficiency bore shape Mitsuru Fujiwara, Akira Suzuki 1990-10-16
4770609 Two-stage vacuum pump apparatus and method of operating the same Seiji Tsuru, Kazuaki Shiinoki, Kotaro Naya 1988-09-13
4767284 Screw vacuum pump unit Kazuaki Shiinoki, Koutarou Naya, Shinji Mitsuhashi, Tadashi Hayakawa 1988-08-30
4714418 Screw type vacuum pump Katsumi Matsubara, Masatoshi Muramatsu, Kotaro Naya, Tsuneharu Takagi 1987-12-22
4664601 Operation control system of rotary displacement type vacuum pump Katsumi Matsubara, Seiji Tsuru 1987-05-12
4487563 Oil-free rotary displacement compressor Hidetomo Mori, Akira Suzuki, Shigeru Sasaki 1984-12-11