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Yoshihiro Nagaoka

HH Hitachi High-Technologies: 17 patents #180 of 1,917Top 10%
HI Hitachi: 16 patents #2,438 of 28,497Top 9%
HC Hitachi Techno Engineering Co.: 2 patents #11 of 111Top 10%
Overall (All Time): #106,859 of 4,157,543Top 3%
33
Patents All Time

Issued Patents All Time

Showing 26–33 of 33 patents

Patent #TitleCo-InventorsDate
6312222 Centrifugal fluid machine Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more 2001-11-06
6290460 Centrifugal fluid machine Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more 2001-09-18
6197255 Chemical analyzing apparatus Ryo Miyake, Akira Koide, Naruo Watanabe, Yasuhiko Sasaki, Hajime Kato +5 more 2001-03-06
6162015 Centrifugal type fluid machine Yuuji Nagai, Yoshiharu Ueyama, Setsuo Yazawa, Sadashi Tanaka 2000-12-19
6139266 Centrifugal fluid machine Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more 2000-10-31
5971705 Centrifugal fluid machine Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more 1999-10-26
5857834 Centrifugal fluid machine Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more 1999-01-12
5595473 Centrifugal fluid machine Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki +2 more 1997-01-21