YT

Yasutaka Tsuruga

HC Hitachi Construction Machinery Co.: 55 patents #7 of 1,234Top 1%
HC Hitachi Construction Machinery Tierra Co.: 7 patents #9 of 55Top 20%
📍 Ryugasaki, JP: #3 of 114 inventorsTop 3%
Overall (All Time): #35,397 of 4,157,543Top 1%
63
Patents All Time

Issued Patents All Time

Showing 51–63 of 63 patents

Patent #TitleCo-InventorsDate
8857169 Hydraulic drive system for construction machine Kiwamu Takahashi, Yoshifumi Takebayashi, Kazushige Mori 2014-10-14
8413676 Construction machine Yuuki Umizaki, Teruo Irino, Makoto Motozu 2013-04-09
7798738 Swivel joint for construction machine Junya Kawamoto, Kazuyoshi Yamada, Kenji Itou 2010-09-21
6915980 Winding and cutting machine for rolled paper 2005-07-12
6772590 Hydraulic driving device Takashi Kanai, Junya Kawamoto 2004-08-10
6651428 Hydraulic drive device Kiwamu Takahashi, Takashi Kanai, Kenichiro Nakatani, Junya Kawamoto 2003-11-25
6584770 Hydraulic drive system Takashi Kanai, Junya Kawamoto, Satoshi Hamamoto, Yasuharu Okazaki, Yukiaki Nagao 2003-07-01
6526747 Hydraulic driving device Kenichiro Nakatani, Takashi Kanai, Junya Kawamoto, Satoshi Hamamoto, Yasuharu Okazaki +1 more 2003-03-04
6408622 Hydraulic drive device Takashi Kanai, Junya Kawamoto, Satoshi Hamamoto, Yasuharu Okazaki, Yukiaki Nagao 2002-06-25
6397591 Hydraulic driving unit Takashi Kanai, Junya Kawamoto, Kenichiro Nakatani, Kiwamu Takahashi, Satoshi Hamamoto +2 more 2002-06-04
6192681 Hydraulic drive apparatus Takashi Kanai, Junya Kawamoto 2001-02-27
6176126 Engine speed control system for construction machine Kenichiro Nakatani, Junya Kawamoto, Takashi Kanai 2001-01-23
6105367 Hydraulic drive system Takashi Kanai, Junya Kawamoto 2000-08-22