SH

Seiji Hijikata

HC Hitachi Construction Machinery Co.: 42 patents #13 of 1,234Top 2%
📍 Tsukuba, JP: #42 of 2,818 inventorsTop 2%
Overall (All Time): #69,492 of 4,157,543Top 2%
43
Patents All Time

Issued Patents All Time

Showing 1–25 of 43 patents

Patent #TitleCo-InventorsDate
12320098 Work machine Yasutaka Tsuruga, Masatoshi Hoshino, Shou Furukawa, Ryou Yagisawa 2025-06-03
12312770 Construction machine Yasutaka Tsuruga, Masatoshi Hoshino, Ryou Yagisawa 2025-05-27
12173475 Work machine Masatoshi Hoshino, Yasutaka Tsuruga 2024-12-24
12054918 Construction machine Yasutaka Tsuruga, Masatoshi Hoshino, Ryou Yagisawa 2024-08-06
12049744 Work machine Yasutaka Tsuruga, Masatoshi Hoshino, Ryou Yagisawa 2024-07-30
12043983 Construction machine Yasutaka Tsuruga, Kenji Hiraku, Masatoshi Hoshino 2024-07-23
12018458 Construction machine Yasutaka Tsuruga, Kenji Hiraku, Masatoshi Hoshino 2024-06-25
11946224 Construction machine Yasutaka Tsuruga, Kenji Hiraku, Masatoshi Hoshino 2024-04-02
11946226 Work machine Masatoshi Hoshino, Yasutaka Tsuruga, Ryou Yagisawa, Shou Furukawa 2024-04-02
11946492 Work machine Masatoshi Hoshino, Yasutaka Tsuruga 2024-04-02
11377822 Hydraulic drive apparatus Kiwamu Takahashi, Kouji Ishikawa, Yasutaka Tsuruga, Masatoshi Hoshino 2022-07-05
11149753 Hydraulic energy recovery apparatus for working machine Kiwamu Takahashi, Masatoshi Hoshino, Yuichi Ogawa, Kouji Ishikawa 2021-10-19
11105070 Hydraulic work machine Masatoshi Hoshino, Kiwamu Takahashi 2021-08-31
10995475 Construction machine Yasutaka Tsuruga, Kouji Ishikawa, Kiwamu Takahashi, Masatoshi Hoshino 2021-05-04
10907666 Hydraulic drive system Yasutaka Tsuruga, Kenji Hiraku, Kouji Ishikawa 2021-02-02
10801532 Work machine Yuichi Ogawa, Masatoshi Hoshino, Kiwamu Takahashi, Kouji Ishikawa 2020-10-13
10794044 Work machine hydraulic control system Yuichi Ogawa, Masatoshi Hoshino 2020-10-06
10787790 Work machine Shinya Imura 2020-09-29
10760246 Work machine Kouji Ishikawa, Shinya Imura 2020-09-01
10584722 Hydraulic fluid energy regeneration apparatus of work machine Kouji Ishikawa, Takatoshi Ooki, Shinya Imura 2020-03-10
10526768 Hydraulic energy regeneration system for work machine Kouji Ishikawa, Shinya Imura 2020-01-07
10526767 Construction machine Kouji Ishikawa, Shinya Imura 2020-01-07
10436229 Hydraulic drive system for work machine Kouji Ishikawa, Shinya Imura 2019-10-08
10364550 Hydraulic drive system of work machine Hiroaki AMANO, Kouji Ishikawa, Shinya Imura, Hidekazu Moriki, Ryohei Yamashita 2019-07-30
10344458 Hydraulic Drive System for work machine Kouji Ishikawa, Shinya Imura 2019-07-09