AN

Akihiro Narazaki

HC Hitachi Construction Machinery Co.: 28 patents #28 of 1,234Top 3%
📍 Tsukuba, JP: #92 of 2,818 inventorsTop 4%
Overall (All Time): #133,864 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
12428812 Work machine Shinji Nishikawa, Hiroaki Tanaka, Masatoshi Morikawa 2025-09-30
12416131 Work machine Yusuke Suzuki, Hiroaki Tanaka, Yasuhiko Kanari, Hiroshi Sakamoto, Teruki IGARASHI 2025-09-16
12371873 Work machine Kento KUMAGAI, Shinya Imura, Yasutaka Tsuruga, Takaaki CHIBA, Hiroaki AMANO +3 more 2025-07-29
12325978 Work machine Kento KUMAGAI, Shinya Imura, Yasutaka Tsuruga, Takaaki CHIBA, Shinjirou Yamamoto +2 more 2025-06-10
12297624 Work machine Kento KUMAGAI, Shinya Imura, Yasutaka Tsuruga, Takaaki CHIBA, Shinjirou Yamamoto +2 more 2025-05-13
12286768 Work machine Hiroaki Tanaka, Yusuke Suzuki, Yasuhiko Kanari, Hiroshi Sakamoto 2025-04-29
12227920 Construction machine Ryota KAMEOKA, Shinji Nishikawa 2025-02-18
12221763 Hydraulic excavator Teruki IGARASHI, Masamichi Itou 2025-02-11
12134875 Work machine Tarou AKITA, Takahiro Kobayashi, Masamichi Ito 2024-11-05
12123438 Work machine Hisami NAKANO, Hiroaki Tanaka, Yusuke Suzuki 2024-10-22
12104360 Construction machine Ryota KAMEOKA, Shinji Nishikawa 2024-10-01
12037772 Remote control system for work machine Teruki IGARASHI, Kento KUMAGAI 2024-07-16
12012716 Work machine Yusuke Suzuki, Hiroaki Tanaka, Hisami NAKANO, Hiroshi Sakamoto 2024-06-18
12000416 Work machine Kento KUMAGAI, Shinya Imura, Yasutaka Tsuruga, Takaaki CHIBA, Hiroaki AMANO +1 more 2024-06-04
11965315 Work machine Kento KUMAGAI, Shinya Imura, Yasutaka Tsuruga, Takaaki CHIBA, Hiroaki AMANO +3 more 2024-04-23
11885108 Work machine and periphery monitoring system Keiichirou Anahara, Naoki Hagiwara, Kazuhiko Mizoguchi, Shinji Nishikawa 2024-01-30
11781285 Construction machine Hiroaki AMANO, Kento KUMAGAI, Shinji Nishikawa 2023-10-10
11739502 Work machine Kento KUMAGAI, Shinya Imura, Yasutaka Tsuruga, Takaaki CHIBA, Hiroaki AMANO +3 more 2023-08-29
11718977 Work machine Kento KUMAGAI, Shinya Imura, Yasutaka Tsuruga, Takaaki CHIBA, Hiroaki AMANO +2 more 2023-08-08
11274419 Working machine Shu Shirato, Yoshihiro Shirakawa, Katsuaki Kodaka 2022-03-15
11001985 Work machine Masamichi Ito, Hisami NAKANO, Yusuke Suzuki, Teruki IGARASHI 2021-05-11
10677268 Construction machine Daiki Itou, Katsuaki Kodaka 2020-06-09
10662618 Construction machine Tomoaki Kaneta, Katsuaki Kodaka 2020-05-26
8726664 Engine lug-down suppressing device for hydraulic work machinery Nobuei Ariga 2014-05-20
8560185 Control unit for construction machine Hideo Karasawa, Tsuyoshi Nakamura 2013-10-15