Issued Patents All Time
Showing 1–25 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416135 | Electrically driven hydraulic work machine | Seiichi Kihara, Yuichi Ogawa, Takeshi Ishii | 2025-09-16 |
| 12241224 | Power-operated construction machine | Yuta Furukawa, Seiichi Kihara | 2025-03-04 |
| 12018456 | Construction machine | Yuichi Ogawa, Takeshi Ishii, Seiichi Kihara | 2024-06-25 |
| 11993918 | Electric construction machine | Yuuta Furukawa, Hiroyuki Andou, Seiichi Kihara | 2024-05-28 |
| 11939745 | Electrically driven construction machine | Takeshi Ishii, Taihei Maehara, Tatsuo Takishita | 2024-03-26 |
| 11753800 | Hydraulic drive system for construction machine | Taihei Maehara, Takeshi Ishii, Yuichi Ogawa | 2023-09-12 |
| 11668074 | Electrically driven hydraulic construction machine | Yuichi Ogawa, Takeshi Ishii, Seiichi Kihara | 2023-06-06 |
| 11542680 | Electric construction machine | Seiichi Kihara, Takeshi Ishii | 2023-01-03 |
| 11499288 | Hydraulic excavator | Taihei Maehara, Takeshi Ishii | 2022-11-15 |
| 11454002 | Hydraulic drive system for work machine | Taihei Maehara, Takeshi Ishii | 2022-09-27 |
| 11377822 | Hydraulic drive apparatus | Kouji Ishikawa, Yasutaka Tsuruga, Masatoshi Hoshino, Seiji Hijikata | 2022-07-05 |
| 11214940 | Hydraulic drive system for construction machine | Taihei Maehara, Takeshi Ishii | 2022-01-04 |
| 11149753 | Hydraulic energy recovery apparatus for working machine | Seiji Hijikata, Masatoshi Hoshino, Yuichi Ogawa, Kouji Ishikawa | 2021-10-19 |
| 11111650 | Hydraulic drive system for construction machine | Taihei Maehara, Takeshi Ishii, Yoshifumi Takebayashi, Natsuki Nakamura, Daisuke Oka | 2021-09-07 |
| 11105070 | Hydraulic work machine | Masatoshi Hoshino, Seiji Hijikata | 2021-08-31 |
| 10995474 | Construction machine | Taihei Maehara, Takeshi Ishii | 2021-05-04 |
| 10995475 | Construction machine | Seiji Hijikata, Yasutaka Tsuruga, Kouji Ishikawa, Masatoshi Hoshino | 2021-05-04 |
| 10947702 | Hydraulic drive system for electrically driven hydraulic work machine | Takeshi Ishii, Taihei Maehara | 2021-03-16 |
| 10801532 | Work machine | Yuichi Ogawa, Seiji Hijikata, Masatoshi Hoshino, Kouji Ishikawa | 2020-10-13 |
| 10697150 | Hydraulic drive system for electrically-driven hydraulic work machine | Tatsuo Takishita, Masayuki Yunoue, Kenichirou Nakatani, Taihei Maehara | 2020-06-30 |
| 10676898 | Hydraulic drive system of work machine | Taihei Maehara, Kazushige Mori, Yoshifumi Takebayashi, Natsuki Nakamura | 2020-06-09 |
| 10655647 | Hydraulic drive system for construction machine | Yoshifumi Takebayashi, Kazushige Mori, Natsuki Nakamura | 2020-05-19 |
| 10329739 | Construction machine | Masatoshi Hoshino, Yasutaka Tsuruga, Seiji Hijikata | 2019-06-25 |
| 10287751 | Hydraulic drive system for working machine including track device of crawler type | Kazushige Mori, Yasutaka Tsuruga, Yoshifumi Takebayashi | 2019-05-14 |
| 10280592 | Hydraulic drive system for electrically-operated hydraulic work machine | Shingo Kishimoto, Yoshifumi Takebayashi, Kazushige Mori, Natsuki Nakamura | 2019-05-07 |