Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE50366 | Hydraulic system for work machine, and work machine | Yuji Fukuda, Keisuke Miura, Ryosuke Kinugawa, Ikuhiro Uotani, Satoshi Tajima +2 more | 2025-04-08 |
| 12006659 | Hydraulic system for work machine | Yuji Fukuda | 2024-06-11 |
| 11840825 | Hydraulic system for working machine | Yuji Fukuda, Toshihiko Takemura | 2023-12-12 |
| 11644098 | Hydraulic system of work machine and work machine | Yuji Fukuda, Ryohei Sumiyoshi | 2023-05-09 |
| 11353047 | Hydraulic system for work machine and work machine | Yuji Fukuda, Hiroaki Nakagawa | 2022-06-07 |
| 10900562 | Hydraulic system of work machine and work machine | Yuji Fukuda, Ryohei Sumiyoshi | 2021-01-26 |
| 10648489 | Hydraulic system for work machine and work machine | Yuji Fukuda, Hiroaki Nakagawa | 2020-05-12 |
| 10641388 | Hydraulic system of work machine and work machine | Yuji Fukuda, Ryohei Sumiyoshi | 2020-05-05 |
| 10618527 | Hydraulic system for work machine | Yuji Fukuda, Ryosuke Kinugawa | 2020-04-14 |
| 10451094 | Hydraulic system of work machine | Yuji Fukuda, Ryohei Sumiyoshi | 2019-10-22 |
| 10352335 | Hydraulic system of work machine | Yuji Fukuda, Ryohei Sumiyoshi, Keigo Honda | 2019-07-16 |
| 10316496 | Hydraulic system for work machine, and work machine | Yuji Fukuda, Keisuke Miura, Ryosuke Kinugawa, Ikuhiro Uotani, Satoshi Tajima +2 more | 2019-06-11 |
| 10316493 | Hydraulic system and working machine including the same | Yuji Fukuda, Hiroaki Nakagawa, Keisuke Miura, Ryosuke Kinugawa | 2019-06-11 |
| 10280906 | Hydraulic system for work machine | Yuji Fukuda, Ryohei Sumiyoshi | 2019-05-07 |
| 10006188 | Work machine | Yuji Fukuda, Hiroaki Nakagawa, Ryosuke Kinugawa | 2018-06-26 |
| 9902384 | Hydraulic system and work machine | Yuji Fukuda | 2018-02-27 |
| 9316310 | Working machine | Ryosuke Kinugawa, Keisuke Miura, Isao Tanaka, Yuji Fukuda | 2016-04-19 |
| 8495870 | Work machine | Ryohei Sumiyoshi, Kunihiro Suzuki | 2013-07-30 |
| 7069674 | Hydraulic circuit for backhoe | — | 2006-07-04 |
| 5235811 | Control change system for a hydraulic work vehicle | Shiro Watanabe, Kazuhiko Tsuji, Kiyoshi Matsui | 1993-08-17 |
| 5136846 | Hydraulic circuit with a switchover valve for switching between a high and a low-pressure relief | Masaru Kumatani | 1992-08-11 |
| 5125232 | Control change system for a hydraulic working vehicle | Shiro Watanabe, Kazuhiko Tsuji | 1992-06-30 |
| 5046312 | Swivel speed control circuit for working vehicle | Akira Tsuda | 1991-09-10 |