Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7011488 | Slide arm for working machine | Tatsushi Itoh, Toshihiko Sakashita | 2006-03-14 |
| 6637111 | Method for making a boom of an excavator | Hidetoshi Sasaki, Toshio Tanaka, Tatsushi Itoh | 2003-10-28 |
| 6536652 | Structure for working unit for bucket excavators and method for manufacturing the same | Hidetoshi Sasaki, Toshio Tanaka, Tatsushi Itoh | 2003-03-25 |
| 6508019 | Boom of bucket type excavator and method for making same | Hidetoshi Sasaki, Toshio Tanaka, Tatsushi Itoh | 2003-01-21 |
| 6349489 | Structure for working unit for bucket excavators and method for manufacturing the same | Hidetoshi Sasaki, Toshio Tanaka, Tatsushi Itoh | 2002-02-26 |
| D451105 | Arm of excavator | Toshihiko Sakashita | 2001-11-27 |
| 4517726 | Method of producing seal ring | Naohiko Yokoshima, Akira Sui | 1985-05-21 |