Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6898956 | Metal ring inputting and outputting device | Hideshi Sato, Kiyonori Okano, Minoru Tomizawa, Masao Nitta, Yoshiharu Watabe | 2005-05-31 |
| 6854310 | Device for correcting circumferential length of metal ring | Tomotsugu Takahashi, Katsuyuki Nakajima, Takehisa Kimura, Masao Nitta, Yoshiharu Watabe | 2005-02-15 |
| 6726547 | Cutting device for sheet metal drum | Yoshiharu Watabe, Takehisa Kimura, Tomotsugu Takahashi, Toru Nagakura, Yoriyuki Watanabe | 2004-04-27 |