Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8595936 | Hollow rack end diameter reducing method | Takashi Yamawaki, Ryosuke Suzuki, Tsuyoshi Yamamoto, Yutaka Kiyosawa | 2013-12-03 |
| 8499660 | Hollow rack and hollow rack manufacturing method | Takashi Yamawaki, Ryosuke Suzuki, Tsuyoshi Yamamoto, Yutaka Kiyosawa | 2013-08-06 |
| 8104369 | Hollow rack, hollow rack end diameter reducing method, hollow rack end diameter reducing apparatus, and hollow rack manufacturing method | Takashi Yamawaki, Ryosuke Suzuki, Tsuyoshi Yamamoto, Yutaka Kiyosawa | 2012-01-31 |