Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7400810 | Tool and method for assembling linear elements into ribbon shape, and linear elements assembled into ribbon shape and terminal portion structure of the same | Hiroyasu Sugiyama, Shinsuke Niiyama, Kazuhiro Sato, Tsuyoshi Ikada | 2008-07-15 |
| 7279627 | Action for piano | — | 2007-10-09 |
| 7126049 | Method of improving repetitive striking performance, jack and action mechanism of piano | — | 2006-10-24 |
| 5216040 | Rigid polyurethane foam and process for producing the same | Kazuyoshi Kuroishi, Reishi Naka, Isao Kobayashi, Katuhiko Gotoo | 1993-06-01 |