Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888878 | Fine positioning device | Kiyoshi Nagasawa, Kozo Ono, Kojiro Ogata, Ken Murayama | 1989-12-26 |
| 4869147 | Attachment of support leg for base drum | — | 1989-09-26 |
| 4850258 | Snare drum head with odd number of attachment bolts | Taisei Sugiyama | 1989-07-25 |
| 4846040 | Spring tension adjustment and indicator for a high hat stand | — | 1989-07-11 |
| 4843943 | Strap connection for a guitar or stringed instrument | — | 1989-07-04 |
| 4829874 | Support for bass drums | — | 1989-05-16 |
| 4811646 | Holding structure for the tremolo of a guitar | — | 1989-03-14 |
| 4796508 | Musical instrument support fixture | — | 1989-01-10 |