Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D662541 | Silencer | Kota Hamanaga | 2012-06-26 |
| D635609 | Silencer for saxophone | — | 2011-04-05 |
| D621439 | Silencer for trumpet | — | 2010-08-10 |
| 7705227 | Mouthpiece of brass instrument | — | 2010-04-27 |
| 6018114 | Rotary valve of brass instrument | — | 2000-01-25 |
| 5973246 | Mute attached to brass instrument without change of pitch of sound | Yoshihiko Matsukuma | 1999-10-26 |
| D386197 | Sound arrester for wind instrument | — | 1997-11-11 |
| D386198 | Sound arrester for wind instrument | — | 1997-11-11 |
| D381037 | Sound arrester for wind instrument | — | 1997-07-15 |
| 5569864 | Mute attached to brass instrument without change of pitch of sound | Yoshihiko Matsukuma | 1996-10-29 |
| 5503055 | Wind instrument fabricated from metallic tubular parts with inwardly rounded ends | — | 1996-04-02 |
| 5367938 | Horn with intermediate tube network enlarged in inner diameter | — | 1994-11-29 |
| 5237902 | Wind instrument with link mechanism for transmitting lever action to rotary valve unit or key | — | 1993-08-24 |
| 4970932 | Structure of rotary valve assembly used in wind instrument | — | 1990-11-20 |
| 4696454 | Valve shifting mechanism for a brass instrument | — | 1987-09-29 |