3 patents
Design
Electronic percussion instrument
18 May 20
Shigeru Sawada, Hirotaka Koga
Filed: 19 Sep 18
Design
Percussion detecting device
20 Apr 20
Shigeru Sawada, Ryohei Kanayama, Kotaro Nomura
Filed: 13 Jun 18
Design
Electronic keyboard instrument
23 Mar 20
Tetsuya Uesugi, Shinichi Matsumoto
Filed: 28 Aug 18
- Prev
- 1
- Next
Patents are sorted by USPTO publication date, most recent first