Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8847543 | Secondary battery charging device and secondary battery charging system | Shigeki Yagi, Hirokazu Serita, Hiroyuki Konishi, Akiko Asahata, Yasuyuki Kanai +2 more | 2014-09-30 |
| 7288709 | Tuning device and tuning method | — | 2007-10-30 |
| 4899636 | Instrument for tuning musical instruments | Kazuyoshi Taniguchi, Hiroshi Iwase | 1990-02-13 |