Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12266809 | Power supply device | Akio Yamasaki, Kazuhiro Kawamura, Koichi Sawada, Chifumi Murayama | 2025-04-01 |
| D498876 | Lighter | Robert E. Lee, Susan E. Wrenn, Ashok Solanky, Seiichi Kawakami, Masato Sano | 2004-11-23 |
| D467868 | Travel charger | Marc-Robert Chemla, Charles T. Higgins, Seiichi Kawakami, Masato Sano, Takahide Takeda | 2002-12-31 |
| D445760 | Charger | Shozo Minagawa, James M. Clark, Seiichi Kawakami | 2001-07-31 |
| D433532 | Hand-held smoking unit | Charles T. Higgins, Shunichi Kuriyama, Takahide Takeda, Masato Sano, Shigehito Uemura +1 more | 2000-11-07 |
| D422113 | Hand-held smoking unit | Charles T. Higgins, Shunichi Kuriyama, Takahide Takeda, Masato Sano, Shigehito Uemura +1 more | 2000-03-28 |
| D417649 | Charger stand | Charles T. Higgins, Shunichi Kuriyama, Takahide Takeda, Masato Sano, Shigehito Uemura +1 more | 1999-12-14 |