Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7066626 | LED lamp | — | 2006-06-27 |
| D520965 | Light emitting diode for illuminating an object | — | 2006-05-16 |
| 6646217 | Tactile switch | — | 2003-11-11 |
| D467882 | Depression switch | — | 2002-12-31 |
| D467881 | Depression switch | — | 2002-12-31 |
| D434388 | Multi-directional switch for a light-emitting device | — | 2000-11-28 |
| D434390 | Multi-directional switch | — | 2000-11-28 |
| 5209978 | Seamless soft capsule and production thereof | Tadashi Kosaka, Tatsuo Hashimoto, Teruaki Yamazaki, Kazuo Hayashi, Tomiya Hosoi +1 more | 1993-05-11 |
| 4987031 | Capsule | Shinzo Tatematsu, Tatsuo Hashimoto, Masato Takahashi, Noriichi Ito | 1991-01-22 |