Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7189133 | Reversibly metachromatic toy | Kuniyuki Senga, Masanori Takeda | 2007-03-13 |
| 6946168 | Reversibly thermochromic ultraviolet ray-hardening ink composition and reversibly thermochromic laminate using the same | Kuniyuki Senga, Makoto Miyamoto | 2005-09-20 |