Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8080098 | Water-based ink composition | Norimasa Kurihara, Shoko Matsumoto, Kyoko Sano, Yasunori Nakatani, Hiroyoshi Yamamoto +4 more | 2011-12-20 |
| 7914222 | Tip unit for liquid applicator, method for producing the same, and liquid applicator having the tip unit | Hiroshi Inoue, Norimasa Kurihara, Shoko Matsumoto, Kyoko Sano, Shigeki Yoneda +3 more | 2011-03-29 |
| 7905671 | Ink backflow preventive for water-based ball-point pens | Hirokazu Matsuda, Hiroshi Inoue | 2011-03-15 |