Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6159391 | Bleaching agent compositions | Tsuneo Kobayashi, Rumi Takano, Yasuhisa Kuriyama, Jun Kokubu, Yasuo Hiro +1 more | 2000-12-12 |
| 5929013 | Bleach product | Yasuhisa Kuriyama, Jun Kokubu, Yasuo Hiro, Yoshiko Tsuji, Tsuneo Kobayashi +1 more | 1999-07-27 |
| 5869440 | Peroxide activation method and peroxide composition | Tsuneo Kobayashi, Shuzo Nakamura | 1999-02-09 |
| 5783550 | Mold removal composition and mold bleaching method | Yasuhisa Kuriyama, Jun Kokubu, Yasuo Hiro, Yoshiko Tsuji, Tsuneo Kobayashi +1 more | 1998-07-21 |