Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5780047 | Patch | Kouichi Niinaka, Keiko Morioka, Hidenori Yorozu, Michitaka Sawada, Masaki Iwasaki | 1998-07-14 |
| 5780418 | Bathing preparation | Kouichi Niinaka, Katsuhiko Takeuchi, Hidenori Yorozu | 1998-07-14 |
| 5433957 | Vasodilating agent | Seiji Kikuta, Katsunori Aizawa, Seiji Kosemura, Mitsuyuki Hotta | 1995-07-18 |
| 5288485 | Vasodilating agent | Seiji Kikuta, Katsunori Aizawa, Seiji Kosemura, Mitsuyuki Hotta | 1994-02-22 |
| 4948588 | Percutaneous absorption accelerator and preparation containing same | Takeshi Inoue, Hidenori Yorozu, Yasuteru Eguchi, Kaoru Tsujii | 1990-08-14 |
| 4879274 | External medication for skin | Shuichi Tsuchiya, Kenji Hara | 1989-11-07 |
| 4859696 | Precutaneous absorption accelerator and preparation containing same | Takeshi Inoue, Hidenori Yorozu, Yasuteru Eguchi, Kaoru Tsujii | 1989-08-22 |
| 4686211 | Medical composition for external application | Kenji Hara, Hiromichi Takahashi, Kaoru Tsujii | 1987-08-11 |