Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7700080 | Method of suppressing melanin production by metal chelates of lipoyl amino acid derivatives | Kazumi Ogata, Takahiro Sakaue | 2010-04-20 |
| 6387882 | Vitamin E derivatives | Kazumi Ogata, Hidetoshi Nakao, Takahiro Sakaue, Masahito Iemura, Yutaka Inoue | 2002-05-14 |
| 6358515 | Hydroquinone derivatives | Kazumi Ogata, Hidetoshi Nakao, Takahiro Sakaue, Sachiko Inoue, Masahito Iemura | 2002-03-19 |
| 6310067 | Urocanic acid derivatives | Kazumi Ogata, Takahiro Sakaue, Sachiko Inoue, Shinya Ogino | 2001-10-30 |
| 5981530 | Piperazine derivative | Kazumi Ogata, Takahiro Sakaue, Hidetoshi Nakao | 1999-11-09 |
| 5789409 | Benzylpiperazine derivative | Kazumi Ogata, Takahiro Sakaue, Shinya Ogino | 1998-08-04 |
| 5599807 | Steroid derivatives | Kazumi Ogata, Takahiro Sakaue, Yuuichi Isowaki, Hidetoshi Nakao | 1997-02-04 |