Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4912259 | Pentadiene amino compound | Kazuo Kaneko, Masahiko Yamaguchi, Michihiro Gonda, Kensaku Okano | 1990-03-27 |
| 4612558 | Fluoran compounds | Mitsutoshi Anzai, Masahiko Yamaguchi, Susumu Suzuka, Michihiro Gonda, Toshiyuki Abe +2 more | 1986-09-16 |
| 4271075 | Process for producing 3,3-bis-(4-dimethylaminophenyl)-6-dimethylaminophthalide | Mitsuru Nagata | 1981-06-02 |