Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4695407 | Method for purifying 1-aminoanthraquinone | Masatoshi Uegaki, Masakatsu Yoshimura, Shinzaburo Masaki, Tatsuo Kaneoya, Takashi Miyaoka +2 more | 1987-09-22 |
| 4612394 | Process for producing aminophenyl-.beta.-hydroxyethylsulfone | Kazuhiro Tada, Shinzaburo Masaki, Kunihisa Goto, Tatsuo Kaneoya | 1986-09-16 |
| 4323431 | Purification of compounds having high melting point | Masatoshi Takahashi, Masatoshi Uegaki, Takashi Miyaoka, Yuzo Maegawa | 1982-04-06 |