Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5387264 | Method for dyeing or coloring organic macromolecular substance by using coumarin compound or coloring material | Yasuo Murakami, Tadaaki Sugimoto, Masao Ohnishi | 1995-02-07 |
| 4771132 | Cuprophthalocyanine type compounds | Masayoshi Ojima, Shigeo Yamamura | 1988-09-13 |
| 4453945 | Process for dyeing cellulose fibers of its union fibers with reactive triazinyl dye quaternized with nicotinic acid | Masakatsu Miyamoto, Yoshiharu Suzuki, Masayoshi Ojima, Yutaka Iizuka, Tadashi Matsuo | 1984-06-12 |