Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5210065 | Color-forming recording material | Michio Tanaka, Koji Kawai, Hiroyoshi Tarumoto, Keiki Kishikawa, Masato Kawamura +2 more | 1993-05-11 |
| 4996372 | Process for oxidizing 2,6-diisopropylnaphthalene | Kenji Saeki, Hiroshi Fukuhara, Tokinori Agoo, Toru Taguchi, Yutaka Haneda +1 more | 1991-02-26 |
| 4962241 | Process for producing dihydroxynaphthalenes | Masaaki Yasuda | 1990-10-09 |
| 4906790 | Method of oxidizing secondary alkyl substituted naphtalenes and a process of producing isopropylnaphthols | Masaharu Ishiguro, Nobuya Hirokane | 1990-03-06 |
| 4835325 | Process for producing hydroxybenzenes | Shintarou Araki, Masatoshi Nitabaru | 1989-05-30 |
| 4783557 | Processes for preparing hydroxynaphthalenes | Yutaka Haneda, Sadao Yoshimoto, Masaaki Yasuda, Shintarou Araki, Masatoshi Nitabaru | 1988-11-08 |
| 4347393 | Process for continuous production of cumene and/or diisopropylbenzene | — | 1982-08-31 |
| 4329510 | Process for purifying ketones | Kazutoyo Uno | 1982-05-11 |
| 4219507 | Process for purifying aldehyde-containing ketones | Mitsuki Yasuhara | 1980-08-26 |