Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4469506 | Production process of ferromagnetic iron powder | Haruo Sekiguchi, Kimiteru Tagawa, Nobuhiro Fukuda | 1984-09-04 |
| 4390737 | Process for the ortho-alkylation of phenolic compounds | Akihide Kudoh, Motoo Kawamata, Makoto Kotani, Takeshi Tsuda, Satoshi Morita | 1983-06-28 |
| 4388478 | Process for the ortho-alkylation of phenolic compounds | Akihide Kudoh, Motoo Kawamata, Makoto Kotani, Takeshi Tsuda, Fukuichi Aoki | 1983-06-14 |
| 4375566 | Process for producing ortho-alkylated phenols from anisoles | Motoo Kawamata, Mitsuo Onofusa, Akihide Kudoh, Makoto Kotani, Takeshi Tsuda | 1983-03-01 |
| 4361709 | Process for the production of o-alkylated phenols | Motoo Kawamata, Mitsuo Onofusa, Akihide Kudoh, Makoto Kotani, Takeshi Tsuda | 1982-11-30 |
| 4342589 | Process for preparing iron compound particles for use in magnetic recording | Mitsuro Matsunaga, Haruo Sekiguchi, Kazuhiro Imaoka, Fujio Hayashi | 1982-08-03 |
| 4227023 | Process for the selective ortho-alkylation of phenolic compounds | Motoo Kawamata, Tadamitsu Kiyoura, Yasuo Kogure, Akihide Kudoh, Makoto Kotani | 1980-10-07 |
| 4208537 | Process for the selective ortho-alkylation of phenolic compounds | Motoo Kawamata, Akihide Kudoh, Makoto Kotani | 1980-06-17 |