Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5237048 | Method for purifying polymer | Hisashi Miyakawa, Tetsuo Maeda | 1993-08-17 |
| 5133913 | Method for producing a foamed resin using a blowing and extracting agent | Hisashi Miyakawa, Tetsuo Maeda | 1992-07-28 |
| 4510988 | Tube for thermal cracking or reforming hydrocarbon and manufacturing method thereof | Keizo Konoki, Ikuyoshi Kochi, Keiichi Shibata, Hisakatsu Nishihara, Toshiaki Morichika +2 more | 1985-04-16 |
| 4486472 | Method of preventing a combustion furnace from corrosion | Toshio Anzai, Tatsuji Shinogaya | 1984-12-04 |
| 4444731 | Tube for thermal cracking or reforming hydrocarbon | Keizo Konoki, Ikuyoshi Kochi, Keiichi Shibata, Hisakatsu Nishihara, Toshiaki Morichika +2 more | 1984-04-24 |
| 4444732 | Tube for thermal cracking or reforming of hydrocarbon | Keizo Konoki, Ikuyoshi Kochi, Toshio Anzai, Hisakatsu Nishihara, Junichi Sugitani +1 more | 1984-04-24 |