Issued Patents All Time
Showing 51–59 of 59 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5909053 | Lead frame and method for manufacturing same | Katsuya Fukase, Masao Nakazawa, Shinichi Wakabayashi | 1999-06-01 |
| 5656855 | Lead frame and method for manufacturing same | Katsuya Fukase, Masao Nakazawa, Shinichi Wakabayashi | 1997-08-12 |
| 5643433 | Lead frame and method for manufacturing same | Katsuya Fukase, Masao Nakazawa, Shinichi Wakabayashi | 1997-07-01 |
| 5242665 | Carbon containing compound treating apparatus with resistance to carbon deposition | Keikichi Maeda, Naohiko Kagawa, Kunio Ishii | 1993-09-07 |
| 5153384 | Circuit board and process for manufacturing same | Shinichi Wakabayashi | 1992-10-06 |
| 5103870 | Carbon deposition preventive double-layered tube for handling carbonaceous compounds | Kunio Ishii, Naohiko Kagawa | 1992-04-14 |
| 4976932 | Carbon containing compound treating apparatus with resistance to carbon deposition | Keikichi Maeda, Naohiko Kagawa, Kunio Ishii | 1990-12-11 |
| 4536455 | Centrifugally cast double-layer tube with resistance to carbon deposition | Keikichi Maeda, Eiichi Sato | 1985-08-20 |
| 4532109 | Process for providing an apparatus for treating hydrocarbons or the like at high temperatures substantially without carbon deposition | Keikichi Maeda | 1985-07-30 |