Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4666882 | Method of preparation of catalyst and catalyst prepared by the method for converting nitrogen oxides in exhaust gases | Susumu Okazaki | 1987-05-19 |
| 4652544 | Solid acid catalyst of acid-treated hydrated niobium oxide and method for its preparation | Susumu Okazaki, Tokio Iizuka | 1987-03-24 |
| 4298661 | Surface treated steel materials | Teruo Ikeno, Saburo Ayusawa, Hironobu Kawasaki, Takashi Watanabe | 1981-11-03 |
| 4269904 | Manganese surface coated steel materials | Teruo Ikeno, Saburo Ayusawa, Hironobu Kawasaki, Takashi Watanabe | 1981-05-26 |
| 4204862 | Austenitic heat-resistant steel which forms Al.sub.2 O.sub.3 film in high-temperature oxidizing atmosphere | Taketomo Yamazaki, Tetsu Sakamoto, Mikio Yamanaka, Kotaro Yoshida | 1980-05-27 |