Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809654 | Ceramic precombustion chamber construction of internal combustion engine | Takayuki Ogasawara, Akinori Wakasa, Minoru Machida, Itsuo Kondo | 1989-03-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809654 | Ceramic precombustion chamber construction of internal combustion engine | Takayuki Ogasawara, Akinori Wakasa, Minoru Machida, Itsuo Kondo | 1989-03-07 |