Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4695329 | Method for manufacturing a cylinder head of cast aluminum alloy for internal combustion engines by employing local heat treatment | Souichi Hayashi, Mototsugu Koyama, Kanji Sakaguchi | 1987-09-22 |