Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4970769 | Method for producing cylinder having scavenging passages for two-cycle internal combustion engine | Kazuyuki Nishiwaki, Kazumasa Okano, Isao Masuda, Akira Sageshima, Minoru Yonekawa | 1990-11-20 |