Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4954314 | Method and apparatus for manufacturing synthetic products | Yukio Nishiyama, Junzo Fujioka, Yuji Matsuzaki, Masayuki Sakiyama, Minoru Yokoyama | 1990-09-04 |
| 4834036 | Composite valve for reciprocating engines and method for manufacturing the same | Yukio Nishiyama, Junzo Fujioka, Takuya Miyashita | 1989-05-30 |