Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875712 | Joint structure for a tube support plate and a tube | Noriyuki Oda, Tetsuo Takehara, Keiji Muramatsu | 1989-10-24 |
| 4867769 | Supporting structure for ceramic tubes in a gas system | Noriyuki Oda, Hiroshi Maeno | 1989-09-19 |
| 4838581 | Joint structure for a tube support plate and a tube | Noriyuki Oda, Tetsuo Takehara, Keiji Muramatsu | 1989-06-13 |