Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4800321 | High pressure sodium lamp | Akihiro Yonezawa, Shinichi Ooshima, Akihiro Kamiya, Yoshio Hirose | 1989-01-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4800321 | High pressure sodium lamp | Akihiro Yonezawa, Shinichi Ooshima, Akihiro Kamiya, Yoshio Hirose | 1989-01-24 |