Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5241558 | Vertical glass melting furnace | Yukihito Nagashima, Shigeki Nakagaki, Seiichiro Manabe, Yoshiyuki Inaka, Takashi Sunada +1 more | 1993-08-31 |
| 4360608 | Epoxy resin-bitumen material composition | Kenji Hijikata | 1982-11-23 |