Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6960618 | Preparation method for rigid polyurethane foam | Junichiro Mori, Hideki Tosaki | 2005-11-01 |
| 5187127 | Fiber-reinforced silicon nitride ceramic | Yasuhiro Goto, Takeyuki Yonezawa, Jen Ando | 1993-02-16 |
| 5026737 | Process for the production of urethane-modified polyisocyanurate foam | Norio Tanaka | 1991-06-25 |
| 4886767 | Silicon nitride-ceramic and a manufacturing method therof | Yasuhiro Goto, Takeyuki Yonezawa | 1989-12-12 |
| 4853299 | Silicon carbide sintered body and method of manufacturing the same | Toshiaki Mizutani, Takeyuki Yonezawa, Hiroshi Inoue, Akihiko Tsuge | 1989-08-01 |