Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869925 | Method for preparing aluminum nitride and its sinter | Atsuhiko Hiai, Masao Tanaka, Takao Tanaka | 1989-09-26 |
| 4810482 | Process for producing silanes | Tetsuya Iwao, Yoshiaki Toyoda, Nobuhiro Kitano, Masao Tanaka | 1989-03-07 |