Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869925 | Method for preparing aluminum nitride and its sinter | Atsuhiko Hiai, Kazuo Wakimura, Takao Tanaka | 1989-09-26 |
| 4859816 | Self canceller for a turn signal indicator | — | 1989-08-22 |
| 4845320 | Time difference switch | — | 1989-07-04 |
| 4810482 | Process for producing silanes | Tetsuya Iwao, Yoshiaki Toyoda, Kazuo Wakimura, Nobuhiro Kitano | 1989-03-07 |