Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679897 | Piezoelectric type acceleration sensor with metallic case and resin package | Hideki Matsumoto, Harumi Aoki, Katsuyuki Tsuji, Toshiharu Saitoh | 1997-10-21 |
| 5443382 | Atmospheric oven | Koichi Tsurumi, Koichi Kumagai | 1995-08-22 |
| 5370531 | Atmospheric oven | Koichi Tsurumi, Koichi Kumagai | 1994-12-06 |
| 5043223 | Multilayer ceramic substrate and method for making the same | Koichi Kumagai | 1991-08-27 |