Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7505126 | Method and device for monitoring hydrogen gas and hydrogen flame | Koji Ichikawa, Hirofumi Miki, Tasuku Moriya | 2009-03-17 |
| 7385681 | Gas leakage monitoring method and its system | Koji Ichikawa, Ken Kawahara, Hirofumi Miki, Tasuku Moriya | 2008-06-10 |
| 4949213 | Drive circuit for use with voltage-drive semiconductor device | Kiyoaki Sasagawa, Hiroshi Miki, Tadashi Miyasaka | 1990-08-14 |
| 4904310 | Method of generating a metal vapor in a metal vapor laser | Kenji Hirata, Shigetoshi Yoshino, Hiromu Inoue, Jue Mizutani | 1990-02-27 |