Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646549 | Semiconductor device having an output circuit for transmitting low-voltage differential signals | — | 1997-07-08 |
| 5495237 | Measuring tool for collecting down hole information and metering valve for producing mud-pulse used in the same | Hajime Yuasa, Kazuho Hosono, Hikaru Kamiirisa, Hideyuki Miyaji | 1996-02-27 |