Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7679679 | Synchronous detector | — | 2010-03-16 |
| 6304118 | Synchronous circuit having circuit for detecting phase error at center of reference signal | Tomokazu IKENO | 2001-10-16 |
| 5987460 | Document retrieval-assisting method and system for the same and document retrieval service using the same with document frequency and term frequency | Yoshiki Niwa | 1999-11-16 |
| 5501583 | Turbo vacuum pump | Takashi Nagaoka, Shinjiro Ueda, Seiji Sakagami, Akira Nishiuchi | 1996-03-26 |
| 5380171 | Turbo vacuum pump | Takashi Nagaoka, Shinjiro Ueda, Seiji Sakagami, Akira Nishiuchi | 1995-01-10 |