Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673008 | Voltage-controlled oscillator and PLL circuit exhibiting high-frequency band operation, linear frequency characteristics, and power-source variation immunity | — | 1997-09-30 |
| 5651884 | Packing material for liquid chromatography | Takeshi Ichitsuka, Tetsuro Ogawa, Katsumi Kawamura, Akihiko Yokoo | 1997-07-29 |