| US 7,492,159 B2 | ||
| Nuclear magnetic resonance spectrometer for liquid-solution | ||
| Michiya Okada, Mito (Japan); Tsuyoshi Wakuda, Hitachi (Japan); Shigeru Kakugawa, Hitachi (Japan); Hiroshi Morita, Hitachi (Japan); and Katsuzo Aihara, Hitachiota (Japan) | ||
| Assigned to Hitachi, Ltd., Tokyo (Japan) | ||
| Filed on Feb. 20, 2007, as Appl. No. 11/708,028. | ||
| Application 11/708028 is a continuation of application No. 11/402945, filed on Apr. 13, 2006, granted, now 7,190,167. | ||
| Application 11/402945 is a continuation of application No. 11/033630, filed on Jan. 13, 2005, granted, now 7,046,007. | ||
| Application 11/033630 is a continuation of application No. 10/208838, filed on Aug. 01, 2002, granted, now 6,888,352. | ||
| Application 10/208838 is a continuation of application No. 10/099978, filed on Mar. 19, 2002, granted, now 6,897,657. | ||
| Claims priority of application No. 2001-325760 (JP), filed on Oct. 24, 2001. | ||
| Prior Publication US 2007/0216414 A1, Sep. 20, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. G01V 3/00 (2006.01) | ||
| U.S. Cl. 324—321 | 4 Claims |
| 1. A nuclear magnetic resonance spectrometer comprising:
a solenoid type superconductive magnet having a horizontal winding axis, the superconductive magnet symmetrically arranged
with respect to the horizontal winding axis; a low temperature container for cooling the superconductive magnet; a magnetic
shield combined with the low temperature container; and a solenoid type reception coil for receiving a signal from a sample;
wherein the low temperature container includes a first passage extending along a direction perpendicular to the horizontal
winding axis for inserting the sample and a second passage extending along a direction parallel to the horizontal winding
axis, and
wherein the superconductive magnet is operated in a permanent current mode.
|