The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 10, 2017
Filed:
Jul. 31, 2012
Shun Kumano, Kokubunji, JP;
Masuyuki Sugiyama, Hino, JP;
Yuichiro Hashimoto, Tachikawa, JP;
Hideki Hasegawa, Tachikawa, JP;
Masuyoshi Yamada, Ichikawa, JP;
Kazushige Nishimura, Kokubunji, JP;
Hidetoshi Morokuma, Hitachinaka, JP;
Shun Kumano, Kokubunji, JP;
Masuyuki Sugiyama, Hino, JP;
Yuichiro Hashimoto, Tachikawa, JP;
Hideki Hasegawa, Tachikawa, JP;
Masuyoshi Yamada, Ichikawa, JP;
Kazushige Nishimura, Kokubunji, JP;
Hidetoshi Morokuma, Hitachinaka, JP;
HITACHI HIGH-TECHNOLOGIES CORPORATION, Tokyo, JP;
Abstract
A mass spectrometer for efficiently ionizing a sample with less carry-over. The ratio of the amount of sample gas to that of a whole headspace gas is increased by decreasing the pressure inside of a sample vessel in which the sample is sealed thereby efficiently ionizing the sample.