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.:

US 6891172 B1

PDF
Full Text
Expired
Date of Patent:
May. 10, 2005

Filed:

Aug. 28, 2003
Applicants:

Nobuaki Ohgushi, Tochigi, JP;

Akira Miyake, Tochigi, JP;

Takayuki Hasegawa, Tokyo, JP;

Jun Ito, Tochigi, JP;

Inventors:

Nobuaki Ohgushi, Tochigi, JP;

Akira Miyake, Tochigi, JP;

Takayuki Hasegawa, Tokyo, JP;

Jun Ito, Tochigi, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61N005/00 ;
U.S. Cl.
CPC ...
Abstract

A differential pumping system includes a first chamber for storing a light source that emits pulsed light, a first exhaust unit for exhausting said first chamber, a second chamber being connectible to the first chamber to receive the pulsed light, a second exhaust unit for exhausting said second chamber, and a connection control mechanism between the first and second chambers for connecting the first chamber to the second chamber when the pulsed light emits, and for disconnecting the first chamber from the second chamber when the pulsed light does not emit.


Find Patent Forward Citations

Ohgushi, Nobuaki. (2005). Differential pumping system and exposure apparatus (U.S. Patent No. 6891172). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6891172

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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