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 7564563 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 21, 2009

Filed:

May. 31, 2007
Applicants:

Noriyuki Yokouchi, Tokyo, JP;

Junji Yoshida, Kyoto, JP;

Takahisa Harayama, Kyoto, JP;

Takehiro Fukushima, Kyoto, JP;

Akihiko Kasukawa, Tokyo, JP;

Shuichi Tamura, Kyoto, JP;

Keizou Inagaki, Kyoto, JP;

Morito Matsuoka, Kyoto, JP;

Inventors:

Noriyuki Yokouchi, Tokyo, JP;

Junji Yoshida, Kyoto, JP;

Takahisa Harayama, Kyoto, JP;

Takehiro Fukushima, Kyoto, JP;

Akihiko Kasukawa, Tokyo, JP;

Shuichi Tamura, Kyoto, JP;

Keizou Inagaki, Kyoto, JP;

Morito Matsuoka, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 19/72 (2006.01);
U.S. Cl.
CPC ...
Abstract

A laser gyro of the present invention includes laser light excitation means (a semiconductor laser device) that excites first and second laser lights propagating in the opposite directions to each other in a circular ring-shaped path (an optical path), coupling means (optical waveguidesand) for superimposing the first and the second laser lights, and a photodetector for observing an interference signal generated by the superimposed first and second laser lights.


Find Patent Forward Citations

Yokouchi, Noriyuki. (2009). Laser gyro and electronic device using the same (U.S. Patent No. 7564563). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7564563

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