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:
Nov. 04, 2014
Filed:
Dec. 13, 2010
Tomoharu Nakamura, Mishima, JP;
Norio Matsui, Mishima, JP;
Shoichi Koyama, Susono, JP;
Tsutomu Ishida, Mishima, JP;
Shun-ichi Ebihara, Suntou-gun, JP;
Tomoharu Nakamura, Mishima, JP;
Norio Matsui, Mishima, JP;
Shoichi Koyama, Susono, JP;
Tsutomu Ishida, Mishima, JP;
Shun-ichi Ebihara, Suntou-gun, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a device for detecting a basis weight of a recording material, an initial measurement is performed by using ultrasonic waves that have passed through the recording material, and the recording material is roughly classified first. By changing the number of pulses of the driving signal in accordance with a result of the initial measurement, the basis weight of the recording material can be detected by using ultrasonic waves suitable for the recording material, so that the detection accuracy of the basis weight of the recording material can be increased.