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:
Feb. 18, 2003
Filed:
Mar. 13, 2001
Toshiharu Miyata, Kawasaki, JP;
Nobuyuki Hayashi, Kawasaki, JP;
Kouji Sasaki, Kawasaki, JP;
Tetsuro Kiriyama, Kawasaki, JP;
Mitutoyo Corporation, Kawasaki, JP;
Abstract
An induction type tranducer is formed to be a substrate having a multilayer structure. The substrate has a multilayer structure including six layers, a first layer through sixth layer. An exciting coil is formed at the first layer. Detecting coils are formed at the second layer and the third layer. A wiring layer is formed at the fifth layer at the opposite side of the scale from the core layer. A signal processing IC is formed at the sixth layer. A magnetic shield layer, which insulates magnetic flux from the exciting coil, is formed at the fourth layer between the exciting coil and the signal processing IC.