US Patent No. 9,918,393

PRINTED CIRCUIT BOARD, POWER SUPPLY APPARATUS, IMAGE FORMING APPARATUS, AND PRINTED CIRCUIT BOARD MANUFACTURING METHOD


Patent No. 9,918,393
Issue Date March 13, 2018
Title Printed Circuit Board, Power Supply Apparatus, Image Forming Apparatus, And Printed Circuit Board Manufacturing Method
Inventorship Osamu Nagasaki, Numazu (JP)
Masamichi Iida, Yokohama (JP)
Hiroshi Mano, Numazu (JP)
Assignee CANON KABUSHIKI KAISHA, Tokyo (JP)

Claim of US Patent No. 9,918,393

21. A printed circuit board to be mounted with a piezoelectric element including a primary side electrode pair configured
to input a voltage, a secondary side electrode configured to generate a output voltage according to the inputted voltage to
the primary side electrode pair and a conductive resistor that couples the primary side electrode pair, and a semiconductor
component connected to the piezoelectric element, the printed circuit board comprising:
a first connection part connected to the primary side electrode pair;
a second connection part connected to the secondary side electrode; and
an opening arranged between the first connection part and the second connection part, and the opening is arranged at a position
different from a position at which the conductive resistor faces the printed circuit board, and

wherein a part of the piezoelectric element can be seen through the opening from a side of a surface of the printed circuit
board opposite to another surface of the printed circuit board on which the piezoelectric element is mounted.