Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Hironori Motomitsu

Shogo Nakayama

Eiichi Uriu

Atsushi Shinkai

Hiroshi Fujii

Hironobu Chiba

Tsutomu Inuzuka

Tomoyuki Washizaki

Yuji Yamagishi

Kazutoshi Matsumura

Naoki Mutou

Takeshi Orita

Keiji Kawajiri

Kazuo Oishi

Michiya Watanabe

Tsutomu Inuduka

A varistor includes a sintered body, an internal electrode, an insulating layer, and an external electrode. The internal electrode is disposed in an interior of the sintered body. The insulating layer covers at least part of the sintered body and includes ZnSiO. The external electrode is electrically connected to the internal electrode, covers part of the sintered body and part of the insulating layer, and is in contact with the part of the insulating layer. The insulating layer has a region being in contact with the external electrode, the region having a greater average thickness than a region of the insulating layer which is out of contact with the external electrode.

Varistor and method for manufacturing the same

A laminated ceramic component includes a ferrite magnetic layer and a glass ceramic layer made chiefly of borosilicate glass. The glass ceramic layer is laminated with the ferrite magnetic layer, and has an Ag inner conductor embedded inside. A microscopic region where aluminum and silver coexist is dispersed in the glass ceramic layer.

Multilayered ceramic component and manufacturing method thereof

A common mode noise filter includes a nonmagnetic layer, first and second magnetic layers sandwiching the nonmagnetic layer between the magnetic layers and contacting the nonmagnetic layer, a plane coil provided between the first and second magnetic layers and contacting the nonmagnetic layer, and an external electrode connected electrically with the plane coil. The first and second magnetic layers include a magnetic oxide layer and an insulator layer provided on the magnetic oxide layer. The insulator layer contains glass component. This common mode noise filter has a large bonding strength between the external electrode and the insulator layer.

Common mode noise filter

In a noise filter having a large impedance in a common mode, a first conductor and a second conductor provided on first magnetic sheets and have spiral shapes of plural turns and spaced from each other for avoiding short-circuit. The first conductor is provided inside the spiral shape of the second conductor. The other end of the first inner conductor is located adjacent to the other end of the second inner conductor. The respective other ends of the first inner conductor and the second inner conductor on the magnetic sheet are connected at the respective other ends to first and second conductors provided on another magnetic sheet.

Noise filter and electronic apparatus comprising this noise filter

Growing community of inventors

Osaka, Japan

Hironori Motomitsu