Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Kouichi Watanabe

Kouji Nishimura

Hidetsugu Fujimoto

Hiromi Sakita

Yoshitaka Mizoguchi

Yoshihiko Takayama

Hatsuhiro Yano

Kazuhiro Eguchi

Takumi Naruse

Ken Hirota

Hiromitsu Taki

Kuniaki Kiyosue

Toshiharu Noguchi

Kengo Shiiba

Junichi Onoue

Yuichi Murano

Nobuaki Nagai

Shinji Wada

Sachinori Ikeda

Satoshi Matsueda

Kimimichi Tokuda

Kongo Shiiba

Makoto Ogawa

Yoshiaki Fujimoto

Yumie Watanabe, Legal Representative

Minoru Sugimura

An antenna apparatus used in a wireless communication medium or a wireless communication medium processing apparatus constructed by a constitution of including a magnetic member in which a magnetic ceramic powder is used as a major component thereof and which is provided with flexibility; an antenna formed at a surface or inside of the magnetic member, and a matching circuit of the antenna formed at the surface or the inside of the magnetic member.

Antenna apparatus

An antenna apparatus used in a wireless communication medium or a wireless communication medium processing apparatus constructed by a constitution of including a magnetic member in which a magnetic ceramic powder is used as a major component thereof and which is provided with flexibility, an antenna formed at a surface or inside of the magnetic member, and a matching circuit of the antenna formed at the surface or the inside of the magnetic member.

Antenna apparatus employing a ceramic member mounted on a flexible sheet

Edge of a magnetic sheet

An exhaust gas filter for passing exhaust gas of a diesel engine or the like therethrough, thereby removing particulate matter from the exhaust gas. By suitably controlling physical properties of the exhaust gas filter such as a thermal expansion coefficient, the durability of the exhaust gas filter can be enhanced. When a constituent material for the exhaust gas filter includes aluminum titanate as a primary component, the durability can be further enhanced.

Exhaust gas filter

Apparatus for purifying exhaust gas from a diesel engine includes a wall-flow filter made of a porous ceramic material for capturing carbon components contained in the exhaust gas and burning up the captured carbon components, a first exhaust pipe for introducing the exhaust gas into the filter, a second exhaust pipe for introducing the exhaust gas purified by the filter a bypass pipe bypassing the filter, first and second valves arranged inside of the first and bypass pipes, respectively, for controlling the exhaust gas flow, a heater for burning up carbon components captured in the filter, first and second temperature sensors for detecting temperatures in the first pipe and the filter, respectively, and a controller for controlling opening and closing of the first and second valves based on the temperature difference between temperatures detected by first and second temperature sensors to prevent the filter from cracking.

Apparatus for purifying exhaust gas of diesel engine

A dielectric filter including a plurality of coaxial type dielectric resonators having outer conductors and inner conductors is arranged so that the outer conductors are connected to each other. Also included in the dielectric filter are central conductors arranged to be brought into contact with the inner conductors of said plurality of coaxial type dielectric resonators and a dielectric substrate having thereon a plurality of substrate conductors whose number at least corresponds to the number of the plurality of coaxial type dielectric resonators, and input/output terminals provided on said dielectric substrate. The central conductors are respectively coupled to the substrate conductors provided on the dielectric substrate and inductance elements are connected to the substrate conductors which are positioned at both sides.

Dielectric filter having inductive input/output coupling

A polycrystalline ferrite containing Na, Zr and Ca in amounts of 0.01 to 0.5% by weight, 0.005 to 0.5% by weight and 0.01 to 0.5% by weight respectively, in Mn-Zn or Ni-Zn ferrite to thereby enhance the toughness of said ferrite. Said ferrite is suited for a magnetic head with improved mechanical strength and excellent fine workability.

Polycrystalline ferrite and a magnetic head using the same

Growing community of inventors

Miyazaki, Japan

Kouichi Watanabe