Kyocera Corporation

Kouichi Maruta

Hiroshi Oka

Hiroshi Tamura

Motoki Ito

Nobuyoshi Fujikawa

Akira Nagayama

Yuuko Yokota

Ayumu Matsumoto

Yasuhiko Fukuoka

Yoshifumi Yamagata

Shinji Isoyama

Takayuki Yamamoto

Daisuke Makibuchi

Yoshihiro Yuu

Kaoru Matsuo

Hiroshi Tachioka

Kousei Horiuchi

Hisayuki Inoue

Kazuhisa Momose

Shigeki Takaya

Shinichi Shimokihara

Masashi Kamada

Kenji Noguchi

Masashi Urabe

Kazumasa Furuhashi

Shinjiro Shimo

Hirofumi Toda

Hirofumi Suzuki

An image processing device includes an image processing unit, a UI unit, a VPN processing unit, and a housing. The image processing unit includes a printer and/or a scanner. The UI unit is the target of an input action performed by the user. The VPN processing unit connects to a VPN using authentication information obtained through the UI unit. The image processing unit, the UT unit, and the VPN processing unit are provided to the housing.

Image processing device having a VPN processing unit that connects to a VPN using authentication information obtained through UI unit for acquiring workflow using terminal address, information processing system and method

A liquid ejection head includes a first channel member and a plurality of pressurizing parts. The first channel member includes a plurality of ejection holes, a common channel, a damper chamber, and a damper. The first channel member is configured by a plurality of flat plates including a first plate with the plurality of ejection holes and a second plate adjacent to this. The second plate includes a first part sandwiched between the damper chamber and the first plate. A covering layer is unevenly provided on the first surface of the first part.

Liquid ejection head and recording device using same

To provide a power amplification device that can amplify an input signal having an envelope variation with high power-added efficiency in a wide frequency range, and a transmission device and a communication device using the power amplification device. A first orthogonal signal (Sd) is generated by performing vector subtraction between first and second fundamental signals (Suand Su) having the same amplitude and a phase difference &#x3b4;&#x3b8; (0 degrees&#x3c;&#x3b4;&#x3b8;&#x3c;180 degrees) therebetween. First and second fundamental signals are generated based on an input signal (Sin). A second orthogonal signal (Sd) is generated by performing vector addition between the first and second fundamental signals (Suand Su). First and second constant envelope signals (Sand S) are generated by performing vector addition between the second fundamental signal (Su) and first and second constant envelope vector generation signals (e and &#x2212;e) obtained based on the first fundamental signal (Su). An output signal (Sout) obtained by amplifying the input signal (Sin) is output based on the first and second constant envelope signals (Sand S).

Power amplification device, and transmission device and communication device using same

A sensor substratehaving on its lower surface a surface acoustic wave elementfor detecting pressure is mounted on a supporting substratethrough a sealing membersurrounding a sensor section. A sealing space S is formed by the sensor substrate, the supporting substrate, and the sealing member, and the surface acoustic wave elementfor detecting pressure is sealed hermetically in the sealing space S. Reliability can be enhanced by protecting the surface acoustic wave elementfrom the external environment.

Pressure sensor device

In a surface acoustic wave element, in which IDT electrodesand, a grounding electrode, etc. are formed one main surface of a piezoelectric substrate, resistorsmade of a semiconductor are provided to connection electrodesthat interconnect the respective electrodes. By forcing the charges generated in the IDT electrodes to move via the resistors, it is possible to provide a compact, highly reliable surface acoustic wave apparatus capable of preventing an electrostatic discharge damage in the IDT electrodes.

Surface acoustic wave apparatus and communications device

A surface acoustic wave device has: input external terminals, output external terminals and ground external terminals disposed on the outer peripheral surfaces of a container. In a cavity portion of the container, input pads, output pads and ground pads are respectively electrically connected to the input external terminals, the output external terminals and the ground external terminals. A plurality of SAW filter elements are housed in the cavity portion. A plurality of ground conductor films are respectively formed in areas where the SAW filter elements are respectively housed. The input, output and ground electrodes of the SAW filter elements are respectively connected to the input, the output and the ground pads. A metallic lid hermetically seals the cavity portion. Only one SAW filter element is connected to the same ground pad. All the round conductor films on which the SAW Liter elements are mounted are electrically separated from one another.

Surface acoustic wave device having plural ground conductor films in the housing cavity

A dielectric ceramic composition comprising main components represented by a composition formula on the weight basis, aMgO.multidot.bCaO.multidot.cTiO.sub.2, wherein a, b and c satisfy the following relationships, 25.ltoreq.a.ltoreq.35, 0.3.ltoreq.b.ltoreq.7, 60.ltoreq.c.ltoreq.70, a+b+c=100, blended with a boron-containing compound in an amount of from 3 to 20 parts by weight reckoned as B.sub.2 O.sub.3 and an alkali metal-containing compound in an amount of from 1 to 12 parts by weight reckoned as the alkali metal carbonate per 100 parts by weight of the main components, as well as a multilayer resonator made of said composition, and a filter using said resonator. The ceramic composition can be fired together with a conductor metal such as Ag or Cu at a relatively low temperature of 900.degree. to 1050.degree. C., exhibits large dielectric constant and Q-value, and a relatively small temperature coefficient .tau.f, lending itself well for use as a material for high-frequency electronic parts. The resonator made of this ceramic composition exhibits excellent tproperties in high-frequency regions, and can be realized in a small size.

Dielectric ceramic composition, multilayer resonator made of said

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Kokubu, Japan

Kouichi Maruta