Sanyo Electric Co., Ltd.

Kenichiro Wakisaka

Hiroshi Nonoue

Takashi Umemoto

Toshihiko Yamaoki

Hideki Yoshikawa

Masayuki Iwamoto

Kouji Minami

Rintaro Aoyagi

Keiichi Kuramoto

Yukinori Kuwano

Takeshi Sano

Shoichi Nakano

Takeshi Kobayashi

Hiroyuki Fujii

Koji Minami

Takeo Fukatsu

Masaru Takeuchi

Toshio Tanuma

Kazuyuki Gotoh

Shigeo Yata

Koh Masahara

Kazuhiko Honma

Tomonori Nagashima

A touch sensor includes a contact sensor and a pressure sensor. The contact sensor includes a first electrode and a first switching element connected to the first electrode, and detects a change in an electric potential when an object contacts a surface. The pressure sensor includes a second electrode and a second switching element connected to the second electrode, and detects a change in a pressure when an object depresses the surface. The touch sensor includes a plurality of the contact sensors and a plurality of the pressure sensors disposed regularly in an array.

Touch sensor, touch pad and input device

A p-type ZnO semiconductor film comprised mainly of Zn and O elements is disclosed. The film is characterized as containing an alkali metal and nitrogen. Preferably, the alkali metal is contained such that its concentration is distributed to increase toward an end or toward both ends in the thickness direction of the film. More preferably, the alkali metal is contained in the concentration range of 1&#xd7;10-5&#xd7;10cmand the nitrogen in the concentration range of 2&#xd7;10-5&#xd7;10cm.

P-type zinc oxide semiconductor film and process for preparation thereof

A dielectric ceramic composition characterized as containing a dielectric material which contains a dielectric composition represented by the compositional formula a.LiO-b.(CaO&#x2014;SrO)-c.RO-d.TiO(wherein x satisfies 0&#x2266;x&#x3c;1; R is at least one selected from La, Y and other rare-earth metals; and a, b, c and d satisfy 0&#x2266;a&#x2266;20 mol %, 0&#x2266;b&#x2266;45 mol %, 0&#x3c;c&#x2266;20 mol % and 40&#x2266;d&#x2266;80 mol %) and at least one of oxides of Group 4 and Group 14 metallic elements of the Periodic Table.

Dielectric ceramic composition and multilayer ceramic part using the same

A multilayer ceramic substrate which is obtained by firing multilayers of ceramic green sheets each having a dielectric layer, made of a glass-ceramic material comprising a mixture of alumina and a glass containing at least Si and Ca, and an electrode layer made of Ag and formed on the dielectric layer. The dielectric layer after firing includes anorthite (CaAlSiO) crystals having a grain size of up to 84 nm.

Multilayer ceramic substrate and method for manufacture thereof

A dielectric ceramic material which is obtained by firing a raw material comprising an alumina powder and a glass powder containing at least SiOand MgO, the dielectric ceramic material being characterized in that a ratio (MgAlO(311)/AlO(116)) in X-ray diffraction peak intensity of an MgAlO(311) to an AlO(116) is at least 0.5.

Dielectric ceramic material and multilayer ceramic substrate

A dielectric ceramic composition containing a dielectric material and a glass, characterized in that the dielectric material is represented by the compositional formula a&#xb7;LiO-b&#xb7;(CaO&#x2014;SrO)-c&#xb7;RO-d&#xb7;TiO(wherein x satisfies 0&#x2266;x&#x3c;1; R is at least one selected from La, Y and other rare-earth metals; and a, b, c and d satisfy 0&#x2266;a&#x2266;20 mol %, 0&#x2266;b&#x2266;45 mol %, 0&#x3c;c&#x2266;20 mol %, 40&#x2266;d&#x2266;80 mol % and a+b+c+d=100 mol %.) and the glass contains at least 30 % by weight of BiO3.

A dielectric ceramic composition containing crystalline glass, amorphous glass and a ceramic filler, characterized in that a softening point of said crystalline glass is higher than a softening point of said amorphous glass and is 900&#xb0; C. or lower, and 27% by weight or higher of the crystalline glass and less than 20% by weight of the amorphous glass are contained in the ceramic composition and the total content of the crystalline glass and the amorphous glass is 60% by weight or lower, and 40% by weight or higher of the ceramic filler is contained in the ceramic composition.

Dielectric ceramic composition and laminated ceramic device using the same

A method for manufacturing a multilayer ceramic substrate including the steps of providing multilayers of ceramic green sheets each having an electrode layer formed on a dielectric layer such that, after firing, at least one electrode layer which is separated by the dielectric layer from the adjacent electrode layer in the substrate has an overlapping area of 0.4 mmor smaller with the adjacent electrode; and firing the multilayers of the ceramic green sheets at a selected temperature such that, after firing, an interface between the dielectric layer and the electrode layer in the substrate has irregularities with a roughness Rmax of 6 &#x3bc;m or less per 100 &#x3bc;m standard length and the dielectric layer has a saturation sintered density.

Method for manufacture of multilayer ceramic substrate and multilayer ceramic substrate

An electrostatic latent image member for use in an electrophotographic machine which can simultaneously perform such as charge not by a corona discharge, exposure, developing, cleaning, and the like, where a photosensitive unit including a photoconductive layer is laminated on a transparent supporting member, and the photosensitive unit which is added with an element for trapping an electric charge being injected in the vicinity of its surface can trap the electric charge being injected therein by a magnetic brush making contact with the outer surface of the photosensitive unit.

Electrostatic latent image apparatus

An electrostatic recording apparatus includes a photosensitive drum which is charged at +700 V by a first charger. Intensity of the light emitted from an LED array that is downstream from the first charger is adjusted such that a light image having strong intensity and/or a light image having weak intensity can be irradiated to the photosensitive drum. A surface voltage of a portion where the light image having weak intensity is irradiated becomes +400 V. A surface voltage of a portion where the light image having strong intensity is irradiated becomes +100 V. The photosensitive drum is charged at -400 V in the reverse polarity opposite to that of the first charger by a second charger which is arranged downstream from the LED array. As a result, electrostatic latent images of three gradations having voltages of +300 V, 0 V and -300 V respectively are formed on the photosensitive drum. The electrostatic latent images of +300 V and -300 V are respectively developed by developers with a black toner being charged in the negative polarity (-) a red toner being charged in the positive polarity (+).

Electrostatic recording apparatus and method for producing color images

A recording head comprises a magnetically permeable substrate, a superconducting film formed on one side of said substrate, a means for producing a uniform magnetic field sustantially perpendicular to a surface of the superconducting film, and a means for locally destroying the superconductivity of the superconducting film so as to produce a pattern of normal conducting portions in the area of the superconducting film where the magnetic field is applied. A recording device comprises a recording head for producing a pattern of a magnetic field on a recording medium, a toner supply unit arranged in face-to-face relationship with the recording head at a spaced short distance from the head to form a visible pattern of magnetic toners on the recording medium, and a fixing unit for fixing the magnetic toners on the recording medium to complete a record. When electric signals are applied to the recording head, the superconducting film is locally changed from the superconducting state into the normal conducting state so that the magnetic field applied to the film may penetrate through normal conducting portions of the film to produce a magnetic pattern on the recording medium. Almost simultaneously with the formation of the magnetic dot pattern, a visible powder pattern is directly formed on the recording sheet, and then fixed on thereon by fusion.

Recording head and its application

An electrophotographic photosensitive sensor comprises a blocking layer, a photoconductive layer and a surface layer made mainly of microcrystalline or amorphous silicon and/or germanium and formed on a conductive substrate. At least one of the layers including the blocking layer, the photoconductive layer or the surface layer includes a multilayer which includes a plurality of constituent thin layers having different optical energy band gaps.

Growing community of inventors

Iga, Japan

Kenichiro Wakisaka