Seiko Epson Corporation

Daisuke Nagano

Tsuyoshi Maeda

Eiji Okamoto

Katsunori Yamazaki

Yasushi Yamazaki

Kimitaka Kamijo

Takumi Seki

Akira Inoue

Yasuhiro Horiba

A piezoelectric device includes a diaphragm provided on a side of one surface of a substrate and a piezoelectric actuator having a first electrode, a piezoelectric body layer, and a second electrode which are stacked on a side of a surface opposite to the substrate of the diaphragm, in which the piezoelectric actuator includes an active portion in which the piezoelectric body layer is pinched between the first electrode and the second electrode, and has an uneven portion constituted with a plurality of projection portions and a recess portion formed between the projection portions on a surface of the first electrode on a side of the piezoelectric body layer at an end portion of the active portion.

Piezoelectric device, liquid ejecting head, and liquid ejecting apparatus

A piezoelectric device includes: a substrate having a plurality of recesses; a vibration plate provided on one side of the substrate; and a piezoelectric actuator including layers of first electrodes, a piezoelectric layer, and a second electrode provided in this order on the vibration plate side, and the piezoelectric actuator has a plurality of active portions including the first electrode, the second electrode, and the piezoelectric layer held between the first electrode and the second electrode, the first electrode serves as an individual electrode individually provided for each active portion, the second electrode serves as a common electrode shared by the plurality of active portions, and the second electrode includes a first end portion serving as a reference and a protruding portion protruding from an end portion of the active portion beyond the first end portion toward a coupling electrode electrically coupled to the first electrode.

An active portion of a piezoelectric actuator includes a first region provided in a region opposed to a recess and extending in a first direction, and a second region provided in a region corresponding to a central part in the first direction of the recess, and being configured such that a laminated body including the active portion and a vibration plate has a thickness larger than a thickness of a portion corresponding to the first region and that deformation of the second region is suppressed as compared to deformation of the first region when a voltage is applied between a first electrode and a second electrode.

A photoelectric converter including a crystalline silicon substrate having a light receiving surface including a smooth section and a rough surface section having surface roughness greater than the surface roughness of the smooth section and a light transmissive inorganic film so provided as to overlap with the smooth section and the rough surface section, and the film thickness tof a portion of the inorganic film that is the portion where the inorganic film overlaps with the rough surface section is smaller than the film thickness tof a portion of the inorganic film that is the portion where the inorganic film overlaps with the smooth section. The arithmetic average roughness of the rough surface section is preferably greater than or equal to 0.1 &#x3bc;m.

Photoelectric converter, photoelectric conversion module, and electronic instrument

A method for producing an electrode assembly which includes a first step of forming a molded body that contains an active material, a second step of dipping the molded body in a melt of a solid electrolyte in a first atmosphere, thereby impregnating the melt into voids inside the molded body; and a third step of cooling the molded body impregnated with the melt by moving the molded body to a second atmosphere whose temperature is lower than that of the first atmosphere, thereby combining the molded body with the solid electrolyte.

Method for producing electrode assembly and method for producing lithium-ion battery

A conductive paste is disposed on a transparent conductive film of a substrate in which a power generating film and the transparent conductive film are disposed in this order, a wiring member is disposed on the conductive paste through an anisotropic conductive film, and the anisotropic conductive film is heated while pressing the substrate and the wiring member by interposing them, and thus the wiring member is fixed.

Solar cell, electronic device, and manufacturing method of solar cell

A power generating film is disposed on a substrate, a transparent conductive film is disposed on the power generating film in an overlapping manner, a first insulating film having a thickness of greater than or equal to 1 &#x3bc;m is disposed on the transparent conductive film, and the substrate is formed into a predetermined shape by irradiating the substrate with laser light which is condensed thereto and by spraying gas onto the substrate.

A solar cell module includes a solar cell panel configured to have multiple pieces and a substrate that connects the multiple pieces to each other. The multiple pieces include a first piece and a second piece adjacent to the first piece. Opposing sides of the first piece and the second piece respectively have a mutually fittable shape. A length of the mutually fittable shape is longer than a distance of a straight line which connects both ends of the mutually fittable shape.

Solar cell module, timepiece, and electronic device

A method of manufacturing a solar cell module includes preparing a solar cell substrate including a support substrate, an electric power generating layer that receives light beams and generates electric power, and a conductive layer that is formed on the electric power generating layer, forming a resist layer on the conductive layer in such a manner that an exposed portion at which the conductive layer is exposed is formed, forming an electric conduction portion at a part of the exposed portion, and etching the conductive layer by using the resist layer and the electric conduction portion as a mask.

Method of manufacturing solar cell module, and solar cell module

A solar cell module includes a first segment as a first solar cell segment and a second segment as a second solar cell segment disposed adjacent to each other, and each having electrodes respectively on both of obverse and reverse sides, and a conductive member including a base member having flexibility, a first conductive layer disposed on one surface of the base member, and a second conductive layer disposed on the other surface of the base member, and the base member is bent so as to connect the first conductive layer to the obverse side electrode of the first segment, and connect the second conductive layer to the reverse side electrode of the first segment and the obverse side electrode of the second segment.

Conductive member, solar watch, solar cell module, and electronic apparatus

A method for driving a display sheet having a display layer having storage portions containing first particles and second particles includes a reset period having a first period in which the second particles are moved to one surface and also the first particles are moved to the other surface and a second period, after the first period, in which the first particles are moved to the one surface and also the second particles are moved to the other surface.

Display sheet, display device, electronic device, and display sheet driving method

To simplify a manufacturing process of a transverse electric field mode liquid crystal display device by using a non-linear resistance element such as a TFD (Thin Film Diode) as a switching element. In a liquid crystal display device having a pair of substrates with liquid crystal interposed therebetween, one of the substrates consists of an electrode substrate. On the electrode substrate, there are provided a first group of electrodes, a second group of electrodes crossing the first group of electrodes with an insulating layer interposed therebetween, non-linear resistance elements, one end of each of the non-linear resistance elements being connected to the respective one of the second group of electrodes, and pixel electrodes opposing the first group of electrodes, each pixel electrode being connected to the other end of each of the non-linear resistance elements. Since the non-linear resistance elements have a so-called TFD (MIM) structure made of metal-insulating layer-metal, the manufacturing process is simple. Therefore, it is possible to manufacture the transverse electric field mode display device at low cost.

Growing community of inventors

Matsumoto, Japan

Daisuke Nagano