Rohm Co., Ltd.

Other

Tomoharu Horio

Yuki Tanuma

Osamu Miyata

Shigeyuki Ueda

Minoru Hirai

Teruki Ono

Shinobu Obata

Hideaki Hoki

Tomohiko Horikawa

Minoru Sakamoto

Hironori Daikoku

Kazutaka Shibata

Takumi Yamade

Satoshi Nakamura

Masatoshi Nakanishi

Okimoto Kondo

Yasuyuki Aritaki

Hiroyuki Tajiri

Tadatoshi Miwa

Nobuhito Kinoshita

Shigehiro Murakawa

Masashi Takagi

Yoshinori Minamikawa

Kazumi Morimoto

Satoshi Fujitani

Nobuo Asada

An LED lighting apparatus is disclosed. The LED lighting apparatus includes a substrate having a first surface; at least one connection body formed by LED chips arranged side by side in a first direction over the first surface of the substrate; and a circular protruding portion, arranged over the first surface of the substrate, surrounding the plurality of LED chips. The LED lighting apparatus further includes a first wiring pattern, arranged over the first surface of the substrate; and a second wiring pattern, arranged over the first surface of the substrate and spaced apart from the first wiring pattern.

LED lighting apparatus

An LED lighting apparatus is disclosed. The LED lighting apparatus includes a board having a principal surface, a plurality of LED chips mounted on the principal surface of the board, and a wiring pattern which is formed on the principal surface of the board and makes electrical conduction with the plurality of LED chips. Further, the LED lighting apparatus includes a frame-like bank which is provided on the principal surface of the board and surrounds the plurality of LED chips. In this case, the wiring pattern has one or more pads having a first portion interposed between the bank and the plurality of LED chips. The LED lighting apparatus further includes a protective layer covering at least a portion of the pads.

A heater includes an elongated substrate, a heating resistor formed on the substrate, a resistor electrode that is formed and is in contact with the heating resistor, and a heat conducting film. The substrate includes a heat generating section and a non-heat generating section. The heat generating section is a section that is overlapped with, out of the heating resistor and the resistor electrode, only the heating resistor in the lengthwise direction of the substrate. The non-heat generating section is a section that is different from the heat generating section and is adjacent to the heat generating section in the lengthwise direction of the substrate. The heat conducting film is formed so as to extend from the heat generating section into the non-heat generating section on the substrate.

Heater

A light emitting device includes a light emitting element, a wire connected to the light emitting element, and a substrate supporting the light emitting element. The substrate is formed with a first recess and a second recess that are open in a common surface of the substrate. The first recess includes a first bottom surface and a first side surface connected to the first bottom surface, and the light emitting element is disposed on the first bottom surface. The second recess includes a second bottom surface and a second side surface connected to the second bottom surface, and the wire is bonded to the second bottom surface. Both of the first side surface and the second side surface reach the common surface. The first side surface is connected to both of the second bottom surface and the second side surface. The opening area of the first recess is larger than the opening area of the second recess.

Light emitting device

An LED light source unit for a backlight of a liquid crystal display is provided. The light source unit includes a plurality of LED chips, an insulating substrate, and a metal film covering a principal surface of the substrate. The LED chips are mounted on the metal film. With this arrangement, brightness of the light source unit is enhanced.

LED light source unit for backlight of liquid crystal display, and liquid crystal display

A light emitting device includes a light emitting element, a wire, and a substrate. The substrate is formed with a first recess and a second recess that are open in a common surface of the substrate. The first recess includes a first bottom surface and a first side surface connected to the first bottom surface. The light emitting element is disposed on the first bottom surface. The second recess includes a second bottom surface and a second side surface connected to the second bottom surface. The wire is bonded to the second bottom surface. Both of the first side surface and the second side surface reach the common surface. The first side surface is connected to both of the second bottom surface and the second side surface. The opening area of the first recess is larger than the opening area of the second recess.

The object is to provide a thermal print head capable of improving printing quality on a medium. The Solution is to provide a base memberincluding a recess, a heat storage regionformed in the recess, a resistor layerformed on the base member, and an electrode layerformed on the base memberand electrically connected to the resistor layer. The resistor layerincludes a heating portionspanned between two portions of the electrode layerspaced from each other as viewed in a thickness direction Z of the base member. The heating portionis located so as to overlap the recessas viewed in the thickness direction Z. The base memberis made of a material having a thermal conductivity of 100 to 300 W/(m&#xb7;K).

Thermal print head and thermal printer

A linear light source device illuminates a document properly, and an image reading device includes such a light source device. The light source device includes a light source and a light-guiding member. The light-guiding member introduces the light emitted from the light source from one end portion in x-direction, cause the light to travel in x-direction, and emits the light from a light exit portion at one end in z-direction, which is orthogonal to x-direction. The light-guiding member includes, at the other end in z-direction, a light-reflecting portion that reflects light to the light exit portion. One end face of the light-guiding member in y-direction, which is orthogonal to x- and z-directions, is inclined so as to become closer to the other end face in y-direction with decreasing distance from the light exit portion in z-direction. This allows light to easily travel to the light-reflecting portion.

Linear light source apparatus and image reading apparatus

An infrared data communication module (A) includes a substrate () consisting of a first layer (A) and a second layer (B), where the first layer is formed with a recess () open at its obverse surface, and includes the opening of the recess () and the second layer is fixed to the first layer (A) on the side opposite from the opening. The module also includes a bonding conductor layer (A) covering at least the bottom surface of the recess (), a light emitting element () mounted on the bonding conductor layer (A), and a heat dissipating conductor layer (C) sandwiched between the first layer (A) and the second layer (B) and connected to the bonding conductor layer (A).

Optical communication module

A tilt sensor capable of detecting more diverse orientations is to be provided. The tilt sensor includes a light emitting element and a plurality of photodetectors, a rolling element, and a hollow portion that accommodates the rolling element so as to allow the rolling element to roll in all of x-, y-, and z-direction, and to locate the rolling element, according to a direction of the gravity, at one of detecting positions including a complete blocking position that inhibits light from the light emitting element from reaching any of the photodetectors, a plurality of partial blocking positions that inhibits the light from the light emitting element from reaching at least one but not all of the photodetectors, and a nonblocking position that permits the light from the light emitting element to reach all of the photodetectors, and two of the detecting positions are each located on a respective end portion of the hollow portion in the x-, y-, and z-direction.

Growing community of inventors

Kyoto, Japan

Tomoharu Horio