Mitsubishi Materials Corporation

Kenzo Nakamura

Mototaka Ishikawa

Kazuyoshi Tari

Gakuji Uozumi

Keiji Shirata

Tumoru Nagira

Sei Kitaguchi

Kenichiro Hosobuchi

Akira Shibuno

Hideaki Sakurai

Nobuyuki Soyama

Toshihiro Doi

Kazunori Igarashi

Nobuyuki Yamashita

Masashi Nishiyama

Fumio Matsumoto

Yoshihiro Matsuno

Provided are an infrared sensor and an infrared sensor device that are less susceptible to effects from the casing and lead wires, can be surface-mounted, and can measure the temperature of the object to be measured in a more accurate manner. This invention has: an insulating film; a first and a second heat sensitive element provided on the insulating film; a first and a second wiring film that are respectively connected to the heat sensitive elements; an infrared reflecting film; a terminal support body, arranged on the one face; and a plurality of mounting terminals provided to the terminal support body, wherein the mounting terminals have support convex parts protruding upward, the support convex parts are connected to the corresponding first and second wiring films, and the insulating film is supported such that a gap is provided between the terminal support body and the insulating film.

Infrared sensor and infrared sensor device

A non-contact temperature sensor is provided, the sensor including: an insulating film, a thin film thermistor portion formed on a front-surface of the insulating film, a pair of comb shaped electrodes formed on the thin film thermistor portion, a pair of pad electrodes formed on the front-surface of the insulating film, a pair of pattern wiring portions, and a pair of lead frames that is adhered to the pair of pad electrodes on the front-surface side of the insulating film, wherein the thin film thermistor portion is formed in a thermistor forming region arranged on the front-end side of the insulating film, the pad electrodes are formed in an electrode forming region arranged on the base-end side of the insulating film, the front-end side of the pair of lead frames is arranged to surround the circumference of the thermistor forming region in a non-contact manner.

Non-contact temperature sensor

Provided is an infrared sensor which is capable of measuring a temperature of an object to be measured with high accuracy even when lead wires are connected to one side thereof. The infrared sensor includes an insulating film; a first and a second heat sensitive element which are provided on one face of the insulating film; a first and a second wiring film that are respectively connected to the first and the second heat sensitive element; an infrared reflecting film; a plurality of terminal electrodes; and a thermal resistance adjusting film which is provided on the other face of the insulating film, is in opposition to at least a portion of the longer one of the first or the second wiring film in wiring distance from the terminal electrodes, and is formed of a material with greater heat dissipation than the insulating film.

Infrared sensor

A lightweight infrared sensor that detects a temperature at a portion spaced apart from a circuit substrate with high accuracy, is installed on the circuit substrate easily and stably, and includes an insulating film; a first and a second heat sensitive elements are disposed on one surface of the insulating film separately; a first conductive film on the insulating film that is connected to the first heat sensitive element; a second conductive film connected to the second heat sensitive element; an infrared reflection film on the other surface of the insulating film so as to face the second heat sensitive element; a plurality of terminal electrodes formed on one end of the insulating film and fitted into an external connector; an edge reinforcing plate adhered to one end of one surface of the insulating film; and a mounting hole that is formed on the other end.

A lightweight infrared sensor which is readily and stably erected to a substrate, the infrared sensor includes an insulating film; a first and second heat sensitive element are disposed on one surface of the insulating film separately; a first and second conductive film on one surface of the insulating film and are respectively connected to the first and the second heat sensitive element; an infrared reflection film on the other surface of the insulating film so as to face the second heat sensitive element; a reinforcing plate on which a sensor part window corresponding to a sensor part is formed and which is adhered to the insulating film; and a first and a second terminal electrode are respectively connected to the first and the second wiring film and formed on the edge of the insulating film.

To provide a ferrite thin film-forming composition material that is a composition material for forming a ferrite thin film by using the sol-gel method which can form a thin ferrite thin film having a uniform thickness and, furthermore, has excellent long-term storage stability, a method of forming a ferrite thin film using the above composition material, and a ferrite thin film formed by using the above method. A ferrite thin film-forming composition material is a composition material for forming a NiZn ferrite, CuZn ferrite, or NiCuZn ferrite thin film by using a sol-gel method, in which the composition material is formed by dissolving metallic raw materials in a solvent including acetonitrile, and the fraction of acetonitrile is 30 mass % to 60 mass % with respect to 100 mass % of the composition material.

Ferrite thin film-forming composition material, method of forming ferrite thin film, and ferrite thin film formed using the same

An infrared sensor allows for a large temperature difference between a temperature sensor for the detection of infrared rays and a temperature sensor for temperature compensation; a reduction in size; and a low manufacturing cost. The infrared sensor comprises: an electrical insulating film sheet; first temperature sensor and second temperature sensor which are provided on one side of the electrical insulating film sheet, and are located at a distance from each other; first foil conductor patterns formed on one side face of the electrical insulating film sheet, and are connected to the first temperature sensor; second foil conductor patterns formed on the one side of the electrical insulating film sheet, and are connected to the second temperature sensor; and an infrared reflector film provided on the other side of the electrical insulating film sheet, and is opposite the second temperature sensor across the electrical insulating film sheet.

Infrared sensor and a circuit board equipped therewith

An infrared sensor comprises: an electrical insulating film sheet; first and second temperature sensor devices which are provided on one side of the electrical insulating film sheet, and are located at a distance from each other; a pair of contact electrodes, with which the first and second temperature sensor devices are attached respectively, formed on one side of the electrical insulating film sheet; an infrared absorbing film provided on the other side of the electrical insulating film sheet opposite the first temperature sensor device; and an infrared reflector film provided on the same side as the infrared absorbing film opposite the second temperature sensor device. The first and second temperature sensor devices respectively comprise: a thermistor element; and a pair of electrode layers, in which one of them is in contact with the contact electrode, formed both on the upper and lower surfaces of the thermistor element.

The present invention provides an audio/visual data communication system including an audio/visual data reproducing device capable of changing the type of data to be transmitted. Further, the present invention provides an audio/visual data transmitting device and an audio/visual data reproducing device forming the audio/visual data communication system. An audio data reproducing speakerincludes an instruction input unitthat inputs an instruction to change data transmitted from an audio data transmitting device, a message generating unitthat generates a message for requesting to change data on the basis of the instruction, and a message transmitting unitthat transmits the message. The audio data transmitting device includes a message receiving unit that receives the message transmitted from the message transmitting unit, a data setting unit that sets data on the basis of the message, a data generating unit that generates transmission data on the basis of the data set by the data setting unit, and a data transmitting unit that transmits the transmission data.

Audio/visual data communication system, audio/visual data transmitting device, and audio/visual data reproducing device

A mobile station of a two-frequency simplex radio communication system, in which communication between a base station and each mobile station is performed in such a manner that the base station continuously transmits packet data whereas each mobile station transmits burst data. The mobile station includes a radio wave propagation path condition detector for detecting the condition of a radio wave propagation path used for communication, and a communication control circuit which, when it is determined based on the condition of the radio wave propagation path detected by the radio wave propagation path condition detector, that transmission or reception timing cannot be obtained within a predetermined period of time, adaptively selects a transmission mode and notifies the base station of the selected transmission mode so as to receive data which is transmitted from the base station after the notification. This makes it possible to perform communication while maintaining a high transmission efficiency without having to perform a complicated process which needs a large amount of calculations.

Radio communication system and computer program product for controlling an operation of the radio communication system

A communication system and a communication method arranged to obtain a diversity effect in mobile communication, to reduce the influence of multipath interference, fading or the like, to perform comparatively simple information communication such as message communication with improved reliability, and to achieve effective utilization of frequencies. A plurality of base stations having receivers are provided around an urban area within base station zones. The base stations repeatedly transmit the same message data. Receiving repeaters are provided in the urban area and small or medium suburban zones. Each receiving repeater relays a signal from a small mobile terminal via an Internet network if the output level of the mobile terminal is so low that direct transmission to one of the base stations is impossible. A 25 kHz frequency band is divided into four narrower bands of 6.25 kHz in one of the embodiments. Of frequencies f , f , f , and f in these bands, frequencies f to f are used for &ldquo;down data transmission&rdquo; from the base stations to a mobile terminal while f is used for &ldquo;up data transmission&rdquo; from the mobile station to one or more of the base stations.

Communication system and communication method with diversity features

A method of checking and acknowledging reception of a message in a two-way radio communication system without causing a reduction in the efficiency of processing the message, a storage medium on which a reception checking and acknowledging program is stored for use in the two-way radio communication system, and a two-way radio communication system and a base station for use in the two-way radio communication system is provided. If message data transmitted by a terminal device is received by a base station via a relay station and an Internet network, the base station generates reception acknowledgment data and transmits it in such a manner that when downstream message data is transmitted toward a plurality of terminal devices, the above-described reception acknowledgment data is added to the downstream message data and the resultant data is transmitted to the plurality of terminal devices.

Growing community of inventors

Naka, Japan

Kenzo Nakamura