Nippon Sheet Glass Company, Limited

Honda Motor Co., Ltd.

Alps Electric Co., Ltd.

Fujitsu Ten Limited

Ts Tech Co., Ltd.

Hirose Electric Company, Ltd.

Hiroshi Iijima

Hideaki Oshima

Satoru Komatsu

Hiroshi Kuribayashi

Tomoyuki Fukumaru

Harunori Murakami

Ryokichi Doi

Tatsuo Matsushita

Masaru Maeda

Norio Tanaka

Tomoki Ikeda

Kaoru Sakurai

Masashi Nakagawa

Naofumi Shiraishi

Eiichiro Kawasaki

Jun Hasegawa

Kensaku Sato

Takuya Ikeda

Yoshiyuki Matsumoto

Tatsuaki Taniguchi

Kazuo Takayama

Kazuo Shigeta

Hidetoshi Oka

Hitoshi Kakizawa

Yuji Baba

Seiji Katakura

Kouichi Chikaishi

Hajime Murakami

Shouhei Ohara

Koji Matsuda

An on-board antenna device comprises: a radiation element () formed on an inner-surface of a widow glass () for a vehicle (); a base plate () fixed on the inner-surface of the widow glass () so as to surround the radiation element (); a circuit board () having a conductive layer in a surface () thereof, which is opposed to the radiation element (), and a component mounting surface electrically connected to the radiation element () in the other surface () thereof; and a housing () assembled onto the base plate (), and the circuit board () being contained therein; wherein the circuit board () has a cutout portion () to incorporate a connector () for a transmission line connection.

On-board antenna device

A heating line pattern structure is provided, in which the effect of the heating lines of a defogger on an antenna for a TV broadcast especially for a digital TV broadcast may be decreased. The defogger is structured by arranging heating lines between bus bars on both sides. The portion of an uppermost heating line in proximity to the monopole antenna are folded rectangularly at a regular interval to form a meander shape. One lateral heating line is extended under the meander-shaped heating line portion, and is connected to a vertical heating line to which four lateral heating lines are connected together.

Heating line pattern structure of defogger formed on rear window glass panel of motor vehicle and rear glass panel

An on-board antenna device, comprises a radiation element () formed on an inner-surface of a window glass () for a vehicle (), a base plate () having an opening, the base plate () being fixed on the inner-surface of the window glass () so as to surround the radiation element (), and a housing () assembled onto the base plate (), the housing () having an opening surrounding the radiation element, wherein the base plate has four leakage prevention walls (and) and each of four leakage prevention walls (and) has a surface substantially parallel to each of four sidewalls (and) of the housing ().

Rear glass is provided with a patch-like radiation conductor and a first ground conductor surrounding the patch-like radiation conductor. An electronic circuit unit includes a base plate fixed on the rear glass; a frame body which houses a circuit substrate and is fixed on the base plate; and a cover for covering the frame body. One surface of the circuit substrate defines a component-holding surface which is connected with a second end of a feeder cable connected with the radiation conductor and the first ground conductor. The other surface of the circuit substrate is provided with a second ground conductor to function as a radio-wave reflective surface. The radio-wave reflective surface faces the radiation conductor and the first ground conductor disposed on the rear glass such that the radio-wave reflective surface is separated from the radiation conductor and the first ground conductor by a predetermined distance.

In-vehicle antenna apparatus

A feeding structure of an antenna device formed on a window glass panel of a motor vehicle is provided. A first feeding element opposing to the hot antenna element of the planar antenna and second feeding element opposing to the ground antenna element are located in the module mounted on the window glass panel so as to cover the planar antenna.

Feeding structure of antenna device for motor vehicle and antenna device

A vehicular antenna apparatus includes a radiating conductor directly patterned on a glass surface of a vehicle, a base plate fixed to the glass surface, a frame screwed to the base plate, a power feeding substrate and a circuit substrate accommodated and held in the frame, a connecting small substrate electrically connecting both substrates, and a cover attached on the top of the frame. A patterned surface of the power feeding substrate is close to and faces the glass surface, and thereby indirect power feeding can be performed. Both ends of the connecting small substrate are received in connecting holes. A power feeding pattern and a preamplifier circuit are connected via a microstrip line.

Vehicular antenna apparatus

An on-board antenna includes a radiation element provided on a dielectric substrate, a grounding conductor surrounding a periphery of an outer edge portion of the radiation element at a position spaced away outwardly from the outer edge portion, and a conductive member provided on the surface at a position spaced away outwardly from an outer edge portion of the grounding conductor.

On-board antenna

A vehicle seat includes a base frame supported on a base, a seat cushion provided on the base frame, and a seat back, wherein the seat back is structured so that a plurality of seat back pieces are arranged in the up-and-down direction with a predetermined space; and the base frame or a lowermost seat back piece is attached with an attachment member that stands so as to be elastically deformed and be able to be twisted around an axis, and the plurality of seat back pieces are attached to the attachment member, respectively.

Vehicle seat

An antenna device is provided in which a common mode current does not flow in a coaxial cable. The coaxial cable is uprighted at the end of the base plate and bent toward the notched portion of the cover so that the connector reaches to the notched portion. A short-circuit stub structure is provided in such a manner that a part of the outer sheath of the coaxial cable is removed to expose the outer conductor and a ring-shaped metal terminal is crimped to the exposed outer conductor. The ring-shaped metal terminal is fixed by using a screw to an acceptance member made of a stainless steel provided on the base plate. The terminal is provided at the position within 0.25&#x3bb; from the feeding point of the ground antenna element.

Antenna device

A vehicle-mounted antenna of the present invention includes a grounding conductor arranged on a vehicle interior side surface of a rear window that inclines at a predetermined inclination angle with respect to the horizontal plane, a slot and a U-shaped auxiliary slot formed in the grounding conductor, and an electrically conductive reflecting plate that protrudes in a direction that forms a predetermined angle with respect to the surface of the grounding conductor so as to slope downward towards the front of the vehicle from a location shifted downward in the vertical direction (front of the vehicle) from the slot on the surface of the grounding conductor at a location close to the slot.

Vehicle-mounted antenna

A glass antenna for vehicles comprising a slot antenna constructed without using an electrical conductive transparent film is provided. A glass antenna for vehicles formed on a window glass for receiving a digital TV band comprises a rectangular slot antenna one side thereof is formed by an edge of a vehicle body surrounding the window glass and residual three sides are formed by a silver printed line formed on the window glass, both ends of the silver printed line being connected to the vehicle body by means of lead wires, respectively, and a feeder for supplying electric power to the slot antenna.

Glass antenna and glass antenna system for vehicles

Since the invention makes a structure in which bent portionsA,B of grounding piecesA,B of a center conductor side grounding portionand bent portionsA,B of grounding piecesA,B of an outer conductor side grounding portionare connected to each other by joint portionsA,B, solders contact portionsA,B andA,B of the center conductor side grounding portionand the outer conductor side grounding portionrespectively to a center conductor grounding side conductor portion F and an outer conductor grounding side conductor portion G of an antenna element of a glass board face, and then breaks off the joint portionsA,B and thereby separates the center conductor side grounding portionand the outer conductor side grounding portionfrom each other, the invention makes it possible to stably attach a center conductor and an outer conductor of the fore-end portion of a coaxial cable to the same positions as determined in a terminal for coaxial cable and to accurately and stably mount the center conductor and the outer conductor on the same positions as determined also with respect to the interval between them on a mounted object.

Terminal for coaxial cable, and attachment structure and attachment method for attaching the same terminal for coaxial cable

An on-board antenna including a radiation element provided on a dielectric substrate, and a grounding conductor surrounding a periphery of an outer edge portion of the radiation element at a position spaced away outwardly from the outer edge portion, wherein the radiation element has an inner cut-out portion so that the surface of the dielectric substrate to be exposed therethrough.

An on-board antenna having a grounding conductor provided on a surface of a first dielectric substrate and an antenna element including a first radiation element provided on the surface of the first dielectric substrate and a second radiation element provided on the first radiation element so as to protrude from a surface of the first dielectric substrate and extend in a vertical direction.

A glass antenna system for vehicles to receive AM and FM bands is provided. An electrically conductive transparent film is formed on a side glass. A silver printed line have a wide width is formed around the electrically conductive transparent film. A loop-shaped silver printed line is provide surrounding the film, which is capacitively coupled to the body. In this manner, an opening is formed in a space between the silver printed line and the electrically conductive film. An electrically shorted portion is provided between the silver printed line and the electrically conductive film. A coaxial feeder for AM/FM is provided. A central conductor of the feeder is connected to the silver printed line and the outer conductor to the body.

Growing community of inventors

Osaka, Japan

Hiroshi Iijima