Central Glass Company, Limited

Sumida Corporation

Hiroyuki Fujii

Tohru Hirotsu

Akihiro Noguchi

Junichiro Ieiri

Mitsuhisa Maegawa

Masaki Saito

Nobuhiro Okada

Tokio Tsukada

Kazuya Nishikawa

Yoji Nagayama

Shingo Tadokoro

Kanya Hirabayashi

Tomoko Mito

Kazuyoshi Morita

Hideaki Sueta

Masashi Uemura

Tadashi Tanaka

Toru Nozaki

A method for producing coated water-soluble particles in a manner to form two or more coating layers on surfaces of the water-soluble particles, characterized by including: a step A wherein after supplying a first coating material that contains a polyol component and an isocyanate component, a second coating material is additionally supplied to surfaces of first coating bodies that have coating layers formed of the first coating material that has not been sufficiently cured, so that second coating bodies that are provided with coating layers of the second coating material are obtained.

Method for producing coated water-soluble particles

An antenna for vehicle, i.e. a wire antenna being arranged on the surface of the window glass of an automobile or the like, comprising a first element having a length extending from a first feeding point equal to any one of &#xbc;, &#xbe; or 5/4 of the wavelength of a transmitting/receiving radio wave, and a second closed loop element having a length extending from a second feeding point, provided in the vicinity of the first feeding point, while surrounding the first element not shorter than one wavelength of the transmitting/receiving radio wave.

Antenna for vehicle

A glass antenna for a vehicle includes: a window to be disposed along a metal window frame. The window includes a first wire, a second wire and a heating conductor wire. The first wire is capacitive-coupled with a part of the metal window frame. The second wire is capacitive-coupled with the heating conductor wire. The first wire and the second wire are connected with each other.

Glass antenna for vehicle

In an antenna coil device, a coil portionhaving a lead wirewound around a magnetic coreis mounted on a casemade of plastic resin, and on one side of the case, terminal boardsandthat electrically connect one end and the other end of the lead wireof the coil portionto an external device are placed in a protruding manner. A through holeD is provided in an inserting end portionC of the terminal board, a through holeH is provided in a central flat portionG of the terminal board, and the two through holesD andH are placed opposite each other. This reduces stray capacitance caused between the two terminal boardsandconnected to both ends of the coil portion, and allows a self resonance frequency band where an impedance is equal to or above a predetermined value to be shifted to a high frequency side.

Antenna coil device

A vehicular rear glass antenna system includes a rear window glass sheet, a defogger formed on a lower part of the glass sheet, and an antenna formed on an upper part of the glass sheet. This antenna includes (a) a feed point located at a position that becomes adjacent to a top or side member of a metal rear window frame of a vehicle body; (b) a horizontal strip that is connected to the feed point and becomes adjacent to the top member of the rear window frame; (c) a vertical strip downwardly extending from an end point of the horizontal strip; (d) a first return strip horizontally extending from a lower end of the vertical strip toward the feed point; and (e) a second return strip horizontally extending from a middle point of the vertical strip toward the feed point.

Glass antenna system for vehicles

An antenna system for a vehicle is provided. The antenna comprises an antenna disposed on a window glass and having a feed point, a matching circuit connected to the feed point, and a coaxial cable connecting between the matching circuit and the radio receiver. The matching circuit includes a parallel circuit having a damping resistor, a first coil and a first capacitor. The matching circuit further includes a second coil and a second capacitor connected in series between an output side of the parallel circuit and a ground such that, assuming that MF1 is a lower limited frequency of medium-frequency (MF) broadcast waves and MF2 is an upper limited frequency of the MF broadcast waves, a receiving sensitivity of the antenna system has local maximum points which are present at a frequency F1 in the range from (MF1-170) to MF1 KHz and at a frequency f2 in the range from (MF2-230) to MF2 KHz, respectively, and a local minimum point which is present at a frequency f0 smaller than f1 and equal to or larger than 50 KHz.

There is provided a glass antenna system which is attached to a vehicle rear window glass for receiving FM and AM radio broadcast waves. The glass antenna system comprises a defogging heater element disposed on the rear window glass in a way as to leave a space therearound. The defogging heater element includes a plurality of heating strips and a pair of bus bars. The glass antenna system further comprises an antenna having a feed point disposed in a widthwise marginal area of said space under the heater element, a first vertical conductive strip disposed in an area of said space between one of the bus bars and a lateral edge of the window glass and connected at a lower end thereof to the feed point, a horizontal conductive strip disposed in an area of the space above the heater element and connected at one of opposite ends thereof to an upper end of the first vertical conductive strip, and a second vertical conductive strip connected at an upper end thereof to the other of the opposite ends of the horizontal conductive strip and extending downwardly therefrom in a way as to intersect at right angles while being electrically connected to the heating strips.

A glass antenna attached to a vehicle side window glass for receiving radio waves such as FM radio broadcast waves and AM radio broadcast waves is provided. The glass antenna comprises a feed point disposed adjacent one of the lateral edges of the window glass, a first vertical element extending upwardly from the feed point along one of the lateral edges to a place adjacent the upper edge of the window glass, a first horizontal element extending from the first vertical element along the upper edge to a nearly central portion of the window glass, a second vertical element extending from the first horizontal element through the nearly central portion to a place adjacent the lower edge of the window glass, a second horizontal element extending from the second vertical element along the lower edge to a place adjacent the other of the lateral edges, and a third vertical element extending upwardly from the second horizontal element along the other of the lateral edges of the window glass.

Vehicle side window glass antenna for radio broadcast waves

The invention provides a vehicle window glass antenna for transmission and reception of ultrashort waves used for mobile phones and radios for personal or business use. The antenna forms two classes. An antenna under one class comprises a first element consisting of a vertical conductive strip and a horizontal conductive strip connected to an end of the vertical conductive strip, and a second element consisting of a vertical conductive strip and a pair of horizontal conductive strips one of which is connected to an end of the vertical conductive strip of the second element. The horizontal conductive strips of the second element are disposed adjacently above and under the horizontal conductive strip of the first element so as to wrap around an end portion of the first element. The antenna under another class comprises a first element consisting of a first horizontal conductive strip having a feed point portion, a first vertical conductive strip connected to an end of the first horizontal conductive strip, a second horizontal conductive strip connected at an end to the first vertical conductive strip and extending away therefrom to have another end, a second vertical conductive strip connected to the other end of the second horizontal conductive strip, and a third vertical conductive strip located adjacent to the second vertical conductive strip and connected to the first horizontal conductive strip, and a second element similar to that of the antenna under the aforementioned class.

Glass antenna for automotive vehicles

An antenna is attached to a rear window glass of an automobile and arranged in a space between a defogging heater element and a lower edge of the window glass. According to an aspect of the present invention, the antenna comprises a plurality of horizontal conductive strips having the length of 0.02.lambda..multidot.f.sup.1/2 (1.+-.0.2), adjacent two of which are connected at opposite ends so as to constitute a rectangular loop. The number of the horizontal conductive strips is in the range of 2 to 4. According to another aspect of the present invention, the antenna comprises a main element having two horizontal conductive strips and a vertical strip connecting the horizontal strips at one ends located nearer to a widthwise center of the space, and an auxiliary element having a conductive strip made up of a vertical portion extending upward from upper one of the horizontal conductive strips of the main element to have an upper end and a horizontal portion extending between the upper end of the vertical portion and a feed point located at a widthwise marginal area of the space.

Automotive window glass antenna

An antenna attached to a window glass for transmitting and receiving ultrashort waves includes a primary antenna having a first feed point which is electrically connected therewith, a secondary antenna having a second feed point which is electrically connected therewith. A feeder is a coaxial cable having inner and outer conductors, an insulator disposed therebetween, and an outer cover covering the outer conductor. A first terminal has a first base portion which is electrically connected to the first feed point, and a supporting portion for supporting thereon the inner conductor of the feeder so as to achieve an electrical connection between the first terminal and the inner conductor. A second terminal has a second base portion which is electrically connected to the second feed point, a first holding portion for holding the outer cover of the feeder, and a second holding portion for holding the outer conductor of the feeder so as to achieve an electrical connection between the second terminal and the outer conductor.

Growing community of inventors

Matsusaka, Japan

Hiroyuki Fujii