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Keiji Takagi
Keiji Takagi, Fukushima-Ken JP
| Patent application number | Description | Published |
|---|---|---|
| 20100097246 | INPUT DEVICE AND KEYBOARD DEVICE HAVING ILLUMINATION FUNCTION - An input device includes a plurality of manipulation portions; an input function portion manipulated by the manipulation portions to perform an input function; a light guiding sheet facing the rear side of the plurality of manipulation portions; and a light source applying light into the light guiding sheet, wherein a rear surface opposite to a front surface of the light guiding sheet facing the manipulation portions is provided with a plurality of concave portions which is depressed to the inside of the light guiding sheet, wherein each concave portion has a circular opening and an inner surface which is a smooth concave curve surface, and wherein light propagated through the inside of the light guiding sheet is reflected by the inner surface toward the inside of the light guiding sheet, and the light is applied from the front surface of the light guiding sheet to the manipulation portions. | 04-22-2010 |
Keiji Takagi, Iwakura-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20080272855 | LAMINATE TYPE BAND PASS FILTER AND DIPLEXER USING THE SAME - It is possible to generate an additionally attenuation pole in a laminate type band pass filter without adding an attenuation circuit and improve the attenuation characteristics of the laminate type band pass filter by independently controlling the frequencies of the attenuation poles. A diplexer is realized by using at least such a filter. The laminate type band pass filter includes a plurality of first resonators adapted to resonate in a predetermined pass band and arranged in a laminate, the first resonators being mutually electromagnetic field coupled, each of the first resonators having a first inductor conductor, a second inductor conductor and a conductor to be capacitive-coupled to a grounding conductor, the second inductor conductor and the conductor to be capacitive-coupled to the grounding conductor forming a second serial resonator in each of the first resonators, the notch frequency of the second serial resonator being set in a frequency band higher than the resonance frequency band of the first resonator. | 11-06-2008 |
Keiji Takagi, Otsu-Shi JP
| Patent application number | Description | Published |
|---|---|---|
| 20110177290 | GLASS ROLL, DEVICE FOR PRODUCING GLASS ROLL, AND PROCESS FOR PRODUCING GLASS ROLL - Provided is a package form, with which cleanness of a glass film is ensured and the glass film is prevented from breaking. The package form is effective in minimizing the number of glass film processing steps to be performed before packaging and after unpackaging. As the package form for a glass film, provided is a glass roll ( | 07-21-2011 |
| 20110177325 | GLASS ROLL, DEVICE FOR PRODUCING GLASS ROLL, AND PROCESS FOR PRODUCING GLASS ROLL - To provide a glass roll capable of reliably preventing a glass film from breaking from an end surface of the glass film as an origin of breakage, a glass roll ( | 07-21-2011 |
| 20110236633 | Apparatus for manufacturing glass plate and method of manufacturing glass plate - Provided is a thin glass plate manufacturing apparatus by: pouring a molten glass (G) into an overflow trough ( | 09-29-2011 |
| 20110244207 | THIN GLASS PLATE AND METHOD OF MANUFACTURING THE SAME - Provided is a method of manufacturing a thin glass plate, including: pouring a molten glass (Gm) into an overflow groove ( | 10-06-2011 |
Keiji Takagi, Shiga JP
| Patent application number | Description | Published |
|---|---|---|
| 20110177347 | GLASS ROLL - Provided is a glass roll utilizing a flanged roll core, and reliably inhibiting a glass film from breaking from an end portion in a width direction thereof as an origin of breakage. A glass roll ( | 07-21-2011 |
| 20110200812 | GLASS ROLL AND PROCESS FOR PRODUCING GLASS ROLL - Provided is a glass roll formed by winding a glass film into a roll, in which a minimum winding radius of the glass film is optimized. Thus, the glass film is reliably prevented from breaking due to static fatigue, and is able to be stored for long periods. A glass roll ( | 08-18-2011 |