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Hachiga
Hitoshi Hachiga, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20090195334 | HIGH FREQUENCY MODULE PROVIDED WITH POWER AMPLIFIER - The present invention is provided with a high frequency module comprising a multilayered substrate, a power amplifier IC mounted on the upper surface of the multilayered substrate, first and second filters disposed substantially directly below the power amplifier IC in an inner layer of the multilayered substrate, and coupling-reducing ground vias disposed between the first filter and the second filter. At least the first filter is disposed substantially directly below the power amplifier IC. The coupling-reducing ground vias double as thermal vias for dissipating heat generated by the power amplifier IC. | 08-06-2009 |
Masatsugu Hachiga, Gotenba-City JP
| Patent application number | Description | Published |
|---|---|---|
| 20090191768 | TERMINALS AND A TERMINAL CONNECTING STRUCTURE - In terminals ( | 07-30-2009 |
Shouji Hachiga, Fukushima JP
| Patent application number | Description | Published |
|---|---|---|
| 20080206497 | METHOD OF MANUFACTURING SLEEVE FOR FLUID-DYNAMIC BEARING AND SLEEVE MANUFACTURED BY THE METHOD - A sleeve for a fluid-dynamic bearing is manufactured by molding to obtain a molded part, degreasing the molded part to obtain a degreased part, and sintering the degreased part. The molding includes placing a resin core having protrusions on an outer circumference thereof for transferring and forming dynamic-pressure generating grooves on the sleeve into a mold having a cavity corresponding to a shape of the sleeve, and injecting a molding material prepared by mixing a binder and metal or ceramic powders. The degreasing includes preparatory degreasing the molded part to remove a portion of the binder, and further degreasing the molded part, from which the portion of the binder is removed, by heating the molded part in a sintering furnace to thermally decompose the residual portion of the binder and the core. The sintering includes further heating the degreased part to sinter the metal powders or the ceramic powders. | 08-28-2008 |
Tadashi Hachiga, Toyama JP
| Patent application number | Description | Published |
|---|---|---|
| 20100280398 | LASER DOPPLER BLOOD FLOW MEASURING METHOD AND DEVICE - [Subject] To provide laser Doppler blood flow measuring method and device which achieve multi-dimensional measurement efficiently at a high degree of accuracy over a wide range with a simple optical system and device. | 11-04-2010 |