Tadashi Watanabe
Tadashi Watanabe, Yamanashi JP
Patent application number | Description | Published |
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20080211052 | FIELD EFFECT TRANSISTOR AND METHOD FOR FABRICATING THE SAME - A method for fabricating a field effect transistor includes: forming an insulating film provided on a semiconductor layer, the insulating film having an opening via which a surface of the semiconductor layer is exposed and including silicon oxide; forming a Schottky electrode on the insulating film and in the opening, the Schottky electrode having an overhang portion and having a first contact layer that is provided in a region contacting the insulating film and contains oxygen, and a second contact layer that is provided on the first contact layer and contains a smaller content of oxygen than that of the first contact layer; and removing the insulating film by a solution including hydrofluoric acid. | 09-04-2008 |
20110215383 | FIELD EFFECT TRANSISTOR AND METHOD FOR FABRICATING THE SAME - A method for fabricating a field effect transistor includes: forming an insulating film provided on a semiconductor layer, the insulating film having an opening via which a surface of the semiconductor layer is exposed and including silicon oxide; forming a Schottky electrode on the insulating film and in the opening, the Schottky electrode having an overhang portion and having a first contact layer that is provided in a region contacting the insulating film and contains oxygen, and a second contact layer that is provided on the first contact layer and contains a smaller content of oxygen than that of the first contact layer; and removing the insulating film by a solution including hydrofluoric acid | 09-08-2011 |
Tadashi Watanabe, Kamiina JP
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20110279901 | MULTILAYER FILTER AND FLUORESCENT MICROSCOPE USING THE SAME - A multilayer filter includes a multilayer part in which a layer composed of a first material and a layer composed of a second material having a refractive index different from that of the first material are stacked in an alternating pattern. The multilayer part has a cyclic film-thickness structure in which three or more layers are defined as one cycle. | 11-17-2011 |
Tadashi Watanabe, Komaki-Shi JP
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20130042831 | GLOW PLUG FITTED WITH COMBUSTION PRESSURE DETECTION SENSOR - A glow plug in which a convex portion ( | 02-21-2013 |
20150047592 | GLOW PLUG - A glow plug includes a cylindrical housing, a rod-shaped heater, a membrane portion, and a pressure sensor. The cylindrical housing extends along an axial direction. The rod-shaped heater extending along the axial direction is displaced along the axial direction and has one end portion disposed within the housing, and an other end portion which is exposed from the housing. The membrane portion connects together the heater and the housing and has a multi-layer construction which has a first layer and a second layer of which at least part is positioned nearer to the other end portion in the axial direction of the heater than the first layer. The pressure sensor measures a pressure within a combustion chamber in which the other end portion is disposed by making use of a displacement of the heater. A thickness of the second layer is larger than a thickness of the first layer. | 02-19-2015 |
Tadashi Watanabe, Komaki-City JP
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20130269640 | GLOW PLUG WITH COMBUSTION PRESSURE SENSOR - A glow plug including a substantially cylindrical housing extending in an axial direction; a rod-shaped heater unit having a front end protruding from the front end of the housing and movable in the axial direction; a connecting member connecting the heater unit to the housing within the housing and allowing the heater unit to move in the axial direction; and a pressure sensor that detects pressure received by the heater unit. The heater unit has a large-diameter portion at the rear end thereof and a small-diameter portion frontward of the large-diameter portion and having a diameter smaller than the diameter of the large-diameter portion. The connecting member connects the small-diameter portion of the heater unit to the housing within the housing. | 10-17-2013 |
20130269641 | GLOW PLUG WITH COMBUSTION PRESSURE SENSOR - A glow plug wherein a combustion gas prevention wall ( | 10-17-2013 |
20130291820 | GLOW PLUG WITH COMBUSTION PRESSURE SENSOR - A glow plug with a combustion pressure sensor is improved in airtightness between the same and a combustion chamber. The glow plug | 11-07-2013 |
Tadashi Watanabe, Yokohama-Shi JP
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20150179429 | METHOD FOR TREATING SURFACE OF SEMICONDUCTOR LAYER, SEMICONDUCTOR SUBSTRATE, METHOD FOR MAKING EPITAXIAL SUBSTRATE - A surface treatment method for a semiconductor layer includes growing a first layer on a substrate in a growth reactor, the first layer consisting of one of gallium nitride, aluminum gallium nitride and indium aluminium nitride; growing a second layer of gallium nitride on a surface of the first layer, the gallium nitride of the second GaN layer having a composition ratio of gallium to nitrogen larger than 2; taking the substrate out of the growth reactor after growing the second layer; and removing the second layer after taking the substrate out of the growth reactor. | 06-25-2015 |