Yoshiki Murayama
Yoshiki Murayama, Tottori-Shi JP
Patent application number | Description | Published |
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20100303116 | SEMICONDUCTOR LASER DEVICE AND OPTICAL APPARATUS EMPLOYING THE SAME - This semiconductor laser device includes a semiconductor element layer having an active layer and a cavity facet and a facet coating film arranged on the cavity facet, while the facet coating film includes an oxide film made of hafnium silicate (HfSiO) or hafnium aluminate (HfAlO), and the facet coating film further has a nitrogen-containing film, in contact with the cavity facet, between the cavity facet and the oxide film. | 12-02-2010 |
20120093186 | NITRIDE-BASED SEMICONDUCTOR LASER ELEMENT AND OPTICAL APPARATUS - This nitride-based semiconductor laser element includes a semiconductor element layer made of a nitride-based semiconductor having an emitting-side cavity facet and a reflecting-side cavity facet, and a facet coating film formed on the emitting-side cavity facet. The facet coating film has a first dielectric film made of aluminum nitride formed in contact with the emitting-side cavity facet, a second dielectric film made of aluminum oxynitride formed on a side of the first dielectric film opposite to the emitting-side cavity facet, a third dielectric film made of aluminum oxide formed on a side of the second dielectric film opposite to the first dielectric film, a fourth dielectric film made of aluminum oxynitride formed on a side of the third dielectric film opposite to the second dielectric film, and a fifth dielectric film made of aluminum oxide formed on a side of the fourth dielectric film opposite to the third dielectric film. | 04-19-2012 |
Yoshiki Murayama, Osaka JP
Patent application number | Description | Published |
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20100052469 | ELECTROSTATIC ACTING DEVICE - An electrostatic acting device in which leakage of charge from an electret film is suppressed. The electrostatic acting device comprises a movable electrode section ( | 03-04-2010 |
20100084861 | BITE TYPE PIPE COUPLING, REFRIGERATION DEVICE, AND WATER HEATING DEVICE - In a center portion of the coupling body of a bite type pipe coupling, an insertion port for receiving a connector pipe is formed at an end that faces a coupling member. In the center portion, an insertion port is formed at an end located opposite to the end that faces the coupling member. An apparatus-side pipe is inserted into and brazed to the insertion port. A thin wall portion is formed in an outer circumferential wall portion of the entrance of the insertion port for receiving the apparatus-side pipe. The outer diameter of the thin wall portion is smaller than that of the coupling body. The thin wall portion is formed in a range extending from the entrance of the insertion port to a position that is located closer to the entrance than the inner end of the insertion port and is located in the vicinity of the inner end. | 04-08-2010 |
20100109472 | ELECTROSTATIC ACTING DEVICE - An electrostatic acting device in which leakage of charge from an electret film is suppressed. The electrostatic acting device comprises a movable electrode section ( | 05-06-2010 |
20100118908 | SEMICONDUCTOR LASER DEVICE - A semiconductor laser device capable of improving the reliability of the laser device is obtained. This semiconductor laser device ( | 05-13-2010 |
Yoshiki Murayama, Hirakata-Shi JP
Patent application number | Description | Published |
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20080265686 | ELECTRET DEVICE AND ELECTROSTATIC OPERATING APPARATUS - An electret device includes an electret film capable of storing charges and a protective film formed so as to substantially surround a side end surface of the electret film. | 10-30-2008 |
20090058224 | ELECTROSTATIC ACTUATOR AND POWER GENERATOR - This electrostatic actuator includes an electret film and a conductor layer formed on the electret film, and the conductor layer is so formed as to have a sectional shape reduced in width upward from the side closer to the electret film. | 03-05-2009 |
20090079295 | ELECTROSTATIC GENERATOR - An electrostatic generator includes a substrate, an electrode formed on or in a surface of the substrate, an electret film provided so as to be opposed to the electrode and an insulating film on an electrode side formed on a surface of the electrode on a side opposed to the electret film. | 03-26-2009 |
20090323750 | SEMICONDUCTOR LASER DEVICE AND METHOD OF MANUFACTURING THE SAME AS WELL AS OPTICAL PICKUP - A semiconductor laser device includes a semiconductor device layer having an emission layer and formed with a current path on a semiconductor layer in the vicinity of the emission layer, a current blocking layer formed in the vicinity of the current path, and a heat-radiation layer formed to be provided at least in the vicinity of a region formed with a cavity facet of the semiconductor device layer and be located above the current path, and having thermal conductivity larger than that of the current blocking layer. | 12-31-2009 |
20100079031 | ELECTROSTATIC ACTUATOR AND POWER GENERATOR - This electrostatic actuator includes an electret film and a conductor layer formed on the electret film, and the conductor layer is so formed as to have a sectional shape reduced in width upward from the side closer to the electret film. | 04-01-2010 |
20100111130 | SEMICONDUCTOR LASER DEVICE AND METHOD OF MANUFACTURING THE SAME - A semiconductor laser device includes a first cavity facet formed on an end of the semiconductor element layer on a light-emitting side of a region including the light emitting layer, a first insulating film, made of AlN, formed on a surface of the first cavity facet and a second insulating film, made of AlO | 05-06-2010 |
20130070801 | SEMICONDUCTOR LASER DEVICE AND METHOD OF MANUFACTURING THE SAME - A semiconductor laser device includes a first cavity facet formed on an end of the semiconductor element layer on a light-emitting side of a region including the light emitting layer, a first insulating film, made of AlN, formed on a surface of the first cavity facet and a second insulating film, made of AlO | 03-21-2013 |
Yoshiki Murayama, Sakai-Shi JP
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20100090457 | FLARELESS-TYPE PIPE FITTING, REFRIGERATING DEVICE, AND WATER-HEATING DEVICE - In a flareless-type pipe joint, a pressing surface | 04-15-2010 |
Yoshiki Murayama, Anpachi-Gun JP
Patent application number | Description | Published |
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20080258565 | ELECTRET DEVICE AND ELECTROSTATIC INDUCTION CONVERSION APPARATUS COMPRISING THE SAME - An electret device includes an electret film into which charges are injected and a barrier film provided on a surface of the electret film and having an electron affinity smaller than the electron affinity of the electret film. | 10-23-2008 |
20100008164 | MEMORY - A memory capable of suppressing reduction of data determination accuracy is provided. This memory includes a memory cell connected to a bit line for holding data and a bipolar transistor whose base is connected to the bit line. In data reading, the memory reads the data by amplifying a current, corresponding to the data of the memory cell, appearing on the bit line with the bipolar transistor. | 01-14-2010 |