| Patent application number | Description | Published |
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| 20080240179 | Two-dimensional photonic crystal surface-emitting laser - The two-dimensional photonic crystal surface emitting laser according to the present invention includes a number of main modified refractive index areas periodically provided in a two-dimensional photonic crystal and secondary structures each relatively located in a similar manner to each of the main modified refractive index areas. The location of the secondary structure is determined so that a main reflected light which is reflected by a main modified refractive index area and a secondary reflected light which is reflected by a secondary structure are weakened or intensified by interference. | 10-02-2008 |
| 20090074024 | Photonic crystal laser - A laser capable of emitting multiple laser beams is provided. A two-dimensional photonic crystal laser according to the present invention has a laminated structure including an active layer, a first photonic crystal layer having a periodic distribution of refractive index with a first period, and a second photonic crystal layer having a periodic distribution of refractive index with a second period that differs from the first period. This two-dimensional photonic crystal laser can emit a main beam traveling in a direction perpendicular to the two-dimensional photonic crystals and side beams each traveling in a direction inclined with respect to the main beam. These beams can be used, for example, in a recording/reproducing device by means of an optical disk, the main beam being used for recording/reproducing information and the side beams for following up the track. | 03-19-2009 |
| 20090135871 | Two-Dimensional Photonic Crystal Surface Emitting Laser - An objective of the present invention is to provide a laser capable of producing a radially polarized laser beam with an annular cross section. A laser oscillator | 05-28-2009 |
| 20090285255 | Two-Dimensional Photonic Crystal Surface Emitting Laser Light Source - An objective of the present invention is to provide a surface emitting laser capable of selectively generating a laser oscillation in the fundamental mode and thereby emitting a single-wavelength laser light. In a surface emitting laser including an active layer and a two-dimensional photonic crystal provided on one side of the active layer, a reflector | 11-19-2009 |
| Patent application number | Description | Published |
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| 20100192457 | METHOD FOR PRODUCING LIQUEFIED FUEL OIL USING BIOMASS AS FEEDSTOCK - An object of the present invention is to provide a method for producing a liquefied fuel oil using biomass as a feedstock, in which a relatively inexpensive liquefaction apparatus is used; a good balance is maintained between the liquefaction of water-insoluble lignin and the liquefaction of water-soluble cellulose to achieve a high yield of the liquefied fuel oil based on the biomass solids content; and the amount of ash derived from an alkali catalyst and the like is low. The method for producing a liquefied fuel oil using biomass as a feedstock is characterized by adding, to biomass comprising lignocellulose, a solvent comprising an organic solvent and having a moisture content adjusted to 10 to 25 wt %, including moisture contained in the biomass, and liquefying the biomass at a temperature of 250 to 350° C. | 08-05-2010 |
| 20100312027 | METHOD FOR PRODUCING WATER-INSOLUBLE LIQUEFIED FUEL OIL FROM BIOMASS - A method for producing a water-insoluble liquefied fuel oil containing a hydrocarbon from biomass is provided, comprising converting an oxygen-containing compound in a liquefied fuel oil obtained after liquefaction to a hydrocarbon and converting a water-soluble organic substance contained in an aqueous phase to a hydrocarbon, thereby improving the yield of the water-insoluble liquefied fuel oil. The method for producing a water-insoluble liquefied fuel oil containing a hydrocarbon comprises the steps of: subjecting a mixture that contains biomass containing lignocellulose, an organic solvent, and water to liquefaction; simultaneously with or after liquefaction, causing a mixture of the liquefied fuel oil that contains the organic solvent and an aqueous phase that contains a water-soluble organic substance to come into contact with a dehydration catalyst under pressure and then subjecting the resultant to dehydration, or causing a mixture of the liquefied fuel oil that contains the organic solvent and an aqueous phase that contains a water-soluble organic substance to come into contact with hydrogen in the presence of a hydrogenation catalyst under pressure, and then subjecting the resultant to hydrogenation; and separating a water-insoluble liquefied fuel oil from the mixture after dehydration or hydrogenation. | 12-09-2010 |
| 20120015803 | CARBON MONOXIDE REDUCTION CATALYST FOR SMOKING ARTICLES AND METHOD FOR PRODUCING THE SAME - A carbon monoxide reduction catalyst for smoking articles includes particles, 90% by volume or more of which have a particle diameter within a range of 1 to 100 μm. Each particle includes a transition metal oxide generated by heating a transition metal salt of an organic acid. | 01-19-2012 |
| 20120024303 | CIGARETTE AND METHOD FOR TREATING CIGARETTE MATERIAL - A cigarette includes a shredded tobacco rod and a cigarette paper that wraps the outer peripheral surface of the shredded tobacco rod. The shredded tobacco and/or the cigarette paper contains a transition metal salt of an organic acid. | 02-02-2012 |
