Shigeo Fujii
Shigeo Fujii, Kumagaya-Shi JP
Patent application number | Description | Published |
---|---|---|
20100047579 | COATED, FINE METAL PARTICLES AND THEIR PRODUCTION METHOD - A method for producing coated, fine metal particles comprising the steps of mixing powder comprising TiC and TiN with powder of an oxide of a metal M meeting the relation of ΔG | 02-25-2010 |
20100178510 | FINE METAL PARTICLES AND BIOMATERIAL-EXTRACTING MAGNETIC BEADS, AND THEIR PRODUCTION METHODS - Fine metal particles each comprising a magnetic metal core particle and two or more coating layers, the outermost layer among the two or more coating layers containing an oxide of silicon and aluminum at an Al/Si atomic ratio of 0.01-0.2, and a method for producing fine metal particles comprising the steps of coating each primary particle comprising a magnetic metal core particle and a first coating layer with a mixture of silicon alkoxide and aluminum alkoxide, and then hydrolyzing the silicon alkoxide and the aluminum alkoxide, thereby forming a second coating layer comprising an oxide of silicon and aluminum at an Al/Si atomic ratio of 0.01-0.2. | 07-15-2010 |
20110293940 | COATED, FINE METAL PARTICLES AND THEIR PRODUCTION METHOD - A method for producing coated, fine metal particles each having a Ti oxide coating and a silicon oxide coating formed in this order on a metal core particle by mixing powder comprising TiC and TiN with oxide powder of a metal M meeting the relation of ΔG | 12-01-2011 |
Shigeo Fujii, Kumage-Gun JP
Patent application number | Description | Published |
---|---|---|
20090068228 | METHOD OF SEPARATING PROTECTIVE COMPONENTS OF BORDETELLA PERTUSSIS - To provide a method of efficiently separate protective components of | 03-12-2009 |
20100055134 | Method of separating protective components of bordetella pertussis - To provide a method of efficiently separate protective components of | 03-04-2010 |
Shigeo Fujii, Saitama JP
Patent application number | Description | Published |
---|---|---|
20090273534 | Magnetic material antenna and ferrite sintered body - A magnetic material antenna using a ferrite sintered body comprising one or more conductors disposed at least on a surface or in internal portion of the ferrite sintered body, wherein the ferrite sintered body is a sintered body of Y-type ferrite containing BaO, CoO, and Fe | 11-05-2009 |
Shigeo Fujii, Wakayama-Shi JP
Patent application number | Description | Published |
---|---|---|
20080227370 | SUBSTRATE FOR MAGNETIC DISK - A method for manufacturing a substrate for a magnetic disk, including the steps of (a) polishing a substrate with a polishing composition A containing alumina abrasives having an average particle size of from 0.05 to 0.5 μm, and an oxidizing agent, and (b) polishing the substrate with a polishing composition B containing silica particles having an average particle size of from 0.005 to 0.1 μm; a substrate for a magnetic disk, obtainable by the method for manufacturing a substrate for a magnetic disk; and a substrate for a magnetic disk having the following surface properties of a long-wavelength waviness of 0.05 nm or more and 0.3 nm or less, and an AFM surface roughness of 0.03 nm or more and 0.2 nm or less. The substrate for a magnetic disk may be suitably used in the manufacture of a hard disk having a high recording density. Especially, a hard disk having a recording density of 50 G bits or more per square inch may be industrially manufactured. | 09-18-2008 |
20080280538 | Polishing composition - The present invention provides a polishing composition containing an organic nitrogen-containing compound, an organic polybasic acid, an abrasive, and water, wherein the organic nitrogen-containing compound has in the molecule two or more amino groups, two or more imino groups, or one or more amino groups and one or more imino groups; a method for manufacturing a substrate with the polishing composition; and a method for reducing surface stains of a substrate with the polishing composition. The polishing composition can be suitably used, for example, in the manufacturing step for a substrate for a hard disk such as a memory hard disk. | 11-13-2008 |
20090197415 | POLISHING FLUID COMPOSITION - To provide a polishing composition capable of increasing polishing rate and reducing surface roughness, without causing surface defects on a surface of an object to be polished; and a polishing process for a substrate to be polished. [1] a polishing composition comprising water, an abrasive, an intermediate alumina, and a polycarboxylic acid having 4 or more carbon atoms with no OH groups or a salt thereof, wherein a content of the intermediate alumina is from 1 to 90 parts by weight, based on 100 parts by weight of the abrasive; and [2] a polishing process for a substrate to be polished, comprising polishing a substrate to be polished under conditions that a composition of a polishing liquid during polishing is the composition as defined in item [1] above. | 08-06-2009 |
Shigeo Fujii, Saitama-Ken JP
Patent application number | Description | Published |
---|---|---|
20090057605 | FINE, COATED METAL PARTICLES AND THEIR PRODUCTION METHOD - A method for producing fine, coated metal particles comprising the steps of mixing Ti-containing powder except for Ti oxide powder with oxide powder of a metal M, an M oxide having a standard free energy of formation meeting the relation of ΔG | 03-05-2009 |
20110159181 | Fine Composite Metal Particles and Their Production Method, Micro-Bodies, and Magnetic Beads - Fine composite metal particle comprising a metal core and a coating layer of carbon, and being obtained by reducing metal oxide powder with carbon powder. | 06-30-2011 |
20110185851 | Fine Composite Metal Particles and Their Production Method, Micro-Bodies, and Magnetic Beads - Fine composite metal particle comprising a metal core and a coating layer of carbon, and being obtained by reducing metal oxide powder with carbon powder. | 08-04-2011 |
Shigeo Fujii, Kumagaya JP
Patent application number | Description | Published |
---|---|---|
20090054722 | Drug Carrier Containing Magnetic Fine Particles and System Using the Same - The present invention provides drug carriers having high heating efficiency by high-frequency dielectric heating in a state of being selectively accumulated in a target site. The drug carriers each consist of a drug, magnetic fine particles, and a shell containing the drug and the magnetic fine particles. The shell has an outer diameter in a range from 10 nm to 200 nm. The magnetic fine particles having an average particle diameter of d has a standard deviation σ of particle diameter distribution satisfying 0.8d>σ>0.4d. The magnetic fine particles contained in the individual drug carriers generate hysteresis heat due to high-frequency dielectric heating by irradiation of a high-frequency magnetic field. | 02-26-2009 |
Shigeo Fujii, Tokyo JP
Patent application number | Description | Published |
---|---|---|
20150112621 | VOLTAGE DETECTION DEVICE FOR TRANSFORMING APPARATUS - In a voltage detection device for a transforming apparatus, a voltage divider is constituted by providing an intermediate electrode between a central conductor and a tank of the transforming apparatus, to detect a voltage E | 04-23-2015 |