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Keihachiro Nakajima Patents |
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Inventor: Nakajima; Keihachiro
Address: Yokohama, JP
No. of patents: 5
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5922300 |
Process for producing silicon carbide fibers |
July 13, 1999 |
| A process for producing silicon carbide fibers is provided, comprising the steps of mixing a silicon supply source powder including a mixture of silicon powder and silicon dioxide powder having a molar mixing ratio of 1:0.1 to 1:2 with activated carbon staple fibers having a length of 0. |
| 5676918 |
Method of producing silicon carbide fibers |
October 14, 1997 |
| Silicon carbide fibers having a high mechanical strength at a high temperature, an excellent heat resistance and a uniform structure are produced by activating carbon fibers which have been produced by heat-treating organic carbon fibers such as cellulose, polyacrylonitrile or petrol |
| 5618510 |
Process for producing silicon carbide material |
April 8, 1997 |
| A silicon carbide material in the form of fibers, sheets or three-dimensionally structured articles useful as a reinforcing material and heat-insulating material, is produced by reacting an activated porous carbon material in the form of, for example, fibers, sheets or three-dimensio |
| 5158646 |
Process for modifying hydrophilic fibers with substantially water-insoluble inorganic substance |
October 27, 1992 |
| A hydrophilic fibers modified with a substantially water-insoluble inorganic compound is produced by immersing hydrophilic fibers, for example, pulp fibers, in an aqueous solution of a water-soluble inorganic compound (a) selected from aluminates, silicates and zincates of alkali met |
| 5122230 |
Process for modifying hydrophilic fibers with substantially water-insoluble inorganic substance |
June 16, 1992 |
| A hydrophilic fibers modified with a substantially water-insoluble inorganic compound is produced by immersing hydrophilic fibers, for example, pulp fibers, in an aqueous solution of a water-soluble inorganic compound (a) which is precipitated when brought into contact with a precipi |
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