| SUMITOMO ELECTRIC SINTERED ALLOY, LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20100229395 | METHOD FOR MANUFACTURING RIGID INTERNAL GEAR OF WAVE GEAR DEVICE - A method for manufacturing a rigid internal gear of a wave gear device in which an internally toothed portion formed with internal teeth and a gear main body portion are joined integrally, the method including preforming an internal teeth-forming ring or disc for forming the internally toothed portion by using a first aluminum alloy powder; manufacturing a forging in which the internal teeth-forming ring or disc is placed in a forging die and is integrally formed on its outer side with the gear main body portion using a second aluminum alloy powder, the first aluminum alloy powder being harder and having higher abrasion resistance than the second aluminum alloy powder; and applying post-processing including cutting teeth to the forging. | 09-16-2010 |
| 20100209276 | INTERNAL GEAR PUMP ROTOR, AND INTERNAL GEAR PUMP USING THE ROTOR - Flexibility is given in setting the tooth depth and the number of teeth of a pump rotor including a combination of an inner rotor and an outer rotor whose numbers of teeth are different by one, and the discharge amount of the pump is increased by the increase of the tooth depth. At least one of an addendum curve and a dedendum curve of an inner rotor ( | 08-19-2010 |
| 20090197782 | SOFT MAGNETIC MATERIAL AND DUST CORE - A soft magnetic material includes a plurality of composite magnetic particles including a metal magnetic particle and an insulating film surrounding a surface of the metal magnetic particle. The insulating film also contains a phosphate. The soft magnetic material further includes an aromatic polyetherketone resin and a metallic soap and/or an inorganic lubricant having a hexagonal crystal structure. The metallic soap and the inorganic lubricant are particles with an average particle size of not more than 2.0 μm. | 08-06-2009 |
