| Patent Number |
Title Of Patent |
Date Issued |
| 7253132 |
Magnesium-containing carrier components and application thereof to olefin polymerization |
August 7, 2007 |
| Solid fine particles which contain a magnesium atom, an aluminum atom and a C.sub.1-20 alkoxy group simultaneously, are insoluble in a hydrocarbon solvent, and have an average particle diameter of 3 to 80 .mu.m, and an olefin polymerization catalyst containing the solid fine particles an |
| 7208559 |
Ethylened polymer and molded object obtained therefrom |
April 24, 2007 |
| An ethylene-based polymer which is an ethylene/C4 to C10 .alpha.-olefin copolymer and satisfies the following requirements [k1] to [k3]: [k1] melt flow rate (MFR) under a loading of 2.16 kg at 190.degree. C. is in the range of 1.0 to 50 g/10 minutes; [k2] LNR defined as a scale of ne |
| 7117253 |
Information management system retrieving recorded information version from server-side or duplic |
October 3, 2006 |
| An information management system records in a server contents that need not be updated for a fixed time-period. The system accesses desired contents in a local device or the server storing the contents. A request for information is made from an information browsing unit to a local re |
| 6967519 |
Drive circuit for a power semiconductor device |
November 22, 2005 |
| A drive circuit for a power semiconductor device includes: a sampling signal generating circuit for detecting that an input control signal instructs OFF and outputting a sampling signal at the time instant of start of a Miller period of time of an IGBT; a gate voltage detecting circu |
| 6906574 |
Drive circuit for driving power semiconductor device |
June 14, 2005 |
| A drive circuit includes a gate voltage detector that detects a gate-emitter voltage Vge that appears between the gate and emitter of a power semiconductor device throughout a detection time period during which a sampler allows the process of detecting the gate-emitter voltage Vge, a |
| 6897176 |
Olefin polymerization catalyst and process for producing olefin polymer with the catalyst |
May 24, 2005 |
| A novel olefin polymerization catalyst is provided which comprises (A) a transition metal compound or lanthanoid compound containing two or more atoms selected from the group consisting of boron, nitrogen, oxygen, phosphorus, sulfur, and selenium; and (B) a Lewis acid. A process for |
| 6493748 |
Information management system, local computer, server computer, and recording medium |
December 10, 2002 |
| Contents on a server that need not be updated for a fixed period of time are recorded directly in a medium, and desired contents in a local device can be accessed by the same operation procedure as that for accessing the server storing the contents. When a request to acquire delivery |
| 6034189 |
Solid titanium catalyst component for olefin polymerization, process for preparation of the same |
March 7, 2000 |
| Disclosed is a solid titanium catalyst component for olefin polymerization comprising magnesium, titanium, halogen, and (C) a phthalic diester represented by the following structural formula (i): ##STR1## wherein R is a branched hydrocarbon group of 7 carbon atoms, and two or R m |
