Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 6614245 | Probe for bumps between printed wiring board and circuit component A probe includes a grip body attached with an electric terminal, and an arm body extending from the grip body. When the arm body has been inserted between a BGA and a printed wiring board, a contact electrode on the arm body is allowed to contact a target... | 09/02/2003 |
| 6579645 | Hydrogen absorbing alloy for electrode, hydrogen absorbing alloy electrode and alkaline storage battery In a hydrogen absorbing alloy electrode employed as a negative electrode of an alkaline storage battery, a covering layer containing at least one of metal elected from nickel and cobalt, and carbon particles is formed on a surface of the hydrogen absorbin... | 06/17/2003 |
| 6472763 | Semiconductor device with bumps for pads A conductive electrode pad is formed on a partial area of an insulating surface. An insulating film covers the electrode pad. The insulating film has an opening exposing at least a partial upper surface of the electrode pad. A barrier layer of conductive ... | 10/29/2002 |
| 6455966 | Magnetic bearing device for motor-combined structure A magnetic bearing device for use with a motor-combined structure having magnetic bearings supporting a rotatable shaft out of contact therewith and a motor for rotating the rotatable shaft. A common power supply supplies electric power to the magnetic be... | 09/24/2002 |
| 6442951 | Heat exchanger, heat pump, dehumidifier, and dehumidifying method A heat exchanger of a high heat exchange efficiency with a small size for its large heat exchanger duty is provided. The heat exchanger comprises: a first compartment 310 for flowing a first fluid A; a second compartment 320 for flowing a second fluid B; ... | 09/03/2002 |
| 6414159 | Method for preparation of a quaternary ammonium salt The present invention provides a method for preparation of a quaternary ammonium salt comprising reacting an alkyl halide with 2 equimolar amount or more per the alkyl halide of a pyridine compound or an N-lower alkyl imidazole at 120° C. to 350° C., an... | 07/02/2002 |
| 6380014 | Manufacture method of semiconductor device with suppressed impurity diffusion from gate electrode A method of manufacturing a semiconductor device includes the step of forming a MOS transistor structure on a semiconductor substrate, the MOS transistor structure having an insulated gate electrode. The method further includes the step of depositing a si... | 04/30/2002 |
| 6379548 | System for recovering and treating waste water This invention provides a compact effluent water reclamation apparatus which is minimized in the kinds and amounts of chemicals to be used for the recovery of water to thereby reduce the amount of waste and eliminate equipment which necessitates a large a... | 04/30/2002 |
| 6372710 | Detergent composition and process for producing composition thereof The invention of this application aims to offer the detergent composition that does not destroy natural ecosystem or pollute air, as the detergent contains neither organic synthetic surfactant that pollutes environment, rivers and lakes nor petroleum vola... | 04/16/2002 |
| 6356395 | Light intensity distribution converting device and optical data storage apparatus A light intensity distribution converting device is formed by a transparent body having a first curved surface, a second curved surface, and an outer circumferential surface extending between the first and second curved surfaces. One of first and second s... | 03/12/2002 |
| 6346757 | Magnetic bearing controller It is an object of the present invention to provide a magnetic bearing controller which is able to levitate the controlled object stably by using controlled magnetic forces. In the magnetic bearing controller which supplies a controlled current to an elec... | 02/12/2002 |
