Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 8124247 | High-strength welded steel pipe including weld metal having high cold-cracking resistance and method for manufacturing the same A high-strength steel pipe has a tensile strength of 800 MPa or more and includes a weld metal having high cold-cracking resistance and high low-temperature toughness, wherein the weld metal contains C: 0.04% to 0.09% by mass, Si: 0.32% to 0.50% by mass, Mn: 1.4% to... | 02/28/2012 |
| 7921562 | Welding method and steel plate deck A method of welding a deck plate and a closed section rib both constituting a steel plate deck, comprising: working a root portion of the closed section rib to have a flat surface in parallel with a surface of the deck plate; and welding the deck plate and the close... | 04/12/2011 |
| 7384484 | Substrate processing method, substrate processing apparatus and substrate processing system After subjected to a developing process, a rinsing process and a replacing process in this order in a developing unit 10A, 10B, a substrate W wet with an anti-drying solution is wet-transported to a supercritical drying unit 20 by a primary tran... | 06/10/2008 |
| 6777321 | Method of forming buried wiring A method of forming a buried wiring comprising the steps of: (A) forming a wiring and a first insulating layer filled between the wirings on a substratum, (B) immersing the first insulating layer in a fluid which can dissolve the first insulating layer, to dissolve ... | 08/17/2004 |
| 6524429 | Method of forming buried wiring, and apparatus for processing substratum A method of forming a buried wiring comprising the steps of: (A) forming a wiring and a first insulating layer filled between the wirings on a substratum, (B) immersing the first insulating layer in a fluid which can dissolve the first insulating layer, t... | 02/25/2003 |
