"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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| Number | Title | Issue Date |
| 7439563 | High-breakdown-voltage semiconductor device A high-breakdown-voltage semiconductor device comprises a high-resistance semiconductor layer, trenches formed on the surface thereof in a longitudinal plane shape and in parallel, first regions formed on the semiconductor layer to be sandwiched between adjacent one... | 10/21/2008 |
| 7385231 | Porous thin-film-deposition substrate, electron emitting element, methods of producing them, and switching element and display element A method of producing a porous thin-film-deposition substrate, which has the steps of: placing onto a substrate that has an electrostatic charge on its surface, fine particles with a surface electrostatic charge opposite to the electrostatic charge of the substrate ... | 06/10/2008 |
| 7132677 | Super bright light emitting diode of nanorod array structure having InGaN quantum well and method for manufacturing the same An GaN light emitting diode (LED) having a nanorod (or, nanowire) structure is disclosed. The GaN LED employs GaN nanorods in which a n-type GaN nanorod, an InGaN quantum well and a p-type GaN nanorod are subsequently formed in a longitudinal direction by inserting ... | 11/07/2006 |
| 5258670 | Light triggered & quenched static induction thyristor circuit A LTQ (light triggered & quenched) static induction thyristor circuit of the present invention is to provide a LTQ static induction thyristor circuit obtaining an excellent dv/dt capability and operating ambient temperature characteristics, a large optica... | 11/02/1993 |
| 4975755 | Optically controllable static induction thyristor device A semiconductor device comprises a static induction thyristor and a photosensitive element connected to a gate of the static induction thyristor so that the static induction thyristor is controlled optically. A plurality of the semiconductor devices are e... | 12/04/1990 |
| 4914043 | Method of making an integrated light-triggered and light-quenched static induction thyristor An integrated light-triggered and light-quenched static induction thyristor and fabrication process thereof adapted in such a manner that an integrated SIPT operates in the normal mode in order to enhance current gain, tail current generated at the light-... | 04/03/1990 |
| 4866500 | Integrated light-triggered and light-quenched static induction thyristor and making method thereof An integrated light-triggered and light-quenched static induction thyristor and fabrication process thereof adapted in such a manner that an integrated SIPT operates in the normal mode in order to enhance current gain, tail current generated at the light-... | 09/12/1989 |
| 4816891 | Optically controllable static induction thyristor device A semiconductor device comprises a static induction thyristor and a photosensitive element connected to a gate of the static induction thyristor so that the static induction thyristor is controlled optically. A plurality of the semiconductor devices are e... | 03/28/1989 |