1. An organic EL device having a light emitting element comprising:
a substrate;
a first electrode;
a second electrode of transparent conductive film; and
a light emitting organic material layer formed between said first electrode and said second electrode, wherein
said transparent conductive film is made of a metal oxide deficient in oxygen as compared with stoichiometric composition and is made of ITO having a composition of In2-xSnxO3-y(where 0<x<1 and 0.05\u2266y\u22660.2),
wherein said first electrode is arranged between said second electrode and said substrate, and
an enhanced hygroscopic layer andor a protective layer are formed on said second electrode.
2. The organic EL device according to claim 1, wherein said first electrode is made of metal.
3. The organic EL device according to claim 1, wherein said first electrode is made of any one of MgAg, Al, and LiAl.
4. The organic EL device according to claim 1, wherein said light emitting organic material layer serves also as a hole injection layer andor an electron transport layer.
5. The organic EL device according to claim 1, wherein
an electron transport layer is inserted between said first electrode and said light emitting organic material layer.
6. The organic EL device according to claim 1, wherein
an anode buffer layer andor a hole injection layer is inserted between said second electrode and said light emitting organic material layer.
7. An organic EL device having a light emitting element comprising:
a first electrode;
a second electrode of transparent conductive film; and
a light emitting organic material layer formed between said first electrode and said second electrode,
wherein said transparent conductive film is made of a metal oxide deficient in oxygen as compared with stoichiometric composition and is made of ITO having a composition of In2-xSnxO3-y(where 0<x<0.3 and 0.05\u2266y\u22660.2),
wherein said second electrode, of said first electrode and said second electrode, is formed on a substrate side, and a protective layer is formed on said first electrode, and
wherein an enhanced hygroscopic layer is formed adjacent to said second electrode between a substrate and said second electrode.
8. The organic EL device according to claim 1, wherein
said light emitting element is encapsulated in a sealing member adhered onto said substrate.
9. The organic EL device according to claim 8, wherein Na, H2, or an inert gas is sealed in a space encapsulated in said sealing material.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A lubricating nutating single cone drill bit comprising:
a bit shank having a drill string connection on a proximal end and an axially skewed journal on a distal end;
at least one bearing rotatably retaining a cutter body on the axially skewed journal;
a plurality of cutter elements affixed to a distal end of the cutter body so that a tip of each cutter element is forward an intersection of a central axis of the bit shank and an axis of rotation of the cutter body and a first radial distance to the tip of each cutter element from the axis of rotation of the cutter body is longer than a second radial distance to said tip of each cutter element from the central axis of the bit shank, upon contact with a borehole floor;
a lubricant chamber in the bit shank in communication with a first fluid inlet port on an exterior of the bit shank and at least one bearing;
a plunger in the lubricant chamber inhibiting the ingress of an annulus fluid;
a first fluid outlet port on a distal end of the journal extending through an opening in the cutter body and in communication with a fluid passage the bit shank in, the fluid passage thereby in communication with a second fluid inlet port in the proximal end of the bit shank; and,
a second fluid outlet port on the exterior of the bit shank in communication with the fluid passage.
2. The lubricating nutating single cone drill bit of claim 1 wherein the at least one bearing comprises at least one ball bearing disposed between a first channel formed in the axially skewed journal comprising a narrow portion at a distal end and a thrust shoulder adjacent the narrow portion and a second channel formed in an interior of the cutter body having a thrust bearing disposed between the thrust shoulder of the axially skewed journal and a thrust shoulder in the interior of the cutter body.
3. The lubricating nutating single cone drill bit of claim 2 wherein the at least one bearing further comprises at least one radial bearing disposed between the axially skewed journal and the cutter body.
4. The lubricating nutating single cone drill bit of claim 2 further comprising a ball bearing passage connecting the first channel and the lubricant chamber to allow the insertion of the at least one ball bearing therethrough and a ball bearing retention sleeve disposed in the lubricant chamber adjacent the ball bearing passage to retain the at least one ball bearing between the first and the second channel.
5. The lubricating nutating single cone drill bit of claim 1 wherein at least one of the fluid outlet ports comprises a jetting nozzle.
6. The lubricating nutating single cone drill bit of claim 1 wherein the plunger further comprises:
a longitudinal bore extending therethrough; and
a plug sealed within the longitudinal bore.
7. A method to drill a formation comprising:
attaching the lubricating nutating single cone drill bit of claim 1 to a drill string to form an assembly;
engaging the assembly into the formation;
rotating the drill string to drill the formation with the lubricating nutating single cone drill bit to produce a well bore, the lubricant chamber dispensing a lubricant to the at least one bearing; and
pumping the drilling fluid through the drill string into the second fluid inlet port and out of the first and the second fluid outlet ports.
8. The method to drill a formation of claim 7 further comprising:
removing the lubricating nutating single cone drill bit from the well bore; and
replenishing the lubricant in the lubricant chamber.