| Patent Number |
Title Of Patent |
Date Issued |
| 6637528 |
Bit apparatus |
October 28, 2003 |
| A bit apparatus in which a cutter member having cutting teeth is axially supported on a shaft for rotation about the shaft, and a bearing mechanism is interposed between the cutter member and the shaft. The bearing mechanism includes at least a radial bearing for bearing a radially d |
| 6447355 |
Impregnated-type cathode substrate with large particle diameter low porosity region and small pa |
September 10, 2002 |
| There is provided an impregnated-type cathode substrate comprising a large particle diameter low porosity region and a small particle diameter high porosity region which is provided in a side of an electron emission surface of the large particle diameter low porosity region and has an |
| 6304024 |
Impregnated-type cathode substrate with large particle diameter low porosity region and small pa |
October 16, 2001 |
| There is provided an impregnated-type cathode substrate comprising a large particle diameter low porosity region and a small particle diameter high porosity region which is provided in a side of an electron emission surface of the large particle diameter low porosity region and has an |
| 6034469 |
Impregnated type cathode assembly, cathode substrate for use in the assembly, electron gun using |
March 7, 2000 |
| There is provided an impregnated-type cathode substrate comprising a large particle diameter low porosity region and a small particle diameter high porosity region which is provided in a side of an electron emission surface of the large particle diameter low porosity region and has an |
| 5823418 |
Die transporting device |
October 20, 1998 |
| A device for transporting a die from a die pick-up position to a die placement position in the process of manufacturing, for instance, semiconductor devices, including a slider which is vertically movable, a suction holding nozzle installed on the slider, a feeder screw which causes |
| 5615288 |
Singular value decomposition coding and decoding apparatuses |
March 25, 1997 |
| An input image is divided into blocks each represented by n.times.n matrix X, and then X.sup.T X is calculated. Singular values of X that are positive square roots of eigenvalues of X.sup.T X and first singular vectors that are normalized eigenvectors of X.sup.T X are calculated by, |
| 5585224 |
Method of producing aperture grill |
December 17, 1996 |
| A method of producing an aperture grill of a CRT display device is disclosed. The aperture grill is of a small thickness of the order of 20 to 100 .mu.m. To a metal plate with front and rear surface resin layers are applied front slit pattern mask with a single broad slit pattern and a |
| 5567555 |
Method for manufacturing shadow mask and shadow mask manufactured by said method |
October 22, 1996 |
| The present invention relates to a method for manufacturing a shadow mask, which is satisfactory in terms of shape, linearity and dimensional accuracy of an etching hole when thickness of an electrode base material is about 20-80 .mu.m. According to the invention, resist is coated on bot |
| 5524067 |
Image processing device employing coding with edge information preserved |
June 4, 1996 |
| An image processing device including a blocking section for dividing an input image into a plurality of blocks each consisting of N1.times.N2 (N1, N2: positive integers) picture elements; a block attribute determining section for determining an attribute of each block, the attribute bein |
| 5348825 |
Method for manufacturing shadow mask and shadow mask manufactured by said method |
September 20, 1994 |
| The present invention relates to a method for manufacturing a shadow mask, which is satisfactory in terms of shape, linearity and dimensional accuracy of an etching hole when thickness of an electrode base material is about 20-80 .mu.m. According to the invention, resist is coated on bot |
| 5340010 |
Bonding apparatus |
August 23, 1994 |
| This invention is intended to reduce the size of a bonding apparatus and includes a first means which is to construct the bonding apparatus by swingably mounting a lifter arm 4 for holding a horn 2 to the upper Y table 9 of an X-Y table 10. The second means is to construct the apparatus |
| 5002928 |
Method for forming oxide superconducting films with an ultrasonic wave sprayer |
March 26, 1991 |
| A thin film of a superconductor comprising composite metal oxides is formed by atomizing and spraying a homogeneous solution or solutions containing as solutes one or more of metal compounds capable of forming the superconductor, with an ultrasonic wave sprayer, onto a hot substrate to |
| 4953228 |
Apparatus for detecting pattern of crest line |
August 28, 1990 |
| In an apparatus for detecting a pattern of crest lines according to the present invention, an object area to be treated is mechanically divided into a plurality of picture elements (Ej), and the direction of crest lines such as a dactylogram can be easily detected by a simple calculation |
| 4900164 |
Axial retainer for a cutter in a rotary drill bit |
February 13, 1990 |
| A retainer for axially retaining a cutter on the journal pin of a rotary drill bit body includes a plurality of arcuate sliding keys and a single initial tensioning ring accommodated astride an annular groove formed in the peripheral outer wall surface of the journal pin and a correspond |
| 4747604 |
Rotary shaft seal for drill bit cutters |
May 31, 1988 |
| A rotary shaft seal for the rotary cutter of a each boring drill bit includes a fixed seal ring fitted securely in the cutter and having an end face which includes a first tapered surface, a floating seal ring having an end face, which includes a second tapered surface opposing the first |
| 4742012 |
Method of making graded junction containing amorphous semiconductor device |
May 3, 1988 |
| This invention discloses a new semiconductor device having no step type p-i-n juctions but rather has a graded p-i-n juction. The semiconductor device shows a high photoelectric conversion efficiency, and since said device can be produced easily with good reproducibility by a plasma |
| 4407375 |
Pressure compensator for rotary earth boring tool |
October 4, 1983 |
| A pressure compensator installed in the bit body of a rotary earth boring tool to lubricate the bearing surfaces of a rotary cutter and to effect a liquid seal. In order to reduce the number of component parts and to enhance durability, the pressure compensator includes a rubber diaphrag |
