# US 2018/0021959 A1 · Suction nozzle

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- Number: US 2018/0021959 A1
- Document ID: US20180021959A1
- Status: Published application
- Kind: A1
- Application number: 15/546,690
- Filed: 2016-01-27
- Published: 2018-01-25
- Earliest claimed: 2015-01-28
- Assignees: KYOCERA Corporation
- Applicants: Kyocera Corporation
- Inventors: Minoru Nakasuga; Yasuyuki Hiromasa; Muneki Koga
- Web page: https://patentgrep.com/patent/US20180021959A1

## CPC

- B25J 15/0616: {with vacuum}
- B25J 15/06: with vacuum or magnetic holding means
- C04B 35/48: based on zirconium or hafnium oxides, zirconates, {zircon} or hafnates
- C04B 35/486: Fine ceramics
- C04B 35/6261: {Milling}
- C04B 35/632: Organic additives
- C04B 35/63424: {Polyacrylates; Polymethacrylates}
- C09C 1/0009: {Pigments for ceramics (C09C1/0015, C09C1/0078 take precedence)}
- H05K 13/0409: {Sucking devices}
- H05K 13/0813: {Controlling of single components prior to mounting, e.g. orientation, component geometry (H05K13/0812 takes precedence)}
- C04B 2235/3232: Titanium oxides or titanates, e.g. rutile or anatase
- C04B 2235/3241: Chromium oxides, chromates, or oxide-forming salts thereof
- C04B 2235/3244: Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
- C04B 2235/3272: Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
- C04B 2235/5445: submicron sized, i.e. from 0,1 to 1 micron
- C04B 2235/785: Submicron sized grains, i.e. from 0,1 to 1 micron
- C04B 2235/963: Surface properties, e.g. surface roughness
- C04B 2235/9661: Colour
- B25J: MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES ({manipulators specially adapted for use in surgery A61B34/70; manipulators used in cleaning hollow articles B08B9/04}; manipulators associated with rolling mills B21B39/20; manipulators associated with forging machines B21J13/10; {manipulators associated with picking-up and placing mechanisms B23P19/007}; means for holding wheels or parts thereof B60B30/00; {vehicles with ground-engaging propulsion means, e.g. walking members B62D57/02, B62D57/032; devices for picking-up and depositing articles or materials between conveyors B65G47/90, B65G47/91; manipulators with gripping or holding means for transferring packages B65H67/065}; cranes B66C; {manipulators used in the protection or supervision of pipe-line installations F17D5/00; walking equipment adapted for nuclear steam-generators F22B37/006}; manipulators specially adapted for, or associated with, nuclear reactors G21C; {apparatus used for handling wafers during manufacture or treatment of semiconductor H10P72/50})
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
- C09C: TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES (treatment of materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone C04B14/00, C04B18/00, C04B20/00); PREPARATION OF CARBON BLACK {; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS}
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

## Abstract

A suction nozzle is disclosed. The suction nozzle includes zirconia-based ceramics. The ceramics includes first grains and second grains. The first grains each contain zirconia, and the second grains each contain a black-colored component. The suction nozzle includes a suction face and a suction hole. The suction hole is in communication with the suction face. In the suction face, an area ratio of an area occupied by the second grains to a measurement face obtained by polishing the suction face is greater than or equal to 17% but less than or equal to 34%. A number of the second grains in an area of 90 μm2 in the measurement face is greater than or equal to 150 but less than or equal to 250.

## Claims

### Claim 1

A suction nozzle comprising:
zirconia-based ceramics containing:
first grains containing zirconia and
second grains containing a component of a black color,
a suction face comprising a measurement face that is obtained by polishing the suction face for measurements, the measurement face having:
a ratio of a total area of the second grains within the measurement face to an area of the measurement face of 17% to 34%; and
a number of the second grains in an area of 90 μ2 in the measurement face of 150 to 250; and
a suction hole in communication with the suction face.

### Claim 2 (depends on 1)

The suction nozzle according to claim 1,
wherein an average of distances between centroids of adjacent second grains in the measurement face is 0.6 μm to 1.0 μm.

### Claim 3 (depends on 1)

The suction nozzle according to claim 1,
wherein a proportion in number of the second grains having a grain size of 0.6 μm or more in the measurement face in terms of equivalent circle diameter to a number of all of the second grains is 25% or less.

### Claim 4 (depends on 1)

The suction nozzle according to claim 1,
wherein kurtosis Rku obtained from a roughness curve in the suction face is greater than 3 and less than or equal to 4.5.

### Claim 5 (depends on 1)

The suction nozzle according to claim 1,
wherein skewness Rsk obtained from a roughness curve in the suction face is greater than 0.