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1. (WO1998049121) SEMICONDUCTIVE ZIRCONIA SINTER AND DESTATICIZING MEMBER COMPRISING SEMICONDUCTIVE ZIRCONIA SINTER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/049121 International Application No.: PCT/JP1998/001882
Publication Date: 05.11.1998 International Filing Date: 22.04.1998
IPC:
C04B 35/486 (2006.01) ,F16C 33/04 (2006.01) ,G11B 17/038 (2006.01) ,G11B 5/53 (2006.01) ,G11B 5/11 (2006.01) ,G11B 5/187 (2006.01) ,G11B 5/40 (2006.01) ,G11B 5/48 (2006.01)
C CHEMISTRY; METALLURGY
04
CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
B
LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
35
Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
01
based on oxides
48
based on zirconium or hafnium oxides or zirconates or hafnates
486
Fine ceramics
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
33
Parts of bearings; Special methods for making bearings or parts thereof
02
Parts of sliding-contact bearings
04
Brasses; Bushes; Linings
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
17
Guiding record carriers not specifically of filamentary or web form, or of supports therefor
02
Details
038
Centering or locking of a plurality of discs in a single cartridge
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
48
Disposition or mounting of heads relative to record carriers
52
with simultaneous movement of head and record carrier, e.g. rotation of head
53
Disposition or mounting of heads on rotating support
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
10
Structure or manufacture of housings or shields for heads
11
Shielding of head against electric or magnetic fields
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
127
Structure or manufacture of heads, e.g. inductive
187
Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to, the recording medium; Pole pieces; Gap features
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
40
Protective measures on heads, e.g. against excessive temperature
G PHYSICS
11
INFORMATION STORAGE
B
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
5
Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
48
Disposition or mounting of heads relative to record carriers
Applicants:
KYOCERA CORPORATION [JP/JP]; 5-22, Kitainoue-cho Higashino Yamashina-ku Kyoto-shi Kyoto 607-8141, JP (AllExceptUS)
MIKAKI, Shunji [JP/JP]; JP (UsOnly)
HAMASHIMA, Hiroshi [JP/JP]; JP (UsOnly)
IWASAKI, Kouichi [JP/JP]; JP (UsOnly)
IWAMOTO, Kuniharu [JP/JP]; JP (UsOnly)
NAKAHARA, Masahiro [JP/JP]; JP (UsOnly)
OKUMURA, Masahiro [JP/JP]; JP (UsOnly)
HINO, Syouji [JP/JP]; JP (UsOnly)
NABESHIMA, Yutaka [JP/JP]; JP (UsOnly)
Inventors:
MIKAKI, Shunji; JP
HAMASHIMA, Hiroshi; JP
IWASAKI, Kouichi; JP
IWAMOTO, Kuniharu; JP
NAKAHARA, Masahiro; JP
OKUMURA, Masahiro; JP
HINO, Syouji; JP
NABESHIMA, Yutaka; JP
Agent:
TAKAGI, Yoshiteru; Nishi-Yachiyo Building 23-26, Edobori 1-chome Nishi-ku Osaka-shi Osaka 550-0002, JP
Priority Data:
10/8629931.03.1998JP
9/10915925.04.1997JP
9/10985525.04.1997JP
9/17485630.06.1997JP
9/23527029.08.1997JP
9/29918530.10.1997JP
Title (EN) SEMICONDUCTIVE ZIRCONIA SINTER AND DESTATICIZING MEMBER COMPRISING SEMICONDUCTIVE ZIRCONIA SINTER
(FR) AGGLOMERE DE ZIRCONE SEMICONDUCTEUR ET ELEMENT ELIMINATEUR D'ELECTRICITE STATIQUE COMPRENANT UN AGGLOMERE DE ZIRCONE SEMICONDUCTEUR
Abstract:
(EN) A semiconductive zirconia sinter which can be easily produced at low cost and release static electricity at an appropriate rate without considerably lowering the mechanical properties of zirconia. A semiconductive zirconia sinter having a volume resistivity of 105 to 109 $g(V) .cm is formed by incorporating 10 to 40 wt.% at least one conductivity imparting agent selected among oxides of iron, cobalt, nickel, and chromium into 60 to 90 wt.% ZrO2 containing a stabilizer.
(FR) L'invention a pour objet un aggloméré de zircone semiconducteur qui peut être produit aisément, à faibles coûts, et libère une électricité statique, à une vitesse appropriée, sans réduire considérablement les propriétés mécaniques du zircone. Un aggloméré de zircone semiconducteur, présentant une résistivité comprise entre 105 et 109 $g(V) .cm est formé en intégrant 10 à 40 % en poids d'au moins un agent conférant une conductivité, sélectionné parmi des oxydes de fer, cobalt, nickel, et chrome dans 60 à 90 % en poids de ZrO2 contenant un stabilisant.
front page image
Designated States: KR, US
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
KR1020000015913US6274524