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公开(公告)号：JPH0543319A
公开(公告)日：1993-02-23
申请号：JP20680391
申请日：1991-08-19
Applicant: KAO CORP
Inventor： YAMAUCHI MICHIHIDE , ISOBE TSUTOMU
IPC: C04B35/52
Abstract: PURPOSE:To provide a uniform composite material composed of vitreous carbon and ceramic. CONSTITUTION:The objective composite material composed of vitreous carbon and ceramic with the hyper time ceramic powder highly homogeneously dispersed in the vitreous carbon can be obtained by homogeneously mixing in a liquid state (A) a thermosetting resin (e.g. furan resin) and (B) an organometallic compound (e.g. polycarbosilane) followed by heating (roasting).
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公开(公告)号：JPH02297755A
公开(公告)日：1990-12-10
申请号：JP11953789
申请日：1989-05-12
Applicant: KAO CORP
Inventor： ISHIKAWA ATSUSHI , YAMAUCHI MICHIHIDE , ISOBE TSUTOMU
Abstract: PURPOSE:To obtain satisfactory recording and reproducing characteristic by forming the regulation plane of the slidably contacting component at the downstream side of the magnetic head as an oblique plane being separated from a disk, and forming the regulation plane of the slidably contacting component at the upstream side as a plane approaching to the disk in parallel with the oblique plane or a rotating plane so as to stabilize the abutting states of slidably contacting components at the downstream and upstream sides of a magnetic head. CONSTITUTION:The regulation plane which regulates the disk position of a first slidably contacting component 7 is formed as the oblique plane being separated from the rotating plane of the disk 1 at the downstream side as approaching, and a groove part 73 having a part to intersect orthogonally to the oblique plane in a rotational direction is formed, and the regulation plane to regulate the disk position of a second slidably contacting component 8 is formed as the oblique plane approaching the rotating plane of the disk 1 at the downstream side as approaching. Thereby, a flexible magnetic disk 1 is pressed on the magnetic head 3 with a constant pressing force by the negative pressure of an air flow at a first regulation plane, and the flexible magnetic disk can be prevented from being collided on the second slidably contacting component 8 with the positive pressure of the air flow, then, the traveling plane of the disk can be stably regulated. In such a way, the travel of the flexible magnetic disk 1 can be stabilized, and the satisfactory recording and reproducing characteristic can be obtained.
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公开(公告)号：JPS6452603A
公开(公告)日：1989-02-28
申请号：JP7577588
申请日：1988-03-29
Applicant: KAO CORP
Inventor： YAMAUCHI MICHIHIDE , OOJI NOBUNORI , ISHIKAWA ATSUSHI , WAKASA MASANOBU
IPC: C01B31/04 , C04B35/52 , C10M111/00 , C10N40/02 , C10N40/18 , C10N50/08 , C23C14/06 , C23C14/12 , F16N15/00 , G11B5/10 , G11B5/187 , G11B5/60 , G11B15/60 , G11B15/61 , G11B17/32 , G11B17/34 , G11B23/087 , G11B23/50
Abstract: PURPOSE:To improve stability and durability of a magnetic medium recording device useful for processing information, etc., by constructing a slide contact surface of a slide contact part in a recording device consisting of a magnetic head, etc., from a composition containing glassy carbon and a specific compound. CONSTITUTION:A thermosetting polymer is carbonized to provide a glassy carbon material (A), such as polyacrylonitrile based material. One or more are selected from fine metallic oxide particles, fine metallic nitride particles, fine metallic carbide particles and fine metallic boride particles to afford an inorganic compound (B) (e.g. SiC having about 0.06mum particle diameter). The components (A) and (B) are then mixed to provide a composite material (C), which is then subjected to cutting out machining to afford a slide contact part 11. The back surface of a magnetic head 24 of a disk drive consisting of a spindle 22 for rotating a flexible magnetic disk 21 and the magnetic head 24, etc., in the vicinity of the surface of the disk 21 is provided with the slide contact part 11 to improve durability of the resultant magnetic medium record ing device.
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公开(公告)号：JPS63145433A
公开(公告)日：1988-06-17
申请号：JP28744686
申请日：1986-12-02
Applicant: KAO CORP
Inventor： YAMAUCHI MICHIHIDE , ICHIKAWA HIROTSUGU
IPC: D01H7/60
Abstract: PURPOSE:To obtain the titled ring suitable for high-speed fine spinning, high- speed twisting and fine spinning and twisting of a yarn having high corrosiveness, by forming at least a flange part sliding with a traveller with a material composed mainly of glassy carbon. CONSTITUTION:At least a flange part sliding with a traveller of a ring for spinning or twisting is constructed of a material composed mainly of glassy carbon (simple glassy carbon or a composite material of glassy carbon). The abrasion and damage of traveller can be prevented, rust causing the breakage of traveller can be suppressed and the life of the ring and traveller can be prolonged.
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公开(公告)号：JPS63130005A
公开(公告)日：1988-06-02
申请号：JP27624986
申请日：1986-11-19
Applicant: KAO CORP
Inventor： YAMAUCHI MICHIHIDE , ISOBE TSUTOMU , TAKAHASHI KEIZO
IPC: A45D33/18
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Patent Agency Ranking
公开(公告)号：JPS60171206A
公开(公告)日：1985-09-04
申请号：JP2629784
申请日：1984-02-14
Applicant: KAO CORP
Inventor： YAMAUCHI MICHIHIDE , KISHINE NOBUYUKI , IMAMURA TETSUYA
Abstract: PURPOSE:To provide very high smoothness to the surface of a molded article of a vitrified carbonaceous material contg. micropores by mirror polishing by adjusting the diameter of the micropores in the molded article to a specified value or below. CONSTITUTION:A thermosetting resin having >=20wt% water solubility at 300- 8,000cps viscosity at 25 deg.C is cured, and it is carbonized and calcined at >=800 deg.C in an inert atmosphere to obtain a molded article of a vitrified carbonaceous material contg. micropores of
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公开(公告)号：JPS6053545A
公开(公告)日：1985-03-27
申请号：JP16166683
申请日：1983-09-02
Applicant: KAO CORP
Inventor： UEDA TOYOJI , KISHINE NOBUYUKI , YAMAUCHI MICHIHIDE
Abstract: PURPOSE:To obtain a molded resin article having improved abrasion resistance and scratch resistance, by coating the surface of the article with a sputtered layer formed by using a carbon material as a sputtering target. CONSTITUTION:A sputtered layer formed by using a carbon material as a sputtering target is applied to the surface of a transparent resin molded article. The transparent resin is e.g. polycarbonate resin, acrylic resin, etc. The carbon material is e.g. vitreous carbon, graphite, carbon black, etc., and the surface of the sputtering target is mirror-ground. A base-coating of an acrylic or urethane resin is applied to the surface of the resin base, and te surface is subjected to the pretreatment comprising the back-sputtering for about 2-10sec followed by the sputtering of SiO2.
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公开(公告)号：JPS59195365A
公开(公告)日：1984-11-06
申请号：JP6979083
申请日：1983-04-19
Applicant: Kao Corp
Inventor： YAMAUCHI MICHIHIDE , IMAMURA TETSUYA , KISHINE NOBUYUKI
IPC: G11B5/60 , B41J2/335 , G11B5/187 , G11B5/255 , G11B15/60 , G11B17/32 , G11B21/21 , G11B23/08 , G11B23/087
Abstract: PURPOSE: To provide a sliding contact parts which provides less frictional resistance with a recording medium to avoid damaging the recording medium and is highly durable by constituting the part of the aggregate of a glassy carbon material and/or the aggregate of a composite material contg. the glassy carbon material.
CONSTITUTION: A glassy carbon material obtd. by carbonizing a thermosetting resin is used as the glassy carbon material. The composite aggregate is the aggregate of a composite material contg. said glassy carbon material, and a synthetic resin and/or carbonaceous filler. A PVC resin and polyvinyl acetate resin are used as the synthetic resin. The carbonaceous filler is a general carbon material. The glassy carbon material is preferably incorporated at ≥40vol% in the composite material and this part has preferably ≥1.40g/cm
2 density. This parts has the moderate lubricating qualities at which the aggregate itself wears first before a recording medium or the protective film thereof is damaged when the recording medium or the protective film provided atop the same slides thereon. The lubricity with the recording medium is thus maintained for a long time without using a lubricant.
COPYRIGHT: (C)1984,JPO&JapioAbstract translation: 目的：提供一种滑动接触部件，其与记录介质提供较小的摩擦阻力，以避免损坏记录介质，并且通过构成玻璃碳材料和/或复合材料的聚集体的一部分来高度耐用。 玻璃碳材料。 构成：玻璃碳材料 通过碳化热固性树脂作为玻璃碳材料。 复合骨料是复合材料的聚集体。 所述玻璃碳材料，以及合成树脂和/或碳质填料。 使用PVC树脂和聚乙酸乙烯酯树脂作为合成树脂。 含碳填料是一般碳材料。 玻璃状碳材料优选以复合材料中≥40体积％掺入，该部分的密度优选> 1.40g / cm 2。 这些部件具有适度的润滑特性，其中当记录介质或保护膜设置在其上的相同的载玻片上时，聚集体本身首先在记录介质之前磨损或其保护膜损坏。 因此，使用记录介质的润滑性能长时间保持不使用润滑剂。
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公开(公告)号：JP2001138441A
公开(公告)日：2001-05-22
申请号：JP31883199
申请日：1999-11-09
Applicant: KAO CORP
Inventor： SATO SHINYA , YAMAUCHI MICHIHIDE
Abstract: PROBLEM TO BE SOLVED: To provide a wrapping film to be used when a food is packaged for storage or heated and cooked by a microwave oven or the like, having low temperature embrittlement resistance, high transparency, stability to hot water, endurance to microwave oven cooking, almost no thermal shrinkage to cause the film not to collapse the food or not to be crazed, good adhesive properties to a container and films to each other, good drawability and saw blade cuttability, a drape and further high safety to a human body and an environment. SOLUTION: In the wrapping film comprising a multi-layer structure of two front surface layers and intermediate layers interposed between the two surface layers, at least one of the intermediate layers is made of a copolymer composition obtained by using an ethylene and a norbornene or an ethylene and a tetracyclododecene, and a ratio of the thickness of the structure to that of the intermediate layer is 30% or less.
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公开(公告)号：JP2000345454A
公开(公告)日：2000-12-12
申请号：JP15831499
申请日：1999-06-04
Applicant: KAO CORP
Inventor： MORI KAZUO , YAMAUCHI MICHIHIDE
Abstract: PROBLEM TO BE SOLVED: To provide a nonwoven fabric capable of easily being cut by hand so as to freely have a desired size and not having a difference between cutting properties in a flow direction and in a cross direction. SOLUTION: This nonwoven fabric is produced by forming a web on the basis of an air-lay method using fibers having a fiber length of 2-10 mm and a fineness of 1-100 deniers and by thermobonding intersections between/among fibers in the web so as for a weight basis, thickness and tear strength of the nonwoven fabric to be 30-200 g/m2, 0.5-5 mm and 0.1-3 N, respectively.
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