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31. 发明专利

JP2007053269A Electromagnetic wave absorber and its manufacturing method 审中-公开
标题翻译：电磁波吸收器及其制造方法
公开(公告)号：JP2007053269A
公开(公告)日：2007-03-01
申请号：JP2005238095
申请日：2005-08-19
申请人： Denki Kagaku Kogyo Kk , 電気化学工業株式会社
发明人： YAMASHITA MASAMI , OKADA TAKUYA
IPC分类号： H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide an electromagnetic wave absorber of neighborhood use which is employed while being contacted with or extremely approximated to the generating source of unnecessary electromagnetic wave in a circuit.
SOLUTION: The electromagnetic wave absorber is formed of an electromagnetic wave layer 3 bonded to and sealed by an insulating substrate 1, so that the peripheral rim of the insulating substrate 1 pushes out from the end of the electromagnetic wave absorbing layer 3. In this case, the pushing width is preferable to be 0.5-1 mm. Further, the manufacturing method of electromagnetic wave absorber has the process that the electromagnetic wave layer 3 is sealed by the insulating substrate 1.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种邻近使用的电磁波吸收体，其与电路中不必要的电磁波的发生源接触或非常接近时使用。解决方案：电磁波吸收体由与绝缘基板1接合并密封的电磁波层3形成，绝缘基板1的周缘从电磁波吸收层3的端部推出。在这种情况下，推动宽度优选为0.5-1mm。此外，电磁波吸收体的制造方法具有电磁波层3被绝缘基板1密封的过程。版权所有（C）2007，JPO＆INPIT

32. 发明专利

JP2007019287A Dielectric loss material and electromagnetic wave absorber using it 审中-公开
标题翻译：使用它的电介质损耗材料和电磁波吸收器
公开(公告)号：JP2007019287A
公开(公告)日：2007-01-25
申请号：JP2005199702
申请日：2005-07-08
申请人： Denki Kagaku Kogyo Kk , 電気化学工業株式会社
发明人： OKADA TAKUYA , YAMASHITA MASAMI , SUGINO JUNJI
IPC分类号： H05K9/00 , B32B27/00 , H01F1/00 , H01Q17/00
摘要： PROBLEM TO BE SOLVED: To provide a lightweight dielectric loss material exhibiting an excellent electromagnetic wave absorption characteristic having a wide absorption frequency band in a high frequency band, and an electromagnetic wave absorber using it. SOLUTION: This dielectric loss material contains: 10-70 vol.% of an electrically conductive material having a conductivity ≥5×10 -6 S/cm and ≤1×10 3 S/cm; and an insulating material. The electrically conductive material is at least one selected from among boron carbide, electrically conductive carbon powder, and silicon carbide, the electrically conductive carbon powder is more preferably boron solution carbon black, and the insulating material is preferably a thermosetting resin. The electromagnetic wave absorber is a sheet having dielectric loss using the above-mentioned dielectric loss material, or it is formed by laminating the above-mentioned sheet having dielectric loss and a sheet having magnetic loss. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有在高频带中具有宽吸收频带的优异电磁波吸收特性的轻质介电损耗材料和使用它的电磁波吸收体。解决方案：该介电损耗材料包含：10-70体积％的导电材料，其导电率≥5×10 -6 S / cm和≤1×10 3 S /厘米; 和绝缘材料。导电性材料是选自碳化硼，导电性碳粉末和碳化硅中的至少一种，导电性碳粉末更优选为硼溶液炭黑，绝缘材料优选为热固性树脂。电磁波吸收体是使用上述介电损耗材料的介电损耗的片材，也可以通过层压上述具有介电损耗的片材和具有磁损耗的片材而形成。版权所有（C）2007，JPO＆INPIT

33. 发明专利

JP2005347307A Electromagnetic wave absorber 审中-公开
标题翻译：电磁波吸收器
公开(公告)号：JP2005347307A
公开(公告)日：2005-12-15
申请号：JP2004161696
申请日：2004-05-31
申请人： Denki Kagaku Kogyo Kk , 電気化学工業株式会社
发明人： KAWASAKI TAKU , OKADA TAKUYA , YAMASHITA MASAMI , SUGINO JUNJI
IPC分类号： C08K3/08 , C08K3/38 , C08L101/00 , H01F1/00 , H01F1/147 , H01F1/26 , H01F1/37 , H05K9/00
摘要： PROBLEM TO BE SOLVED: To provide an electromagnetic wave absorber having excellent electromagnetic wave absorption characteristics. SOLUTION: The electromagnetic wave absorber contains 10-70 vol.% of a mixed powder which comprises a boron carbide powder having an electric conductivity of 5×10 -6 S/cm or more and a soft magnetic material powder having a coercive force of 0.1-1,000 A/m and a matrix material as a remaining part. It contains 5-60 vol.% of the boron carbide powder and 2-40 vol.% of the soft magnetic material powder. The matrix material is preferably made of thermoplastic resin, and the electromagnetic wave absorber is suitable for a wideband mobile access system. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供具有优异的电磁波吸收特性的电磁波吸收体。解决方案：电磁波吸收剂含有10-70体积％的混合粉末，其包含导电率为5×10 -6 -6 / S·S / cm以上的碳化硼粉末和具有0.1-1,000A / m的矫顽力的软磁性材料粉末和作为剩余部分的基质材料。它含有5-60体积％的碳化硼粉末和2-40体积％的软磁性材料粉末。基体材料优选由热塑性树脂制成，电磁波吸收体适用于宽带移动接入系统。版权所有（C）2006，JPO＆NCIPI

34. 发明专利

JPH07226042A MAGNETIC HEAD 失效
公开(公告)号：JPH07226042A
公开(公告)日：1995-08-22
申请号：JP1764294
申请日：1994-02-14
申请人： DENKI KAGAKU KOGYO KK
发明人： SHIMOKOSHI MASAYOSHI , YAMASHITA MASAMI , SUENAGA TADATOSHI
IPC分类号： G11B21/21
摘要： PURPOSE:To provide a magnetic head having a low load, low mounting height and high strength and to facilitate mounting of the magnetic head to a stationary disk device by inclining an easily bendable elastic part toward the magnetic recording medium side surface more than the extension plane of a fixing part in the direction of a head body part. CONSTITUTION:The easily bendable elastic part 3 of a supporting part 2 of the magnetic head inclines at an angle (a) of inclination toward the magnetic recording medium side surface more than the extension surface of the fixing part 4 in the direction of the head body part. Its fixing part 4 is formed out of a hardly deformable material and is fixed to the magnetic head mounting part of a magnetic disk device. At this time, the elastic part 3 is composed of the easily bendable material and is easily deformed to sink by a press distance dmm from the position where load is intrinsically not applied on the magnetic head. The elastic part stabilizes when the distance between the rear surface of the magnetic head mounting part 5 and the magnetic disk surface attains Zmm. The angle (a) of inclination is preferably 1 to 8 deg. and more preferably

35. 发明专利

JPH0534726B2 失效
公开(公告)号：JPH0534726B2
公开(公告)日：1993-05-24
申请号：JP22028383
申请日：1983-11-23
申请人： NIPPON BIKUTAA KK , DENKI KAGAKU KOGYO KK
发明人： KANESHIRO TOSHIO , OKANO KEIGO , KAWANO KENJI , TAKENO HIROSHI , YAMASHITA MASAMI , ANDO TOSHIHIRO
IPC分类号： G11B5/716 , C09D5/23 , C09D7/12

36. 发明专利

JPS63303063A PRODUCTION OF MAGNETIC RECORDING CYLINDRICAL MEDIUM 失效
公开(公告)号：JPS63303063A
公开(公告)日：1988-12-09
申请号：JP13329587
申请日：1987-05-30
申请人： DENKI KAGAKU KOGYO KK
发明人： YAMASHITA MASAMI , SAWA HIROAKI , TANAKA TOMOSHI
IPC分类号： C23C14/34
摘要： PURPOSE:To form uniform magnetic metallic films on the surfaces of cylindrical base bodies with good productivity by disposing two sheets of targets to face each other and disposing the base bodies around the targets in parallel with the central axes of the two targets. CONSTITUTION:Magnets 2 for impressing plasma focusing magnetic fields are fixed on the rear sides of, for example, the targets 1A, 1B facing each other. The above-mentioned targets and magnets are supported by stainless steel holders 3 and are airtightly fixed via insulators 4 to a bell-jar 5. The side faces of the holders are covered by shielding plates 6. 12 Pieces of the Al cylinders 9 are disposed around the targets 1A, 1B in respectively parallel with the central axes of the targets and are made rotatable by means of gears 10. The inside of the jar 5 is evacuated to a vacuum through a discharge port 8. Gaseous Ar is introduced into the jar through an introducing port 7 and sputtering is executed by impressing a negative DC voltage to the holders 3 so that magnetic layers consisting of a Co-Pt alloy, etc., are formed on the surfaces of the cylinders 9.

37. 发明专利

JPS63136318A MAGNETIC RECORDING MEDIUM 失效
公开(公告)号：JPS63136318A
公开(公告)日：1988-06-08
申请号：JP28187386
申请日：1986-11-28
申请人： DENKI KAGAKU KOGYO KK
发明人： YAMASHITA MASAMI , IWATO NOBORU , OZAWA MICHIHIDE
IPC分类号： G11B5/72 , G11B5/64 , G11B5/66 , G11B5/73 , G11B5/738
摘要： PURPOSE:To permit recording and reproducing at a high density by laminating laminates consisting of magnetic layers and carbonaceous protective layers in at least two stages on a substrate. CONSTITUTION:A 1st magnetic layer 3 is provided on the surface of the substrate 1 or the surface of an underlying layer 2 and a 1st carbonaceous protective layer 4 is provided thereon by a sputtering method or plasma polymn. method. The thickness of the 1st magnetic layer 3 is characteristic in a 100-1,000Angstrom range per layer and the thickness of the carbonaceous protective layer 4 is preferably in a 50-1,000Angstrom range per layer. The 2nd magnetic layer 5 is then provided by a sputtering method on the 1st carbonaceous protective layer 4 and further, the 2nd carbonaceous protective 6 is provided on the 2nd magnetic layer 5. The 3rd magnetic layer and the 3rd carbonaceous protective layer may be provided thereon and the repetition of such formation is equally satisfactory. The high density recording and reproducing are thereby permitted.

38. 发明专利

JPS62236116A MAGNETIC RECORDING MEDIUM 失效
公开(公告)号：JPS62236116A
公开(公告)日：1987-10-16
申请号：JP7929686
申请日：1986-04-08
申请人： DENKI KAGAKU KOGYO KK
发明人： YAMASHITA MASAMI , NITTA AKIRA , IWATO NOBORU
IPC分类号： G11B5/66 , G11B5/64 , G11B5/706 , G11B5/73 , G11B5/738
摘要： PURPOSE:To enable high-density recording by providing a magnetic layer consisting of a cobalt-platinum alloy on the substrate layer consisting essentially of chromium and formed on a substrate, and furnishing a protective layer having 200-1,500Angstrom thickness and consisting of a carbonaceous material on the magnetic layer. CONSTITUTION:The substrate layer consisting essentially of chromium is provided on the substrate, the magnetic layer consisting of a cobalt-platinum alloy is furnished on the substrate layer, and the protective layer having 200-1,500Angstrom thickness and consisting of a carbonaceous material is provided on the magnetic layer. The magnetic layer consisting of a cobalt-platinum alloy is preferably deposited by sputtering. The cobalt-platinum alloy is preferably composed of 70-98atom% cobalt and 2-30atom% platinum. As a result, high-density recording is made possible.

39. 发明专利

JPS60111335A MAGNETIC STORAGE MEDIUM 失效
公开(公告)号：JPS60111335A
公开(公告)日：1985-06-17
申请号：JP21866183
申请日：1983-11-22
申请人： DENKI KAGAKU KOGYO KK
发明人： ANDOU TOSHIHIRO , IMAI EIKICHI , YAMASHITA MASAMI , TAKENO HIROSHI
IPC分类号： G11B5/66 , C09D183/04 , C10M107/50 , C10N40/18 , G11B5/64 , G11B5/72 , G11B5/725 , G11B5/73
摘要： PURPOSE:To obtain a medium for a magnetic recording tape, drum or disc having excellent resistance to wear by consisting the medium of a lower layer which is a base body consisting of an org. high polymer material or a non-magnetic metallic material, an intermediate layer consisting of a thin ferromagnetic metallic film or an intermediate layer consisting of the thin ferromagnetic metallic film and protective film and an upper layer consisting of a specific lubricant layer. CONSTITUTION:A titled medium is constituted of a lower layer which is a base body consisting of an org. high polymer material or a non-magnetic metallic material, an intermediate layer consisting of a thin ferromagnetic metallic film or the thin ferromagnetic metallic film and protective film and an upper layer consisting of the lubricant film expressed by the formula. The thin film of the lubricating agent expressed by the formula is formed via or without the protective film on the thin ferromagnetic metallic film in the above-mentioned way, by which the wear resistance is improved, the spacing loss is decreased and the decrease in the output particularly in a high recording frequency range is lessened and therefore high recording density is made possible and S/N is increased. R in the formula is 1-8C residual alkyl group or H, 0

40. 发明专利

JPS60109024A MAGNETIC STORAGE MEDIUM 失效
公开(公告)号：JPS60109024A
公开(公告)日：1985-06-14
申请号：JP21602483
申请日：1983-11-18
申请人： DENKI KAGAKU KOGYO KK
发明人： ANDOU TOSHIHIRO , IMAI EIKICHI , YAMASHITA MASAMI , TAKENO HIROSHI
IPC分类号： G11B5/66 , C09D183/04 , C10M107/50 , C10N40/18 , G11B5/64 , G11B5/72 , G11B5/725 , G11B5/73
摘要： PURPOSE:To obtain a magnetic tape, magnetic disc, etc. which are particularly excellent in wear resistance and are best suitable for image recording, sound recording, a computer, etc. by providing a thin film consisting of a specific polydimethyl siloxane compd. on a thin ferromagnetic metallic film or the protective film provided thereon. CONSTITUTION:The compd. expressed by the formula (1

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