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1. 发明专利

JPH06314421A MAGNETIC RECORDING MEDIUM 失效
公开(公告)号：JPH06314421A
公开(公告)日：1994-11-08
申请号：JP10543593
申请日：1993-05-06
申请人： KONISHIROKU PHOTO IND , TDK CORP
发明人： NAKANO YASUSHI , ITO TAKESHI
IPC分类号： G11B5/66 , G11B5/64 , G11B5/73 , G11B5/738
摘要： PURPOSE:To enhance wear and corrosion resistance by using polyimide resin contg. an inorg. or org. filler in a water-insoluble underlayer and specifying the thickness of the resin layer after drying and the average particle diameter of the filler when a ferromagnetic metallic thin film is formed on a nonmagnetic substrate with the underlayer in-between to obtain a magnetic recording medium. CONSTITUTION:A magnetic layer 2 is formed on the front side of a nonmagnetic substrate 1 with an underlayer 6 in-between and this magnetic layer 2 is protected with a protective layer 4. A lubricative layer 5 is formed on the protective layer 4 and a back coat layer 3 is stuck to the rear side of the substrate 1 to obtain a magnetic recording medium. In this structure, a fine particle- shaped filler such as colloidal silica dispersed in alcohol is incorporated into satd. polyester, polyamide or polyimide as the base of the underlayer 5 and the relation between the thickness (d) (nm) of the resin layer after drying and the average particle diameter (rm) of the filler is allowed to satisfy 65>(rm-d)>5. The substrate 1 is made free from high protrusions and the deterioration of electromagnetic transducing characteristics and the increase of drop- out are avoided.

2. 发明专利

JPH06208718A MAGNETIC RECORDING MEDIUM 失效
公开(公告)号：JPH06208718A
公开(公告)日：1994-07-26
申请号：JP33458592
申请日：1992-12-15
申请人： KONISHIROKU PHOTO IND , TDK CORP
发明人： ITO TAKESHI , NAKANO YASUSHI , MATSUZAWA TAKAHIRO
IPC分类号： G11B5/66 , C09D123/00 , C09D127/08 , C09D129/00 , C09D163/00 , C09D167/00 , C09D171/12 , C09D175/04 , C09D177/00 , G11B5/64 , G11B5/738
摘要： PURPOSE:To obtain a magnetic recording medium having excellent rust-proof performance and high electromagnetic conversion characteristics by forming a resin layer mainly comprising a resin having a specified composition on one surface/both surfaces of a nonmagnetic supporter in fixed thickness. CONSTITUTION:Resin layers 10, 11 in thickness of 0.05-2.0mum mainly comprising a resin having moisture permeability of 10.0X10 (g.cm)/(cm .sec.cmHg) or less are formed onto one surface of a nonmagnetic supporter 7. The resin layers 10, 11 are often shaped onto both surfaces of the supporter 7 as shown in Fig. (b), but a ferromagnetic metallic thin-film layer 12 is evaporated onto the resin layer 11 in either case, and a packing layer 13 is formed on the reverse side to the metallic thin-film layer 12. An overcoating layer 14 is further formed onto the metallic thin-film layer 12. The resin layer 11 is shaped of a substance mainly comprising a water insoluble resin containing fine particles of 0.01-0.1mum. Accordingly, a magnetic recording medium having excellent rust-proof performance and shelf stability and high electromagnetic conversion characteristics and little electromagnetic change characteristics even under a high temperature and high humidity is acquired.

3. 发明专利

JPH06208717A MAGNETIC RECORDING MEDIUM 失效
公开(公告)号：JPH06208717A
公开(公告)日：1994-07-26
申请号：JP32318992
申请日：1992-12-02
申请人： KONISHIROKU PHOTO IND , TDK CORP
发明人： ITO TAKESHI , NAKANO YASUSHI
IPC分类号： G11B5/66 , C09D177/00 , C09D179/08 , G11B5/73 , G11B5/738
摘要： PURPOSE:To obtain a magnetic recording medium having excellent abrasion resistance and corrosion resistance by forming a resin layer mainly comprising a saturated polyester resin having a specified composition on the side, where the magnetic recording constituting layer of a supporter is formed, and shaping the resin layer of a water insoluble resin containing fine particles having a specified diameter and a ferromagnetic metallic thin-film layer onto the resin layer. CONSTITUTION:Resin layers 6, 7 are formed onto a nonmagnetic supporter 1, and a magnetic layer 2 and a protective layer 4 are shaped onto the resin layer 7. A back coating layer 3 and a lubricating layer 5 onto the protective layer 4 are often formed. The resin layer 6 has the component of formula [O-R1 OCO-R2-CO]n mainly comprising a saturated polyester resin, and the resin layer 7 has a composition shown in formula [O-R3-CO]n using a water insoluble resin as a main component and comprises the fine particles of colloidal silica having particle size of 0.01-0.1mum. In formula, R1, R2, R3 represent two kinds of bivalent groups, which may have a substituting group, and an aliphatic group and an aromatic group, and R1, R2 may also be the same or differ. The magnetic layer 2 is formed in thickness of 500-10000Angstrom through a vacuum deposition method, etc., from a ferromagnetic metal such as Fe, Co, a Co-Ni alloy, etc.

4. 发明专利

JPH06208716A MAGNETIC RECORDING MEDIUM 失效
公开(公告)号：JPH06208716A
公开(公告)日：1994-07-26
申请号：JP32318892
申请日：1992-12-02
申请人： KONISHIROKU PHOTO IND , TDK CORP
发明人： ITO TAKESHI , NAKANO YASUSHI , MATSUZAWA TAKAHIRO
IPC分类号： G11B5/66 , C09D127/06 , C09D167/00 , C09D169/00 , C09D171/12 , C09D177/00 , C09D183/04 , G11B5/738
摘要： PURPOSE:To obtain a magnetic recording medium having excellent abrasion resistance and corrosion resistance by forming a water insoluble resin layer in specified thickness, a water insoluble resin layer in specified thickness containing fillers having fixed particle size on the water insoluble resin layer and a constituting layer comprising a ferromagnetic metallic thin-film layer onto the surface of a nonmagnetic supporter on the side, where a magnetic recording constituting layer is formed. CONSTITUTION:Water insoluble resin layers 6, 7 are shaped onto a nonmagnetic supporter 1, and a magnetic layer 2 and a protective layer 4 are formed onto the layer 7. A back coating layer 3 and a lubricating layer 5 are often formed. The resin layer 6 is formed in thickness of 0.05-1.0mum and the resin layer 7 in thickness of 0.0005-0.05mum, and silica having particle size of 0.01-0.1mum is contained in the resin layer 7 as fillers. The magnetic layer 2 is shaped through a vacuum deposition method, etc., in thickness of 500-10000Angstrom from Fe, Co, a Co-Ni alloy, etc. Accordingly, a magnetic recording medium having high abrasion resistance and strong corrosion resistance is acquired.

5. 发明专利

JPH06267060A MAGNETIC RECORDING MEDIUM 失效
公开(公告)号：JPH06267060A
公开(公告)日：1994-09-22
申请号：JP5572293
申请日：1993-03-16
申请人： KONISHIROKU PHOTO IND , TDK CORP
发明人： ITO TAKESHI
IPC分类号： G11B5/66 , G11B5/73 , G11B5/738 , G11B5/704
摘要： PURPOSE:To obtain a magnetic recording medium having a high abrasion resistance and an excellent corrosion resistance by a method wherein an intermediate layer of which the main component is resin having prescribed characteristics is formed in a prescribed thickness on one surface of a nonmagnetic substrate and a ferromagnetic metal thin film is provided on the intermediate layer. CONSTITUTION:An intermediate layer 6 is provided on a nonmagnetic substrate 1, a magnetic layer 2 is provided thereon and further a protective layer 4 is provided thereon. A back coat layer 3 may be provided and also a lubricating layer 5 is sometimes provided on the protective layer 4. The intermediate layer 6 provided on one surface of the substrate 1, of which the main component is resin which contains particles of an average particle size 0.01 to 0.1mum and has a water absorption rate of 0.05% or below, is formed to be 0.005 to 0.1mum thick. The magnetic layer 2 being a ferromagnetic metal thin film is formed on this intermediate layer 6. Thereby a medium being excellent in a rustproof performance, little deteriorated in a magnetic characteristic and an electromagnetic conversion characteristic even after storage at a high temperature and high humidity, little curled after the storage and excellent in a running property is obtained.

6. 发明专利

JPH06208715A MAGNETIC RECORDING MEDIUM 失效
公开(公告)号：JPH06208715A
公开(公告)日：1994-07-26
申请号：JP32318792
申请日：1992-12-02
申请人： KONISHIROKU PHOTO IND , TDK CORP
发明人： NAKANO YASUSHI , ITO TAKESHI , MATSUZAWA TAKAHIRO , MIHO HIROAKI , ITO KOICHI , HIRANO TADASHI
IPC分类号： G11B5/66 , C09D127/06 , C09D167/00 , C09D169/00 , C09D171/12 , C09D177/00 , C09D183/04 , G11B5/73 , G11B5/733 , G11B5/738
摘要： PURPOSE:To obtain a magnetic recording medium having strong abrasion resistance and high corrosion resistance by coating the surface of the nonmagnetic supporter of polyester with an organic solvent dissolving a polyester oligomer and forming an undercoating layer containing a water insoluble resin and fillers and a constituting layer comprising a ferromagnetic metallic thin-film layer. CONSTITUTION:A foundation layer 6 and an undercoating layer 7 are formed onto a nonmagnetic supporter 1, and a magnetic layer 2 is shaped onto the undercoating layer 7 and a protective layer 4 further onto the magnetic layer 2. A back coating layer 3 and a lubricating layer 5 may also be formed. A polyester oligomer is dissolved by using a solvent such as chloroform on the supporter 1 and a foundation is prepared and employed as the foundation layer 6, and the undercoating layer 7 is shaped onto the foundation layer 6 by a water insoluble resin such as poltethylene terephthalate while containing organic particles such as polystyrene, colloidal particles such as Al2O3 etc., as fillers. The magnetic layer 2 formed onto the undercoating layer 7 is shaped through a vacuum thin-film forming technique such as a vacuum deposition method from a ferromagnetic metallic material such as Fe, Co, a Co-Ni alloy, etc.

7. 发明专利

JP2003266707A INK-JET HEAD AND MANUFACTURING METHOD THEREFOR 审中-公开
公开(公告)号：JP2003266707A
公开(公告)日：2003-09-24
申请号：JP2002073356
申请日：2002-03-15
申请人： KONISHIROKU PHOTO IND
发明人： NISHI YASUO , ITO TAKESHI , NOMORI HIROYUKI
IPC分类号： B41J2/16
摘要： PROBLEM TO BE SOLVED: To provide an ink-jet head capable of preventing defects of shooting curve and shooting omission due to residual bubbles, and a manufacturing method therefor. SOLUTION: In the ink-jet head comprising a bonding layer 100 between a channel substrate 1 having a plurality of ink channels 10 and a nozzle plate 2 for covering above the ink channels 10 such that a plurality of nozzle holes 21 is formed in the nozzle plate 2 above the ink channels 10, the bonding layer end part position with the lower surface of the nozzle plate 2 and the upper surface of the bonding layer 100 contacted is present on the inner side with respect to the channel substrate 1 side wall position by X (X = average film thickness T of the bonding layer/Tan 60°) μm or more. COPYRIGHT: (C)2003,JPO

8. 发明专利

JP2002166556A INK JET HEAD AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2002166556A
公开(公告)日：2002-06-11
申请号：JP2000366695
申请日：2000-12-01
申请人： KONISHIROKU PHOTO IND
发明人： ITO TAKESHI
IPC分类号： B41J2/16 , B41J2/045 , B41J2/055
摘要： PROBLEM TO BE SOLVED: To provide a high quality ink jet head exhibiting excellent ink ejection performance by enhancing the wettability of an organic coating of a drive electrode to aqueous ink, and its manufacturing method. SOLUTION: In the ink jet head where driving walls 13 made of a piezoelectric material 1 and channel parts 12 are arranged alternately, a drive electrode 6 is provided on the driving wall 13 and ink in the channel part 12 is ejected by applying an electric field to the driving wall 13 through the drive electrode 6 thereby causing shear deformation of the driving wall 13, the drive electrode 6 is applied with an organic coating 7. The organic coating 7 has a carboxyl group or an amino group in the molecule of constitutional component and the existing ratio of carboxyl group or amino group satisfies following formula 1; 200

9. 发明专利

JP2002139808A RADIATION IMAGE READER AND RADIATION IMAGE READING METHOD 失效
公开(公告)号：JP2002139808A
公开(公告)日：2002-05-17
申请号：JP2000335914
申请日：2000-11-02
申请人： KONISHIROKU PHOTO IND
发明人： ITO TAKESHI , NAGATSUKA SUMIYA
IPC分类号： G03B42/02 , A61B6/00 , G06T1/00 , H04N1/04
摘要： PROBLEM TO BE SOLVED: To provide a radiation image reader and a radiation image reading method by which radiation image of higher quality can be formed by reading out the radiation image by using a proper reading condition. SOLUTION: When information on an object to be photographed such as body thickness, body weight, body fat content, age and sex distinction can be obtained, absorbance of radiation by the object to be photographed can be estimated. Since reading conditions of the radiation image can be determined by obtaining such information on the object to be photographed, proper photoelectric conversion can be performed by reading the radiation image according to the reading conditions.

10. 发明专利

JP2002067433A IMAGE OUTPUT UNIT 失效
公开(公告)号：JP2002067433A
公开(公告)日：2002-03-05
申请号：JP2000259076
申请日：2000-08-29
申请人： KONISHIROKU PHOTO IND
发明人： ITO TAKESHI , NAGATSUKA SUMIYA
IPC分类号： B41J29/42 , B41J29/00 , G06F3/12
摘要： PROBLEM TO BE SOLVED: To provide an image output unit for medical use which enables an image quality to be made sure wherever it is set and whether it is moved to be used. SOLUTION: This image output unit particularly for medical use has an image quality confirmation means for confirming the image quality of outputted hard copies or a monitor for displaying digital image data before outputted.

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