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1. 发明专利

JPH1098140A MULTIPLE-CHIP TYPE SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPH1098140A
公开(公告)日：1998-04-14
申请号：JP25120296
申请日：1996-09-24
申请人： HITACHI LTD
发明人： FUKUMAKI TAKASHI , SAKURAI IZUMI , ISHIKAWA NORITOSHI , KODAMA HIRONORI , INOUE KOICHI
IPC分类号： H01L23/36 , H01L23/373
摘要： PROBLEM TO BE SOLVED: To improve the heat radiation effect and electric continuity by inserting an elastic multiple structure for absorbing the height dispersion between semiconductor chips which are different in height and heat radiating member and connecting the chips to the radiating member by a pressing force to contact them to one flat plate en bloc, without arranging their heights. SOLUTION: Semiconductor chips 1a, 1b, 1c, different in height are disposed on an Mo, W or Cu-C composite strain buffer board 2 having a thermal expansion coefficient equal to that of the semiconductor and mounted on a common collector electrode 3. On the semiconductor chips an Mo, W, or Cu-C composite strain buffer board 4, having a thermal expansion coefficient equal to that of the semiconductor, is disposed and covered with an elastic multiple structure 5 for absorbing steps. It is a double structure made of Cu pipes, such that the small-aperture pipe is inserted in the large-aperture one, made flat, with a center hollow space 6 formed in its contral part and connected to a common emitter electrode 7 thereon, allowing simultaneous connections to one common electrode.

2. 发明专利

JPH0887730A PRODUCTION OF MAGNETIC HEAD SLIDER WITH PIEZOELECTRIC ELEMENT 失效
公开(公告)号：JPH0887730A
公开(公告)日：1996-04-02
申请号：JP22450794
申请日：1994-09-20
申请人： HITACHI LTD
发明人： SUZUKI MASAYUKI , HIGUCHI SHINSUKE , ISHIKAWA NORITOSHI
IPC分类号： G11B5/60 , G11B21/21
摘要： PURPOSE: To produce a magnetic head slider with a small piezoelectric element. CONSTITUTION: A piezoelectric element 1 is bonded to ceramics 2 with an electrically conductive adhesive layer 4. The element 1 is disposed on an end face of a magnetic head slider on the outflow end side and the negative electrode face of the element 1 is bonded to the ceramics 2. Electrode layers 5 are formed on the positive electrode face of the element 1 and the end face of the slider on the inflow end side by vapor-depositing metallic films and signal wires 6 are soldered to the electrode layers 5. The objective magnetic head slider with a very small piezoelectric element is produced in a high yield.

3. 发明专利

JPH0737350A MAGNETIC DISK DEVICE AND METHOD FOR RECORDING AND REPRODUCTING MAGNETIC DISK 失效
公开(公告)号：JPH0737350A
公开(公告)日：1995-02-07
申请号：JP17926593
申请日：1993-07-20
申请人： HITACHI LTD
发明人： TANAKA HIDEAKI , ISHIKAWA NORITOSHI , SAITO YOKO , HIRANO TOSHINORI
IPC分类号： G11B21/20
摘要： PURPOSE:To obtain a contact-recording type magnetic disk device having high sliding reliability and a high recordingd density. CONSTITUTION:A mechanism 3, which adjusts a load, is provided in a supporting system 2 of a magnetic head 1, which does not have an air bearing surface. The load is controlled to a minimum value required to obtain the substantial contact state between the magnetic head 1 and a magnetic disk 4 at the time of recording and reproduction. The magnetic disk device, which can prevent damage csaued by sliding, and can obtain stable high output power.

4. 发明专利

JPH02111970A COPYING MACHINE PROVIDED WITH DENITRATING DEVICE AND PHOTO-PRINTER 失效
公开(公告)号：JPH02111970A
公开(公告)日：1990-04-24
申请号：JP26409488
申请日：1988-10-21
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： TAMAHASHI KUNIHIRO , ISHIKAWA NORITOSHI , KONUMA SHIGEHARU , WAKAGI MASATOSHI , HANAZONO MASANOBU , YAMAGISHI TOMOAKI
IPC分类号： B41J29/377 , B41J2/46 , G03G15/00 , G03G21/00 , G03G21/20
摘要： PURPOSE:To prevent generation of picture flowing in high humidity by decomposing or reducing nitrogen oxides generated by corona discharge with a catalyst. CONSTITUTION:A device for decomposing or reducing nitrogen oxides generated by corona discharge with a catalyst is provided. Meshed wire 23 is spread on an opening port of an electrifying device 2, and a catalyst for prompting denitration reaction is applied on the surface of the wire 23. Electric current is conducted through the wire 23 at the stage of starting the device, or at least just before the beginning of the corona discharge. By elevating the temp. of the wire 23 to a certain temp., NOx generated by the corona discharge is reduced to N2 and O2. Thus, a stable picture contg. no picture flowing is obtd. even under high humidity because no HNO3 is contained in the moisture content.

5. 发明专利

JPH01309085A ELECTROPHOTOGRAPHIC IMAGE FORMING DEVICE 失效
公开(公告)号：JPH01309085A
公开(公告)日：1989-12-13
申请号：JP13933688
申请日：1988-06-08
申请人： HITACHI LTD , HITACHI CHEMICAL CO LTD
发明人： YAMAGISHI TOMOAKI , SHIMAMURA YASUO , WAKAGI MASATOSHI , ISHIKAWA NORITOSHI , KONUMA SHIGEHARU , TAMAHASHI KUNIHIRO , HANAZONO MASANOBU
IPC分类号： G03G21/10 , G03G21/00
摘要： PURPOSE:To prevent a printing defect by equipping the title device with a cleaning mechanism for image forming and a cleaning mechanism dedicated to protective-film forming for cleaning the surface of a photosensitive body before a protective film is formed. CONSTITUTION:The cleaning mechanism 109 dedicated to protective-film forming is provided on the device to reduce the quantity of toner or paper dust remaining on the surface of the photosensitive body before the protective film is formed. That is, when image forming is completed, a developing unit is separated away from the surface of the photosensitive body to prevent the toner from adhering thereto by the cleaning mechanism 109. Then the toner is removed by the cleaning mechanism for image forming which operates immediately after an image is formed, and immediately before the protective film is formed, the cleaning mechanism dedicated to protective-film forming is brought into contact with the surface of the photosensitive body and performs cleaning for protective-film forming. As a result, the number of toner particles remaining on the surface of the photosensitive body is reduced to , thereby decreasing the number of defects which occur when the protective film is formed.

6. 发明专利

JPH01107272A ELECTROPHOTOGRAPHIC DEVICE 失效
公开(公告)号：JPH01107272A
公开(公告)日：1989-04-25
申请号：JP26383787
申请日：1987-10-21
申请人： HITACHI LTD
发明人： ISHIKAWA NORITOSHI , CHIKAZAKI MITSUO , TAMAHASHI KUNIHIRO , KONUMA SHIGEHARU , WAKAGI MASATOSHI , ONO TOSHIYUKI
IPC分类号： G03G21/20 , G03G15/00 , G03G21/00
摘要： PURPOSE:To prevent the distortion of an image from being caused by providing equipment for blowing a dry warm wind to an electrophotographic sensitive body, warming the surface of an electrophotographic sensitive body keeping it in low humidity. CONSTITUTION:An a-Si photosensitive body 1 rotates at constant speed and an electrostatic charger 2, an exposing unit 3, a developing unit 4, a transfer unit 5, a destaticizing lamp 6, a cleaning brush 7 and a warm wind blower 9 are arranged around the photosensitive body 1. The warm wind blower 9, arranged between the cleaning unit 7 and the electrostatic charger 2, blows the warm wind to the surface of the photosensitive body 1 after removing residual toner by the cleaning unit 7 so as to lower the humidity of the surface before electrification. Therefore, the warm wind blown to the surface of the photosensitive body before electrification prevents the decrease of the resistance of a surface protective layer and also the decrease of an ability for holding the surface charge. Thus, the distortion of the image can be prevented and the distinct image can be always obtained.

7. 发明专利

JPS64961A ELECTROPHOTOGRAPHIC SENSITIVE BODY 失效
公开(公告)号：JPS64961A
公开(公告)日：1989-01-05
申请号：JP15547787
申请日：1987-06-24
申请人： HITACHI LTD
发明人： TAMAHASHI KUNIHIRO , ISHIKAWA NORITOSHI , KONUMA SHIGEHARU , WAKAGI MASATOSHI , ONO TOSHIYUKI , CHIKAZAKI MITSUO
IPC分类号： G03G5/08 , G03G5/082 , G03G5/147
摘要： PURPOSE:To prevent oxidation due to corona and to enhance humidity resistance by forming an amorphous carbon film containing H and F in a specified F/C ratio on the uppermost surface of a photosensitive body and protecting the surface with the C, F, and C. CONSTITUTION:The film of the amorphous carbon containing H, F, and Si having a-C:F:H in an F/C atomic ratio of 0.4-2 is formed on the uppermost surface of the photosensitive body, thus permitting said film to be hardly oxidazable even during corona charging and maintained high in water repellency on the surface under high humidity, and accordingly, to form a sharp image, and greatly enhanced in humidity resistance and in corona resistance by regulating the F/C atomic ratio.

8. 发明专利

JPS63191152A ELECTROPHOTOGRAPHIC SENSITIVE BODY AND ELECTROPHOTOGRAPHIC METHOD 失效
公开(公告)号：JPS63191152A
公开(公告)日：1988-08-08
申请号：JP2236187
申请日：1987-02-04
申请人： HITACHI LTD
发明人： ONO TOSHIYUKI , TAMAHASHI KUNIHIRO , CHIKAZAKI MITSUO , KONUMA SHIGEHARU , ISHIKAWA NORITOSHI , WAKAGI MASATOSHI
IPC分类号： G03G5/08 , G03G5/082
摘要： PURPOSE:To prevent blurring of imaging by providing a surface protective layer consisting of an amorphous carbon film contg. fluorine on a photoconductive layer. CONSTITUTION:The surface protective layer consisting of the amorphous carbon film contg. the fluorine is provided on the photoconductive layer. The fluorine and carbon are bonded in this amorphous carbon contg. the fluorine and since the bonding strength thereof is extremely strong, a carbonyl group of C=0 is not formed or is hardly formed. The state in which the layer is hardly wetted with water is thereby maintained long and the blurring of imaging is prevented.

9. 发明专利

JPS6331541B2 失效
公开(公告)号：JPS6331541B2
公开(公告)日：1988-06-24
申请号：JP10526883
申请日：1983-06-13
申请人： HITACHI LTD
发明人： KOZOBARA HIROMI , KURODA TETSUO , SAKAMOTO MASAHIKO , ISHIKAWA NORITOSHI , IIZUKA NOBUYUKI
IPC分类号： C22C19/07 , C22F1/00 , C22F1/10 , F01D9/02

10. 发明专利

JPS61501A FORGING METHOD OF MEMBER OBTAINED BY COMPACTING NI-BASE SUPERALLOY 失效
公开(公告)号：JPS61501A
公开(公告)日：1986-01-06
申请号：JP11996384
申请日：1984-06-13
申请人： HITACHI LTD
发明人： OKAYAMA AKIRA , YASUDA TAKESHI , ISHIKAWA NORITOSHI , KURODA TETSUO
IPC分类号： B22F3/02 , B22F3/17 , C22C1/04 , C22F1/00 , C22F1/10
摘要： PURPOSE:To forge excellently a member obtained by compacting Ni-base superalloy powder by inserting a compacted member into a metallic can, and forging the member while keeping the compacted member out of direct contact with the metallic die. CONSTITUTION:A member 1 obtained by compacting an Ni-base superalloy is inserted into a metallic can 2 made of SUS, etc., and heat-resistant wool 3, etc. is packed into both ends of the metallic can 2 and pressed. Then the hot forging is carried out. The thickness of the metallic can 2 is preferably regulated to 5-30% of the diameter of the compacted member 1. By this method, the temp. of the compacted member 1 is not lowered by direct contact with a forging metallic die, and the compacted member 1 of Ni-base superalloy powder which is hard to forge with the conventional method can be excellently forged without generating any cracks, etc.

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