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1. 发明专利

JPH0514993B2 失效
公开(公告)号：JPH0514993B2
公开(公告)日：1993-02-26
申请号：JP20049184
申请日：1984-09-27
申请人： CANON DENSHI KK
发明人： NISHIKAWA TATSUO
IPC分类号： G11B19/20 , G11B19/26 , G11B25/04

2. 发明专利

JPS60109090A MAGNETIC DISK DEVICE 失效
公开(公告)号：JPS60109090A
公开(公告)日：1985-06-14
申请号：JP21596383
申请日：1983-11-18
申请人： CANON DENSHI KK
发明人： NISHIKAWA TATSUO
IPC分类号： G11B33/12
摘要： PURPOSE:To facilitate maintenance and inspection by classifying control circuits of a magnetic disk device into three groups, arranging each group on one printed board, and arranging each printed board outside of the chassis of a device. CONSTITUTION:An index, a track position detecting, and a motor driving circuit, etc., are mounted on a printed board 65. Then, the read/write changeover switch, read amplifier, and write amplifier of a magnetic head are mounted on a substrate 113, and circuits which relate to interfaces and process signals from the substrates 65 and 113 are mounted on a substrate 114. Further, a connector 115 is provided to the substrates 65 and 113 and a connector 116 coupled with it is provided to the substrate 114 to make a connection among the substrates easily.

3. 发明专利

JPS58208920A MAGNETIC HEAD 失效
公开(公告)号：JPS58208920A
公开(公告)日：1983-12-05
申请号：JP8995182
申请日：1982-05-28
申请人： CANON DENSHI KK
发明人： NISHIKAWA TATSUO
IPC分类号： G11B5/39 , G11B5/127 , G11B5/29
摘要： PURPOSE:To raise a level of a reproducing output signal, and to prevent mixing of noise, by forming a main magnetic pole and a magnetic resistance effect element on one side and the other side of a substrate, respectively, by use of the same quality material as that of the main magnetic pole, and so as to be thinner than thickness of the main magnetic pole, in a magnetic head of a vertical magnetic recording and reproducing type. CONSTITUTION:A main magnetic pole 1 of a magnetic head of a vertical magnetic recording and reproducing type is provided on one face of a substrate 26, and a magnetic resistance effect (MR) element 27 is formed on the other face by use of the same material quality (Ni-Fe alloy, etc.) as the main magnetic pole, by thinning the thickness of the element to 0.05mu in case when thickness of the main magnetic pole 1 is 1mu, and at a distance (h) from an end face 26a of the substrate 26 by a pattern bent zigzag. An integrated circuit chip 28, a capacitor 32, etc. are provided on the element 1 side of the substrate 26, and are connected to the element 27 by use of short lead wire 29, respectively. In this way, it is possible to obtain a high reliability head which prevents mixing of noise from the outside, is high in its reproducing output signal level and scarcely causes a malfunction.

4. 发明专利

JPS5634494A PRINTER 失效
公开(公告)号：JPS5634494A
公开(公告)日：1981-04-06
申请号：JP11047679
申请日：1979-08-31
申请人： CANON KK , CANON DENSHI KK
发明人： NISHIKAWA TATSUO , OOKUBO KOUZOU , YOSHIDA HIROMI , HASEGAWA YUUICHI , KOBATA YOSHIHIRO
IPC分类号： B41J7/48 , B41J29/12 , B41J29/13 , B41J29/38
摘要： PURPOSE:To prevent erroneous action due to intrusion of dust into a unit printing type selecting mechanism, by covering and protecting the unit printing type selecting mechanism, which selectively stops the rotation of a unit printing type wheel, using a cover body. CONSTITUTION:A printing type selecting lever 28 and an electromagnetic trigger mechanism 220 of a unit printing type selecting mechanism that selectively stops the rotation of a unit printing type wheel 202 are covered and protected by a cover body 270, so that intrustion of dust of printing paper, other fine dust or the like into an armature 213 and yoke comb teeth 2143, 2144 is prevented.

5. 发明专利

JPS5634483A PRINTER 失效
公开(公告)号：JPS5634483A
公开(公告)日：1981-04-06
申请号：JP11048479
申请日：1979-08-31
申请人： CANON KK , CANON DENSHI KK
发明人： NISHIKAWA TATSUO , OOKUBO KOUZOU , YOSHIDA HIROMI , HASEGAWA YUUICHI , KOBATA YOSHIHIRO
IPC分类号： B41J11/62
摘要： PURPOSE:To prevent a blot or smear of ink and to secure paper feeding, by fixing a comb teethlike paper guide member in front of a platen with respective teeth of said member positioned in the corresponding spaces between unit printing type wheels, and by introducing a length of printing paper between said member and the platen. CONSTITUTION:In a platen mechanism is provided a smear preventing plate (a paper member) 417 that arranges a printing paper PP along a rubber rollers 406, 406, a platen holder 407 and a platen 401, and comblike teeth 4171 of the smear preventing plate 417 will be inserted into the corresponding spaces between units of a printing type wheel group 202 without tuoching to printing type portions when the platen mechanism is rotated to the maximum. Therefore the smear on the printing paper due to ink on printing types that are not desired or ink on portions where no printing type is present when the paper is fed will be prevented. Thus, while the smear preventing plate 417 can serve as a paper guide to arrange the printing paper PP along the platen 401 and the platen holder 407, it can prevent smear on the printing paper and also prevent jamming of the printing paper.

6. 发明专利

JPS5634474A PRINTER 失效
公开(公告)号：JPS5634474A
公开(公告)日：1981-04-06
申请号：JP11047779
申请日：1979-08-31
申请人： CANON KK , CANON DENSHI KK
发明人： NISHIKAWA TATSUO , OOKUBO KOUZOU , YOSHIDA HIROMI , HASEGAWA YUUICHI , KOBATA YOSHIHIRO
IPC分类号： B41J7/48 , B41J29/12
摘要： PURPOSE:To prevent the malfunction of mechanisms due to the infiltration of dust, by shielding and protecting digit type selection levers and their trigger mechanisms with a cover which functions to align the levers. CONSTITUTION:Digit type selection levers 208 for selectively stopping the rotation of digit type wheels 202 and the operating trigger mechanisms 220 of the levers are shielded and protected with a cover 270. Partition guide holes 2702, through which the tip claws 2081 of the levers 208 project, are provided in the front wall of the cover 270 so that the guide holes serve as guides for positioning the levers in their longitudinal direction. The claws 2081 are guided by the guide holes 2702 while the spacing of the claws is restricted. Partition guide slits 2704, through which the rear portions of the levers 208 project, are provided in the rear wall of the cover 270 to guide the levers 280 while restricting their spacings.

7. 发明专利

JPS5634473A SIGNAL DETECTOR FOR PRINTER 失效
公开(公告)号：JPS5634473A
公开(公告)日：1981-04-06
申请号：JP11047479
申请日：1979-08-31
申请人： CANON KK , CANON DENSHI KK
发明人： NISHIKAWA TATSUO , OOKUBO KOUZOU , YOSHIDA HIROMI , HASEGAWA YUUICHI , KOBATA YOSHIHIRO
IPC分类号： B41J7/48
摘要： PURPOSE:To absorb the errors of component parts and the irregularity of accuracy and accurately synchronize a passing type with a corresponding signal, by supporting the timing detection disc of a timing detector so that the installation angle of the disc to a driving shaft can be adjusted. CONSTITUTION:A cam 116 integrated with the cam shaft 103 of a timing detector for applying type selection timing during a type wheel selection period and a timing detection disc 115 having type signal generation perforated holes 1151 and a motor stop signal generating perforated hole 1152 along the peripheral edge of the disc are provided. A fitting screw insertion arc-shaped hole 1153 is opened in the detection disc 115. A screw 1154 is inserted into the hole 1153 to secure the detection disc 115 on a side of the cam 116 so that the installation angle of the disc to the cam can be adjusted. The factors of the errors of the detection disc 115, gears, etc. are absorbed by the adjustment to correct the errors. After the adjustment, the screw 1154 is tightened to integrally couple the detection disc 115 with the cam 116.

8. 发明专利

JPS5528809A PRINTING WHEEL SELECTION TYPE PRINTING APPARATUS 失效
公开(公告)号：JPS5528809A
公开(公告)日：1980-02-29
申请号：JP10135178
申请日：1978-08-19
申请人： CANON KK , CANON DENSHI KK
发明人： OOKUBO KOUZOU , KOBADA YOSHIHIRO , ASAKURA OSAMU , NISHIKAWA TATSUO
IPC分类号： B41J7/48 , B41J19/76 , B41J19/78
摘要： PURPOSE:To make a line feeding of paper to be printed securely with simple constitution by rotating printing paper feed roller by using return rotation force of platen lever. CONSTITUTION:Upon printing, platen lever 403 is inclined to printing wheels about an axis 402. At this time, an end 4161 of a pawl 416 is positioned between a pawl 4101 on the circumference of a gear 410 and next position 4102. After printing, platen lever 403 returns to the normal position. At this time, the pawl 4101 on the circumference of the gear 410 is encroached by an end of the pawl 416 and rotatably moved and then this rotation of the gear 410 by a tooth is transmitted to a gum roller axis 405 through teeth 411 413 412 and gum roller is rotated and paper feeding by a line is made. As each pawl of the gear 410 is lined in equal space, the gum roller is rotated by a determined angle every cycle.

9. 发明专利

JPS5374914A TYPEWRITER 失效
公开(公告)号：JPS5374914A
公开(公告)日：1978-07-03
申请号：JP15016376
申请日：1976-12-14
申请人： CANON KK , CANON DENSHI KK
发明人： NISHIKAWA TATSUO , KOBATA YOSHIHIRO
IPC分类号： B41J9/38 , B41J1/32 , B41J23/02

10. 发明专利

JPS5361432A TYPEWRITER 失效
公开(公告)号：JPS5361432A
公开(公告)日：1978-06-01
申请号：JP13594976
申请日：1976-11-12
申请人： CANON KK , CANON DENSHI KK
发明人： NISHIKAWA TATSUO , KOBATA YOSHIHIRO
IPC分类号： B41J1/32 , B41J7/96 , B41J29/18

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