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1. 发明专利

JPS6320712B2 失效
公开(公告)号：JPS6320712B2
公开(公告)日：1988-04-28
申请号：JP9462280
申请日：1980-07-11
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KODAMA TADASHI , SHIBUYA ATSUSHI , KAGEYAMA HARUMICHI , OBARA WATARU , MATSUNAGA KAZUO
IPC分类号： B41J2/28 , B41J2/26

2. 发明专利

JPS55154177A PRINTER 失效
公开(公告)号：JPS55154177A
公开(公告)日：1980-12-01
申请号：JP6213979
申请日：1979-05-22
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： ISOBE MINORU , KIKUCHI KOU , MINEMOTO SHIGEKI , KODAMA TADASHI , OBARA WATARU
IPC分类号： B41J2/30 , B41J2/22 , B41J2/24 , B41J9/24 , B41J9/52 , G06K15/10
摘要： PURPOSE:To improve the quality of printing by changing the driving time of a printing magnet in correspondence to the total number of magnets driving simultaneously and thereby stabilizing the operation of a printing element constantly. CONSTITUTION:When printing data signals PD1-PD7 are supplied, the total number of printing magnets energized simultaneously is detected by a driving magnet total number detecting circuit 1 and any one of driving quantity signals N1-N3 is outputted. AND gates AG8-AG10 are provided for generating a driving signal for time corresponding to the total number of printing magnets energized simultaneously, sending out selectively the time signal for a longer time as the total number of magnets energized simultaneously increases. Such a time signal joins in AND gates AG1-AG7 through an OR gate OG1 and, gating the printing data signals PD1-PD7, controls the time for impressing driving signals DV1-DV7 on to a printing magnet driving circuit 3.

3. 发明专利

JPS5215714A TYPE HEAD 失效
公开(公告)号：JPS5215714A
公开(公告)日：1977-02-05
申请号：JP9114875
申请日：1975-07-28
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OBARA WATARU , MIZUNO SHIGERU , HIRAOKA YUUJI
IPC分类号： B41J1/54 , B41J1/32

4. 发明专利

JPS61167570A ASSEMBLING OF PRINTING HEAD FOR DOT PRINTER 失效
公开(公告)号：JPS61167570A
公开(公告)日：1986-07-29
申请号：JP25505485
申请日：1985-11-15
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： ISOBE MINORU , KIKUCHI KO , TEJIMA MINORU , KODAMA TADASHI , OBARA WATARU
IPC分类号： B41J2/235 , B41J2/28
摘要： PURPOSE:To simplify assembling and adjusting by composing respectively a unit of springs and a unit of magnets, and by laminating these units one upon another. CONSTITUTION:An armature 9 is fixed to a ring shaped leaf spring 7 and a unit is made together with a printed wires 8. A permanent magnet 3 which is uniformly magnetized along its peripheral direction, and a magnet 4 and a core 2 to demagnetize the magnetic field of the above permanent magnet are integrally fixed on plate 1, and a secondary plate 5 is fixed to the above to constitute a unit. On the top of the magnet assembly a spacer 6 is placed, and the other assembly consisting of springs is placed on it, and then, a guide frame 10 to which a pin guide 11 is installed is mounted on these assemblies and these are screwed together.

5. 发明专利

JPS5649293A PRINTER 失效
公开(公告)号：JPS5649293A
公开(公告)日：1981-05-02
申请号：JP12397979
申请日：1979-09-28
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： ISOBE MINORU , HIROKI TOORU , KODAMA TADASHI , OBARA WATARU
IPC分类号： B41J33/38 , B41J33/388
摘要： PURPOSE:To facilitate lading of a cartridge by a method wherein a printing head, mounted on a carriage and capable of being advanced and retreated with respect to a platen, and the cartridge, having arm portions at both end portions thereof, are provided. CONSTITUTION:A distance between an one-way roller 7 as well as a ribbon protector 8 and a printing head 6 is widened and an ink ribbon 1, suspended linearly from one arm portion of a cartridge 3 to the other arm portion, is located at a position between the one-way roller 7 as well as the ribbon protector 8 and the printing head 6 without being contacted with the one-way roller 7, the ribbon protector 8 and the printing head 6. Subsequently, the printing head 6 is retreated to a position where the ink ribbon 1, being stretched from the one arm portion of the cartridge to the other arm portion thereof are not contacted, thereafter, the cartridge 3 is loaded.

6. 发明专利

JPS5627382A PAPER FEEDING DEVICE OF PRINTER 失效
公开(公告)号：JPS5627382A
公开(公告)日：1981-03-17
申请号：JP10390779
申请日：1979-08-15
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KODAMA TADASHI , OBARA WATARU , KITAGAWA TOSHIAKI , TAKEI GOROU
IPC分类号： B65H20/18 , B41J19/78 , B41J19/94
摘要： PURPOSE:To obtain the captioned device having a simple structure and being small- sized and light in weight by a method wherein one-way clutches and paper-guide arms for both feeding paper and preventing return, which shake, being geared with a carriage, are provided and thereby the paper is fed by a fixed quantity without being pressed excessively. CONSTITUTION:When the carriage 4 resciprocates in the axial direction thereof by the rotation of a driving shaft 3 driven by a motor 1, a feeder 6' and a paper guide arm 7 rotate in shaking unitedly round a support axis 7c. By the returning action of this reciprocation the paper 12 for printing is fed in a fixed quantity. When the paper 12 is pulled out in the direction reverse to the direction (r) of narrow feeding, the roller 6d of a one-way clutch 6 for feeding paper bites into the paper and, when the pressing force becomes large to some extent, an end member 7a rotates counterclockwise around a pin 7e against a spring 14. Similar action is mae in a one-way clutch 8 for prventing the reprogression of paper, thus damage of the parts of the clutches and the breakage of paper being prevented.

7. 发明专利

JPS55164171A PRINTING HEAD FOR DOT PRINTER 失效
公开(公告)号：JPS55164171A
公开(公告)日：1980-12-20
申请号：JP5692579
申请日：1979-05-11
申请人： OKI ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： ISOBE MINORU , KIKUCHI KOU , TEJIMA MINORU , KODAMA TADASHI , OBARA WATARU
IPC分类号： B41J2/28
摘要： PURPOSE:To simplify the usually troublesome assembling and adjustment of a printing head and reduce the size and cost of the printing head by a method wherein plural print wires and the armature for driving them are rendered to be a unit integral with a single leaf spring common to them. CONSTITUTION:A printing head is assembled as follows: a spacer 9 is placed on a magnet assembly; an armature 9 and a wire assembly are placed on the spacer 6; a guide frame 10 fitted with a pin guide 11 is arranged to cover the armature 9 and the wire assembly, allowing a print wire 8 to pass through the pin guide 11; and the guide frame 10 is fixed to the magnet assembly with screws. With the magnet coil 4 supplied with current, the coil 4 develops a magnetic field to cancel the field of a permanent magnet 3, and a print wire 8 is driven forward attending to the return motion of the split segments of a lead spring 7. Accordingly, selective supply of current to the magnet coil 4 results in printing of a desired dot pattern on the column.

8. 发明专利

JPS5292601A TYPE 失效
公开(公告)号：JPS5292601A
公开(公告)日：1977-08-04
申请号：JP746576
申请日：1976-01-28
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： HIRAOKA YUUJI , NISHIHATA MIKIO , KAGEYAMA YOUDOU , OBARA WATARU , OOTA TAKEO
IPC分类号： B41B1/00 , B41B5/00

9. 发明专利

JPS5274425A TYPE WHEEL 失效
公开(公告)号：JPS5274425A
公开(公告)日：1977-06-22
申请号：JP14947775
申请日：1975-12-17
申请人： NIPPON TELEGRAPH & TELEPHONE , OKI ELECTRIC IND CO LTD
发明人： NAKAGAWA MITSUO , KURIYAMA AKIUMI , OBARA WATARU , YOSHIDA AKINORI , SAITOU WATARU , KIMURA TOORU
IPC分类号： B41J1/32 , B41J1/24 , B41J1/54

10. 发明专利

JPS5843037B2 失效
公开(公告)号：JPS5843037B2
公开(公告)日：1983-09-24
申请号：JP10317179
申请日：1979-08-15
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KODAMA TADASHI , OBARA WATARU , IWAMA MITSUO , TADA SEIJI , ISOBE MINORU
IPC分类号： H01F7/04 , B41J2/28

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