专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明专利

JPS55105858A FLOATING HEAD SLIDER 失效
公开(公告)号：JPS55105858A
公开(公告)日：1980-08-13
申请号：JP1034179
申请日：1979-02-02
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KOGURE KENJI , KITA TOSHIROU , NAKANISHI TAKUJI , TOSHIMA TOMOYUKI
IPC分类号： G11B21/21 , G11B5/58 , G11B5/60
摘要： PURPOSE:To avoid increment of the negative pressure although the rotational angle of the arm is increased by forming the width of the negative pressure generation surface of the floating head slider which is vertical to the magnetic recording medium surface in such way that the width may be increased gradually toward the running direction of the above medium surface. CONSTITUTION:Floating head slider 11 is provided on magnetic recording medium surface 6. Slider 11 contains taper surface 12 at the inflow end of the air, positive pressure generation surface 13 which generates the positive floating force, and negative pressure generation surface 14a which is formed to be broadened nearly in the linear way toward the running direction of surface 6. And border line 15a is formed between surfaces 13 and 14a, and angle theta' formed by line 15a is set nearly identical to the maximum value of angle theta which is formed with the longer direction of slider 11 caused by the arm's rotation and the inflow of the air. In such constitution, the variation can be minimized for the floating amount regardless of the change of angle theta, thus obtaining the steady floating characteristics.

72. 发明专利

JPS5480728A FLOATING HEAD SLIDER 失效
公开(公告)号：JPS5480728A
公开(公告)日：1979-06-27
申请号：JP14774877
申请日：1977-12-10
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKANISHI TAKUJI , TOSHIMA TOMOYUKI , KOGURE KENJI
IPC分类号： G11B5/84 , G11B5/60 , G11B17/32 , G11B21/21
摘要： PURPOSE:To efficiently remove even the small surface projections on a magnetic recording medium by forming a number of recesses in a slider surface. CONSTITUTION:A floating head slider 1 has its sides 2 and 2 formed with a number of recesses 2' and so on by the ion etching method so that even the small projections 5 due to the adhesion of the dusts on a magnetic recording medium 3 can be ground through the recesses 2' on the sides 2 and 2. As a result, the surface precision of the medium 3, from which the projections are ground efficiently, can be improved so that the satisfactory writing and rading operations of data can be accomplished.

73. 发明专利

JPS5474712A MAGNETIC HEAD 失效
公开(公告)号：JPS5474712A
公开(公告)日：1979-06-15
申请号：JP14167477
申请日：1977-11-28
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKANISHI TAKUJI , KOSHIMOTO YASUHIRO , KOGURE KENJI
IPC分类号： G11B21/12 , G11B5/54
摘要： PURPOSE:To perform loading and unloading to and from recording media with a simple reproduction by providing electromagnets which load or unload cores for recording and reproducing to or from the disc media through excitation. CONSTITUTION:At the stopping of disc media 9, a switch 7 is turned ON after or before stopping of the disc media 9 to flow current to windings 6 and energize cores 5 so that opposing upper and lower electromagnets 4 are mutually attracted, whereby respective gimbals 2 are deformed to detach cores 3 for recording and reproducing from the surfaces of the disc media 9. In this way, the attraction phenomenon of the cores 3 for recording and reproducing and the disc media 9 may always be prevented at the stopping of the disc media 9.

74. 发明专利

JPS5469414A MAGNETIC HEAD 失效
公开(公告)号：JPS5469414A
公开(公告)日：1979-06-04
申请号：JP13620077
申请日：1977-11-15
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NAKANISHI TAKUJI , KOGURE KENJI , KANEKO REIZOU
IPC分类号： G11B5/60 , G11B17/32 , G11B21/21
摘要： PURPOSE:To improve the floating follow-up characteristic of a magnetic head with a simple constitution by letting part of a viscoelastic circular tube for winding protecting be the point of contact between a loading arm and a gimbal. CONSTITUTION:The winding 7 of a head 1 is protected by a viscoelastic circular tube 6' such as of vinyl, etc. and is connected to the specified fixed contact via the inside of a loading arm 2. If this circular tube 6' is exposed from the recess 8 provided to the arm 2 and the exposed part is let to be the point of contact with the gimbal shaft 3 of the head 1, the flexible circular tube 6' acts as a damper, thus enabling the floating follow-up characteristic of the head 1 to be improved with the simple constitution.

75. 发明专利

JPS5423517A FLOATING HEAD SLIDER 失效
公开(公告)号：JPS5423517A
公开(公告)日：1979-02-22
申请号：JP8836977
申请日：1977-07-25
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KOGURE KENJI , NAKANISHI TAKUJI , TAGO AKIO , SATOU TOSHITAKE , TOSHIMA TOMOYUKI
IPC分类号： G11B5/60 , G11B17/32 , G11B21/21
摘要： PURPOSE:To prevent adsorption and sticking of recording medium face and slider face by defining the surface roughness of the slider to be put in contact with the recording medium at specific sizes.

76. 发明专利

JPS5339111A FLOATING HEAD SLIDER 失效
公开(公告)号：JPS5339111A
公开(公告)日：1978-04-10
申请号：JP11349776
申请日：1976-09-21
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KOGURE KENJI , MITSUYA YASUNAGA , NAKANISHI TAKUJI , TOSHIMA TOMOYUKI
IPC分类号： G11B21/21 , G11B5/60 , G11B17/32
摘要： PURPOSE:To facilitate working and increase the amount of floating by forming the influent end of a negative pressure generating surface with the same taper and stepped surface as the positive pressure generating surface and forming a divergent taper and stepping from the middle of the taper and stepping of the positive pressure generating surface.

77. 发明专利

JPH04343107A PATH START POINT DETECTION AND GUIDING METHOD 失效
公开(公告)号：JPH04343107A
公开(公告)日：1992-11-30
申请号：JP11476291
申请日：1991-05-20
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NONAKA KIYOSHI , KAKIZAKI TAKAO , KOGURE KENJI
IPC分类号： B25J9/10 , B25J13/08 , G05B19/19 , G05B19/4093 , G05B19/4103 , G05B19/42
摘要： PURPOSE:To guide an end effector to a path start point with a simple instruction method and a simple procedure. CONSTITUTION:Approximate values of the positions and attitudes of a path start point P1' and a point P2' on the same path near the point P1' are instructed. A linear function related to the space passing these two points is determined from these instruction data, and the function is extrapolated on this side of the point P1' to form a temporary access path 4. An end effector 2 and a path information detection means 4 are moved based on a temporary access path function 8 so that the path information detection means 4 can be located on this side of the point P1'. A path start point P1 is detected while controlling the position and attitude of the end effector 2. The m-th function related to the space smoothly connecting the path to a point P3 of the end effector 2 on the temporary access path 8 and the point P1 is obtained and is set as an access path function 9. Subsequently, the end effector 2 is smoothly led to the point P1 along an access path 9.

78. 发明专利

JPH0322666B2 失效
公开(公告)号：JPH0322666B2
公开(公告)日：1991-03-27
申请号：JP2735784
申请日：1984-02-17
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： OGUCHI SHIGEMITSU , MITSUYA YASUNAGA , KOGURE KENJI , HOSHITANI KUNIO
IPC分类号： G11B19/20 , G11B25/04

79. 发明专利

JPH02201736A METHOD AND DEVICE FOR REPRODUCING OPTICAL DISK 失效
公开(公告)号：JPH02201736A
公开(公告)日：1990-08-09
申请号：JP2182189
申请日：1989-01-30
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： IIJIMA TETSUO , KOGURE KENJI , YASUDA KYOSUKE
IPC分类号： G11B7/00 , G11B7/005 , G11B7/125
摘要： PURPOSE:To obtain a high quality regenerative signal without causing such a problem as a change or destruction of the state of a recording film due to reproducing power by pulse-modulating a beam of a laser, etc., and irradiating an optical disk with the modulated beam. CONSTITUTION:At the time of reproducing, the optical disk is irradiated with the pulse-modulated laser beam 2. Under this condition, when marks 3 and 3' are regenerated, detecting signals to be obtained are as waveforms 4 and 4', and wave height values 5 and 5' at this time are high values in accordance with the reproducing power. The regenerative signal obtained by passing an original signal for the above through a detector and a low pass filter which is usually used is as a waveform 6. This waveform 6 is a demodulated signal corresponding to V1-V2, having a high value according to the reproducing power. By this method, without causing the problem such as a change or destruction of the state of the recording film due to the reproducing power, the high quality regenerative signal can be obtained.

80. 发明专利

JPH02201733A METHOD AND DEVICE FOR OPTICAL DISK RECORDING 失效
公开(公告)号：JPH02201733A
公开(公告)日：1990-08-09
申请号：JP2182089
申请日：1989-01-30
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： IIJIMA TETSUO , YASUDA KYOSUKE , KOGURE KENJI , YAMAMOTO MANABU
IPC分类号： G11B7/00 , G11B7/0045 , G11B7/125 , G11B7/30
摘要： PURPOSE:To form an approximately circular amorphous mark with high quality and with less or no jitters by modulating light beams, and recording the beams in a state of the relative speed between the light beams and a recording film is approximately zero. CONSTITUTION:According to a certain clock signal 6, the light beam is applied with high-frequency modulation in the medium running direction. Signals 3 corresponding to an information string is recorded at certain timing synchronizing with the clock signal 6. At such a time, the recording timing is selected so that the relative speed between the recording film and the optical beams is sufficiently small or zero. Thus the circular amorphous mark can be recorded with less jitters, and when it is reproduced, the reproduced signal with high quality can be obtained.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式