公开(公告)号：US4439794A

公开(公告)日：1984-03-27

申请号：US264706

申请日：1981-05-18

申请人： Yoshihiro Shiroishi ,  Hideo Fujiwara ,  Takeshi Kimura ,  Noriyuki Kumasaka ,  Nobuo Kobayashi ,  Takeo Yamashita ,  Teizo Tamura ,  Hideo Zama ,  Mitsuhiro Kudo ,  Tsutomu Iimura

发明人： Yoshihiro Shiroishi ,  Hideo Fujiwara ,  Takeshi Kimura ,  Noriyuki Kumasaka ,  Nobuo Kobayashi ,  Takeo Yamashita ,  Teizo Tamura ,  Hideo Zama ,  Mitsuhiro Kudo ,  Tsutomu Iimura

IPC分类号： G11B5/127 ,  G11B5/133 ,  G11B5/187 ,  G11B5/193 ,  G11B5/23 ,  G11B5/251 ,  G11B5/14

CPC分类号： G11B5/133 ,  G11B5/193

摘要： A magnetic head which uses single crystal Mn-Zn ferrite containing up to 7% by weight of SnO.sub.2 occluded therein without being allowed to separate and which has such a construction that glass having a contraction rate lower than that of ferrite is filled in the narrowed portion near the gap, the plane forming the principal magnetic circuit of the core is allowed to coincide with the {110} plane of the ferrite and an angle .theta. between the direction inside the {110} plane of the ferrite and the gap-forming plane is from 5.degree. to 40.degree. or 85.degree. to 120.degree.. The magnetic head having such a construction has a reduced modulation noise and extremely excellent write-and-read characteristics.

摘要翻译： 使用含有高达7重量％的SnO 2的单晶Mn-Zn铁氧体的磁头，其不被分离，并且具有这样的结构，即将收缩率低于铁素体的玻璃填充到变窄部分 在间隙附近，形成芯的主磁路的平面允许与铁素体的{110}平面和铁氧体的{110}平面内的<100>方向之间的角度θ与间隙 - 成型面为5°〜40°或85°〜120°。 具有这种结构的磁头具有降低的调制噪声和极好的写和读特性。

公开(公告)号：US4803338A

公开(公告)日：1989-02-07

申请号：US777

申请日：1987-01-06

申请人： Noriyuki Kumasaka ,  Shigekazu Otomo ,  Takeo Yamashita ,  Hideo Zama ,  Juichi Morikawa

发明人： Noriyuki Kumasaka ,  Shigekazu Otomo ,  Takeo Yamashita ,  Hideo Zama ,  Juichi Morikawa

IPC分类号： G11B5/23 ,  G11B5/127 ,  G11B5/147 ,  G11B5/187 ,  G11B5/21 ,  G11B5/22 ,  G11B5/25

CPC分类号： G11B5/21 ,  G11B5/187

摘要： In a magnetic head employing a metallic ferromagnetic material for portions defining a transducing gap, an oxide film or carbide film and a nonmagnetic metal film are provided in this order on each of track width narrowing grooves, and glass is packed on the nonmagnetic metal film, thereby preventing the deteriorations of magnetic characteristics ascribable to the reaction between the metallic ferromagnetic material and the glass and the production of bubbles ascribable to the reaction between the protective films and the glass, and to achieve the enhancements of recording and reproducing characteristics, the prevention of damages to a recording medium surface, the increase of a head lifetime and the rise of the available percentage of manufacture of the heads. When a glass film is further provided on the nonmagnetic metal film and the glass is packed thereon, more excellent effects are achieved.

摘要翻译： 在用于限定换能间隙的部分的金属铁磁材料的磁头中，依次在每个轨道宽度变窄槽上设置氧化膜或碳化物膜和非磁性金属膜，玻璃填充在非磁性金属膜上， 从而防止归因于金属铁磁材料和玻璃之间的反应的磁特性的劣化以及由于保护膜和玻璃之间的反应引起的气泡的产生，并且为了实现记录和再现特性的增强，防止 对记录介质表面的损坏，头部寿命的增加和头部制造的可用百分比的上升。 当在非磁性金属膜上进一步设置玻璃膜并且玻璃被包装在其上时，获得更好的效果。

公开(公告)号：US06339676B1

公开(公告)日：2002-01-15

申请号：US09551911

申请日：2000-04-19

申请人： Nobutaka Amada ,  Hitoaki Owashi ,  Takaharu Noguchi ,  Noriyuki Kumasaka ,  Hideo Zama

发明人： Nobutaka Amada ,  Hitoaki Owashi ,  Takaharu Noguchi ,  Noriyuki Kumasaka ,  Hideo Zama

IPC分类号： H04N5782

CPC分类号： H04N5/78213 ,  G11B5/0086 ,  G11B5/00878 ,  G11B15/02 ,  G11B15/125 ,  G11B15/1875 ,  G11B15/4671 ,  G11B15/4672 ,  G11B15/4731 ,  H04N5/78266 ,  H04N9/7921 ,  H04N9/8042 ,  H04N9/83

摘要： An apparatus for recording and reproducing a digital video signal on and from a common recording medium by using the head configuration common to the conventional one while maintaining exchangeability with the current analog VTR. An analog video and audio signals are recorded and reproduced on and from an video track and an underlying deep-layer track, respectively, by means of magnetic heads and magnetic heads. On the other hand, a digital video and audio signal is recorded and reproduced on and from two adjacent tracks by means of the magnetic heads for analog audio recording. During reproduction, an identification signal generating circuit generates an identification signal for discriminating a recorded signal, and a control signal is PWM modulated with the identification signal and recorded on a control track by means of a magnetic head.

摘要翻译： 一种用于通过使用与常规记录介质共同的头部配置，同时保持与当前模拟VTR的可交换性来在普通记录介质上记录和再现数字视频信号的装置。 模拟视频和音频信号通过磁头和磁头分别在视频轨道和下层深层磁道上记录和再现。 另一方面，通过用于模拟音频记录的磁头，数字视频和音频信号被记录和再现在两个相邻轨道上。 在再现期间，识别信号发生电路产生用于识别记录信号的识别信号，并且利用识别信号对控制信号进行PWM调制，并通过磁头记录在控制轨道上。

公开(公告)号：US6104862A

公开(公告)日：2000-08-15

申请号：US568470

申请日：1995-12-07

申请人： Nobutaka Amada ,  Hitoaki Owashi ,  Takaharu Noguchi ,  Noriyuki Kumasaka ,  Hideo Zama

发明人： Nobutaka Amada ,  Hitoaki Owashi ,  Takaharu Noguchi ,  Noriyuki Kumasaka ,  Hideo Zama

IPC分类号： G11B5/008 ,  G11B15/02 ,  G11B15/12 ,  G11B15/18 ,  G11B15/467 ,  G11B15/473 ,  H04N5/782 ,  H04N5/7826 ,  H04N9/79 ,  H04N9/804 ,  H04N9/83 ,  H04N5/928

CPC分类号： H04N5/78213 ,  G11B15/02 ,  G11B15/125 ,  G11B15/1875 ,  G11B15/4672 ,  G11B15/4731 ,  G11B5/0086 ,  G11B5/00878 ,  H04N9/7921 ,  H04N9/8042 ,  G11B15/4671 ,  H04N5/78266 ,  H04N9/83

摘要： An apparatus for recording and reproducing a digital video signal on and from a common recording medium by using the head configuration common to the conventional one while maintaining exchangeability with the current analog VTR. An analog video and audio signals are recorded and reproduced on and from an video track and an underlying deep-layer track, respectively, by means of magnetic heads and magnetic heads. On the other hand, a digital video and audio signal is recorded and reproduced on and from two adjacent tracks by means of the magnetic heads for analog audio recording. During reproduction, an identification signal generating circuit generates an identification signal for discriminating a recorded signal, and a control signal is PWM modulated with the identification signal and recorded on a control track by means of a magnetic head.

公开(公告)号：US5193045A

公开(公告)日：1993-03-09

申请号：US723182

申请日：1991-06-28

申请人： Masanori Kochi ,  Juichi Morikawa ,  Hideo Zama ,  Makoto Ibe

发明人： Masanori Kochi ,  Juichi Morikawa ,  Hideo Zama ,  Makoto Ibe

IPC分类号： G11B5/008 ,  G11B5/02 ,  G11B5/53 ,  G11B33/08

CPC分类号： G11B5/53 ,  G11B5/0086 ,  G11B5/531 ,  G11B33/08

摘要： A flying erase head for flying erasing which is used for improving the picture quality is provided on a rotating drum so as to be spaced substantially 180 degrees from the video head having first and second video head chips integrally fixed on a video head base. Therefore, a high picture-quality helical scan type magnetic recording and/or reproducing apparatus can be provided which is able to prevent the picture quality from being deteriorated by the vibration of the video head due to the rotation, and to satisfactorily make the over-writing on the tape and the assemble mode operation upon recording.

摘要翻译： 用于提高图像质量的用于飞行擦除的飞行擦除头被提供在旋转鼓上，以便与具有整体固定在视频头部基座上的第一和第二视频头芯片的视频头基本上成180度。 因此，可以提供高画质的螺旋扫描型磁记录和/或再现装置，其能够防止图像质量由于旋转而由于视频头的振动而劣化，并且令人满意地使得图像质量 在录音时写入磁带和组合模式操作。

公开(公告)号：US5126906A

公开(公告)日：1992-06-30

申请号：US508705

申请日：1990-04-13

申请人： Toshio Ohji ,  Juichi Morikawa ,  Hideo Zama

发明人： Toshio Ohji ,  Juichi Morikawa ,  Hideo Zama

IPC分类号： G11B5/53 ,  H01F38/18

CPC分类号： G11B5/53 ,  H01F38/18

摘要： A rotary magnetic head device and a rotary transformer used therefor are disclosed. A pair of througholes, through which the starting extremity and the ending extremity of each of a plurality of coil conductors disposed on the rotor core and the stator core constituting the rotary transformer are led to the respective rear surfaces, are linked by a linking slit. Alternatively one throughhole, through which both the starting extremity and the ending extremity of each of the coil conductors are led, is divided into two throughholes by disposing therein a non-magnetic partitioning member having a thermal expansion coefficient close to that of the magnetic body within a region of 15%. In this way, the two throughholes behave magnetically as if the starting extremity and the ending extremity of each of coil conductors passed through one throughhole, so that magnetic field components produced at the starting portion and the ending portion cancel each other and that the coupling coefficient between the rotor core and the stator core is increased.

摘要翻译： 公开了一种用于其的旋转磁头装置和旋转变压器。 将设置在转子铁芯上的多个线圈导体中的每一个的起始末端和末端与构成旋转变压器的定子铁心引导到各个后表面的一对电路通过连接缝连接。 或者，通过在其中设置一个通过其中引导每个线圈导体的起始末端和末端的两个通孔，其中设置有具有接近磁体的热膨胀系数的非磁性分隔构件， 一个15％的地区。 以这种方式，两个通孔的动作就好像每个线圈导体的起始末端和末端都穿过一个通孔一样，使得起始部分和末端部分产生的磁场分量相互抵消，并且耦合系数 在转子芯和定子芯之间增加。

公开(公告)号：US4021798A

公开(公告)日：1977-05-03

申请号：US621842

申请日：1975-10-14

申请人： Hiroomi Kojima ,  Hideo Zama ,  Sadao Nomura ,  Toyoji Tabuchi ,  Ryozo Murata

发明人： Hiroomi Kojima ,  Hideo Zama ,  Sadao Nomura ,  Toyoji Tabuchi ,  Ryozo Murata

IPC分类号： G02F1/135 ,  G09G3/36 ,  G02F1/13

CPC分类号： G09G3/367 ,  G02F1/1358

摘要： A liquid crystal display panel is composed of a plate of ferroelectric material, a group of electrodes arranged in a first direction on one surface of the plate, a second group of electrodes arranged in a second direction orthogonal to the first direction on a second surface of the plate, dielectric films disposed on the first group of electrodes, intermediate electrodes the main part of which is situated on each of the dielectric films and the side part of which is situated on a second surface of the plate opposite each of the second group of electrodes. A transparent substrate is arranged opposite the second surface of the plate, a third group of electrodes are arranged on the transparent substrate opposite and parallel to each of the second group of electrodes and means is provided for connecting each of the second group of electrodes to each of the third group of electrodes which is opposite to the former, and a liquid crystal is interposed between the transparent substrate and the plate.

摘要翻译： 一种液晶显示面板由铁电体材料板，在该板的一个表面上沿第一方向排列的一组电极组成，第二组电极，沿与第一方向垂直的第二方向排列在第二方向的第二表面上 所述板，介电膜设置在所述第一组电极上，中间电极，其主要部分位于每个所述电介质膜上，并且其侧部位于所述板的第二表面上，所述第二表面与所述第二组 电极。 透明基板与板的第二表面相对地布置，第三组电极布置在透明基板上，与第二组电极相对并平行，并且设置有用于将第二组电极中的每一个连接到每个 与前者相反的第三组电极，并且在透明基板和板之间插入液晶。

公开(公告)号：US5067038A

公开(公告)日：1991-11-19

申请号：US548628

申请日：1990-07-05

申请人： Toshio Tsuchiya ,  Mitsuo Abe ,  Nobuo Arai ,  Masumi Hisatomi ,  Hideo Zama

发明人： Toshio Tsuchiya ,  Mitsuo Abe ,  Nobuo Arai ,  Masumi Hisatomi ,  Hideo Zama

IPC分类号： G11B5/31 ,  G11B5/53

CPC分类号： G11B5/534

摘要： A rotary magnetic head device utilizes a thin film magnetic head or heads having small mutual influence to external magnetic field in combination with a bulk magnetic head or heads to reduce crosstalk between recording head and reproducing head to thereby improve S/N ratio.

摘要翻译： 旋转磁头装置利用与大量磁头或磁头组合的对外部磁场具有小的相互影响的薄膜磁头或磁头，以减少记录头和再现磁头之间的串扰，从而提高S / N比。

公开(公告)号：US5047885A

公开(公告)日：1991-09-10

申请号：US269608

申请日：1988-11-10

申请人： Hideo Zama ,  Hitoshi Idegami ,  Yosio Manabe ,  Kenkichi Inada

发明人： Hideo Zama ,  Hitoshi Idegami ,  Yosio Manabe ,  Kenkichi Inada

IPC分类号： G11B5/187 ,  G11B5/31

CPC分类号： G11B5/313 ,  G11B5/187 ,  G11B5/1871

摘要： Disclosed is a magnetic head formed of a thin metal film in which a metal magnetic film in the form of a chevron is formed on a substrate, and two half cores in each of which the apex portion of the chevron-shaped metal magnetic film is flattened are integrated in such a manner as to face each other with a gap member placed therebetween, the magnetic head comprising a desired track width not more twice thicknesses d.sub.1, d.sub.2 of the metal magnetic film on both sides of the apex portion, and the following formula is met:0.74.ltoreq.d.sub.2 /d.sub.1 .ltoreq.1.35.

摘要翻译： 公开了一种由薄金属膜形成的磁头，其中在基板上形成有人字形形式的金属磁性膜，并且其中两个半芯在V形金属磁性膜的顶部被平坦化 以相互面对的方式集成，间隙构件位于它们之间，磁头包括不超过顶点两侧的金属磁性膜厚度d1，d2的期望轨道宽度，以及下面的公式 满足：0.74

公开(公告)号：US06195499B1

公开(公告)日：2001-02-27

申请号：US09399230

申请日：1999-09-20

申请人： Nobutaka Amada ,  Hiroo Okamoto ,  Hideo Nishijima ,  Hideo Zama ,  Kuniaki Hirayama

发明人： Nobutaka Amada ,  Hiroo Okamoto ,  Hideo Nishijima ,  Hideo Zama ,  Kuniaki Hirayama

IPC分类号： H04N593

CPC分类号： H04N9/7921 ,  G11B5/0086 ,  G11B5/00865 ,  G11B5/00878 ,  G11B15/125 ,  G11B15/1875 ,  G11B15/4675 ,  G11B20/1209 ,  G11B27/005 ,  G11B27/32 ,  G11B2220/90 ,  H04N5/783 ,  H04N5/926 ,  H04N5/945 ,  H04N9/83 ,  H04N9/84

摘要： A magnetic recording and/or reproducing apparatus having a plurality of recording/reproducing modes, such as a long-time recording/reproducing mode and a high rate recording/reproducing mode for digital signals, is intended to form an ideal recording pattern for any head configuration. The apparatus includes magnetic heads 2a and 2b having positive/negative azimuth angles and which are opposed to each other by 180°; magnetic heads 3a and 3b having positive azimuth angles and which are opposed to each other by 180°; and magnetic heads 4a and 4b having negative azimuth angles and which are opposed to each other by 180°; wherein recording/reproducing is performed by using the magnetic heads 2a and 2b in a standard recording/reproducing mode; by using the magnetic heads 3a, 3b, 4a and 4b in a high rate recording/reproducing mode; by using the magnetic heads 2b and 3b in a long-time recording/reproducing mode which is twice as long as the standard mode; and by using the magnetic heads 2a and 2b in a long-time recording/reproducing mode which is N times (N; integer being 3 or more) as long as the standard mode.

摘要翻译： 具有多个记录/再现模式的磁记录和/或再现装置，例如用于数字信号的长时间记录/再现模式和高速率记录/再现模式，旨在形成用于任何头部的理想记录模式 组态。 该装置包括具有正/负方位角并彼此相对180度的磁头2a和2b; 具有正方位角并彼此相对180度的磁头3a和3b; 磁头4a，4b具有负方位角，并相互相对180°; 其中通过在标准记录/再现模式中使用磁头2a和2b来执行记录/再现; 通过以高速率记录/再现模式使用磁头3a，3b，4a和4b; 通过使用两倍于标准模式的长时间记录/再现模式中的磁头2b和3b; 并且通过使用长度为标准模式的N倍（N;整数为3以上）的长时间记录/再现模式中的磁头2a和2b。