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1. 发明专利

JPS6148142A Optical head 失效
标题翻译：光学头
公开(公告)号：JPS6148142A
公开(公告)日：1986-03-08
申请号：JP17001684
申请日：1984-08-16
申请人： Olympus Optical Co Ltd , Pioneer Electronic Corp
发明人： IKEGAME TETSUO , SUGIMOTO YOICHI , ITO KENICHI , TAKEGAWA KEIJI , DOBASHI YASUTAKA , NINOMIYA MASAMI , NAGANO SHINJI , MUSHA TORU , WADA YASUMITSU , KIKUCHI IKUYA , TAKANO TOMOMITSU , SHIMODA KOSHI , EGASHIRA YOSHINORI
IPC分类号： G11B7/09
CPC分类号： G11B7/0932
摘要： PURPOSE:To mass-produce inexpensively stable products while avoiding troublesome bend forming by using completely separate focusing plate and tracking plate springs as a couple and connecting both of them via a relay member. CONSTITUTION:A support mechanism is constituted by a couple of focusing plate springs 4a, 4b, the relay member 5 and a couple of tracking plate springs 6a, 6b. A couple of focusing plate springs 4a, 4b and a couple of tracking plate springs 6a, 6b are constituted by having only to cut plate springs at a proper length, and since no bending forming required for a conventional head is necessary, the manufacture is easy. A couple of focusing coils 9a, 9b are fixed to a side face opposing to the tracking direction T of the support member 2 and a couple of tracking coils 10a, 10b are mounted incorporatedly to the outside of the focusing coils.
摘要翻译：目的：通过使用完全分离的聚焦板和跟踪板簧作为一对并通过中继构件连接它们，大量生产廉价稳定的产品，同时避免麻烦的弯曲成形。构成：支撑机构由一对聚焦板簧4a，4b，中继构件5和一对跟踪板弹簧6a，6b构成。一对聚焦板弹簧4a，4b和一对跟踪板弹簧6a，6b仅通过切割适当长度的板簧构成，并且由于不需要传统头部所需的弯曲成形，所以制造容易。一对聚焦线圈9a，9b固定到与支撑构件2的跟踪方向T相对的侧面，并且一对跟踪线圈10a，10b被组合地安装到聚焦线圈的外侧。

2. 发明专利

JPH03150740A MASTER DISK RECORDER FOR OPTICAL DISK 失效
公开(公告)号：JPH03150740A
公开(公告)日：1991-06-27
申请号：JP28924789
申请日：1989-11-07
申请人： PIONEER ELECTRONIC CORP
发明人： WADA YASUMITSU , KOJIMA YOSHIAKI , IIZUKA MASATOSHI
IPC分类号： G11B7/085 , G11B7/09 , G11B7/12 , G11B7/26
摘要： PURPOSE:To record the information as a highly accurate track by reducing the weight of a part to be driven and to increase the control band frequency of a drive system for an optical head. CONSTITUTION:The recording laser beam of an optical head 1 is led to an objective lens 8 via a reflector 7 of an optical system 6. The lens 8 is supported so as to be placed in the optical axis direction and the moving direction of a carriage 2 by a biaxial actuator 9 against the carriage 2. Meanwhile a convex lens 22 and a plane mirror 23 are used as the reflecting means which reflects the laser beams received from a laser beam length measuring means in parallel to the incident light beam via the head 1 for the measurement of the laser beam length. Then the lens 22 is fixed onto an optical head 14 via a base stage 24 and the mirror 23 is set at a point in the vicinity of the focus of the lens 22. In such a constitution, the weight is reduced for a part to be driven in the head 1. Then the control band frequency of a driving system is increased.

3. 发明专利

JPH039680B2 失效
公开(公告)号：JPH039680B2
公开(公告)日：1991-02-08
申请号：JP20149781
申请日：1981-12-16
申请人： PIONEER ELECTRONIC CORP
发明人： WADA YASUMITSU , MATSUDA NORIO
IPC分类号： H04R9/00 , H04R3/00 , H04R9/04

4. 发明专利

JPS6233344A PICKUP DEVICE FOR OPTICAL INFORMATION READER 失效
公开(公告)号：JPS6233344A
公开(公告)日：1987-02-13
申请号：JP17297085
申请日：1985-08-06
申请人： PIONEER ELECTRONIC CORP
发明人： WADA YASUMITSU , MAKIMOTO SEIICHI , OGATA TERUHIRO
IPC分类号： G11B7/09 , G02B7/00
摘要： PURPOSE:To attain miniaturization and thin profile of the titled device by expanding the 2nd flexible member in the optical direction and arranging the other in the range of an outer size in one optical axis direction in the 1st and 2nd coils. CONSTITUTION:A couple of coils 51 wound so that the coil center axis is in parallel with a focus direction Z are fixed to end faces in parallel with two directions, focus direction Z and tracking direction X among each end face of a holder 41. A coil 50 is arranged in the range of outer diameter of the coil 51 in the focus direction Z. That is, members of the 1st, 2nd coils and the magnetic circuit are arranged in parallel with a face orthogonal in the optical axis direction without being stacked in the optical axis direction and the 2nd flexible member is arranged to a space produced at the side of each member in the optical axis direction. Thus, not so large occupied space is required and the thin profile of the entire reader is attained.

5. 发明专利

JPS592500A Magnetic circuit of dynamic converter 失效
标题翻译：动态转换器的磁电路
公开(公告)号：JPS592500A
公开(公告)日：1984-01-09
申请号：JP10981482
申请日：1982-06-28
申请人： Pioneer Electronic Corp
发明人： WADA YASUMITSU , SHIMADA KUNIHIKO , MATSUDA NORIO , KIKUCHI IKUYA
IPC分类号： H01F7/02 , H04R9/02
CPC分类号： H04R9/025 , H04R2209/022
摘要： PURPOSE:To miniaturize the magnetic circuit, by keeping the thickness of a part of a top plate and a back plate inserting and holding a ring shaped magnet to have a prescribed relation to the size of magnet and a distance with a center pole for increasing a spatial magnetic energy. CONSTITUTION:The back plate 7 having the center pole 8 and the ring shaped top plate 9 are formed with a metal of high permeability and a high saturated magnetic flux density, the ring shaped magent 10 is arranged between the back plate 7 and the top plate 9 for forming the magnetic circuit. Thickness of the one side of the back plate 7 and the top plate 9 is taken as equation 1 so as to be thinned toward the outer circumference (where; x1
摘要翻译：目的：为了使磁路小型化，通过保持顶板的一部分的厚度和插入和保持环形磁体的背板与磁体的尺寸成规定的关系，并且与中心极的距离增加空间磁能。构成：具有中心极8和环形顶板9的背板7由高磁导率和高饱和磁通密度的金属形成，环形磁铁10布置在背板7和顶板之间 9用于形成磁路。将背板7和顶板9的一侧的厚度作为等式1，以便朝向外周变薄（其中，x1 <= x <= x2，x2是磁体10的外径，x1 是磁体10的内径，x是从中心极8的中心向径向的距离，Bm是磁体10的工作密度，Bs是顶部和背面的饱和磁通密度板7,9）。因此，空间磁能增加并且磁路小型化。

6. 发明专利

JPS5552695A MANUFACTURE OF EDGE 失效
公开(公告)号：JPS5552695A
公开(公告)日：1980-04-17
申请号：JP12540178
申请日：1978-10-12
申请人： PIONEER ELECTRONIC CORP
发明人： WADA YASUMITSU
IPC分类号： H04R7/20
摘要： PURPOSE:To ensure the accurate drilling of the inner circumference of the window hole without giving the malformation and expansion to the area corresponding to the window hole by increasing the inner core part by the amount equivalent to the thickness of the rigidity reinforcement component to increase the rigidity and then drilling the window hole at the edge. CONSTITUTION:Outer circumference flange 1b extends concentrically outside roll part 1a, and the hole drilling part to drill the window hole and the inner circumference flange to be the overlap width of the diaphragm later are unified together to form inner core part 1c inside part 1a. And the paper, the rubber plate or the like is used for part 1c of original form edge 1, and the outer circumference of part 1c is adhered close to the inner side of part 1a. Then part 1c is thickened by the amount equivalent to rigidity reinforcement component 2a to increase the rigidity. Here window hole 3 is drilled at the edge where reinforcement component 2 is stuck, and as a result the inner circumference line of hole 3 can be drilled accurately without giving the malformation and extension to the area corresponding to hole 3.

7. 发明专利

JP2004132863A Beam adjusting sample, beam adjusting method, and beam adjusting device 有权
公开(公告)号：JP2004132863A
公开(公告)日：2004-04-30
申请号：JP2002298359
申请日：2002-10-11
申请人： Pioneer Electronic Corp , パイオニア株式会社
发明人： KATSUMURA MASAHIRO , KOJIMA YOSHIAKI , WADA YASUMITSU , KITAHARA HIROAKI
IPC分类号： G01N23/225 , G01N1/00 , H01J37/20 , H01J37/28
CPC分类号： H01J37/28 , H01J2237/21
摘要： PROBLEM TO BE SOLVED: To accurately adjust a beam, in an electron beam irradiation device. SOLUTION: A beam adjusting sample, having a flat plate-like surface and having two edges perpendicular to each other, is used. The beam adjusting sample is irradiated with the beam so that the amount of the beam passing through the beam adjusting sample is detected. The two edges are perpendicularly scanned with the beam. COPYRIGHT: (C)2004,JPO

8. 发明专利

JP2002056539A OPTICAL DISK AND INFORMATION REPRODUCING DEVICE THEREOF 失效
公开(公告)号：JP2002056539A
公开(公告)日：2002-02-22
申请号：JP2000244637
申请日：2000-08-11
申请人： PIONEER ELECTRONIC CORP
发明人： YANAGISAWA TAKAMARO , NOMOTO TAKAYUKI , WADA YASUMITSU , YOKOGAWA FUMIHIKO , OSAWA SEIICHI
IPC分类号： G11B7/24 , G11B7/005 , G11B7/007 , G11B7/013 , G11B7/125 , G11B7/135 , G11B7/26
摘要： PROBLEM TO BE SOLVED: To provide an optical disk and an information reproducing device for the next generation capable of recording data with higher density as compared with conventional DVDs by using a light beam for reproduction with shorter wavelength and also an optical system having the higher numerical aperture. SOLUTION: This optical disk is provided with an information recording layer whereon the information is recorded as a pit train with a specified track pitch, and a light transmitting layer formed on the information recording layer, so that the information is reproduced with the light beam emitted on the information recording layer through the light transmitting layer by an objective lens, and when the track pitch is expressed as TP, the minimum pit length is Tmin, the wavelength of the light beam is λ and the numerical aperture of the objective lens is NA, the relation of a 0.194(λ/NA)2

9. 发明专利

JP2533948B2 失效
公开(公告)号：JP2533948B2
公开(公告)日：1996-09-11
申请号：JP28924789
申请日：1989-11-07
申请人： PIONEER ELECTRONIC CORP
发明人： WADA YASUMITSU , KOJIMA YOSHIAKI , IIZUKA MASATOSHI
IPC分类号： G11B7/085 , G11B7/09 , G11B7/12 , G11B7/26

10. 发明专利

JPS5730500A Plane speaker 失效
标题翻译：平面扬声器
公开(公告)号：JPS5730500A
公开(公告)日：1982-02-18
申请号：JP10365880
申请日：1980-07-30
申请人： Pioneer Electronic Corp
发明人： KIKUCHI IKUYA , SHIMADA KUNIHIKO , MORI SHIYUUICHI , WADA YASUMITSU
IPC分类号： H04R9/04 , H04R7/04
CPC分类号： H04R7/04
摘要： PURPOSE:To widen a piston motion area while suppressing split vibration by using the coupling part of the circular transfer member of a plane speaker, which couples with a bobbin, as it is without changing the shape and by specifying the shape of the part coupling with a plane diaphragm corresponding to the shape of the plane diaphragm. CONSTITUTION:With a columnar bobbin 2 wound with a voice coil, a transfer member 14 is coupled while its part contacting with the bobbin 2 is unchanged in shape, i.e., circular. Further, the transfer member 14 is also coupled with a plane diaphragm 3 while the contacting part has a closed curve encircling intersenctions of nodes of split vibrations parallel to each side from the outside and cross the nodes between the intersections. Consequently, the corner parts of the polygonal plane diaphragm 3 are reinforced by the transfer member 14 to suppress low- frequency slipt vibrations. High-frequency slipt vibrations, on the other hand, are suppressed by driving the part where the nodes crosses each other directly by the transfer member 14. Therefore, a piston motion area is widened.
摘要翻译：目的：通过使用与线轴耦合的平面扬声器的圆形传递构件的耦合部分，同时抑制分裂振动，从而扩大活塞运动区域，而不改变形状，并通过指定与对应于平面隔膜的形状的平面隔膜。构成：用缠绕有音圈的圆柱形线轴2，转印部件14被连接，而与绕线筒2接触的部分的形状不变，即圆形。此外，传递构件14还与平面隔膜3连接，同时接触部分具有围绕与外部的每一侧平行的分离振动的节点的闭合的闭合曲线，并且跨越交叉点之间的节点。因此，多边形平面振动板3的角部被转印部件14加强以抑制低频振动。另一方面，通过驱动节点直接由传递构件14彼此交叉的部分来抑制高频率的振动振动。因此，活塞运动区域变宽。

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