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1. 发明授权

US06449107B2 Optical beam scanning device 失效
标题翻译：光束扫描装置
公开(公告)号：US06449107B2
公开(公告)日：2002-09-10
申请号：US09757639
申请日：2001-01-11
申请人： Hidenari Tachibe , Hiromu Nakamura , Etsuko Shibata
发明人： Hidenari Tachibe , Hiromu Nakamura , Etsuko Shibata
IPC分类号： G02B702
CPC分类号： G02B26/12
摘要： The light beam scanning device has a casing injection molded from magnesium or magnesium alloy as the material. A polygon mirror and a motor are sealed in the inside of the casing and a cover covering the latter. Since the thickness of the magnesium or magnesium alloy material can be reduced, heat generated from a motor is dissipated satisfactorily. Heat dissipating fins are formed to the casing to promote heat dissipation and enhance the strength of the casing.
摘要翻译：光束扫描装置具有以镁或镁合金注射成型的外壳作为材料。多面反射镜和电动机被密封在壳体的内部，盖子覆盖其中。由于可以减少镁或镁合金材料的厚度，所以从电动机产生的热量可以令人满意地消散。散热片形成在壳体上，以促进散热，提高套管的强度。

2. 发明授权

US06195190B1 Optical beam scanning device 有权
标题翻译：光束扫描装置
公开(公告)号：US06195190B1
公开(公告)日：2001-02-27
申请号：US09315085
申请日：1999-05-19
申请人： Hidenari Tachibe , Hiromu Nakamura , Etsuko Shibata
发明人： Hidenari Tachibe , Hiromu Nakamura , Etsuko Shibata
IPC分类号： G02B2608
CPC分类号： G02B26/12
摘要： The light beam scanning device has a casing injection molded from magnesium or magnesium alloy as the material. A polygon mirror and a motor are sealed in the inside of the casing and a cover covering the latter. Since the thickness of the magnesium or magnesium alloy material can be reduced, heat generated from a motor is dissipated satisfactorily. Heat dissipating fins are formed to the casing to promote heat dissipation and enhance the strength of the casing.
摘要翻译：光束扫描装置具有以镁或镁合金注射成型的外壳作为材料。多面反射镜和电动机被密封在壳体的内部，盖子覆盖其中。由于可以减少镁或镁合金材料的厚度，所以从电动机产生的热量可以令人满意地消散。散热片形成在壳体上，以促进散热，提高套管的强度。

3. 发明授权

US5532866A Polygonal mirror and manufacturing method thereof and light beam scanning optical apparatus using the polygonal mirror 失效
标题翻译：多角镜及其制造方法以及使用多面镜的光束扫描光学装置
公开(公告)号：US5532866A
公开(公告)日：1996-07-02
申请号：US224507
申请日：1994-04-07
申请人： Etsuko Shibata , Hiromu Nakamura
发明人： Etsuko Shibata , Hiromu Nakamura
IPC分类号： G02B26/10 , G02B26/12 , G02B26/08
CPC分类号： G02B26/126
摘要： A light beam scanning optical apparatus which deflects a light beam emitted from a light source with a polygonal mirror and scans the light beam on a photosensitive member through an f.theta. optical system. Suppose the distance between a rotation axis of the polygonal mirror and each reflecting facet in a case wherein the reflecting facets are flat to be A. If a convergent light beam is incident to the polygonal mirror, and if the reflecting facets are concave, the distance between the rotation axis and the facets is adjusted to be larger than A. If the reflecting facets are convex, the distance is adjusted to be smaller than A. Also, if a divergent light beam is incident, and if the reflecting facets are concave, the distance between is adjusted to be smaller than A. If the reflecting facets are convex, the distance is adjusted to be larger than A.
摘要翻译：一种光束扫描光学装置，其使用多面镜偏转从光源发射的光束，并通过fθ光学系统扫描感光构件上的光束。假设在反射面平坦的情况下多棱镜的旋转轴与各反射面之间的距离为A.如果会聚光束入射到多面镜，并且如果反射面是凹的，则距离旋转轴和小面之间的距离被调整为大于A.如果反射面是凸的，则将距离调整为小于A.此外，如果发散光束入射，并且如果反射面是凹的，将距离调整为小于A.如果反射面是凸的，则将距离调整为大于A.

4. 发明授权

US5926306A Image forming light scanning apparatus 失效
标题翻译：成像光扫描装置
公开(公告)号：US5926306A
公开(公告)日：1999-07-20
申请号：US948852
申请日：1997-10-10
申请人： Hiromu Nakamura , Toshio Naiki , Etsuko Shibata , Satoru Ono
发明人： Hiromu Nakamura , Toshio Naiki , Etsuko Shibata , Satoru Ono
IPC分类号： G02B13/00 , G02B26/12 , G02B26/08
CPC分类号： G02B26/125 , G02B13/0005
摘要： A scanning apparatus has a luminous flux deflector and a single f.theta. lens. The deflector deflects a convergent luminous flux on a scanned surface at a uniform angular velocity. The f.theta. lens is arranged between the deflector and the scanned surface. The f.theta. lens is bi-convex in a main scanning direction and is made of a material having a refractive index of at most 1.6. One surface of the f.theta. lens in a main scanning direction is so curved that a radius of curvature in the main scanning direction A decreases as an angle of view in the main scanning direction increases.
摘要翻译：扫描装置具有光束偏转器和单个θθ透镜。偏转器以均匀的角速度偏转扫描表面上的会聚光束。 fθ透镜布置在偏转器和扫描表面之间。 fθ透镜在主扫描方向上是双凸的，并且由折射率至多为1.6的材料制成。 fθ透镜在主扫描方向上的一个表面是如此弯曲的，使得主扫描方向A上的曲率半径随主扫描方向的视角增加而减小。

5. 发明授权

US5721631A Image forming light scanning apparatus 失效
公开(公告)号：US5721631A
公开(公告)日：1998-02-24
申请号：US620103
申请日：1996-03-21
申请人： Hiromu Nakamura , Toshio Naiki , Etsuko Shibata , Satoru Ono
发明人： Hiromu Nakamura , Toshio Naiki , Etsuko Shibata , Satoru Ono
IPC分类号： G02B13/00 , G02B26/12 , G02B26/08
CPC分类号： G02B26/125 , G02B13/0005
摘要： A scanning apparatus has a luminous flux deflector and a single f.theta. lens. The deflector deflects a convergent luminous flux on a scanned surface at a uniform angular velocity. The f.theta. lens is arranged between the deflector and the scanned surface. The f.theta. lens is bi-convex in a main scanning direction and is made of a material having a refractive index of at most 1.6. One surface of the f.theta. lens in a main scanning direction is so curved that a radius of curvature in the main scanning direction decreases as an angle of view in the main scanning direction increases.

6. 发明授权

US5563729A Image forming light scanning apparatus 失效
标题翻译：成像光扫描装置
公开(公告)号：US5563729A
公开(公告)日：1996-10-08
申请号：US296020
申请日：1994-08-25
申请人： Hiromu Nakamura , Toshio Naiki , Etsuko Shibata , Satoru Ono
发明人： Hiromu Nakamura , Toshio Naiki , Etsuko Shibata , Satoru Ono
IPC分类号： G02B13/00 , G02B26/12 , G02B26/08
CPC分类号： G02B26/125 , G02B13/0005
摘要： A scanning apparatus has a luminous flux deflector and a single f.theta. lens. The deflector deflects a convergent luminous flux on a scanned surface at a uniform angular velocity. The f.theta. lens is arranged between the deflector and the scanned surface. The f.theta. lens is bi-convex in a main scanning direction and is made of a material having a refractive index of at most 1.6. One surface of the f.theta. lens in a main scanning direction is so curved that a radius of curvature in the main scanning direction decreases as an angle of view in the main scanning direction increases.
摘要翻译：扫描装置具有光束偏转器和单个θθ透镜。偏转器以均匀的角速度偏转扫描表面上的会聚光束。 fθ透镜布置在偏转器和扫描表面之间。 fθ透镜在主扫描方向上是双凸的，并且由折射率至多为1.6的材料制成。 fθ透镜在主扫描方向上的一个表面是如此弯曲的，使得主扫描方向上的曲率半径随主扫描方向的视角而增大。

7. 发明授权

US06622686B2 Cylinder head for an internal combustion engine 有权
标题翻译：内燃机气缸盖
公开(公告)号：US06622686B2
公开(公告)日：2003-09-23
申请号：US09779630
申请日：2001-02-09
申请人： Takashi Komatsuda , Kaoru Aoki , Shinichi Takahashi , Takuya Takagi , Hiromu Nakamura , Tsutomu Yamasaki
发明人： Takashi Komatsuda , Kaoru Aoki , Shinichi Takahashi , Takuya Takagi , Hiromu Nakamura , Tsutomu Yamasaki
IPC分类号： F02F124
CPC分类号： F02F1/4214 , F02F2001/245
摘要： In a cylinder head 1 of an internal combustion engine, communicating passageways 17, 18, 17′, 18′ for coolant are provided between combustion chambers 3 and pass-through holes 21 to 28 at positions which overlap straight lines L1, L2 connecting centers C2, C3 of the exhaust port openings 6a, 7a with centers C5 to C8 of the pass-through holes 25 to 28 and straight lines L3, L4 connecting centers C9, C10 of the intake port openings 4a, 5a with centers C11 to c14 of the pass-through holes 21 to 24 when a mating surface 2 of the cylinder head 1 with the cylinder block is viewed from the bottom. When peripheries of the exhaust port openings 6a, 7a and intake port openings 4a, 5a thermally expand, the suppression of thermal expansion by the bolts at fastening portions is alleviated by the communicating passageways 17, 18, 17′, 18′.
摘要翻译：在内燃机的气缸盖1中，用于冷却剂的连通通道17,18,17'，18'设置在燃烧室3和穿通孔21至28之间的重叠直线L1，L2连接中心C2 具有通孔25至28的中心C5至C8的排气口开口6a，7a和进气口开口4a，5a的连接中心C9，C10的直线L3，L4与中心C11至c14的排气口开口6a，7a的C3 当从底部观察气缸盖1的与气缸体的配合表面2时的通孔21至24。当排气口开口6a，7a和进气口开口4a，5a的周边热膨胀时，通过连通通道17,18,17'，18'减轻了紧固部分处的螺栓对热膨胀的抑制。

8. 发明授权

US5901256A Laser beam scanning device and apparatus provided with a laser beam scanning device 失效
标题翻译：具有激光束扫描装置的激光束扫描装置和装置
公开(公告)号：US5901256A
公开(公告)日：1999-05-04
申请号：US568758
申请日：1995-12-07
申请人： Hiromu Nakamura , Satoru Ono
发明人： Hiromu Nakamura , Satoru Ono
IPC分类号： B41J2/44 , G02B26/12 , G06K7/10 , G06K7/00 , G02B26/08
CPC分类号： G02B26/126 , G06K7/10702
摘要： A laser beam scanning device which has an improved cylindrical mirror in an optical path from a laser source unit to a polygonal mirror. The cylindrical mirror has a finite radius of curvature only in a sub scanning direction, and the radius of curvature in the sub scanning direction varies in a main scanning direction such that the closer to a laser beam incident side, the larger and the closer to a laser beam emergent side, the smaller. The laser beam reflected by the cylindrical mirror is converged on a line substantially parallel to each reflective facet of the polygonal mirror.
摘要翻译：一种激光束扫描装置，其具有从激光源单元到多面镜的光路中的改进的圆柱形反射镜。圆柱形反射镜仅在副扫描方向上具有有限的曲率半径，并且副扫描方向上的曲率半径在主扫描方向上变化，使得更靠近激光束入射侧，越大越接近激光束紧急侧，较小。由圆柱形反射镜反射的激光束会聚在基本上平行于多面镜的每个反射小面的线上。

9. 发明授权

US5583559A Light beam optical scanning system having an f.theta. mirror 失效
标题翻译：具有fθ镜的光束光学扫描系统
公开(公告)号：US5583559A
公开(公告)日：1996-12-10
申请号：US187341
申请日：1994-01-25
申请人： Hiromu Nakamura , Akiyoshi Hamada
发明人： Hiromu Nakamura , Akiyoshi Hamada
IPC分类号： G02B26/10 , B41J2/47 , G02B26/12
CPC分类号： B41J2/471 , G02B26/126
摘要： A laser beam optical scanning system having a laser diode, a collimator lens, a cylindrical lens, a polygonal mirror and an f.theta. mirror. The f.theta. mirror has a free toric surface whose curvature in the main scanning direction varies in accordance with field angle. The variation of the curvature of the free toric surface is set in accordance with the position of the f.theta. mirror in the optical path, and this appropriate setting of the variation of the curvature enables the f.theta. mirror to correct both distortion and curvature of field in the main scanning direction.
摘要翻译：具有激光二极管，准直透镜，柱面透镜，多面镜和fθ镜的激光束光学扫描系统。 fθ反射镜具有自由的复曲面，其主扫描方向的曲率根据场角而变化。游离复曲面的曲率的变化根据光路中的θθ镜的位置来设定，并且曲率变化的这种适当的设定使得θθ镜能够校正场的变形和曲率在主扫描方向。

10. 发明授权

US5580325A Tooth skip preventing structure of endless power transmitting means 失效
标题翻译：齿轮防止结构的无限动力传递装置
公开(公告)号：US5580325A
公开(公告)日：1996-12-03
申请号：US405250
申请日：1995-03-17
申请人： Takeshi Hirota , Koujiro Kamata , Takayuki Kikuchi , Hiromu Nakamura
发明人： Takeshi Hirota , Koujiro Kamata , Takayuki Kikuchi , Hiromu Nakamura
IPC分类号： F02B67/06 , F02B75/02 , F02B77/08 , F16H7/02 , F16H7/18
CPC分类号： F16H7/18 , F02B77/081 , F16H7/023 , F02B2075/027 , F16H2007/185
摘要： A structure for preventing a tooth skip in a toothed endless power transmitting belt. On an inner side of a tooth skip preventing member covering an outer surface of a toothed rotor is formed a tooth skip preventing piece bent at a right angle. The tooth skip preventing member is arranged substantially in parallel with the outer circumferential surface of the toothed endless power transmitting belt wound around a toothed driving pulley with a narrower space than a tooth height of the pulley. The tooth skip preventing member is fixed to a casing by a bolt penetrating a hole of the member. On a outer side at a central portion of the tooth skip preventing member is formed a harness holding piece bent at a right angle in the same direction as the tooth skip preventing piece.
摘要翻译：用于防止齿形无端动力传递带中的齿跳跃的结构。在覆盖有齿转子的外表面的齿跳过防止构件的内侧形成有直角弯曲的防止跳齿的片。齿防止部件大致平行于与齿轮驱动皮带轮缠绕的齿形无端动力传动皮带的外周面平行，齿形驱动滑轮的空间比皮带轮的齿高更窄。通过穿过构件的孔的螺栓将防止齿的构件固定在壳体上。在防跳动构件的中心部分的外侧形成有沿与防止跳跳块相同的方向成直角弯曲的线束保持件。

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