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    • 12. 发明申请
    • EXHAUST SYSTEM FOR KITCHENS
    • 厨房排气系统
    • WO1996027768A1
    • 1996-09-12
    • PCT/JP1996000478
    • 1996-02-29
    • YAMADA, Yoshihiro
    • F24F07/06
    • F24F7/06F24C15/20F24F13/24Y10S55/36
    • An exhaust system capable of reducing the occurrence of noise to a very low level while making full use of the advantages of an exhaust method using a range hood. The system is capable of reliably sucking an exhaust gas which occurs around cooking utensils by a range hood, and minimizing the occurrence of noise without causing a suction loss to occur during the suction and exhaust operations. The exhaust system (100) is provided with a vent box (20) which is disposed, especially, in a range hood (11) or in a storage box (10) communicating with the range hood, and which is connected to an exhaust duct (40), the vent box (20) having a connecting box (20a) joined to the portion of the draft box (20) which is on the side of the exhaust duct (40), the connecting box (20a) converging toward the exhaust duct (40). Left and right partition walls (21) having inclined surfaces (22) extending toward substantially the center of the exhaust duct (40) are provided in the substantially central portion of the draft box (20).
    • 一种能够充分利用排气法使用抽油烟机的优点,能够将噪音的发生降低到非常低的排气系统。 该系统能够可靠地吸引通过抽油烟机在炊具附近发生的废气,并且在抽吸和排气操作期间不会引起吸入损失而使噪声的发生最小化。 排气系统(100)设置有通风箱(20),其特别地设置在抽油烟机(11)或与抽油烟机连通的存储箱(10)中,并且连接到排气管 (40),所述通气箱(20)具有接合到所述通气箱(20)的位于所述排气管道(40)侧的部分的连接箱(20a),所述连接箱(20a)朝向所述连接箱 排气管道(40)。 具有沿着排气管道40的大致中心延伸的倾斜表面22的左右分隔壁21设置在通气箱20的大致中央部分。
    • 13. 发明申请
    • SPECTRUM SPREADING COMMUNICATION DEVICE AND COMMUNICATION SYSTEM
    • 频谱扩展通信设备和通信系统
    • WO1996024198A1
    • 1996-08-08
    • PCT/JP1995000129
    • 1995-02-01
    • HITACHI, LTD.SHIBA, TakashiYUHARA, AkitsunaYAMADA, YoshihiroOTA, Yasuhiro
    • HITACHI, LTD.
    • H04B01/69
    • H04B1/7093H04B1/70712H04J13/0022H04J13/10
    • A structure of a novel spectrum spreading communication device which solves the problem with the conventional spectrum spreading communication using Barker codes, etc., and limits the rise of the side-lobe of a correlational signal independently of the order of information codes by use of a code sequence having a code length of at least 14. The spectrum spreading communication device uses a pseudo-noise code having a code length of at least 14 and a self-correlation side-lobe of not greater than 3 as a pseudo-noise code of a direct spreading communication device which uses the pseudo-noise codes whose polarities are inverted so as to deal with also digital information. Thus, even when the pseudo-noise code length is 14 or more, the side-lobe of the correlation coefficient can be restricted. Accordingly, the error rate of the spectrum spreading communication device is reduced and the processing gain is improved.
    • 一种新的频谱扩展通信装置的结构,其解决了使用Barker码等的常规频谱扩展通信的问题,并且通过使用信令码独立于信息码的顺序来限制相关信号的旁瓣的上升 编码长度至少为14的码序列。频谱扩展通信装置使用具有至少14的码长和不大于3的自相关旁瓣的伪噪声码作为伪噪声码 直接扩展通信装置,其使用极性反转的伪噪声码来处理数字信息。 因此,即使伪噪声码长度为14以上,也可以限制相关系数的旁瓣。 因此,频谱扩展通信装置的误码率降低,处理增益提高。
    • 15. 发明申请
    • PISTON FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR MANUFACTURE THEREOF
    • 内燃机用活塞及其制造方法
    • WO1998027328A1
    • 1998-06-25
    • PCT/JP1997004002
    • 1997-11-04
    • UNISIA JECS CORPORATIONYAMADA, Yoshihiro
    • UNISIA JECS CORPORATION
    • F02F03/00
    • F16J9/00F05C2201/021
    • A ring-shaped plate member (6) of a three-layer structure having an aluminium alloy material (8) disposed on the opposite sides of a copper alloy material (7) is formed by casting in the outer peripheral part (2) of a piston (1) made of an aluminium alloy where a piston ring groove (3) is to be formed. The ring-shaped plate member (6) and the piston (1) are joined integrally by remelting locally the junction part of the aluminium alloy material (8) of the ring shaped plate member (6) and the piston (1) by applying an electron beam thereto. Thereafter the piston ring groove (3) is formed in the copper alloy material (7) of the ring-shaped plate member (6). By this method, the piston for an internal combustion engine, such that the part of a hardened layer forming the piston ring is prevented from adhering to the piston ring and the hardened layer is prevented from cracking, is provided.
    • 通过铸造在铜合金材料(7)的外周部分(2)中,形成具有设置在铜合金材料(7)的相对侧上的铝合金材料(8)的三层结构的环形板构件(6) 活塞(1)由铝合金制成,其中将形成活塞环槽(3)。 环形板构件(6)和活塞(1)通过将环形板构件(6)的铝合金材料(8)和活塞(1)的接合部分局部重熔, 电子束。 此后,活塞环槽(3)形成在环状板件(6)的铜合金材料(7)中。 通过该方法,能够防止形成活塞环的硬化层的一部分粘附在活塞环上并使硬化层破裂的内燃机用活塞。
    • 19. 发明专利
    • AUTOMATIC CONTINUOUS DEVELOPING MACHINE
    • JPS56109347A
    • 1981-08-29
    • JP1169280
    • 1980-02-02
    • YAMADA YOSHIHIRO
    • YAMADA YOSHIHIRO
    • G03D3/08G03D3/13
    • PURPOSE:To prevent an accident such as a tear due to a jam, by driving at a constant peripheral speed upper rollers of an automatic developing machine provided successively with many upper rollers and bottom rollers at constant intervals at the top and bottom of the processing vessel. CONSTITUTION:At the top and bottom parts of processing vessel 1, many upper rollers 2 and bottom rollers 3 rotating counterclockwise in relation to a driving source are pivoted horizontally in parallel. Near feed opening 4 of the processing vessel, a couple of feed rollers 5 are provided coupling with a driving source which is not shown in the figure, and their peripheral speed Vi are set a little bit less than peripheral speed Vu of roller 2 and nearly equal to peripheral speed Vb of bottom roller 3. Consequently, a photosensitive material is fed out as much as the extent of feed by constitution units of a couple of the upper roller and bottom roller, and its peripheral speed is set to a set value having a slight margin according to the difference in peripheral speed between the feed roller and upper roller, so that neither a jam nor a tear is caused by a sag of the photosensitive material.