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    • 1. 发明专利
    • ホブカッタ
    • JP2019093484A
    • 2019-06-20
    • JP2017225805
    • 2017-11-24
    • KOMATSU MFG CO LTD
    • KUKO JUNJIFENG YANNAN
    • B23F21/16
    • 【課題】簡便に組み立て可能なホブカッタを提供する。【解決手段】ホブカッタ100は、ホブ10と、アーバ20と、ナット30とを備える。アーバ20の軸部21は、一端側に形成される頭部211と、他端側に形成されナット30が締結される雄ねじ部212とを有する。ホブ10の挿通孔13は、一端に形成され頭部211が当接する第1拡径孔部131と、他端に形成されナット30が当接する第2拡径孔部132とを有する。アーバ20の頭部211の外径は、軸方向一端側に向かうほど大きい。ホブ10の第1拡径孔部131の内径は、軸方向一端側に向かうほど大きい。ナット30は、真球面状に形成され、ホブ10の第2拡径孔部132と当接する当接面312Sを有する。第2拡径孔部132の内径は、軸方向他端側に向かうほど大きい。【選択図】図2
    • 7. 发明专利
    • HYDRAULIC DRIVE DEVICE
    • JP2010223371A
    • 2010-10-07
    • JP2009072689
    • 2009-03-24
    • KOMATSU MFG CO LTD
    • NAGURA SHINOBU
    • F15B21/14E02F9/22F15B11/00
    • PROBLEM TO BE SOLVED: To provide a hydraulic drive device which reliably branches and supplies oil to a plurality of hydraulic actuators by preventing an energy efficiency from lowering. SOLUTION: The hydraulic drive device, branching and supplies oil from a hydraulic pump 10 through each individual direction switching valve 20A, 20B to hydraulic cylinder actuators AC, BC, keeps in branch oil passages 2, 3 to the respective hydraulic cylinder actuators AC, BC, hydraulic pump motors 30A, 30B disposed on an upstream side of the direction switching valves 20A, 20B, and an electric motor generators 40A, 40B connected to the hydraulic pump motors 30A, 30B, and additionally, is provided with a controller 70 to increase or reduce the pressure in the branch oil passages 2, 3 so as to conform to the load pressure of the hydraulic cylinder actuators AC, BC by controlling the torque of the electric motor generators 40A, 40B. COPYRIGHT: (C)2011,JPO&INPIT
    • 9. 发明专利
    • NARROW-BAND LASER DEVICE FOR EXPOSURE DEVICE
    • JP2008186911A
    • 2008-08-14
    • JP2007017811
    • 2007-01-29
    • KOMATSU MFG CO LTDUSHIO ELECTRIC INC
    • WAKABAYASHI OSAMU
    • H01S3/098
    • PROBLEM TO BE SOLVED: To efficiently inject a seed light to an amplifying-stage laser by injecting the seed light from a narrow-band oscillation-stage laser to a discharge region for the amplifying-stage laser from a plurality of places. SOLUTION: MO beams are transmitted in the region of an antireflection film for a rear mirror 26 for the amplifying-stage laser (PO) 20, and the MO beams are partially injected to the discharge region and amplified to reach the region of the partial reflection (PR) film for an OC 24. The transmitted beams are output as output laser beams, and reflected beams are returned to the discharge region and a resonance is repeated. Other parts transmitted in the region of the antireflection film for the rear mirror 26 are transmitted while being off from the discharge region, reflected in the region of a high reflection (HR) film for the OC 24 and are transmitted in the discharge region and amplified. The other parts are reflected in the region of the high reflection (HR) film for the rear mirror 26, transmitted in the discharge region and amplified to be incident on the region of the partial reflection film for the OC 24. Transmitted beams are output as output beams for the laser, and reflected beams are returned to the discharge region as feedback beams and the resonance is repeated. COPYRIGHT: (C)2008,JPO&INPIT