发明授权
US5798779A Ultrasonic printing apparatus and method in which the phases of the
ultrasonic oscillators are controlled to prevent unwanted phase
cancellations
失效
超声波打印装置和方法，其中控制超声波振荡器的相位以防止不期望的相位消除
- 专利标题： Ultrasonic printing apparatus and method in which the phases of the ultrasonic oscillators are controlled to prevent unwanted phase cancellations
- 专利标题（中）： 超声波打印装置和方法，其中控制超声波振荡器的相位以防止不期望的相位消除
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申请号： US557833申请日： 1995-11-14
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公开(公告)号： US5798779A公开(公告)日： 1998-08-25
- 发明人: Hirofumi Nakayasu , Yoshihiko Kaiju , Kotaro Kameya , Takaki Shimura , Atsuo Iida , Toshifumi Tanida
- 申请人： Hirofumi Nakayasu , Yoshihiko Kaiju , Kotaro Kameya , Takaki Shimura , Atsuo Iida , Toshifumi Tanida
- 申请人地址： JPX Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JPX Kawasaki
- 优先权： JPX7-057818 19950316
- 主分类号： B41J2/045
- IPC分类号： B41J2/045 ; B29D11/00 ; B41J2/015 ; B41J2/055 ; B41J2/14 ; G01D15/18 ; G10K11/30 ; B41J2/04
摘要：
An ultrasonic printing method by which recording of a high resolution can be achieved. In the ultrasonic printing method, some or all of a plurality of ultrasonic oscillators are selectively driven in such phases that a difference in phase at a predetermined point between a reference ultrasonic wave from one of the selected ultrasonic oscillators and another ultrasonic wave from any other one of the selected ultrasonic oscillators is equal to or less than one-fourth a wavelength of the ultrasonic waves in a transmission medium for the ultrasonic waves from the selected ultrasonic waves to the predetermined point. The ultrasonic printing method can be applied to various printing apparatus for which recording of a high resolution is required.
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