Seiko Instruments Inc

Hisayuki Hirayama

Kouji Minami

Junji Taira

Masafumi Hoshino

Hiroyuki Tokita

Masaharu Sugiyama

Tomohiro Yoshikawa

Muneo Kawasaki

Kisaburo Yoshida

In method of driving a bistable nematic dot-matrix liquid crystal display panel, a first pulse voltage is applied to nematic liquid crystal molecules to raise the nematic liquid crystal molecules in the longitudinal direction. After application of the first pulse voltage, a second pulse voltage is applied to the nematic liquid crystal molecules for selecting one of two stable orientation states of the nematic liquid crystal molecules. Immediately after the application of the second pulse voltage, an AC pulse waveform of a voltage lower than a last pulse of the second pulse voltage is applied to thereby remove residual electric charges remaining in the bistable nematic dot-matrix liquid crystal display panel.

Method of driving bi-stable liquid crystal panel and driving device

An end face polishing device has a first revolution shaft mounted for undergoing revolving movement about a first axis, a rotational shaft mounted for undergoing rotation about a second axis eccentric from the first axis, and a second revolution shaft mounted for undergoing revolving movement about a third axis eccentric from the second axis. A polishing disc is connected to the second revolution shaft for revolving movement therewith.

End face polishing device

An end-face polishing and cleaning apparatus comprises at least one jig plate for supporting ferrules each fixed to an end of a respective optical fiber. At least one set of a polishing machine and a cleaning machine is provided for polishing and cleaning the end-faces of the ferrules while the ferrules are supported by the jig plate. A movable mounting device supports the jig plate and moves the jig plate between the polishing machine and the cleaning machine to polish and clean the end-faces of the ferrules. The movable mounting device has a holding member for supporting the jig plate, an elevation shaft for moving the holding member in a vertical direction, and a moving device for moving the holding member in a horizontal direction.

End-face polishing and cleaning apparatus

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Chiba, Japan

Hisayuki Hirayama