Hamamatsu-Photonics K.k.

Osamu Yogi

Tomonori Kawakami

Mitsuru Ishikawa

Shigeki Ishihara

Kouji Kawai

Naoki Masuda

Hirohisa Ota

A droplet forming method, for forming a droplet, constituted of a sample liquid, on a substrateby applying a pulse voltage P between the sample liquid, retained in a nozzle, and the substrate, disposed opposite a tip of the nozzle, to discharge the sample liquidfrom the tip of the nozzle, includes: a waveform measuring step Sof measuring a temporal waveform of a current I that flows between the sample liquidin the nozzleand the substrate; and an application condition determining step Sof determining, based on the temporal waveform of the current I, an application condition of the pulse voltage P during the forming of the dropleton the substrate

Liquid droplet forming method and liquid droplet forming device

A droplet formation method of a mixed liquid is a method that the dropletsandare each delivered from each capillary tip to form the dropletof the mixed liquid consisting of a raw material liquid on a substrate by applying a pulse voltage between the raw material liquids stored for each of a plurality of capillariesandand the substrate disposed opposite to each capillary tip. In addition, a droplet formation device of the mixed liquid is provided with a plurality of capillaries for realizing formation of the dropletof the aforementioned mixed liquid, a substrate, a voltage applying device for applying a pulse voltage and a controller for controlling the voltage applying device.

Method of forming liquid-drops of mixed liquid, and device for forming liquid-drops of mixed liquid

The invention provides an ink jet printing method for printing a color image on a printing object by using a plurality of inks, wherein ink nozzlesthroughwhich house the plurality of inks, respectively, and a dilution nozzlewhich houses a dilute solution that can dilute the inks are used, the ink is discharged from the ink nozzleby an electrostatic sucking force to form a droplet L on a printing object, and then the ink is discharged from the ink nozzleby an electrostatic sucking force and the inks are mixed within the droplet L to form a droplet in an arbitrary additive color. In this case, primary color inks can be accurately mixed within the droplet L.

Droplet forming method for mixed liquid and droplet forming device, and ink jet printing method and device, and ink jet printing electrode-carrying nozzle

A liquid-contained substance analysis device according to this invention comprises: a substratewhich is coated on the surface with PVA and which is mirror finished; a first light sourcefor illuminating light onto substrateand light detectorwhich detects the scattered light due to a liquid or a trace of a liquid that exists on substrateand the position of liquid L or trace of liquid L is detected based on the scattered light detected by light detectorBy then illuminating excitation light from a second light sourceonto the detected position, the substances contained in liquid L are analyzed.

Liquid-containing substance analyzing device and liquid-containing substance analyzing method

A minute droplet forming apparatus comprises a nozzle for storing therewithin a liquid for forming a droplet ; a substrate , disposed so as to face the tip of the nozzle , for mounting the droplet dropped from the tip of the nozzle ; and a pulse power supply for applying a pulse voltage between an electrode arranged in the liquid within the nozzle and the substrate . After a liquid column is formed by projecting the liquid from the nozzle tip by applying the pulse voltage between substrate and the electrode , a nickel piece disposed within the nozzle is moved to the tip part of the nozzle by an XYZ stage by way of a magnet , so as to enhance the fluid resistance in the nozzle tip part, thereby causing a setback force for returning the liquid into the nozzle , by which the droplet is isolated from the liquid column

Minute droplet forming method a minute droplet forming apparatus

A metal halide lamp comprises a sealed tube containing mercury vapor and halide, and electrodes extending to a center of the sealed tube, supported by sealed portions at both ends of the sealed tube. A notch extending in a direction perpendicular to an axis of the electrode is formed in each electrode. A transverse cross sectional area of a portion where the notch is formed is smaller than the transverse cross sectional area of another portions and functions as a heat dam portion for damming heat. Accordingly, temperature of a proximal portion from the heat dam portion to the support portion is lower than that of the same portion of the conventional electrode, and temperature of a distal end portion is higher than that of the same portion of the conventional electrode. Thus, formation of low-melting alloy due to reaction of the proximal portion of the electrode and the metal halide can be suppressed.

Growing community of inventors

Hamamatsu, Japan

Osamu Yogi