Shimadzu Corporation

Kyocera Corporation

Riken Corporation

Toshiro Kimura

Daijiro Kato

Yoshihide Hayashizaki

Tomoki Sasayama

Hideki Soya

Masayoshi Ito

Hiroyuki Yoshimura

Takahide Hiramatsu

Yasuo Tsukuda

Yuji Tanaka

Yoshihiro Yuu

Taku Matsudera

Atsushi Sasaki

An analysis device including a flow channel member, a suction mechanism, and a measurement unit. The flow channel member includes a flow channel; The suction mechanism is connected to a first end of the flow channel member and is configured to introduce a liquid sample from a second end of the flow channel member to the flow channel and hold the liquid sample between fluid layers in a part of the flow channel. The measurement unit includes a light irradiation unit a light reception unit configured to receive light from the part of the flow channel and the contents of the part of the flow channel when irradiated by the light irradiation unit. The measurement unit includes an aperture member to limit light from the light irradiation unit and includes an opening having an opening width shorter than the length of the part of the flow channel.

Analysis device, analysis method, trace liquid collection device, and trace liquid collection method

A spectrophotometer has a specimen cell; a light source unit for emitting light to the specimen cell; a photodetector for detecting the light that passed through the specimen cell; a light-shielding unit for blocking the light from impinging on the photodetector at predetermined periods; a memory unit for storing output strength signals detected by the photodetector; and a controller for calculating transmittance or absorbance based on output strength signal S of the incidence duration and output strength signal DS of the light-blocked duration stored in the memory unit. The incidence duration and light-blocked duration occur in this sequence in a single period. The controller calculates the true output strength signal sof the Nperiod removed of the effects of output strength signal Sof the incidence duration of the (N&#x2212;1)period that are included in the output strength signal Sof the incidence duration of the Nperiod.

Spectrophotometer

A lamp drive device L is provided that can both light a lamp and sustain a discharge by applying a trigger voltage while a direct current voltage is supplied from a power supply circuit to the electrodes of lamp before the start of discharge. The device includes a reference amount-of-change storage unit for storing a threshold value T for the amount of change in the electrode voltage before and after start of discharge, a difference calculation unit for calculating the difference (A&#x2212;B) between the voltage monitor value B after the start of discharge and the voltage monitor value A before the start of discharge, and a lighting status determination unit for determining the lighting status by comparing the difference (A&#x2212;B) and the threshold value T and making the determination based on the change in voltage before and after the discharge.

Lamp drive device

A spectrophotometerincludes built-in detectorand external detector. When a mountable/removable optical path switcheris installed in a specimen chamber, measurement based on detection signals from built-in detectoris replaced by measurement based on detection signals from external detector. The spectrophotometer further includes a measurement data threshold-value storage unitthat stores threshold value T for measurement data from built-in detectoror external detector, and a light-receiving detector recognition unitthat recognizes which detector is able to receive the measuring light beam based on the results of a comparison between threshold value T and measurement data from built-in detectoror external detectorwhile the measuring light beam is being introduced into specimen chamber

Growing community of inventors

Kyoto, Japan

Toshiro Kimura