Olympus Optical Company, Ltd.

Kiyozou Koshiishi

Etsuo Shinohara

Tomoki Funakubo

Yasuharu Hakamatsuka

Mamoru Aihara

Kazuhiro Watanabe

Sadao Shigetomi

Masatsugu Shimomura

An FET sensor apparatus comprising a sensor, a base member, and a support. The sensor comprises a semiconductor substrate having a predetermined crystal plane, a field-effect transistor formed on the semiconductor substrate, and a gate portion arranged on at least one of the major surfaces of the semiconductor substrate. The base member has a through hole in which the field-effect transistor is fitted. The support supports the sensor in the through hole in watertight fashion, with said gate portion exposed through an end of the hole.

FET sensor apparatus of flow-cell adaptive type and method of

An optical sensor for detecting a specific substance in a solution, based on optical changes, includes a substrate and a thin membrane formed on the substrate. The membrane is formed of an ion complex material of an ionic amphipathic compound with a polymer having ionic groups of the opposite electrical charge, a potential-sensitive dye and a substance-selective compound.

Optical sensor

A dental centrifugal casting apparatus includes a crucible for receiving a dental casting material, a crucible holding unit for holding the crucible, a heating furnace such as a high-frequency induction heating furnace for heating and melting the dental casting material in the crucible, a crucible forward and backward rotary driving unit for driving the crucible holding unit forward and backward so as to insert the crucible into the heating furnace to heat and melt the material in the crucible and remove the crucible from the furnace, and for rotationally driving the crucible holding unit so as to inject the melted material into a mold at a predetermined position, a bucket for holding the mold in which the molten material is injected by the forward and backward motion and the rotation of the crucible performed by the crucible forward and backward rotary driving unit, and a centrifuge unit for rotating a rotary arm swingably mounting the bucket on its end portion at high speed immediately after the material is injected to apply a centrifugal force to the mold and molten material, thereby performing casting.

Dental centrifugal casting apparatus

Growing community of inventors

Sagamihara, Japan

Kiyozou Koshiishi