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Masao Ushikubo: Automatic analyzer. Olympus Optical, Stevens Davis Miller & Mosher, June 13, 1995: US05424036 (88 worldwide citation)

An automatic analyzer including a sampler for delivering given amounts of samples into reaction vessels arranged along a reaction line, a reagent tray for holding a plurality of reagents, a reagent delivery device for delivering given amounts of reagents into the reaction vessels, and a measuring de ...


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Masao Ushikubo: Reagent delivery device. Olympus Optical, Parkhurst & Oliff, December 1, 1987: US04710355 (31 worldwide citation)

A reagent delivery device includes a plurality of delivery syringes, and a plurality of units each having rotary valves by which respective reagent tanks and delivery nozzles are selectively connected with each other and a driving means for driving the rotary valves simultaneously. Further, in the r ...


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Masao Ushikubo: Continuous multinominal analysis method and apparatus. Olympus Optical, Kenyon & Kenyon, October 19, 1993: US05254311 (24 worldwide citation)

An automatic continuous multinominal analyzer comprises suction tubes to be inserted into vessels containing a reagent, each suction tube having a pair of electrode lines. The contacts of each pair of electrode lines are located above the suction port of the suction tube. Hence, the contacts are iso ...


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Masao Ushikubo: Liquid container for use in biochemical analysis. Olympus Optical, Stevens Davis Miller & Mosher, January 22, 1991: US04986965 (14 worldwide citation)

A container for containing a liquid for use in a biochemical analysis includes a cylindrical inner side wall, a bottom wall connected to the inner side wall at its lower end and a cylindrical outer side wall surrounding concentrically the inner side wall and being separated from the inner side wall ...


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Masao Ushikubo: Cap and a cap opening and closing device. Olympus Optical, Parkhurst & Oliff, May 7, 1985: US04515286 (5 worldwide citation)

A cap and a cap opening and closing device of a liquid container for preventing a liquid evaporation is disclosed. The cap has a plurality of projections made of an elastic material on its bottom surface. The cap opening and closing device which is used in combination with the known cap or the cap m ...


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Masao Nichogi, Masao Ushikubo: Method of stabilizing constant-temperature path. Beckman Coulter, Kilpatrick Townsend & Stockton, May 28, 2013: US08450114

Provided is an automatic analysis apparatus which can obtain stable analysis results by stabilizing a constant-temperature bath and the temperature of a reaction liquid inside reaction containers. For this purpose, the automatic analysis apparatus (1) comprises: a storage tank (10) for storing a tem ...