Inventors list

Assignees list

Classification tree browser

Top 100 Inventors

Top 100 Assignees


Hirabuki

Makoto Hirabuki, Shizuoka JP

Patent application numberDescriptionPublished
20090299223BLOOD COMPONENT COLLECTION APPARATUS AND METHOD - A blood component collection apparatus comprises a blood component collecting circuit which includes an anticoagulant line for feeding an anticoagulant and a line for collecting an initial flow of collected blood. In the blood component collection apparatus, air is intermediately present between the anticoagulant and the blood in the passage of a blood collection needle side line, after a priming operation is performed in which anticoagulant is supplied from the anticoagulant line toward the side of a centrifugal separator in the blood collection needle side line through a branch connector and after an initial flow collecting operation is performed in which the initial flow of blood is collected.12-03-2009

Makoto Hirabuki, Leuven BE

Patent application numberDescriptionPublished
20110230855BLOOD BAG SYSTEM AND CASSETTE - In a blood bag system mounted in a centrifugation and separation apparatus, a filter is settable in different appropriate orientations at storage time and usage time, and first and second tubes and a filter are arranged respectively in appropriate orientations during use. The blood bag system includes a BC pooling bag for centrifugation of buffy coat, the filter for removing white blood cells from a supernatant liquid transferred from the BC pooling bag, a platelet preserving bag for reserving the supernatant liquid that has passed through the filter, the first tube connecting the BC pooling bag and an inlet of the filter, the second tube connecting the platelet preserving bag and an outlet of the filter, a cassette fixable in the centrifugation and separation apparatus, an attachment for holding the filter, and a hinge section tiltable relative to the cassette with reference to an axis in the circumferential direction.09-22-2011

Tsuyoshi Hirabuki, Kyoto JP

Patent application numberDescriptionPublished
20080290916System Clock Generation Circuit - A system clock signal generator circuit comprising a first PLL circuit that is frequency and phase locked to a wobble signal; a frequency and phase comparator for comprising a first output signal from the first PLL circuit with a system clock signal as frequency divided by M and for outputting a second output signal based on the differences in frequency and in phase; a PLL filter for providing a predetermined cutoff to the second output signal to output a third output signal; a pulse width modulating circuit for generating a pulse wave, the carrier frequency of which is a second reference clock signal, and for outputting a fourth output signal obtained by modulating the pulse width of the pulse wave by the third output signal; a low pass filter for smoothing the fourth output signal to output a fifth output signal; a VCO circuit the control voltage of which is the fifth output signal; a first frequency divider circuit for frequency dividing an output signal of the VCO circuit by N to output a system clock signal; and a second frequency divider circuit for frequency dividing, by M, and feeding the system clock signal back to the frequency and phase comparator.11-27-2008