Moritsugu
Masaharu Moritsugu, Sagamihara-Shi JP
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20100201347 | VOLTAGE MEASURING DEVICE AND STORAGE DEVICE - According to one embodiment, a voltage measuring device that measures an input voltage signal includes a divider, a filter, an adder, and an analog-to-digital converter. The divider divides the input voltage signal into a first signal and a second signal. The filter filters the first signal and attenuates a direct current component of the first signal less than a predetermined frequency component of an alternating current component of the first signal. The adder adds an output signal of the filter to the second signal. The analog-to-digital converter converts an output signal of the adder into a digital signal. The divider adjusts the amplitude of at least one of the first signal and the second signal such that the level of a direct current component of the output signal of the adder is in the input range of the analog-to-digital converter. | 08-12-2010 |
Masaharu Moritsugu, Kawasaki JP
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20100061008 | MAGNETIC DISK DRIVE - A magnetic disk drive includes a switching regulator configured to generate an output voltage, and a magnetic disk control unit that receives the output voltage as a power supply and performs data write and read operations on a magnetic recording medium. The switching regulator includes a voltage conversion part configured to generate a second voltage by switching a first voltage, a smoothing part configured to smooth the second voltage to thus produce an output voltage, a control part configured to control the switching on the basis of a difference between the output voltage and a reference voltage to thus stabilize the output voltage, and a reference voltage changing part configured to change the reference voltage in accordance with an operation mode of the magnetic disk control unit. | 03-11-2010 |
Shunsuke Moritsugu, Saitama JP
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20100005789 | CONNECTING STRUCTURE OF EXHAUST SYSTEM MEMBER AND INSERTION MEMBER - A connecting structure of an exhaust system member and an insertion member includes a first divided part | 01-14-2010 |
20150017074 | EXHAUST GAS CLEANING CATALYST APPARATUS - An exhaust gas cleaning catalyst apparatus includes: a catalyst carrier; an outer tube for storing the catalyst carrier; and a holding member interposed between the catalyst carrier and the outer tube in contact with the outer peripheral surface of the catalyst carrier and the inner peripheral surface of the outer tube, wherein a clearance between the inner peripheral surface of the outer tube and the outer peripheral surface of the catalyst carrier narrows toward the flow direction of exhaust gas. | 01-15-2015 |
Takahiro Moritsugu, Tokyo JP
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20110206499 | DOUBLE CASING TYPE PUMP AND HEAD ADJUSTING METHOD THEREOF - Providing a double casing type pump and a head adjusting method thereof, wherein, the performance of the pump, especially, the head of the pump can be adjusted without large-scale work as well as without component disassembly. A double casing type pump, comprising: a plurality of impellers fixed to a rotation shaft, an inner casing that shrouding the impellers; an outer casing shrouding the inner casing and having a suction opening and a discharge opening; wherein, the pump further comprises: a space formed between the inner casing and the outer casing, the space communicating with the discharge opening; a bypass hole connecting the space to the working fluid passage in the inner casing, the pressure in the working fluid passage being lower than the stagnation fluid in the space; and, the bypass hole comprises a throat diameter adjusting member having a through-hole therein for determining the throat area of the bypass hole. Further, a plurality of throat diameter adjusting members is prepared in advance, each member having different throat area; a throat diameter adjusting member is selected out of the whole members so that the head of the pump remains within a predetermined range with the selected member. | 08-25-2011 |