Kentaro Honda

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Energy harvesting is an enabling technology for realizing an ambient power supply for wireless sensor nodes and mobile devices. By using flexible photovolta-ic cells and piezoelectric films, we can readily harvest ambient energy if flexible energy harvesters can be realized. Conventional silicon circuits, however, are not best suited to realizing flexible(More)
—This paper presents a 95 mV startup-voltage step-up DC-DC converter for energy harvesting applications. The capac-itor pass-on scheme enables operation of the system from an input voltage of 95 mV without using additional off-chip components. To compensate for the die-to-die process variation, post-fabrication threshold voltage trimming is applied to(More)
A smart meter is essential for realizing the smart grid. In order to further reduce the energy loss in the power grid, an extremely fine-grain power monitoring system is desirable and it will require an enormous number of low-cost power meters. Existing power meters, however, do not meet the cost and size requirements. On the other hand, organic devices on(More)
8T-SRAM cell with asymmetric pass gate transistor by local electron injection is proposed to solve half select disturb. Two types of electron injection scheme: both side injection scheme and self-repair one side injection scheme are analyzed comprehensively for 65nm technology node 8T-SRAM cell and also for 6T-SRAM cell. This paper shows that in the 6T-SRAM(More)
Left ventricular pseudoaneurysm (LVP) is a rare cardiac disorder. We describe the repair of a large LVP that was identified in a 73-year-old woman 10 months after she underwent mitral valve replacement for infective endocarditis at another hospital 10 months previously. Follow-up echocardiography showed an enlarged large mass beside the left ventricle, and(More)
—A 100-V ac energy meter based on the system-on-a-film (SoF) concept, in which various devices are integrated on a flexible film, is presented. The system consists of 20-V organic CMOS digital and analog circuits with a floating gate (FG) for process variation compensation, 100-V organic pMOS rectifiers for generating a 50-Hz clock and 20-V dc power, and an(More)
—A shoe insole pedometer, which consists of a piezo-electric energy harvester and a 2 V organic pedometer circuit, has been developed as a first step toward the application of flexible large-area energy harvesting. A pseudo-CMOS 14 bit step counter records the number of steps up to 16383 steps using the harvested power. To increase the noise margin of the(More)
A flow-mediated endothelium-dependent vasodilation and endothelium-independent nitroglycerin-induced vasodilation were carried out in 70 patients and 15 age-matched adults without any atherosclerotic risk factors to clarify vascular responsiveness in patients with atherosclerotic peripheral vascular disease. The percent change in flow-mediated vasodilation(More)