Akira Kawai
Akira Kawai, Hikone JP
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20110043166 | Charging Circuit - A charging circuit includes a battery pack provided with one or more secondary batteries and a battery charger for charging the secondary batteries, the battery pack being detachably attachable to the battery charger. The charging circuit further includes a control unit for performing a charging control, a monitoring unit for detecting charged voltage of the secondary batteries to determine completion of charging, a storage unit storing charging data for use in the charging control of the control unit and determination of the charging completion of the monitoring unit and a changing unit for changing the charging data. The monitoring unit and the storage unit are arranged in the battery pack, and the changing unit and the control unit are arranged in the battery charger. | 02-24-2011 |
Akira Kawai, Sagamihara-Shi JP
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20100019408 | MINUTE FLOW PATH STRUCTURE BODY AND DIE - A fine channel device containing a fine channel substrate that includes a fine channel for channeling fluids, and through holes, wherein the fine channel and the through holes are interconnected via an interconnection portion, as well as a mold that is equipped with pins forming the through holes in the fine channel substrate, wherein the positions of the pins and the number pins be altered as desired. | 01-28-2010 |
20100051543 | FINE CHANNEL DEVICE AND A CHEMICALLY OPERATING METHOD FOR FLUID USING THE DEVICE - A fine channel device including a fine channel provided with at least two inlet ports for feeding fluid, inlet channels communicated with the inlet ports, a confluent portion communicated with the inlet channels, a branch portion communicated with the fine channel, from which at least two outlet channels are branched to feed predetermined amounts of fluid, and outlet ports communicated with the outlet channels. The fine channel is provided with a plurality of partition walls arranged along a boundary formed by at least two kinds of fluid fed from the inlet ports so as not to cause mutual contamination of fluid. Furthermore, the plurality of partition walls are spaced apart at intervals in a flowing direction of fluid. | 03-04-2010 |
Akira Kawai, Kanagawa-Ken JP
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20080246172 | FINE CHANNEL DEVICE, FINE PARTICLE PRODUCING METHOD AND SOLVENT EXTRACTION METHOD - A fine channel device capable of producing fine particles in an industrial scale, hardening the fine particles immediately after the production and recovering the fine particles from a medium without collapsing the shape of the produced fine particles, a fine particle producing method using the fine channel device and a solvent extraction method using the fine channel, are presented. The fine channel device comprises a fine channel provided with an inlet port and an inlet channel which feed a dispersion phase, an inlet port and an inlet channel which feed a continuous phase, and an outlet channel and an outlet port which discharge fine particles produced by the dispersion phase and the continuous phase, wherein the inlet channel for feeding the dispersion phase and the inlet channel for feeding the continuous phase are joined at an arbitrary angle, and the two inlet channels are connected to the outlet channel at the arbitrary angle. | 10-09-2008 |
Akira Kawai, Shunan-Shi JP
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20080223720 | MICROCHANNEL STRUCTURE AND FINE-PARTICLE PRODUCTION METHOD USING THE SAME - A microchannel structure including a dispersed-phase introduction channel which communicates with a dispersed-phase introduction inlet; a continuous-phase introduction channel which communicates with a continuous-phase introduction inlet; a discharge channel which communicates with a discharge outlet; a fine-particle formation channel; and a plurality of branch channels for dispersed-phase introduction which are microchannels; wherein one end of the fine-particle formation channel in a fluid traveling direction communicates with the continuous-phase introduction channel whereas the other end thereof communicates with the discharge channel; and wherein a side part of the dispersed-phase introduction channel and side part of the fine-particle formation channel communicate via the plurality of branch channel for dispersed-phase introduction. | 09-18-2008 |
Akira Kawai, Shiga JP
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20130015789 | ELECTRIC TOOLAANM Miyazaki; HiroshiAACI ShigaAACO JPAAGP Miyazaki; Hiroshi Shiga JPAANM Shimizu; HidenoriAACI ShigaAACO JPAAGP Shimizu; Hidenori Shiga JPAANM Kawai; AkiraAACI ShigaAACO JPAAGP Kawai; Akira Shiga JPAANM Okada; MasaakiAACI ShigaAACO JPAAGP Okada; Masaaki Shiga JP - An electric tool comprises a removable battery pack | 01-17-2013 |
20130063079 | CHARGER - A charger includes an output circuit unit to output a charging current to a secondary battery, a voltage detection unit to detect a voltage of the secondary battery, and a control unit to control the output circuit unit, whereby constant current charging and constant voltage charging are performed. The control unit decreases a constant current value of the charging current by stages during the constant current charging and determines that the secondary battery has deteriorated by using a first voltage drop value of the secondary battery occurring upon first conversion and a second voltage drop value of the secondary battery occurring upon second conversion. | 03-14-2013 |
20130154578 | CHARGE CIRCUIT, AND BATTERY-CHARGER ASSEMBLAGE WITH THE CHARGE CIRCUIT - A charge circuit is composed of a first circuit and a second circuit. Said second circuit is provided at a battery pack in which a secondary battery is comprised. Said first circuit is provided at a charger for charging said secondary battery. Said charge circuit comprises: an output power supply section; a control section configured to control said output power supply section to perform a charging operation; a memory provided at said second circuit and storing a number of charging; and a threshold current setting section. Said control section is configured to, in said charging operation, perform firstly a constant current charging operation, and then perform a constant voltage charging operation, and finish the charging operation when a charging current reaches a charge stop current value. Said threshold current setting section is configured to decrease said charge stop current value along with the increase of said number of charging. | 06-20-2013 |
Akira Kawai, Mie JP
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20130154584 | ELECTRIC TOOL ADAPTOR AND ELECTRIC TOOL SYSTEM USING SAME - An electric tool adaptor is configured to be disposed between an electric tool and a battery pack and attached detachably with respect to the electric tool and the battery pack. This adaptor includes a DC-DC converter configured to increase or reduce a voltage of the battery pack to convert the voltage to a drive voltage of the electric tool and supply the drive voltage to the electric tool. | 06-20-2013 |