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Hiroki Nagai

Hiroki Nagai, Aichi-Ken JP

Patent application numberDescriptionPublished
20100047686 ELECTRODE STRUCTURE AND BATTERY DEVICE MANUFACTURING METHOD - An electrode is provided with a metal terminal extending from a battery module main body, a bolt which has an expanded section configuring a retaining section at a rear end portion and penetrates the metal terminal upward, and an insulating body which insulates the metal terminal and the battery module case one from the other. The insulating body is provided with a drop preventing section which abuts at least a lower surface of the expanded section of the bolt and prevents the bolt from dropping from the metal terminal.02-25-2010
20100203371BATTERY - A battery (08-12-2010
20110039154BATTERY - A battery is equipped with a case (02-17-2011
20110092111ELECTRODE STRUCTURE - An electrode structure for connecting a battery module to a bus bar is provided. When a bolt is in advance passed through and temporarily fixed to a metal terminal to be connected to a bus bar, the metal terminal is fixed on a lid, and the lid is attached to a body of a battery module, there was a problem that metal powder generated by the friction between the metal terminal and the bolt intrudes into the battery. A solution to the problem is provided by an electrode structure including a metal terminal having a base and a tip end, the base fixed to a body of a battery module, the tip end spaced apart by a predetermined distance from the body of the battery module and connected to a bus bar, a nut arranged between the tip end of the metal terminal and the body of the battery module, a rotation stopper in abutment with the nut and preventing the nut from slipping when fastening the bus bar, and a screw shaft screwed into the nut and penetrating through the tip end of the metal terminal and the bus bar.04-21-2011

Hiroki Nagai, Nagoya-Shi JP

Patent application numberDescriptionPublished
20110045345POWER SOURCE APPARATUS AND METHOD OF MANUFACTURING POWER SOURCE APPARATUS - A power source apparatus includes a case 02-24-2011

Hiroki Nagai, Niwa-Gun JP

Patent application numberDescriptionPublished
20110013899FOCUS CONTROL CIRCUIT FOR ADJUSTING THE FOCUS BY MOVING A LENS - A focus control circuit is installed in an image pickup apparatus including a lens, a driver element for adjusting the position of the lens, and a position detecting element for detecting the position of the lens. An equalizer included in the focus control circuit generates a drive signal used to adjust the position of the lens to a position to be set, based on a difference between the position of the lens identified by the position detecting element and the set position. When an instruction to vary a target position of the lens is received externally, a position setting unit included in the focus control circuit sets sequentially a plurality of positions in a range covering a new target position and a previous target position, to the equalizer before the new target position is reached from the previous target position.01-20-2011

Hiroki Nagai, Hyogo JP

Patent application numberDescriptionPublished
20090285254SEMICONDUCTOR LASER DEVICE - A semiconductor laser device has a red laser element and an infrared laser element on a substrate. The red laser element has a double hetero structure in which an InGaP-based or AlGaInP-based active layer is interposed between a first conductivity type cladding layer and a second conductivity type cladding layer having a ridge. The infrared laser element has a double hetero structure in which a GaAs-based or AlGaAs-based active layer is interposed between a first conductivity type cladding layer and a second conductivity type cladding layer having a ridge. Provided that a first electrode formed over the second conductivity type cladding layer has a width W11-19-2009
20100124244SEMICONDUCTOR LASER DEVICE - A semiconductor laser device includes a semiconductor layer including an active layer. The active layer includes: a gain region; an end face window region formed in a region of the active layer including an end face of the semiconductor layer, and having a larger band gap energy than the gain region; and a transition region formed between the gain region and the end face window region. The band gap energy of the transition region continuously changes from the band gap energy of the gain region to that of the end face window region. The gain region and a portion of the transition region located near the gain region form a current injection portion into which current is injected. The end face window region and a portion of the transition region located near the end face window region form a current non-injection portion into which current is prevented from being injected.05-20-2010

Hiroki Nagai, Osaka JP

Patent application numberDescriptionPublished
20090211215Grass Collecting Apparatus for Lawn Mower - A grass collecting apparatus for a lawn mower comprises a frame (08-27-2009
20090260339Grass Collector for a Mower - A grass collector adapted to be attached to a rear of a riding-type mower for receiving cut grass from a mower unit through a duct, the grass collector including a front container section having a rearwardly facing opening and adapted to be attached to the riding-type mower, the front container section carrying a first bottom plate having a substantially horizontal position. A rear container section is supported pivotably about a pivot point located in a rear upper region of the front container section and pivotable between a first position wherein the rear container section substantially covers the opening of the front container section and a second position pivoted from the first position to allow cut grass to fall, the rear container section having a second bottom plate having a substantially horizontal position.10-22-2009
20100031620Riding Type Mower - A riding type mower includes: a vehicle body, a driver's seat mounted on the vehicle body; an operation part arranged around the driver's seat; a mower unit provided on the vehicle body; a shutter for closing a discharge port; a shutter moving mechanism for moving the shutter between a close position closing the discharge port and an open position opening the discharge port; and a lock mechanism for locking the shutter at the close position. The mower unit includes: a mower deck; a cutting blade installed inside the mower deck; the discharge port formed in the mower deck, through which mown grass cut by the blade is discharge from the mower unit to outside. A shutter operating tool for remotely operating the shutter moving mechanism to open and close the shutter is provided in the operation part. The lock mechanism is remotely operable from the operation part.02-11-2010
20100043379Mower Unit - A mower unit includes a mower deck, a plurality of blades mounted inside the mower deck and rotatable about vertical shafts supported to the mower deck, the mower deck defining, on one lateral side thereof, a discharge outlet for discharging cut grass cut by the plurality of blades, and an opening and closing member configured to be movable to a closing position for closing the discharge outlet and also to an opening position away from the discharge outlet for opening the discharge outlet, the opening and closing member at the opening position being disposed along an outer face of the mower deck.02-25-2010

Patent applications by Hiroki Nagai, Osaka JP

Hiroki Nagai, Chiyoda-Ku JP

Patent application numberDescriptionPublished
20090176952METHOD FOR PRODUCING MELT-MOLDABLE TETRAFLUOROETHYLENE COPOLYMER - To provide a method for producing a tetrafluoroethylene copolymer, wherein the polymerization rate is excellent, the copolymer to be obtained is excellent in mechanical properties such as the tensile strength, it is free from coloration and can be melt-molded.07-09-2009
20090221726PROCESS FOR PRODUCING AQUEOUS FLUORINATED POLYMER DISPERSION HAVING REDUCED CONTENT OF FLUORINATED EMULSIFIER - The present invention provides a process for producing an aqueous fluorinated polymer dispersion having a reduced content of a fluorinated emulsifier by using a weakly basic anion-exchange resin to let it adsorb and remove a fluorinated emulsifier with excellent efficiency from an aqueous fluorinated polymer dispersion.09-03-2009

Hiroki Nagai, Anjo-Shi JP

Patent application numberDescriptionPublished
20090139818Torque converter - In sliding engagement of a clutch plate of a lock-up clutch with a front cover of a converter housing, with a difference in rotational speed therebetween, the sum of the urging force of a coil spring and the force of a lock-up discharge hydraulic pressure in a front side chamber is greater than the force of a lock-up engagement pressure in a rear side chamber. A selector valve member, accommodated in a valve chamber of a displacement selector mechanism, therefore, brings an oil chamber between the clutch plate (first piston) and a second piston into communication with the front side chamber. The hydraulic pressure of the rear side chamber received by a rear face of the piston is higher than hydraulic pressure of the oil chamber received by a front face of the piston and, therefore, the piston is displaced forwardly into frictional contact with the clutch plate and transmission of judder to an input shaft of a speed change mechanism is thereby reduced.06-04-2009
20110240432HYDRAULIC POWER TRANSMISSION - A hydraulic power transmission includes a pump impeller connected to an input member coupled to a prime mover, a turbine runner rotatable coaxially with the pump impeller, a damper mechanism having an input element, a resilient member engaged with the input element, an output element, and a lockup clutch capable of engaging the input member and the input element of the damper mechanism and releasing the engagement therebetween. The transmission also includes a dynamic damper configured in such a manner that oscillations transmitted to the input member when the input member and the input element of the damper mechanism are engaged by the lockup clutch are absorbed from the input element.10-06-2011

Hiroki Nagai, Aichi JP

Patent application numberDescriptionPublished
20110268999BATTERY, VEHICLE MOUNTING THE BATTERY, AND DEVICE MOUNTING THE BATTERY - A battery includes a current breaking mechanism 11-03-2011

Hiroki Nagai, Nagano JP

Patent application numberDescriptionPublished
20110282604BATTERY PACK, ELECTRONIC DEVICE, AND INSPECTION METHOD OF BATTERY PACK - A battery pack includes: a chargeable and dischargeable battery; and a microcomputer that acquires information on a voltage drop across the battery in a condition equivalent to no load and stores the information therein.11-17-2011