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Kobayakawa, JP

Akira Kobayakawa, Kodaira-Shi JP

Patent application numberDescriptionPublished
20100043541TIRE EQUIPPED WITH A SENSOR AND A METHOD OF MEASURING STRAIN AMOUNT OF THE TIRE - This invention provides a tire (02-25-2010

Junichi Kobayakawa, Tokyo JP

Patent application numberDescriptionPublished
20100194427SEMICONDUCTOR DEVICE - A semiconductor device includes: a driver that receives a power supply voltage and drives an external load with a driving capability; a measurement unit that measures a level of the power supply voltage; a code table that stores the level of the power supply voltage and code information for determining the driving capability of the driver; and a controller that reads the code information in accordance with the level of a measured power supply voltage in reference to the code table and controls the driving capability of the driver in accordance with the code information.08-05-2010

Makoto Kobayakawa, Tokyo JP

Patent application numberDescriptionPublished
20080308012Burnt Product - A burnt product is produced by burning a raw material containing chromium, in which the fine-grained portion is removed. Even in the burnt product produced from a raw material containing chromium, the chromium (VI) content is reduced.12-18-2008

Masahiko Kobayakawa, Kyoto-Shi JP

Patent application numberDescriptionPublished
20090039372Semiconductor light emitting device - A semiconductor light emitting device includes a semiconductor light emitting element, a lead electrically connected to the semiconductor light emitting element, and a resin package covering the semiconductor light emitting element and part of the lead. The resin package includes a lens facing the front of the semiconductor light emitting element. The lead includes an elongated mounting portion projecting from the resin package. The mounting portion includes a pair of first projections spaced from each other in the longitudinal direction and a second projection positioned between the first projections. The first projections and the second projection project in opposite directions from each other in the width direction of the mounting portion.02-12-2009
20090230413SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING THE SAME - A semiconductor light emitting device includes a semiconductor light source, a resin package surrounding the semiconductor light source, and a lead fixed to the resin package. The lead is provided with a die bonding pad for bonding the semiconductor light source, and with an exposed surface opposite to the die bonding pad The exposed surface is surrounded by the resin package in the in-plane direction of the exposed surface.09-17-2009
20090230424SEMICONDUCTOR LIGHT EMITTING DEVICE AND METHOD FOR MANUFACTURING THE SAME - A light emitting device includes a semiconductor light emitting element, a first lead including an element mount portion on which the semiconductor light emitting element is mounted, and a second lead electrically connected to the semiconductor light emitting element. The light emitting device further includes a resin package covering the semiconductor light emitting element and part of each of the first and the second leads. The resin package includes a lens portion facing the semiconductor light emitting element. The first lead includes a pair of standing portions spaced from each other with the element mount portion intervening between them and a pair of terminal portions extending from the standing portions in mutually opposite directions. Each of the standing portions projects from the resin package in a direction away from the lens portion.09-17-2009
20090242927SEMICONDUCTOR LIGHT EMITTING MODULE AND METHOD FOR MANUFACTURING THE SAME - A light emitting module includes a semiconductor light source, a first lead with a bonding pad to which the light source is attached, and a second lead spaced from the first lead in a first direction contained in the plane of the first die bonding pad. The second lead includes a wire bonding pad connected to the light source via a wire. The module also includes a case formed with a space elongated in the first direction for accommodating the light source. The first lead includes an extension extending from the first die bonding pad, and a mounting terminal connected to the extension. The extension extends in a second direction that is perpendicular to the first direction and contained in the plane of the first die bonding pad. The mounting terminal extends perpendicularly to the second direction. The extension overlaps the light source in the first direction.10-01-2009
20110073895SEMICONDUCTOR LIGHT EMITTING DEVICE - A semiconductor light emitting device includes a semiconductor light emitting element, a lead electrically connected to the semiconductor light emitting element, and a resin package covering the semiconductor light emitting element and part of the lead. The resin package includes a lens facing the semiconductor light emitting element. The lead includes an exposed portion that is not covered by the resin package. The exposed portion includes a first portion and a second portion, where the first portion has a first mount surface oriented backward along the optical axis of the lens, and the second portion has a second mount surface oriented perpendicularly to the optical axis of the lens.03-31-2011

Patent applications by Masahiko Kobayakawa, Kyoto-Shi JP

Masako Kobayakawa, Tokyo JP

Patent application numberDescriptionPublished
20110164641OPTICAL SEMICONDUCTOR DEVICE AND PUMPING LIGHT SOURCE FOR OPTICAL FIBER AMPLIFIER - A semiconductor device of the invention is formed so that n-type InP current blocking layers enter the inside of p-type InP cladding layers, i.e., the n-type current blocking layers ride over the upper part of the p-type InP cladding layers, so that a distance between the n-type InP current block layers composing a current blocking region is narrower than a width of the p-type cladding layers contacting with the n-type InP current blocking layers. Thereby, the semiconductor device whose leak current in the current blocking region may be reduced which permits high-output and high-temperature operations may be readily fabricated.07-07-2011

Masato Kobayakawa, Ichihara-Shi JP

Patent application numberDescriptionPublished
20090104728Gallium Nitride-Based Compound Semiconductor Multilayer Structure and Production Method Thereof - An object of the present invention is to provide a gallium nitride compound semiconductor multilayer structure useful for producing a gallium nitride compound semiconductor light-emitting device which operates at low voltage while maintaining satisfactory light emission output. The inventive gallium nitride compound semiconductor multilayer structure comprises a substrate, and an n-type layer, a light-emitting layer, and a p-type layer formed on the substrate, the light-emitting layer having a multiple quantum well structure in which a well layer and a barrier layer are alternately stacked repeatedly, said light-emitting layer being sandwiched by the n-type layer and the p-type layer, wherein the well layer comprises a thick portion and a thin portion, and the barrier layer contains a dopant.04-23-2009

Masato Kobayakawa, Chiba JP

Patent application numberDescriptionPublished
20080230800N-Type Group III Nitride Semiconductor Layered Structure - An object of the present invention is to provide a low-resistance n-type Group III nitride semiconductor layered structure having excellent flatness and few pits. The inventive n-type group III nitride semiconductor layered structure comprises a substrate and, stacked on the substrate, an n-type impurity concentration periodic variation layer comprising an n-type impurity atom higher concentration layer and an n-type impurity atom lower concentration layer, said lower concentration layer being stacked on said higher concentration layer.09-25-2008

Satoshi Kobayakawa, Susono-Shi JP

Patent application numberDescriptionPublished
20110083427EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE - The present invention provides an internal combustion engine exhaust purification apparatus includes a filter configured to collect particulate matter contained in exhaust gas, a selective catalytic reduction converter provided downstream of the filter to reduce nitrogen oxide contained, an oxidation catalyst converter with an adsorption function provided upstream of the converter to temporarily adsorb the nitrogen oxide contained in the exhaust gas, a burner configured to increase the temperature of the exhaust gas flowing into the filter, the selective catalytic reduction converter, and the oxidation catalyst converter to set the temperature of the filter to at least a predetermined recovery temperature, thus recovering the filter, and an ECU configured to inhibit the burner from being started when the burner is otherwise to be started but if the selective catalytic reduction converter has not been activated.04-14-2011

Satoshi Kobayakawa, Kawaguguchi JP

Patent application numberDescriptionPublished
20110155109EXHAUST GAS RECIRCULATION DEVICE OF ENGINE - An exhaust gas recirculation device of an engine (06-30-2011

Shuji Kobayakawa, Kawasaki-Shi JP

Patent application numberDescriptionPublished
20100080165MIMO REPEATER APPARATUS, MIMO HANDHELD TERMINAL APPARATUS, MIMO WIRELESS COMMUNICATION METHOD - An apparatus performing wireless communication with a group of a plurality of base station antennas disposed on a wireless base station apparatus side in accordance with a multi-input multi-output wireless communication system includes a group of a plurality of repeater antennas disposed around the body of a user. The apparatus further includes a repeater base apparatus being connected to the group of the repeater antennas, communicating, with a handheld mobile terminal apparatus carried by the user, transmission/reception data in the handheld mobile terminal apparatus in accordance with a short-distance wireless communication system, and communicating, between the group of the plurality of the repeater antennas and the group of the base station antennas, the transmission/reception data in accordance with the multi-input multi-output wireless communication method.04-01-2010

Shuji Kobayakawa, Kawasaki JP

Patent application numberDescriptionPublished
20110053494WIRELESS DEVICE, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD - A wireless device selects another wireless device that is the relay destination of data and transmits data to a data collector that collects data. Then, the wireless device transmits data obtained by adding relay-destination-device identification information of identifying the another wireless device that is a relay destination to the same as data transmitted to the data collector to the selected wireless device that is the relay destination of data. Moreover, the wireless device transmits the received data to the data collector when data obtained by adding relay-destination-device identification information is received from another wireless device and the device itself corresponds to the relay-destination-device identification information.03-03-2011
20110183690RADIO COMMUNICATION APPARATUS, POSITION MEASUREMENT METHOD FOR RADIO COMMUNICATION APPARATUS, AND RADIO COMMUNICATION SYSTEM - A radio communication apparatus for performing radio communication with a terminal apparatus, including: a calculation unit which calculates first and second propagation distances indicating path lengths of first and second paths respectively; a decision unit which determines whether the first and second received waves are reflected waves or direct waves, respectively, based on the first and second propagation distances, and outputs a first or second terminal-reflection point distance on determining the first or second received wave as the reflected wave, or outputs the first or second propagation distance on determining the first or second received wave as the direct wave; and a position measurement unit which measures the position of the terminal apparatus based on the first or second terminal-reflection point distance, or the first or second propagation distance.07-28-2011

Tadahiko Kobayakawa, Anjo-Shi JP

Patent application numberDescriptionPublished
20100084150Electric power tool, tool body, and battery pack - An electric power tool includes a tool body and a battery pack. A terminal voltage setting unit of the tool body sets a voltage of a body side terminal to a first voltage when a command to drive a drive portion of the tool body is issued by a switch of the tool body. A voltage changing unit of the battery pack changes a voltage of a battery side terminal from the first voltage to a second voltage when supply of electric power from the battery pack to the drive portion is permitted.04-08-2010
20100085008Monitoring system for electric power tool, battery pack for electric power tool, and battery charger for electric power tool - A battery monitoring system for electric power tool includes a battery pack for electric power tool and an auxiliary power source. The battery pack has a battery and a monitoring circuit. The battery is provided with at least one battery cell. The monitoring circuit is operated by electric power supplied from the battery, and monitors a status of the battery. The auxiliary power source outputs electric power allowing the monitoring circuit to operate. The monitoring circuit is configured such that, when the monitoring circuit is unoperational with the electric power of the battery due to a decrease in a voltage of the battery, the monitoring circuit becomes operational by the electric power supplied from the auxiliary power source.04-08-2010
20100085010Battery pack for power tool, and power tool - A battery pack for power tool includes a battery, a monitoring circuit, and a sleep mode switching unit. The battery includes at least one battery cell. The monitoring circuit is operated by receiving power supply from the battery. The sleep mode switching unit switches the battery pack to a sleep mode by stopping at least a part or all of operations of the monitoring circuit when the monitoring circuit detects a discharge end state where a discharge current from the battery is equal to or lower than a predetermined set current value, and the monitoring circuit further detects at least one of a voltage stable state where a voltage change amount in the battery cell is within a predetermined stable range of voltage change amount and a temperature stable state where a temperature change amount in the battery is within a predetermined stable range of temperature change amount.04-08-2010
20100085020Charging system for electric power tool, battery pack for electric power tool, and battery charger for electric power tool - Each of a battery charger and a battery pack has a microcomputer. The respective microcomputers mutually perform data communication while the battery pack is being charged by the battery charger, and confirm an operational state of the microcomputer of the communication counterpart (mutual operation confirmation) based on a result of the data communication. When an abnormality of one of the microcomputers is detected, the other microcomputer executes a predetermined process for stopping charging.04-08-2010

Takashi Kobayakawa, Zama-Shi JP

Patent application numberDescriptionPublished
20090256390VEHICLE BODY STRUCTURE INCLUDING A CANISTER - When a luggage floor moves forward of the vehicle by an external force from the rear of the vehicle, a front surface portion of the luggage floor strikes left and right rear side leg portions of a rear suspension member to avoid applying an input load to the canister. The canister is disposed at nearly the same position as the left and right rear side leg portions of the rear suspension member or at a position more forward than that position.10-15-2009

Tsuyoshi Kobayakawa, Kanagawa JP

Patent application numberDescriptionPublished
20110210641ARMATURE OF ELECTRIC MOTOR AND ELECTRIC MOTOR - An armature of an electric motor includes a core and a winding. The core has a plurality of slots and a plurality of teeth formed between the slots. The winding is composed of a plurality of wires. The winding has a plurality of coil parts and connecting portions. The coil parts are inserted into the slots and wound around and across the teeth. The connecting portions connect the coil parts together. The winding has a twisted shape in the connecting portions.09-01-2011