Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Ayukawa, JP
Erika Ayukawa, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20090193388 | SOFTWARE DEVELOPMENT SUPPORT APPARATUS, PROGRAM AND METHOD - Before design information is published, a consistency state of reference design information referred to by the design information is revealed. By this, it is possible to reduce waste caused by redesign or the like of the design information. | 07-30-2009 |
Hiroshi Ayukawa, Matsumotoshi JP
| Patent application number | Description | Published |
|---|---|---|
| 20090061166 | ELECTRO-OPTICAL DEVICE AND ELECTRONIC APPARATUS - An electro-optical device includes: a display panel module having electronic parts provided therein; and an insulating tape that is adhered to the display panel module so as to cover the electronic parts. The insulating tape includes an adhesive portion and a non-adhesive portion. The non-adhesive portion is disposed at a position that covers a region in which the electronic parts are provided, and the adhesive portion is adhered to the display panel module in regions other than the region in which the electronic parts are provided. | 03-05-2009 |
Kazuhito Ayukawa, Tokyo JP
| Patent application number | Description | Published |
|---|---|---|
| 20090257258 | POWER SUPPLY APPARATUS AND SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE - The present invention is directed to largely improve the efficiency at the time of light load of a power supply apparatus using a PFC controller. A PFC controller is provided with a voltage-current converter. The voltage-current converter converts voltage of a signal output from an error amplifier for detecting voltage level of output voltage to an arbitrary current value and outputs the current value as a correction current. The voltage-current converter outputs a correction current of a large current value when the error amplifier detects that the load is light, and the PFC controller performs control to decrease the output voltage. | 10-15-2009 |
| 20100097041 | PFC CONTROLLER, SWITCHING REGULATOR AND POWER SUPPLY CIRCUIT - A PFC counter which controls a switching element of voltage step-up chopper circuits arranged in parallel has a circuit (SLOG) generating a switch signal (GD_S) whose phase is shifted from that of a switch signal of one of the switching elements. This circuit has a first counter (COUNTM) which counts clock signals by a cycle unit of one of the switch signals; a second counter (COUNTS) which counts clock signals by a cycle unit having a predetermined phase difference with respect to one of the switch signals; and a first register (REG | 04-22-2010 |
Kazuhito Ayukawa, Kanagawa JP
| Patent application number | Description | Published |
|---|---|---|
| 20110242861 | ELECTRONIC DEVICE AND SEMICONDUCTOR DEVICE - The present invention provides a method of improving efficiency in a full load region in a PFC power source of an active filter method by controlling a switch circuit of the PFC power source in association with an output power of the PFC power source. A pair of two switches controlling charging/discharging an inductor is provided. A MOSFET switch having a small current capacity is used as one of the switches, and an IGBT switch of a large current capacity is used as the other switch. When an output of a voltage dividing circuit for dividing voltage of an output terminal of the PFC power source is smaller than a threshold voltage, only the MOSFET switch is operated. When the output exceeds a threshold voltage, the IGBT switch is also operated. | 10-06-2011 |
Kazumasa Ayukawa, Nara JP
| Patent application number | Description | Published |
|---|---|---|
| 20080274846 | THIN AUTOTENSIONER - An autotensioner comprises a torsion coil spring interposed between a base and a rocking arm, and a tubular bushing provided between an inside surface of the base and an outside surface of the rocking arm. The torsion coil spring pushes and biases the rocking arm toward the bushing, and brings the pushing direction substantially in coincidence with the axial load direction of the force, acting on a stepped bolt supporting the rocking arm, from a belt. When the belt tension becomes high, the arm axial center displaces slightly from the base axial center, an extremely large first damping force acts on the rocking arm. When the belt tension becomes low, the smaller second damping force acts on the rocking arm. | 11-06-2008 |
Kazushige Ayukawa, Kokubunji JP
| Patent application number | Description | Published |
|---|---|---|
| 20090245004 | SEMICONDUCTOR DEVICE INCLUDING MULTI-CHIP - In order to implement a memory having a large storage capacity and a reduced data retention current, a non-volatile memory, an SRAM, a DRAM, and a control circuit are modularized into one package. The control circuit conducts assignment of addresses to the SRAM and DRAM, and stores data that must be retained over a long period of time in the SRAM. In the DRAM, a plurality of banks are divided into two sets, and mapped to the same address space, and sets are refreshed alternately. A plurality of chips of them are stacked and disposed, and wired by using the BGA and chip-to-chip bonding. | 10-01-2009 |
| 20090268502 | Semiconductor device with non-volatile memory and random access memory - A semiconductor device including a large capacity non-volatile memory and at least one random access memory, said the access time of said device being matched to the access time of each random access memory. The semiconductor memory device is comprised of: a non-volatile memory FLASH having a first reading time; a random access memory DRAM having a second reading time which is more than 100 times shorter than the first reading time; a circuit that includes a control circuit connected to both the FLASH and the DRAM and enabled to control accesses to those FLASH and DRAM; and a plurality of I/O terminals connected to the circuit. As a result, FLASH data is transferred to the DRAM before the DRAM is accessed, thereby matching the access time between the FLASH and the DRAM. Data is written back from the DRAM to the FLASH as needed, thereby keeping data matched between the FLASH and the DRAM and storing the data. | 10-29-2009 |
| 20100030952 | Memory Module, Memory System, and Information Device - A memory system including large-capacity ROM and RAM in which high-speed reading and writing are enabled is provided. | 02-04-2010 |
| 20100064101 | MEMORY CONTROLLER AND DATA PROCESSING SYSTEM - A memory controller and data processor have their operation mode switched from the page-on mode for high-speed access to a same page to the page-off mode in response to consecutive events of access to different pages, so that the memory access is performed at a high speed and low power consumption. | 03-11-2010 |
| 20110078366 | Semiconductor device with non-volatile memory and random access memory - A semiconductor device including a large capacity non-volatile memory and at least one random access memory, said the access time of said device being matched to the access time of each random access memory. The semiconductor memory device is comprised of: a non-volatile memory FLASH having a first reading time; a random access memory DRAM having a second reading time which is more than 100 times shorter than the first reading time; a circuit that includes a control circuit connected to both the FLASH and the DRAM and enabled to control accesses to those FLASH and DRAM; and a plurality of I/O terminals connected to the circuit. As a result, FLASH data is transferred to the DRAM before the DRAM is accessed, thereby matching the access time between the FLASH and the DRAM. Data is written back from the DRAM to the FLASH as needed, thereby keeping data matched between the FLASH and the DRAM and storing the data. | 03-31-2011 |
Yuichi Ayukawa, Hiroshima JP
| Patent application number | Description | Published |
|---|---|---|
| 20100313829 | COOLING-WATER PUMP ARRANGEMENT STRUCTURE OF ENGINE - A pump attaching portion is formed at a specified outside portion of an engine body beside a boss portion of a cylinder-head fastening bolt in such a manner that the pump attaching portion is continuous from the boss portion. The pump attaching portion has an attachment face, which contains a cooling-water introducing port, which is located on the outside of the flange wall and faces toward an engine front side in such a manner that the position of the attachment face is retreated from the flange wall. Accordingly, the sufficient pump-support rigidity can be ensured, restraining the pump attaching portion from projecting greatly toward the side of the engine body. | 12-16-2010 |