Kumagawa
Hiroyasu Kumagawa, Yokohama JP
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20140174868 | STRUCTURE OF STEERING WHEEL FOR VEHICLE - A vehicle steering wheel structure which, while having a configuration in which small damper masses are arranged in a distributed manner, can secure the same highly efficient vibration reducing effect as when a large damper mass is arranged, without increasing the required installation space and the cost. The vehicle steering wheel structure includes a plurality of damper masses arranged so as to be distributed in an inner region of a rim portion of a steering wheel; a connection member that connects these damper masses; and a damper module disposed in the inner region of the rim portion. | 06-26-2014 |
Hiroyasu Kumagawa, Kanagawa JP
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20150353120 | Steering Wheel Drvice - A steering wheel device that can absorb an applied impact load. A steering wheel device includes a lower cover that covers a steering column side of the steering wheel. The lower cover includes: a bottom member facing the steering column; an open portion which at a center of the bottom member and through which a steering shaft passes; slit portions formed on both sides, the slit portions being bent and curved in predetermined shapes; buffer portions formed in the bottom member and outlined by the slit portions, the buffer portions having a free end formed on a vehicle front side and a stationary end formed on a vehicle rear side; and bridge members that can be broken and bridge each of slit portions on the free end side of each of the buffer portions. | 12-10-2015 |
Katsuhiko Kumagawa, Neyagawa JP
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20110007050 | IMAGE DISPLAY APPARATUS AND IMAGE DISPLAY METHOD - When displaying moving images by using liquid crystal panels and others, a problem exists in that tail streaks occur, and image degradation is resultantly caused. To solve this problem, an echo suppression circuit divides a video signal into a pair composed of two successive frames for comparison between these two frames in signal level for the purpose of suppressing an echo phenomenon occurring when a liquid crystal panel displays video signals including moving images. If these two frames are not the same in signal level, the signal is accordingly corrected so as to equalize the signal level of these frames. Based on the video signals and others corrected by the echo suppression circuit, a controller operates the liquid crystal panel with AC drive through a source driver and a gate driver. As such, the drive voltage used to operate the liquid crystal panel with AC drive is adjusted so as to be balanced between positive and negative. In this manner, the tail streaks are prevented when displaying moving images. | 01-13-2011 |
Katsuhiko Kumagawa, Osaka JP
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20090174828 | DISPLAY DEVICE AND DRIVING METHOD THEREOF - An array substrate ( | 07-09-2009 |
20140139761 | DISPLAY DEVICE - A display device includes: a display panel including a plurality of pixels arranged in rows and columns; and a touch panel opposed to the display panel, wherein the display panel includes a non-display portion which is a region between neighboring pixels, the touch panel includes: a plurality of first electrode patterns which are formed along a first direction which is one of a row direction and a column direction of the pixels; and a plurality of second electrode patterns which are formed along a second direction which is the other one of the directions, at least a part of the first electrode patterns and at least a part of the second electrode patterns being metal, and the metal parts of the first electrode patterns and the second electrode patterns are present within the non-display portion of the display panel in plan view. | 05-22-2014 |
Kinya Kumagawa, Tokyo JP
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20150206628 | POWER CABLE - A power cable includes a steel pipe coupled to a reference potential node, three transmission cables within the steel pipe and respectively including a conductor to transmit three-phase alternating current power, and a return cable within the steel pipe and coupled to the reference potential node. Each of the three transmission cables includes a first insulating layer covering the conductor, a metal layer covering the first insulating layer, and a second insulating layer covering the metal layer. The three transmission cables are twisted around a periphery of the return cable along a longitudinal direction of the return cable, and the metal layer is coupled to the reference potential node. | 07-23-2015 |
20150206629 | POWER CABLE - A power cable includes a steel pipe coupled to a reference potential node, three transmission cables within the steel pipe and respectively including a conductor to transmit three-phase alternating current power, and a return cable within the steel pipe and coupled to the reference potential node. Each of the three transmission cables includes a first insulating layer covering the conductor, a metal layer covering the first insulating layer, and a second insulating layer covering the metal layer. The three transmission cables are twisted around a periphery of the return cable along a longitudinal direction of the return cable, and the metal layer is coupled to the reference potential node. | 07-23-2015 |
Masahiro Kumagawa, Hyogo JP
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20150070055 | RECEIVER - A received is disclosed that is capable of improving reception sensitivity while avoiding an increase in circuit scale. The receiver includes: a multi-phase local oscillation signal generating section that generates a plurality of local oscillation signals of different phases; a phase selection signal generating section that generates a phase selection signal used to select a baseband signal of a predetermined phase based on a detection result of a reception level of a high-frequency signal; and a frequency converter that frequency-converts the high-frequency signal based on the plurality of local oscillation signals, that generates a plurality of baseband signals of different phases, and that selects a baseband signal from among the plurality of baseband signals based on the phase selection signal. | 03-12-2015 |
20150084683 | HARMONIC REJECTION MIXER - A harmonic rejection mixer is disclosed that is capable of supporting wideband reception without any increase in circuit area. In this apparatus, transistors convert an RF signal to currents. Transistors perform frequency conversion based on the currents from the transistors and local oscillation signals. Transistors distribute the currents from the transistors to all transistors or some transistors based on a predetermined ratio. A load adds up the currents from the transistors and converts the resultant current to a voltage. | 03-26-2015 |
20150180418 | TRANSMITTING APPARATUS AND TRANSMISSION METHOD - A transmitting apparatus and transmission method are capable of easily and correctly mixing an in-phase component and a quadrature-phase component in a quadrature modulator. A local signal with a duty ratio of 25% or smaller is generated without using frequency which is a multiple of frequency of the local signal. Without providing switches in series to the outputs of I and Q amplifiers, a duty ratio of 25% or less is obtained. for the local signal, and class-D unit amplifiers are operated such that one of the I amplifier and the Q amplifier is connected to the output side in any state regardless of whether an output power control signal is at an on-level or an off-level. In producing the 25% duty ratio, a local signal with a 50% duty ratio is converted so as to have a duty ratio of 25% by I and Q duty converters. | 06-25-2015 |
20150194934 | QUADRATURE MODULATOR - A quadrature modulator includes a first switched capacitor power amplifier that amplifies a first high-frequency signal having a first phase, a second switched capacitor power amplifier that amplifies a second high-frequency signal having a second phase different from the first phase, a first combiner which includes at least one pair of winding wires that are magnetically coupled to each other, one winding wire in one pair being disposed on a primary side to which the amplified first high-frequency signal and the amplified second high-frequency signal are separately input and the other winding wire in the one pair being disposed on a secondary side, the first combiner combining the input amplified first high-frequency signal and the input amplified second high-frequency signal to generate a quadrature modulation signal from the secondary side, a first inductor disposed between the first switched capacitor power amplifier and the primary side of the first combiner, and a second inductor disposed between the second switched capacitor power amplifier and the primary side of the first combiner. | 07-09-2015 |
20150244324 | POWER AMPLIFICATION DEVICE AND TRANSMITTER - A power amplification device includes: a first power-amplifier array including a plurality of first switching elements that constitute a class-D power amplifier for a higher bits; a second power-amplifier array including a plurality of second switching elements that constitute a class-D power amplifier for a lower bits; and a capacitor array including a plurality of capacitance elements. The second switching elements have a larger on-resistance than the first switching elements. The first power-amplifier array is arranged between the second power-amplifier array and the capacitor array. | 08-27-2015 |
20150249431 | POWER AMPLIFICATION APPARATUS AND CONTROL METHOD - A power amplification apparatus generates a code for controlling the number of class D power amplifiers that are in operation among a plurality of class D power amplifiers, changes the duty ratio of a carrier wave signal in accordance with output voltage, and amplifies a transmission signal. A code for decreasing the number of class D power amplifiers in operation is generated when the duty ratio of the carrier wave signal is increased, while a code for increasing the number of class D power amplifiers in operation is generated when the duty ratio of the carrier wave signal is decreased. | 09-03-2015 |
Susumu Kumagawa, Yokohama-Shi JP
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20110100806 | BIAS SPUTTERING DEVICE - [Object] To provide a bias sputtering device having a self-revolving mechanism capable of reducing generation of foreign substances adhered to film formation surfaces. | 05-05-2011 |
Takayuki Kumagawa, Shizuoka-Ken JP
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20140065977 | WIRELESS COMMUNICATION APPARATUS - A wireless communication apparatus detects strength of electric wave which is transmitted from a wireless communication terminal and received through a leaky coaxial cable and executes the data transmission to the wireless communication terminal by transmitting the electric wave from the leaky coaxial cable if the detected strength of the electric wave is equal to or greater than a set value. | 03-06-2014 |
Takayuki Kumagawa, Shizuoka JP
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20100128047 | COMMODITY SALES DATA PROCESSING APPARATUS AND CONTROL METHOD THEREFOR - A commodity sales data processing apparatus including a display unit configured to display various kinds of information includes an angle-of-field setting unit configured to set an angle of field of a display screen of the display unit to a first angle of field or a second angle of field narrower than the first angle of field. An angle-of-field control section of the commodity sales data processing apparatus causes the angle-of-field setting unit to operate according to a state of use of the commodity sales data processing apparatus and set the angle of field of the display screen of the display unit to the first angle of field or the second angle of field. | 05-27-2010 |
20100128048 | COMMODITY SALES DATA PROCESSING APPARATUS AND CONTROL METHOD THEREFOR - A commodity sales data processing apparatus including a display unit configured to display various kinds of information includes an angle-of-field setting unit configured to set an angle of field of a display screen of the display unit to a first angle of field or a second angle of field narrower than the first angle of field. An angle-of-field control section of the commodity sales data processing apparatus causes the angle-of-field setting unit to operate according to a processing state of the commodity sales data processing apparatus and set the angle of field of the display screen of the display unit to the first angle of field or the second angle of field. | 05-27-2010 |
Toshiaki Kumagawa, Tokyo JP
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20090303501 | Print Management System, and Method and Program for the Same - Colors of printed materials are easily matched. Provided is a print management system used in a printing system including a plurality of printing presses and performing printing using plates respectively created for each printing press. The print management system includes a tone-curve storage unit for linking and storing identifying information of the printing presses and tone curves for the printing presses; a communication device for obtaining binary image data from a host system; a binary-image-data correction unit for creating binary image data for each of the printing presses by correcting the binary image data using the tone curves stored in the tone-curve storage unit; and CTPs for creating respective plates for each of the printing presses on the basis of the corrected binary image data. | 12-10-2009 |