Sobu, JP
Masahiro Sobu, Chiba-Shi JP
Patent application number | Description | Published |
---|---|---|
20140197996 | PLANAR INVERTED F ANTENNA - Provided is a planar inverted F antenna to which a feeding line can be readily connected. Two slits are provided from the open end side of a main conductive plate that functions as an excitation conductive plate up to locations where input impedance is Z (=50Ω). Between these slits is used as a microstrip line (MSL) and the width (w) is determined such that the characteristic impedance for the transmission line is Z. Power can be supplied by the MSL to the locations where input impedance is Z, by providing the slits from the radiation end side of the main conductive plate and using part of the main conductive plate as the MSL. For connection of the feeding line from the outside, a characteristic impedance (Z) connection line, for example the central conductor for a coaxial line, is used and connected as the feeding pin to the open end of the MSL. The connection position for the feeding pin is not a feeding point as required for position precision, because there is no need to consider position precision and connection can, therefore, be readily made. In addition, the connection end and the radiation end of the feeding pin can be provided on the same side. | 07-17-2014 |
20140210674 | PLANAR INVERTED F ANTENNA - Provided is a planar inverted F antenna to which a feeding line can be readily connected. Two slits are provided up to locations where input impedance is Z (= | 07-31-2014 |
Masaki Sobu, Tokyo JP
Patent application number | Description | Published |
---|---|---|
20080310279 | Rewritable phase-change optical recording medium - A rewritable phase-change optical recording medium is provided, which includes a substrate, a first information layer, a spacer layer, a second information layer, and a cover layer. The second information layer includes a recording film containing Sb as a main component and V or V and In as second components. When an amorphous mark formed in the recording film is irradiated with a reproduction beam, crystallization of the amorphous mark occurs only in a central portion in the width direction of the amorphous mark. The width direction is orthogonal to the scanning direction of the laser beam. The recording film is formed of a material that exhibits a change in degree of modulation of 5% or less when recorded information is repeatedly reproduced. The change in degree of modulation is a change from when the number of times of reproduction is 100,000 to when it is 400,000. | 12-18-2008 |
20130168599 | PRECURSOR, PROCESS FOR PRODUCTION OF PRECURSOR, PROCESS FOR PRODUCTION OF ACTIVE MATERIAL, AND LITHIUM ION SECONDARY BATTERY - Active material is obtained by sintering a precursor, has a layered structure and is represented by the following formula (1). The temperature at which the precursor becomes a layered structure compound in its sintering in atmospheric air is 450° C. or less. Alternatively, the endothermic peak temperature of the precursor when its temperature is increased from 300° C. to 800° C. in its differential thermal analysis in the atmospheric air is 550° C. or less. | 07-04-2013 |
20130209871 | ACTIVE MATERIAL, PROCESS FOR PRODUCTION OF ACTIVE MATERIAL, AND LITHIUM ION SECONDARY BATTERY - An active material having high capacity and excellent charging/discharging cycle durability at high potential is provided. The active material has a layered structure and is represented by the following composition formula (1): | 08-15-2013 |
20130256591 | NEGATIVE ELECTRODE ACTIVE MATERIAL, ELECTRODE CONTAINING THE SAME, AND LITHIUM ION SECONDARY BATTERY HAVING THE ELECTRODE - A negative electrode active material mainly contains silicon and silicon oxide. In the negative electrode active material, an Ar-laser Raman spectrum thereof includes a peak A corresponding to 950±30 cm | 10-03-2013 |
20140170496 | POSITIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM-ION SECONDARY BATTERY - A positive electrode active material contains a compound represented by a chemical formula LiVOPO | 06-19-2014 |
20150093633 | POSITIVE ELECTRODE AND LITHIUM ION SECONDARY BATTERY USING THEREOF - A lithium ion secondary battery with a high electrode density and an excellent rate discharge characteristic. The positive electrode includes a positive electrode active material of a compound represented by Li | 04-02-2015 |
20150111105 | ACTIVE MATERIAL, ELECTRODE USING SAME, AND LITHIUM ION SECONDARY BATTERY - To provide an active material with high capacity, high initial charge-discharge efficiency, and high average discharge voltage. An active material according to the present invention includes a first active material and a second active material, wherein the ratio (δ) of the second active material (B) to the total amount by mole of the first active material (A) and the second active material (B) satisfies 0.4 mol %≦δ≦18 mol % [where δ=(B/(A+B))×100]. | 04-23-2015 |
Yuji Sobu, Hitachinaka JP
Patent application number | Description | Published |
---|---|---|
20160114691 | Power Conversion Device - To effectively suppress radiation and mixture of noise superimposed on a power line into a connection detection line. A power conversion device includes a connector having a wiring line which transmits DC power; and a housing in which the connector is arranged. The connector has a connection detection wiring line which detects whether the connector is connected with an external circuit. An opening part which connects with the connector is formed in the housing. An annular core formed of a magnetic substance is inserted through the opening part. The annular core is an annular member formed with a through-hole. The wiring line and the connection detection wiring line are introduced into an inside of the housing through the through-hole of the annular core. | 04-28-2016 |
Yuuji Sobu, Hitachinaka JP
Patent application number | Description | Published |
---|---|---|
20150306960 | DC-DC Converter - As an object of reducing a noise resulted from the mutual influences between circuit-configuring components, a DC-DC converter includes a high voltage circuit section that is electrically connected to a transformer, a low voltage circuit section that is electrically connected to the transformer, a housing in which the high voltage circuit section and the low voltage circuit section are accommodated, a control circuit board that controls the driving of the low voltage circuit section, and a frame that supports the control circuit board. The frame is arranged on a position facing a bottom surface of the housing while crossing the low voltage circuit section. The housing includes a first wall that separates a first space in which the high voltage circuit section is accommodated and a second space in which circuit components configuring the low voltage circuit section are accommodated. The frame forms a second wall that protrudes toward a direction approaching a leading end of the first wall. | 10-29-2015 |